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2
.gitignore vendored
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@ -34,5 +34,3 @@ bin/
target
*.scr
DB/*

85
Lab.Client/pom.xml
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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>me.zinch</groupId>
<artifactId>Lab7-Client</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<name>Lab7-Client</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.target>17</maven.compiler.target>
<maven.compiler.source>17</maven.compiler.source>
</properties>
<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
<version>2.15.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jsr310</artifactId>
<version>2.17.0</version>
</dependency>
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator</artifactId>
<version>8.0.1.Final</version>
</dependency>
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>jakarta.el</artifactId>
<version>5.0.0-M1</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.23.1</version>
</dependency>
<dependency>
<groupId>me.zinch</groupId>
<artifactId>Lab7-Domain</artifactId>
<version>1.0</version>
<scope>compile</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<groupId>org.apache.maven.plugins</groupId>
<version>3.7.1</version>
<configuration>
<archive>
<manifest>
<mainClass>me.zinch.Lab7.Client.App</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>3.6.3</version>
</plugin>
</plugins>
</build>
</project>

14
Lab.Client/src/main/java/me/zinch/Lab7/Client/App.java
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@ -1,14 +0,0 @@
package me.zinch.Lab7.Client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.console.ShutdownHook;
/**
* Main class for running the application.
*/
public class App {
public static void main(String[] args) {
Runtime.getRuntime().addShutdownHook(new ShutdownHook());
Console.run();
}
}

64
Lab.Client/src/main/java/me/zinch/Lab7/Client/client/Client.java
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@ -1,64 +0,0 @@
package me.zinch.Lab7.Client.client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.exceptions.ConnectionErrorException;
import me.zinch.Lab7.Client.exceptions.ResponseException;
import me.zinch.Lab7.Domain.net.BodylessMessage;
import me.zinch.Lab7.Domain.net.Message;
import me.zinch.Lab7.Domain.net.MessageType;
import me.zinch.Lab7.Domain.net.User;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.Socket;
public class Client {
private final String address;
private final int port;
private User user;
public Client(String address, int port) throws ConnectionErrorException, ResponseException {
this.address = address;
this.port = port;
try {
if (sendMessage(new BodylessMessage(MessageType.HELLO)).getType() == MessageType.HELLO) {
Console.log(String.format("Соединение с сервером %s:%s установлено", address, port));
}
} catch (IOException | ClassNotFoundException e) {
throw new ResponseException();
}
}
public Message sendMessage(Message message) throws ClassNotFoundException, IOException {
try (var socket = new Socket(address, port);
var bufferedSocketOutputStream = new BufferedOutputStream(socket.getOutputStream());
var byteArrayOutputStream = new ByteArrayOutputStream();
var objectOutputStream = new ObjectOutputStream(byteArrayOutputStream)) {
if (user != null) message.setUser(user);
objectOutputStream.writeObject(message);
objectOutputStream.flush();
bufferedSocketOutputStream.write(byteArrayOutputStream.toByteArray());
bufferedSocketOutputStream.flush();
try (var objectInputStream = new ObjectInputStream(socket.getInputStream())) {
return (Message) objectInputStream.readObject();
}
} catch (IOException e) {
throw new IOException("Сервер не доступен");
}
}
public void setUser(User user) {
this.user = user;
}
public boolean isLogin() {
return user != null;
}
}

33
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/Add.java
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@ -1,33 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Domain.net.BodyfulMessage;
import me.zinch.Lab7.Domain.net.BodylessMessage;
import me.zinch.Lab7.Domain.net.MessageType;
import java.io.IOException;
import java.util.regex.Pattern;
/**
* The Add class represents a command to add a new element to a collection.
* It extends the Command class.
*/
public class Add extends Command {
public Add() {
super("add {element}", "добавить новый элемент в коллекцию", Pattern.compile("^add"));
}
@Override
public String action(Client client) throws CommandActionException {
try {
var productDTO = Console.readProductDTO();
var request = new BodyfulMessage(MessageType.POST, Console.getLastCommand(), productDTO);
var response = (BodylessMessage) client.sendMessage(request);
return response.getBody().toString();
} catch (IOException | ClassNotFoundException e) {
throw new CommandActionException(e);
}
}
}

32
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/AddIfMax.java
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@ -1,32 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Domain.net.BodyfulMessage;
import me.zinch.Lab7.Domain.net.BodylessMessage;
import me.zinch.Lab7.Domain.net.MessageType;
import java.io.IOException;
import java.util.regex.Pattern;
/**
* The AddIfMax class represents a command to add a new element to a collection if its price value exceeds the maximum price value in the collection.
* It extends the Command class.
*/
public class AddIfMax extends Command {
public AddIfMax() {
super("add_if_max {element}", "добавить новый элемент в коллекцию, если его значение цены превышает значение наибольшей цены этой коллекции", Pattern.compile("^add_if_max"));
}
@Override
public String action(Client client) throws CommandActionException {
try {
var productDTO = Console.readProductDTO();
var response = (BodylessMessage) client.sendMessage(new BodyfulMessage(MessageType.POST, Console.getLastCommand(), productDTO));
return response.getBody().toString();
} catch (IOException | ClassNotFoundException e) {
throw new CommandActionException(e);
}
}
}

32
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/AddIfMin.java
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@ -1,32 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Domain.net.BodyfulMessage;
import me.zinch.Lab7.Domain.net.BodylessMessage;
import me.zinch.Lab7.Domain.net.MessageType;
import java.io.IOException;
import java.util.regex.Pattern;
/**
* The AddIfMin class represents a command to add a new element to a collection if its price is lower than the lowest price in the collection.
* It extends the Command class.
*/
public class AddIfMin extends Command {
public AddIfMin() {
super("add_if_min {element}", "добавить новый элемент в коллекцию, если его значение цены меньше, чем у наименьшей цены этой коллекции", Pattern.compile("^add_if_min"));
}
@Override
public String action(Client client) {
try {
var productDTO = Console.readProductDTO();
var response = (BodylessMessage) client.sendMessage(new BodyfulMessage(MessageType.POST, Console.getLastCommand(), productDTO));
return response.getBody().toString();
} catch (IOException | ClassNotFoundException e) {
throw new CommandActionException(e);
}
}
}

28
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/CheckProductOwner.java
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@ -1,28 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Domain.net.BodyfulMessage;
import me.zinch.Lab7.Domain.net.BodylessMessage;
import me.zinch.Lab7.Domain.net.MessageType;
import java.io.IOException;
public class CheckProductOwner extends Command {
public CheckProductOwner() {
super("check_product_owner", "");
}
@Override
public String action(Client client) throws CommandActionException {
try {
Long id = Long.parseLong(Console.getLastCommand().split(" ")[1]);
var response = (BodylessMessage) client.sendMessage(new BodyfulMessage(MessageType.POST, Console.getLastCommand(), id));
if (response.getType() == MessageType.ERROR) throw new CommandActionException(response.getBody().toString());
return response.getBody().toString();
} catch (IOException | ClassNotFoundException e) {
throw new CommandActionException(e);
}
}
}

11
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/Clear.java
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@ -1,11 +0,0 @@
package me.zinch.Lab7.Client.commands;
/**
* The Clear class represents a command to clear a collection.
* It extends the Command class.
*/
public class Clear extends Command {
public Clear() {
super("clear", "очистить коллекцию");
}
}

59
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/Command.java
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@ -1,59 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Domain.net.BodylessMessage;
import me.zinch.Lab7.Domain.net.MessageType;
import java.io.IOException;
import java.util.regex.Pattern;
/**
* Represents a command that can be executed.
*/
public abstract class Command {
private final String name;
private final String description;
private final Pattern pattern;
public Command(String name, String description, Pattern pattern) {
this.name = name;
this.description = description;
this.pattern = pattern;
}
public Command(String name, String description) {
this.name = name;
this.description = description;
this.pattern = Pattern.compile("^" + name);
}
public final String getName() {
return name;
}
public final String getSignature() {
return name.split(" ")[0];
}
public final String getDescription() {
return description;
}
public final Pattern getPattern() {
return pattern;
}
public final boolean checkPattern(String input) {
return pattern.matcher(input).matches();
}
public String action(Client client) throws CommandActionException {
try {
var response = (BodylessMessage) client.sendMessage(new BodylessMessage(MessageType.GET, this.getName()));
return response.getBody().toString();
} catch (IOException | ClassNotFoundException e) {
throw new CommandActionException(e);
}
}
}

19
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/Exit.java
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@ -1,19 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.console.Console;
/**
* A command to exit the program without saving to a file.
*/
public class Exit extends Command {
public Exit() {
super("exit", "завершить программу");
}
@Override
public String action(Client client) {
Console.stopAppWithoutSaving();
return "";
}
}

31
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/FilterContainsName.java
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@ -1,31 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Domain.net.BodyfulMessage;
import me.zinch.Lab7.Domain.net.BodylessMessage;
import me.zinch.Lab7.Domain.net.MessageType;
import java.io.IOException;
import java.util.regex.Pattern;
/**
* A command to filter elements whose 'name' field contains the specified substring.
*/
public class FilterContainsName extends Command {
public FilterContainsName() {
super("filter_contains_name name", "вывести элементы, значение поля name которых содержит заданную подстроку", Pattern.compile("^filter_contains_name \\w+"));
}
@Override
public String action(Client client) throws CommandActionException {
try {
String name = Console.getLastCommand().split(" ")[1];
var response = (BodylessMessage) client.sendMessage(new BodyfulMessage(MessageType.POST, Console.getLastCommand(), name));
return response.getBody().toString();
} catch (IOException | ClassNotFoundException e) {
throw new CommandActionException(e);
}
}
}

29
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/GetProductById.java
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@ -1,29 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Domain.net.BodyfulMessage;
import me.zinch.Lab7.Domain.net.BodylessMessage;
import me.zinch.Lab7.Domain.net.MessageType;
import java.io.IOException;
import java.util.regex.Pattern;
public class GetProductById extends Command {
public GetProductById() {
super("get_product_by_id {element}", "", Pattern.compile("^get_product_by_id +."));
}
@Override
public String action(Client client) throws CommandActionException {
try {
Long id = Long.parseLong(Console.getLastCommand().split(" ")[1]);
var response = (BodylessMessage) client.sendMessage(new BodyfulMessage(MessageType.POST, Console.getLastCommand(), id));
if (response.getType() == MessageType.ERROR) throw new CommandActionException(response.getBody().toString());
return response.getBody().toString();
} catch (IOException | ClassNotFoundException e) {
throw new CommandActionException(e);
}
}
}

17
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/Help.java
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@ -1,17 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
/**
* A command to display help for available commands.
*/
public class Help extends Command {
public Help() {
super("help", "вывести справку по доступным командам");
}
@Override
public String action(Client client) {
return client.isLogin() ? MainCommandManager.getRegisteredCommand() : UserCommandManager.getRegisteredCommand();
}
}

29
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/IsIdExists.java
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@ -1,29 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Domain.net.BodyfulMessage;
import me.zinch.Lab7.Domain.net.BodylessMessage;
import me.zinch.Lab7.Domain.net.MessageType;
import java.io.IOException;
import java.util.regex.Pattern;
public class IsIdExists extends Command {
public IsIdExists() {
super("is_id_exists {element}", "", Pattern.compile("^is_id_exists +."));
}
@Override
public String action(Client client) throws CommandActionException {
try {
Long id = Long.parseLong(Console.getLastCommand().split(" ")[1]);
var response = (BodylessMessage) client.sendMessage(new BodyfulMessage(MessageType.POST, Console.getLastCommand(), id));
if (response.getType() == MessageType.ERROR) throw new CommandActionException(response.getBody().toString());
return response.getBody().toString();
} catch (IOException | ClassNotFoundException e) {
throw new CommandActionException(e);
}
}
}

30
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/Login.java
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@ -1,30 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Domain.net.BodyfulMessage;
import me.zinch.Lab7.Domain.net.MessageType;
import java.io.IOException;
public class Login extends Command {
public Login() {
super("login", "войти в систему");
}
@Override
public String action(Client client) throws CommandActionException {
var user = Console.readUser();
try {
var response = client.sendMessage(new BodyfulMessage(MessageType.POST, Console.getLastCommand(), user));
if (response.getType() == MessageType.OK) {
client.setUser(user);
}
return response.getBody().toString();
} catch (ClassNotFoundException | IOException e) {
throw new CommandActionException(e.getMessage());
}
}
}

16
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/Logout.java
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@ -1,16 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
public class Logout extends Command {
public Logout() {
super("logout", "выйти из текущего пользователя");
}
@Override
public String action(Client client) throws CommandActionException {
client.setUser(null);
return "Успешно!";
}
}

47
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/MainCommandManager.java
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@ -1,47 +0,0 @@
package me.zinch.Lab7.Client.commands;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
/**
* Manages the registration and retrieval of commands.
*/
public class MainCommandManager {
private static final List<Command> commandList = new ArrayList<>();
static {
registerCommand(new Show());
registerCommand(new Exit());
registerCommand(new Info());
registerCommand(new Clear());
registerCommand(new PrintAscending());
registerCommand(new PrintUniqueManufactureCost());
registerCommand(new FilterContainsName());
registerCommand(new Add());
registerCommand(new Update());
registerCommand(new Remove());
registerCommand(new AddIfMax());
registerCommand(new AddIfMin());
registerCommand(new RemoveLower());
registerCommand(new ExecuteScript());
registerCommand(new Logout());
registerCommand(new Help());
}
public static void registerCommand(Command command) {
commandList.add(command);
}
public static String getRegisteredCommand() {
return String.join("\n", commandList
.stream()
.map(command -> String.format("%s - %s", command.getName(), command.getDescription()))
.toList());
}
public static Optional<Command> getCommandByInput(String input) {
return commandList.stream().filter(command -> command.checkPattern(input)).findFirst();
}
}

31
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/Register.java
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@ -1,31 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Domain.net.BodyfulMessage;
import me.zinch.Lab7.Domain.net.MessageType;
import me.zinch.Lab7.Domain.net.User;
import java.io.IOException;
public class Register extends Command {
public Register() {
super("register", "зарегистрироваться в системе");
}
@Override
public String action(Client client) throws CommandActionException {
var user = Console.readUser();
try {
var response = client.sendMessage(new BodyfulMessage(MessageType.POST, Console.getLastCommand(), user));
if (response.getType() == MessageType.OK) {
client.setUser(new User(user.getLogin(), user.getPassword()));
}
return response.getBody().toString();
} catch (ClassNotFoundException | IOException e) {
throw new CommandActionException(e.getMessage());
}
}
}

33
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/Remove.java
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@ -1,33 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Domain.net.BodyfulMessage;
import me.zinch.Lab7.Domain.net.BodylessMessage;
import me.zinch.Lab7.Domain.net.MessageType;
import java.io.IOException;
import java.util.regex.Pattern;
/**
* A command to remove an element from the collection by its id.
*/
public class Remove extends Command {
public Remove() {
super("remove_by_id id", "удалить элемент из коллекции по его id", Pattern.compile("^remove_by_id .+"));
}
@Override
public String action(Client client) throws CommandActionException {
try {
Long id = Long.parseLong(Console.getLastCommand().split(" ")[1]);
var response = (BodylessMessage) client.sendMessage(new BodyfulMessage(MessageType.POST, Console.getLastCommand(), id));
return response.getBody().toString();
} catch (NumberFormatException e) {
return "Неверный аргумент, id может быть только число";
} catch (IOException | ClassNotFoundException e) {
throw new CommandActionException(e);
}
}
}

33
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/RemoveLower.java
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@ -1,33 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Domain.net.BodyfulMessage;
import me.zinch.Lab7.Domain.net.BodylessMessage;
import me.zinch.Lab7.Domain.net.MessageType;
import java.io.IOException;
import java.util.regex.Pattern;
/**
* A command to remove all elements from the collection that have ids lower than the specified id.
*/
public class RemoveLower extends Command {
public RemoveLower() {
super("remove_lower id", "удалить из коллекции все элементы, меньшие, чем заданный по id", Pattern.compile("^remove_lower .+"));
}
@Override
public String action(Client client) {
try {
Long id = Long.parseLong(Console.getLastCommand().split(" ")[1]);
var response = (BodylessMessage) client.sendMessage(new BodyfulMessage(MessageType.POST, Console.getLastCommand(), id));
return response.getBody().toString();
} catch (NumberFormatException e) {
return "Неверный аргумент, id может быть только число";
} catch (IOException | ClassNotFoundException e) {
throw new CommandActionException(e);
}
}
}

10
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/Save.java
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@ -1,10 +0,0 @@
package me.zinch.Lab7.Client.commands;
/**
* A command to save the collection to a file.
*/
public class Save extends Command {
public Save() {
super("save", "save the collection to a file");
}
}

52
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/Update.java
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@ -1,52 +0,0 @@
package me.zinch.Lab7.Client.commands;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.console.Console;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Domain.net.BodyfulMessage;
import me.zinch.Lab7.Domain.net.BodylessMessage;
import me.zinch.Lab7.Domain.net.MessageBody;
import me.zinch.Lab7.Domain.net.MessageType;
import java.io.IOException;
import java.util.regex.Pattern;
/**
* A command to update the value of an element in the collection, whose id is specified.
*/
public class Update extends Command {
public Update() {
super("update id {element}", "обновить значение элемента коллекции, id которого равен заданному", Pattern.compile("^update .+"));
}
@Override
public String action(Client client) throws CommandActionException {
try {
var command = Console.getLastCommand();
Long id = Long.parseLong(command.split(" ")[1]);
var isIdExists = new IsIdExists();
Console.appendHistory(String.format("%s %s", isIdExists.getSignature(), id));
isIdExists.action(client);
var checkProductOwner = new CheckProductOwner();
Console.appendHistory(String.format("%s %s", checkProductOwner.getSignature(), id));
checkProductOwner.action(client);
var getProductById = new GetProductById();
Console.appendHistory(String.format("%s %s", getProductById.getSignature(), id));
var product = getProductById.action(client);
Console.log("Вы собираетесь обновить следующий продукт");
Console.log(product);
var productDTO = Console.readProductDTO();
var response = (BodylessMessage) client.sendMessage(
new BodyfulMessage(MessageType.POST, command,
new MessageBody(String.format("%s %s", command, id), productDTO)));
return response.getBody().toString();
} catch (IOException | ClassNotFoundException | NumberFormatException e) {
throw new CommandActionException(e);
}
}
}

32
Lab.Client/src/main/java/me/zinch/Lab7/Client/commands/UserCommandManager.java
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@ -1,32 +0,0 @@
package me.zinch.Lab7.Client.commands;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
public class UserCommandManager {
private static final List<Command> commandList = new ArrayList<>();
static {
registerCommand(new Login());
registerCommand(new Register());
registerCommand(new Exit());
registerCommand(new Help());
}
public static void registerCommand(Command command) {
commandList.add(command);
}
public static String getRegisteredCommand() {
return String.join("\n", commandList
.stream()
.map(command -> String.format("%s - %s", command.getName(), command.getDescription()))
.toList());
}
public static Optional<Command> getCommandByInput(String input) {
return commandList.stream().filter(command -> command.checkPattern(input)).findFirst();
}
}

229
Lab.Client/src/main/java/me/zinch/Lab7/Client/console/Console.java
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@ -1,229 +0,0 @@
package me.zinch.Lab7.Client.console;
import me.zinch.Lab7.Client.client.Client;
import me.zinch.Lab7.Client.commands.MainCommandManager;
import me.zinch.Lab7.Client.commands.UserCommandManager;
import me.zinch.Lab7.Client.exceptions.ColorFormatException;
import me.zinch.Lab7.Client.exceptions.CommandActionException;
import me.zinch.Lab7.Client.exceptions.ConnectionErrorException;
import me.zinch.Lab7.Client.exceptions.ResponseException;
import me.zinch.Lab7.Client.exceptions.UnitOfMeasureFormatException;
import me.zinch.Lab7.Domain.models.Color;
import me.zinch.Lab7.Domain.models.Coordinates;
import me.zinch.Lab7.Domain.models.Location;
import me.zinch.Lab7.Domain.models.Person;
import me.zinch.Lab7.Domain.models.ProductDTO;
import me.zinch.Lab7.Domain.models.UnitOfMeasure;
import me.zinch.Lab7.Domain.net.User;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Objects;
import java.util.Scanner;
/**
* Console class provides methods for interacting with the console, reading user input, and managing application flow.
* This class includes methods for appending input history, stopping the application, reading product DTO from the console, and running the application loop.
*/
public class Console {
private static final Scanner scanner = new Scanner(System.in);
private static final List<String> history = new ArrayList<>();
private static boolean isRunning = true;
private static boolean isExitMessageShowed = false;
private static Client client;
public static void appendHistory(String input) {
history.add(input);
}
public static void log(Object msg) {
if (isRunning) System.out.println(msg.toString());
}
public static void log() {
log("");
}
public static void stopAppWithoutSaving() {
showExitMessage();
isRunning = false;
}
public static void stopAppWithSaving() {
stopAppWithoutSaving();
}
public static void showExitMessage() {
if (!isExitMessageShowed) log("\nВсего хорошего!");
isExitMessageShowed = true;
}
public static String getLastCommand() {
return history.get(history.size() - 1);
}
private static String readString() {
if (!scanner.hasNextLine()) Console.stopAppWithSaving();
var input = scanner.nextLine().trim();
return input.isEmpty() ? null : input;
}
private static Long readLong() {
var input = readString();
if (input == null || input.isEmpty()) return null;
try {
return Long.parseLong(input);
} catch (NumberFormatException e) {
throw new NumberFormatException(String.format("Не могу распознать %s как число", input));
}
}
private static Color readColor() throws ColorFormatException {
System.out.format("Цвет волос(%s): ", Color.getColorsString());
var input = readString();
if (input == null || input.isEmpty()) return null;
try {
return Color.create(Integer.parseInt(input));
} catch (NumberFormatException | ArrayIndexOutOfBoundsException e) {
try {
return Color.create(input);
} catch (IllegalArgumentException ex) {
throw new ColorFormatException(ex.getMessage());
}
}
}
private static UnitOfMeasure readUnitOfMeasure() throws UnitOfMeasureFormatException {
System.out.format("Единица измерения(%s): ", UnitOfMeasure.getUnitOfMeasuerString());
var input = readString();
try {
return UnitOfMeasure.create(Integer.parseInt(input));
} catch (NumberFormatException | ArrayIndexOutOfBoundsException e) {
try {
return UnitOfMeasure.create(input);
} catch (IllegalArgumentException ex) {
throw new ColorFormatException(ex.getMessage());
}
}
}
private static Location readLocation() throws NumberFormatException {
System.out.print("Создать поле Location? (Y/n): ");
var input = readString();
if (input != null && input.equalsIgnoreCase("n")) return null;
System.out.print("Координата x локации: ");
var locationX = Float.parseFloat(readString());
System.out.print("Координата y локации: ");
var locationY = Integer.parseInt(readString());
System.out.print("Название: ");
var locationName = readString();
return new Location(locationX, locationY, locationName);
}
private static void setField(String fieldName, Runnable function) {
while (isRunning) {
if (fieldName != null) System.out.format("%s: ", fieldName);
try {
function.run();
return;
} catch (NullPointerException e) {
log("Произошла ошибка при заполнении поля\nПоле не может быть пустым");
} catch (Exception e) {
System.out.format("Произошла ошибка при заполнении поля%n%s%n", e.getMessage());
}
}
}
private static void setField(Runnable function) {
setField(null, function);
}
private static String readField(String message) {
System.out.print(message + ": ");
return readString();
}
public static ProductDTO readProductDTO() {
var productDTO = new ProductDTO();
var coordinates = new Coordinates();
var owner = new Person();
log("Заполните следующие поля: ");
setField("Название [не может быть пустым]", () -> productDTO.setName(readString()));
setField("Координата x [должна быть меньше 884]", () -> coordinates.setX(readLong()));
setField("Координата y [должна быть больше -427, не может быть пустой]", () -> coordinates.setY(readLong()));
setField("Цена [должна быть больше 0, не может быть пустой]", () -> productDTO.setPrice(readLong()));
setField("Номер части [не больше 82 символов, должен быть уникальным]", () -> productDTO.setPartNumber(readString()));
setField("Себестоимость [не может быть пустым]", () -> productDTO.setManufactureCost(readLong()));
setField(() -> productDTO.setUnitOfMeasure(readUnitOfMeasure()));
setField("Имя владельца [не может быть пустым]", () -> owner.setName(readString()));
setField("Данные паспорта [длина строки от 5 до 22, не может быть пустым]", () -> owner.setPassportID(readString()));
setField(() -> owner.setHairColor(readColor()));
setField(() -> owner.setLocation(readLocation()));
productDTO.setCoordinates(coordinates);
productDTO.setOwner(owner);
return productDTO;
}
public static String readPassword() {
var msg = "Пароль пользователя";
var console = System.console();
return Objects.isNull(console) ? readField(msg) : Arrays.toString(console.readPassword(msg + ": "));
}
public static User readUser() {
var user = new User();
log("Заполните следующие поля: ");
setField("Имя пользователя", () -> user.setLogin(readString()));
setField(() -> user.setPassword(readPassword()));
return user;
}
public static void run() {
while (client == null) {
try {
var address = readField("Хост");
int port = Integer.parseInt(readField("Порт"));
if (port > 65535 || port < 1) throw new NumberFormatException();
client = new Client(address, port);
} catch (NumberFormatException e) {
log("Порт должен быть числом от 1 до 65535");
} catch (ResponseException | ConnectionErrorException e) {
log("Ошибка при подключении\nПопробуйте ещё раз");
}
}
log("Добро пожаловать! Для просмотра команд введите help");
while (isRunning) {
System.out.print(":");
try {
var input = scanner.nextLine().trim();
var command = client.isLogin() ? MainCommandManager.getCommandByInput(input) : UserCommandManager.getCommandByInput(input);
if (command.isPresent()) {
appendHistory(input);
try {
log(command.get().action(client));
} catch (CommandActionException e) {
log(e.getMessage());
}
} else {
log("Такой команды не существует. Напишите help, чтобы посмотреть список доступных команд.");
}
} catch (NoSuchElementException e) {
stopAppWithoutSaving();
}
log();
}
scanner.close();
}
}

10
Lab.Client/src/main/java/me/zinch/Lab7/Client/console/ShutdownHook.java
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@ -1,10 +0,0 @@
package me.zinch.Lab7.Client.console;
/**
* Represents a shutdown hook that is executed when the application is stopped.
*/
public class ShutdownHook extends Thread {
public ShutdownHook() {
super(new Thread(Console::stopAppWithSaving));
}
}

11
Lab.Client/src/main/java/me/zinch/Lab7/Client/exceptions/ColorFormatException.java
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@ -1,11 +0,0 @@
package me.zinch.Lab7.Client.exceptions;
public class ColorFormatException extends IllegalArgumentException {
public ColorFormatException() {
super();
}
public ColorFormatException(String message) {
super(message);
}
}

18
Lab.Client/src/main/java/me/zinch/Lab7/Client/exceptions/CommandActionException.java
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@ -1,18 +0,0 @@
package me.zinch.Lab7.Client.exceptions;
/**
* Represents an exception that occurs during the execution of a command action.
*/
public class CommandActionException extends RuntimeException {
public CommandActionException() {
super("Ошибка во время выполнения команды");
}
public CommandActionException(String message) {
super(message);
}
public CommandActionException(Throwable e) {
super(e);
}
}

9
Lab.Client/src/main/java/me/zinch/Lab7/Client/exceptions/ConnectionErrorException.java
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@ -1,9 +0,0 @@
package me.zinch.Lab7.Client.exceptions;
import java.io.IOException;
public class ConnectionErrorException extends IOException {
public ConnectionErrorException() {
super("Произошла ошибка при подключении, сервер не доступен");
}
}

7
Lab.Client/src/main/java/me/zinch/Lab7/Client/exceptions/ResponseException.java
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@ -1,7 +0,0 @@
package me.zinch.Lab7.Client.exceptions;
public class ResponseException extends ClassNotFoundException {
public ResponseException() {
super("Ошибка при обработке данных от сервера.");
}
}

11
Lab.Client/src/main/java/me/zinch/Lab7/Client/exceptions/UnitOfMeasureFormatException.java
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@ -1,11 +0,0 @@
package me.zinch.Lab7.Client.exceptions;
public class UnitOfMeasureFormatException extends IllegalArgumentException {
public UnitOfMeasureFormatException() {
super();
}
public UnitOfMeasureFormatException(String message) {
super(message);
}
}

37
Lab.Domain/pom.xml
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@ -1,37 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>me.zinch</groupId>
<artifactId>Lab7-Domain</artifactId>
<version>1.0</version>
<properties>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.17.1</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>jakarta.validation</groupId>
<artifactId>jakarta.validation-api</artifactId>
<version>3.0.2</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator</artifactId>
<version>8.0.1.Final</version>
<scope>compile</scope>
</dependency>
</dependencies>
</project>

16
Lab.Domain/src/main/java/me/zinch/Lab7/Domain/net/BodyfulMessage.java
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@ -1,16 +0,0 @@
package me.zinch.Lab7.Domain.net;
import java.io.Serializable;
public class BodyfulMessage extends Message {
public BodyfulMessage(MessageType type, String command, Serializable body) {
this.setType(type);
this.setBody(new MessageBody(command, body));
}
public BodyfulMessage(MessageType type, String command, Serializable body, User user) {
this.setType(type);
this.setBody(new MessageBody(command, body));
this.setUser(user);
}
}

18
Lab.Domain/src/main/java/me/zinch/Lab7/Domain/net/BodylessMessage.java
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@ -1,18 +0,0 @@
package me.zinch.Lab7.Domain.net;
public class BodylessMessage extends Message {
public BodylessMessage(MessageType type) {
this.setType(type);
}
public BodylessMessage(MessageType type, String command) {
this.setType(type);
this.setBody(command);
}
public BodylessMessage(MessageType type, String command, User user) {
this.setType(type);
this.setBody(command);
this.setUser(user);
}
}

41
Lab.Domain/src/main/java/me/zinch/Lab7/Domain/net/Message.java
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@ -1,41 +0,0 @@
package me.zinch.Lab7.Domain.net;
import java.io.Serializable;
public abstract class Message implements Serializable {
private MessageType type;
private Serializable body;
private Serializable user;
public final MessageType getType() {
return type;
}
public final void setType(MessageType type) {
this.type = type;
}
public final Object getBody() {
return body;
}
public final void setBody(Serializable body) {
this.body = body;
}
public Serializable getUser() {
return user;
}
public void setUser(Serializable user) {
this.user = user;
}
@Override
public String toString() {
return "Message{" +
"type=" + type +
", body=" + body +
'}';
}
}

29
Lab.Domain/src/main/java/me/zinch/Lab7/Domain/net/MessageBody.java
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@ -1,29 +0,0 @@
package me.zinch.Lab7.Domain.net;
import java.io.Serializable;
public class MessageBody implements Serializable {
private String command;
private Serializable body;
public MessageBody(String command, Serializable body) {
this.command = command;
this.body = body;
}
public String getCommand() {
return command;
}
public void setCommand(String command) {
this.command = command;
}
public Serializable getBody() {
return body;
}
public void setBody(Serializable body) {
this.body = body;
}
}

11
Lab.Domain/src/main/java/me/zinch/Lab7/Domain/net/MessageType.java
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@ -1,11 +0,0 @@
package me.zinch.Lab7.Domain.net;
import java.io.Serializable;
public enum MessageType implements Serializable {
GET,
POST,
ERROR,
OK,
HELLO
}

31
Lab.Domain/src/main/java/me/zinch/Lab7/Domain/net/UpdateBody.java
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@ -1,31 +0,0 @@
package me.zinch.Lab7.Domain.net;
import me.zinch.Lab7.Domain.models.ProductDTO;
import java.io.Serializable;
public class UpdateBody implements Serializable {
private Long id;
private ProductDTO productDTO;
public UpdateBody(Long id, ProductDTO productDTO) {
this.id = id;
this.productDTO = productDTO;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public ProductDTO getProductDTO() {
return productDTO;
}
public void setProductDTO(ProductDTO productDTO) {
this.productDTO = productDTO;
}
}

58
Lab.Domain/src/main/java/me/zinch/Lab7/Domain/net/User.java
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@ -1,58 +0,0 @@
package me.zinch.Lab7.Domain.net;
import jakarta.validation.constraints.NotNull;
import java.io.Serializable;
import java.util.Objects;
public class User implements Serializable {
@NotNull
private String login;
@NotNull
private String password;
public User() {
}
public User(String login, String password) {
this.login = login;
this.password = password;
}
public String getLogin() {
return login;
}
public void setLogin(String login) {
this.login = login;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String toString() {
return "User{" +
"login='" + login + '\'' +
", password='" + password + '\'' +
'}';
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
User user = (User) o;
return Objects.equals(login, user.login) && Objects.equals(password, user.password);
}
@Override
public int hashCode() {
return Objects.hash(login, password);
}
}

106
Lab.Server/pom.xml
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@ -1,106 +0,0 @@
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>me.zinch</groupId>
<artifactId>Lab7-Server</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<name>Lab7-Server</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.target>17</maven.compiler.target>
<maven.compiler.source>17</maven.compiler.source>
</properties>
<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jsr310</artifactId>
<version>2.17.0</version>
</dependency>
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator</artifactId>
<version>8.0.1.Final</version>
</dependency>
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>jakarta.el</artifactId>
<version>5.0.0-M1</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.5.6</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>1.5.6</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>2.0.13</version>
</dependency>
<dependency>
<groupId>me.zinch</groupId>
<artifactId>Lab7-Domain</artifactId>
<version>1.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.17.1</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.jline</groupId>
<artifactId>jline</artifactId>
<version>3.26.1</version>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.7.3</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<groupId>org.apache.maven.plugins</groupId>
<version>3.7.1</version>
<configuration>
<archive>
<manifest>
<mainClass>me.zinch.Lab7.Server.App</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>3.6.3</version>
</plugin>
</plugins>
</build>
</project>

23
Lab.Server/src/main/java/me/zinch/Lab7/Server/App.java
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@ -1,23 +0,0 @@
package me.zinch.Lab7.Server;
import me.zinch.Lab7.Server.console.Console;
import me.zinch.Lab7.Server.exceptions.DbConnectionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
/**
* Main class for running the application.
*/
public class App {
private static final Logger log = LoggerFactory.getLogger(App.class);
public static void main(String[] args) {
try {
Console.run();
} catch (IOException | DbConnectionException e) {
log.error(e.getMessage());
}
}
}

33
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/Add.java
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@ -1,33 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.exceptions.ValidationException;
import me.zinch.Lab7.Domain.models.ProductDTO;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Domain.validator.Validators;
import me.zinch.Lab7.Server.wrapper.IStorage;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import java.sql.SQLException;
import java.util.regex.Pattern;
/**
* The Add class represents a command to add a new element to a collection.
* It extends the Command class.
*/
public class Add extends PostCommand {
public Add() {
super("add {element}", "добавить новый элемент в коллекцию", Pattern.compile("^add"));
}
@Override
public String action(IStorage productCollection, Object object, User user) throws CommandActionException {
var productDTO = (ProductDTO) object;
try {
Validators.validateObject(productDTO).throwIfNotValid();
var product = productCollection.addProduct(productDTO, user);
return String.format("Продукт %s был добавлен под id %d", product.getName(), product.getId());
} catch (ValidationException | SQLException e) {
throw new CommandActionException(String.format("Произошла ошибка при добавлении%n%s", e.getMessage()));
}
}
}

40
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/AddIfMax.java
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@ -1,40 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.exceptions.ValidationException;
import me.zinch.Lab7.Domain.models.ProductDTO;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Domain.validator.Validators;
import me.zinch.Lab7.Server.wrapper.IStorage;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import java.sql.SQLException;
import java.util.regex.Pattern;
/**
* The AddIfMax class represents a command to add a new element to a collection if its price value exceeds the maximum price value in the collection.
* It extends the Command class.
*/
public class AddIfMax extends PostCommand {
public AddIfMax() {
super("add_if_max {element}", "добавить новый элемент в коллекцию, если его значение цены превышает значение наибольшей цены этой коллекции", Pattern.compile("^add_if_max"));
}
@Override
public String action(IStorage productCollection, Object object, User user) throws CommandActionException {
try {
var productDTO = (ProductDTO) object;
try {
Validators.validateObject(productDTO).throwIfNotValid();
if (productCollection.getMaxPrice() == null || productCollection.getMaxPrice() < productDTO.getPrice()) {
var product = productCollection.addProduct(productDTO, user);
return String.format("Продукт %s был добавлен под id %d", product.getName(), product.getId());
}
return "Продукт не подходит под условие";
} catch (ValidationException | SQLException e) {
throw new CommandActionException(e.getMessage());
}
} catch (NumberFormatException e) {
return "Неверный аргумент, id может быть только число";
}
}
}

40
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/AddIfMin.java
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@ -1,40 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.exceptions.ValidationException;
import me.zinch.Lab7.Domain.models.ProductDTO;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Domain.validator.Validators;
import me.zinch.Lab7.Server.wrapper.IStorage;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import java.sql.SQLException;
import java.util.regex.Pattern;
/**
* The AddIfMin class represents a command to add a new element to a collection if its price is lower than the lowest price in the collection.
* It extends the Command class.
*/
public class AddIfMin extends PostCommand {
public AddIfMin() {
super("add_if_min {element}", "добавить новый элемент в коллекцию, если его значение цены меньше, чем у наименьшей цены этой коллекции", Pattern.compile("^add_if_min"));
}
@Override
public String action(IStorage productCollection, Object object, User user) {
try {
var productDTO = (ProductDTO) object;
try {
Validators.validateObject(productDTO).throwIfNotValid();
if (productCollection.getMinPrice() == null || productCollection.getMinPrice() > productDTO.getPrice()) {
var product = productCollection.addProduct(productDTO, user);
return String.format("Продукт %s был добавлен под id %d", product.getName(), product.getId());
}
return "Продукт не подходит под условие";
} catch (ValidationException | SQLException e) {
throw new CommandActionException(e.getMessage());
}
} catch (NumberFormatException e) {
return "Неверный аргумент, id может быть только число";
}
}
}

29
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/CheckProductOwner.java
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@ -1,29 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.db.DbController;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import me.zinch.Lab7.Server.wrapper.DbWrapper;
import me.zinch.Lab7.Server.wrapper.IStorage;
import java.sql.SQLException;
import java.util.regex.Pattern;
public class CheckProductOwner extends PostCommand {
public CheckProductOwner() {
super("check_product_owner", "", Pattern.compile("^check_product_owner .+"));
}
@Override
public String action(IStorage productCollection, Object obj, User user) throws CommandActionException {
try {
var id = (long) obj;
if (DbWrapper.hasAccess(id, user, DbController.getConnection())) return "Это ваш продукт";
throw new CommandActionException("У вас нет прав на изменение данного продукта");
} catch (ClassCastException e) {
throw new CommandActionException(e);
} catch (SQLException e) {
throw new CommandActionException("У вас нет прав на изменение данного продукта");
}
}
}

27
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/Clear.java
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@ -1,27 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import me.zinch.Lab7.Server.wrapper.IStorage;
import java.sql.SQLException;
/**
* The Clear class represents a command to clear a collection.
* It extends the Command class.
*/
public class Clear extends GetCommand {
public Clear() {
super("clear", "очистить коллекцию");
}
@Override
public String action(IStorage productCollection, User user) {
try {
productCollection.clear(user);
return "Были удалены ваши продукты";
} catch (SQLException e) {
throw new CommandActionException("Ошибка при отчистке коллекции");
}
}
}

18
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/Drop.java
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@ -1,18 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import me.zinch.Lab7.Server.wrapper.DbWrapper;
import me.zinch.Lab7.Server.wrapper.IStorage;
public class Drop extends GetCommand{
public Drop() {
super("drop", "Init db");
}
@Override
public String action(IStorage productCollection, User user) throws CommandActionException {
DbWrapper.dropDb();
return "Dropped 💀";
}
}

20
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/Exit.java
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@ -1,20 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.wrapper.IStorage;
import me.zinch.Lab7.Server.console.Console;
/**
* A command to exit the program without saving to a file.
*/
public class Exit extends GetCommand {
public Exit() {
super("exit", "terminate the program");
}
@Override
public String action(IStorage productCollection, User user) {
Console.stopApp();
return "";
}
}

22
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/FilterContainsName.java
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@ -1,22 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.wrapper.IStorage;
import java.util.regex.Pattern;
/**
* A command to filter elements whose 'name' field contains the specified substring.
*/
public class FilterContainsName extends PostCommand {
public FilterContainsName() {
super("filter_contains_name name", "вывести элементы, значение поля name которых содержит заданную подстроку", Pattern.compile("^filter_contains_name .+"));
}
@Override
public String action(IStorage productCollection, Object object, User user) {
String name = object.toString();
var result = productCollection.filterContainsName(name);
return result.isEmpty() ? "Таких элементов не найдено" : result;
}
}

19
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/GetCommand.java
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@ -1,19 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.wrapper.IStorage;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import java.util.regex.Pattern;
public abstract class GetCommand extends Command {
public GetCommand(String name, String description, Pattern pattern) {
super(name, description, pattern);
}
public GetCommand(String name, String description) {
super(name, description);
}
public abstract String action(IStorage productCollection, User user) throws CommandActionException;
}

20
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/GetProduct.java
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@ -1,20 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.wrapper.IStorage;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import java.util.regex.Pattern;
public class GetProduct extends PostCommand {
public GetProduct() {
super("get_product_by_id", "", Pattern.compile("^get_product_by_id +."));
}
@Override
public String action(IStorage productCollection, Object obj, User user) throws CommandActionException {
if (!productCollection.isProductIdExists((Long) obj))
throw new CommandActionException("Продукт с таким ID не существует");
return productCollection.getProductById((Long) obj).toString();
}
}

18
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/Help.java
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@ -1,18 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.wrapper.IStorage;
/**
* A command to display help for available commands.
*/
public class Help extends GetCommand {
public Help() {
super("help", "display help for available commands");
}
@Override
public String action(IStorage productCollection, User user) {
return SystemCommandManager.getRegisteredCommand();
}
}

18
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/Info.java
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@ -1,18 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.wrapper.IStorage;
/**
* A command to display information about the collection (type, initialization date, number of elements, etc.) to the standard output stream.
*/
public class Info extends GetCommand {
public Info() {
super("info", "вывести в стандартный поток вывода информацию о коллекции (тип, дата инициализации, количество элементов и т.д.)");
}
@Override
public String action(IStorage productCollection, User user) {
return productCollection.getInfo();
}
}

26
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/Init.java
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@ -1,26 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.db.DbController;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import me.zinch.Lab7.Server.wrapper.DbInitializer;
import me.zinch.Lab7.Server.wrapper.DbWrapper;
import me.zinch.Lab7.Server.wrapper.IStorage;
import java.sql.SQLException;
public class Init extends GetCommand{
public Init() {
super("init", "Delete all db");
}
@Override
public String action(IStorage productCollection, User user) throws CommandActionException {
try {
DbInitializer.initializeDb(DbController.getConnection());
return "Initialized 😇";
} catch (SQLException e) {
throw new CommandActionException(e);
}
}
}

20
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/IsIdExists.java
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@ -1,20 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.wrapper.IStorage;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import java.util.regex.Pattern;
public class IsIdExists extends PostCommand {
public IsIdExists() {
super("is_id_exists", "", Pattern.compile("^is_id_exists +."));
}
@Override
public String action(IStorage productCollection, Object obj, User user) throws CommandActionException {
if (!productCollection.isProductIdExists((Long) obj))
throw new CommandActionException("Продукт с таким ID не существует");
return "Exists";
}
}

28
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/Login.java
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@ -1,28 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.db.DbController;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import me.zinch.Lab7.Server.utils.SHA256;
import me.zinch.Lab7.Server.wrapper.DbWrapper;
import me.zinch.Lab7.Server.wrapper.IStorage;
import java.sql.SQLException;
public class Login extends UnauthorizedCommand {
public Login() {
super("login", "");
}
@Override
public String action( Object obj) throws CommandActionException {
try {
var loginUser = (User) obj;
if (DbWrapper.isUserExists(loginUser.getLogin(), SHA256.hash(loginUser.getPassword()), DbController.getConnection()))
return "Здравствуйте, " + loginUser.getLogin() + "!";
throw new CommandActionException("Ошибка в логине или пароле");
} catch (SQLException e) {
throw new CommandActionException(e);
}
}
}

19
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/PostCommand.java
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@ -1,19 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.wrapper.IStorage;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import java.util.regex.Pattern;
public abstract class PostCommand extends Command {
public PostCommand(String name, String description, Pattern pattern) {
super(name, description, pattern);
}
public PostCommand(String name, String description) {
super(name, description);
}
public abstract String action(IStorage productCollection, Object obj, User user) throws CommandActionException;
}

19
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/PrintAscending.java
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@ -1,19 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.wrapper.IStorage;
/**
* A command to print the elements of the collection in ascending order.
*/
public class PrintAscending extends GetCommand {
public PrintAscending() {
super("print_ascending", "вывести элементы коллекции в порядке возрастания");
}
@Override
public String action(IStorage productCollection, User user) {
var result = productCollection.toString();
return result.isEmpty() ? "Коллекция пуста" : result;
}
}

19
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/PrintUniqueManufactureCost.java
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@ -1,19 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.wrapper.IStorage;
/**
* A command to print the unique values of the 'manufactureCost' field of all elements in the collection.
*/
public class PrintUniqueManufactureCost extends GetCommand {
public PrintUniqueManufactureCost() {
super("print_unique_manufacture_cost", "вывести уникальные значения поля manufactureCost всех элементов в коллекции");
}
@Override
public String action(IStorage productCollection, User user) {
var result = productCollection.getUniqueManufactureCost();
return result.isEmpty() ? "Коллекция пуста" : result;
}
}

27
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/Register.java
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@ -1,27 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.db.DbController;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import me.zinch.Lab7.Server.utils.SHA256;
import me.zinch.Lab7.Server.wrapper.DbWrapper;
import me.zinch.Lab7.Server.wrapper.IStorage;
import java.sql.SQLException;
public class Register extends UnauthorizedCommand {
public Register() {
super("register", "");
}
public String action(Object obj) throws CommandActionException {
try {
var newUser = (User) obj;
newUser.setPassword(SHA256.hash(newUser.getPassword()));
DbWrapper.createUser(newUser, DbController.getConnection());
return "Пользователь создан";
} catch (ClassCastException | SQLException e) {
throw new CommandActionException("Пользователь уже существует");
}
}
}

33
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/Remove.java
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@ -1,33 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.wrapper.IStorage;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import java.sql.SQLException;
import java.util.regex.Pattern;
/**
* A command to remove an element from the collection by its id.
*/
public class Remove extends PostCommand {
public Remove() {
super("remove_by_id id", "удалить элемент из коллекции по его id", Pattern.compile("^remove_by_id .+"));
}
@Override
public String action(IStorage productCollection, Object object, User user) throws CommandActionException {
try {
Long id = (Long) object;
if (productCollection.isProductIdExists(id)) {
var product = productCollection.removeProduct(id, user);
return String.format("Продукт %s был удалён", product.getName());
}
return "Продукта с таким id не существует";
} catch (NumberFormatException e) {
return "Неверный аргумент, id может быть только число";
} catch (SQLException e) {
throw new CommandActionException(e.getMessage());
}
}
}

30
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/RemoveLower.java
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@ -1,30 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import me.zinch.Lab7.Server.wrapper.IStorage;
import java.sql.SQLException;
import java.util.regex.Pattern;
/**
* A command to remove all elements from the collection that have ids lower than the specified id.
*/
public class RemoveLower extends PostCommand {
public RemoveLower() {
super("remove_lower id", "удалить из коллекции все элементы, меньшие, чем заданный по id", Pattern.compile("^remove_lower .+"));
}
@Override
public String action(IStorage productCollection, Object object, User user) {
try {
Long id = (Long) object;
var size = productCollection.removeLover(id, user);
return String.format("Было удалено %d продуктов", size);
} catch (NumberFormatException e) {
return "Неверный аргумент, id может быть только число";
} catch (SQLException e) {
throw new CommandActionException(e.getMessage());
}
}
}

18
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/Seed.java
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@ -1,18 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import me.zinch.Lab7.Server.wrapper.DbWrapper;
import me.zinch.Lab7.Server.wrapper.IStorage;
public class Seed extends GetCommand{
public Seed() {
super("seed", "Seed data");
}
@Override
public String action(IStorage productCollection, User user) throws CommandActionException {
DbWrapper.seedDb();
return "Seeded 🌿";
}
}

19
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/Show.java
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@ -1,19 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.wrapper.IStorage;
/**
* A command to display all elements of the collection in string representation to the standard output stream.
*/
public class Show extends GetCommand {
public Show() {
super("show", "вывести в стандартный поток вывода все элементы коллекции в строковом представлении");
}
@Override
public String action(IStorage productCollection, User user) {
var result = productCollection.toString();
return result.isEmpty() ? "Коллекция пуста" : result;
}
}

36
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/SystemCommandManager.java
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@ -1,36 +0,0 @@
package me.zinch.Lab7.Server.commands;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
/**
* Manages the registration and retrieval of commands.
*/
public class SystemCommandManager {
private static final List<Command> commandList = new ArrayList<>();
static {
registerCommand(new Exit());
registerCommand(new Drop());
registerCommand(new Init());
registerCommand(new Seed());
registerCommand(new Help());
}
public static void registerCommand(Command command) {
commandList.add(command);
}
public static String getRegisteredCommand() {
return String.join("\n", commandList
.stream()
.map(command -> String.format("%s - %s", command.getName(), command.getDescription()))
.toList());
}
public static Optional<Command> getCommandByInput(String input) {
return commandList.stream().filter(command -> command.checkPattern(input)).findFirst();
}
}

19
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/UnauthorizedCommand.java
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@ -1,19 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import me.zinch.Lab7.Server.wrapper.IStorage;
import java.util.regex.Pattern;
public abstract class UnauthorizedCommand extends Command {
public UnauthorizedCommand(String name, String description, Pattern pattern) {
super(name, description, pattern);
}
public UnauthorizedCommand(String name, String description) {
super(name, description);
}
public abstract String action(Object obj) throws CommandActionException;
}

18
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/UnknownCommand.java
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@ -1,18 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.wrapper.IStorage;
/**
* Represents an unknown command.
*/
public class UnknownCommand extends GetCommand {
public UnknownCommand() {
super("", "");
}
@Override
public String action(IStorage productCollection, User user) {
return "Команда не распознана.";
}
}

44
Lab.Server/src/main/java/me/zinch/Lab7/Server/commands/Update.java
View File

@ -1,44 +0,0 @@
package me.zinch.Lab7.Server.commands;
import me.zinch.Lab7.Domain.net.MessageBody;
import me.zinch.Lab7.Domain.exceptions.ValidationException;
import me.zinch.Lab7.Domain.models.ProductDTO;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Domain.validator.Validators;
import me.zinch.Lab7.Server.wrapper.IStorage;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import java.sql.SQLException;
import java.util.regex.Pattern;
/**
* A command to update the value of an element in the collection, whose id is specified.
*/
public class Update extends PostCommand {
public Update() {
super("update id {element}", "обновить значение элемента коллекции, id которого равен заданному", Pattern.compile("^update .+"));
}
@Override
public String action(IStorage productCollection, Object object, User user) throws CommandActionException {
try {
var body = (MessageBody) object;
var id = Long.parseLong(body.getCommand().split(" ")[1]);
if (productCollection.isProductIdExists(id)) {
var productDTO = (ProductDTO) body.getBody();
try {
Validators.validateObject(productDTO).throwIfNotValid();
var product = productCollection.updateProduct(id, productDTO, user);
return String.format("Продукт %s был изменён", product.getName());
} catch (ValidationException e) {
throw new CommandActionException(e.getMessage());
}
}
return "Продукта с таким id не существует";
} catch (NumberFormatException e) {
return "Неверный аргумент, id может быть только число";
} catch (SQLException e) {
throw new CommandActionException(e.getMessage());
}
}
}

60
Lab.Server/src/main/java/me/zinch/Lab7/Server/configs/ServerConfig.java
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@ -1,60 +0,0 @@
package me.zinch.Lab7.Server.configs;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Properties;
public class ServerConfig {
private static final Logger log = LoggerFactory.getLogger(ServerConfig.class);
private static final Properties properties = new Properties();
static {
var settingsFile = new File("server.properties");
if (settingsFile.isFile() && settingsFile.exists()) {
try {
properties.load(new FileReader(settingsFile));
} catch (IOException e) {
log.error(e.getMessage());
}
} else {
var classLoader = ServerConfig.class.getClassLoader();
try (var inputStream = classLoader.getResourceAsStream("server.properties")) {
properties.load(inputStream);
} catch (IOException e) {
log.error(e.getMessage());
}
}
}
public static int getPort() {
return Integer.parseInt(properties.getProperty("server-port", "3000"));
}
public static String getDbHost() {
return properties.getProperty("db-host", "localhost");
}
public static int getDbPort() {
return Integer.parseInt(properties.getProperty("db-port", "5432"));
}
public static String getDbName() {
return properties.getProperty("db-name", "studs");
}
public static String getDbScheme() {
return properties.getProperty("db-scheme", "s408657");
}
public static String getDbUsername() {
return properties.getProperty("db-username", "postgres");
}
public static String getDbPassword() {
return properties.getProperty("db-password", "postgres");
}
}

92
Lab.Server/src/main/java/me/zinch/Lab7/Server/console/Console.java
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@ -1,92 +0,0 @@
package me.zinch.Lab7.Server.console;
import me.zinch.Lab7.Domain.exceptions.ValidationException;
import me.zinch.Lab7.Server.wrapper.IStorage;
import me.zinch.Lab7.Server.server.ServerBuilder;
import me.zinch.Lab7.Server.commands.GetCommand;
import me.zinch.Lab7.Server.commands.SystemCommandManager;
import me.zinch.Lab7.Server.configs.ServerConfig;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import me.zinch.Lab7.Server.db.DbController;
import me.zinch.Lab7.Server.exceptions.DbConnectionException;
import me.zinch.Lab7.Server.wrapper.DbInitializer;
import me.zinch.Lab7.Server.wrapper.ProductCollection;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.util.NoSuchElementException;
import java.util.Scanner;
/**
* Console class provides methods for interacting with the console, reading user input, and managing application flow.
* This class includes methods for appending input history, stopping the application, reading product DTO from the console, and running the application loop.
*/
public class Console {
private static final Scanner scanner = new Scanner(System.in);
private static final Logger log = LoggerFactory.getLogger(Console.class);
private static boolean isRunning = true;
private static boolean isExitMessageShowed = false;
private static IStorage collection;
public static void stopApp() {
showExitMessage();
isRunning = false;
System.exit(0);
}
public static void showExitMessage() {
if (!isExitMessageShowed) log.info("Have a nice day!");
isExitMessageShowed = true;
}
public static void run() throws IOException, ValidationException, DbConnectionException {
DbController.initConnection();
DbInitializer.initializeDb(DbController.getConnection());
collection = new ProductCollection(DbController.getConnection());
var server = new ServerBuilder()
.setPort(ServerConfig.getPort())
.setCollection(collection)
.build();
Console.handleInput();
server.run();
Runtime.getRuntime().addShutdownHook(new Thread(() -> {
Console.stopApp();
try {
server.stop();
} catch (IOException e) {
throw new RuntimeException(e);
}
}));
}
public static void handleInput() {
new Thread(() -> {
while (isRunning) {
try {
var input = scanner.nextLine().trim();
var command = SystemCommandManager.getCommandByInput(input);
if (command.isPresent()) {
var action = (GetCommand) command.get();
try {
System.out.println(action.action(collection, null));
} catch (CommandActionException e) {
System.out.println(e.getMessage());
}
} else {
System.out.println("This command does not exist. Write help to see a list of available commands.");
}
} catch (NoSuchElementException e) {
stopApp();
}
}
scanner.close();
}).start();
}
}

51
Lab.Server/src/main/java/me/zinch/Lab7/Server/db/DbController.java
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@ -1,51 +0,0 @@
package me.zinch.Lab7.Server.db;
import me.zinch.Lab7.Server.configs.ServerConfig;
import me.zinch.Lab7.Server.exceptions.DbConnectionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
/**
* The DbController class provides methods for loading and saving product data to a database file.
*/
public class DbController {
private static final Logger log = LoggerFactory.getLogger(DbController.class);
private static Connection connection;
public static void initConnection() throws DbConnectionException {
var url = String.format("jdbc:postgresql://%s:%s/%s?currentSchema=%s",
ServerConfig.getDbHost(),
ServerConfig.getDbPort(),
ServerConfig.getDbName(),
ServerConfig.getDbScheme());
var props = new Properties();
props.setProperty("user", ServerConfig.getDbUsername());
props.setProperty("password", ServerConfig.getDbPassword());
try {
connection = DriverManager.getConnection(url, props);
log.info("Connection to the database has been successfully established");
} catch (SQLException e) {
log.error(e.getMessage());
throw new DbConnectionException("Failed to connect to the database");
}
}
public static Connection getConnection() throws DbConnectionException {
if (connection == null) initConnection();
return connection;
}
public static void closeConnection() throws DbConnectionException {
try {
connection.close();
} catch (SQLException e) {
log.error(e.getMessage());
throw new DbConnectionException("Failed to close the connection to the database");
}
}
}

17
Lab.Server/src/main/java/me/zinch/Lab7/Server/exceptions/DbConnectionException.java
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@ -1,17 +0,0 @@
package me.zinch.Lab7.Server.exceptions;
import java.io.IOException;
import java.sql.SQLException;
/**
* Represents an exception that occurs when the database initialization fails.
*/
public class DbConnectionException extends SQLException {
public DbConnectionException() {
super("Failed to connect to the database");
}
public DbConnectionException(String message) {
super(message);
}
}

17
Lab.Server/src/main/java/me/zinch/Lab7/Server/exceptions/DbExecuteException.java
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@ -1,17 +0,0 @@
package me.zinch.Lab7.Server.exceptions;
import java.sql.SQLException;
public class DbExecuteException extends SQLException {
public DbExecuteException() {
super("Error during sql command execution");
}
public DbExecuteException(String reason) {
super(reason);
}
public DbExecuteException(Throwable cause) {
super(cause);
}
}

18
Lab.Server/src/main/java/me/zinch/Lab7/Server/exceptions/IllegalProductDtoException.java
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@ -1,18 +0,0 @@
package me.zinch.Lab7.Server.exceptions;
/**
* Represents an exception that occurs when an illegal product DTO is encountered during the creation or modification of a product.
*/
public class IllegalProductDtoException extends CommandActionException {
public IllegalProductDtoException() {
super("Ошибка при создании или изменении продукта. Были введены некорректные значения.");
}
public IllegalProductDtoException(String message) {
super(message);
}
public IllegalProductDtoException(Throwable e) {
super(e);
}
}

21
Lab.Server/src/main/java/me/zinch/Lab7/Server/exceptions/NonExistentCommand.java
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@ -1,21 +0,0 @@
package me.zinch.Lab7.Server.exceptions;
import java.io.IOException;
public class NonExistentCommand extends IOException {
public NonExistentCommand() {
super("This command doesn't exist");
}
public NonExistentCommand(String message) {
super(message);
}
public NonExistentCommand(String message, Throwable cause) {
super(message, cause);
}
public NonExistentCommand(Throwable cause) {
super(cause);
}
}

21
Lab.Server/src/main/java/me/zinch/Lab7/Server/exceptions/UnauthorizedException.java
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@ -1,21 +0,0 @@
package me.zinch.Lab7.Server.exceptions;
import java.io.IOException;
public class UnauthorizedException extends IOException {
public UnauthorizedException() {
super("Error during user validation");
}
public UnauthorizedException(String message) {
super(message);
}
public UnauthorizedException(String message, Throwable cause) {
super(message, cause);
}
public UnauthorizedException(Throwable cause) {
super(cause);
}
}

36
Lab.Server/src/main/java/me/zinch/Lab7/Server/files/FileReader.java
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@ -1,36 +0,0 @@
package me.zinch.Lab7.Server.files;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
public class FileReader {
private static final Logger log = LoggerFactory.getLogger(FileReader.class);
public static String readFromInputStream(InputStream inputStream) {
StringBuilder resultStringBuilder = new StringBuilder();
try (BufferedReader br = new BufferedReader(new InputStreamReader(inputStream))) {
String line;
while ((line = br.readLine()) != null) {
resultStringBuilder.append(line).append("\n");
}
} catch (IOException e) {
log.error(e.getMessage());
return "";
}
return resultStringBuilder.toString();
}
public static String readFromResource(String fileName) throws FileNotFoundException {
try (var inputStream = FileReader.class.getClassLoader().getResourceAsStream(fileName)) {
return readFromInputStream(inputStream);
} catch (IOException e) {
throw new FileNotFoundException();
}
}
}

182
Lab.Server/src/main/java/me/zinch/Lab7/Server/server/Server.java
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@ -1,182 +0,0 @@
package me.zinch.Lab7.Server.server;
import me.zinch.Lab7.Domain.net.BodylessMessage;
import me.zinch.Lab7.Domain.net.Message;
import me.zinch.Lab7.Domain.net.MessageBody;
import me.zinch.Lab7.Domain.net.MessageType;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.commands.UnauthorizedCommand;
import me.zinch.Lab7.Server.db.DbController;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import me.zinch.Lab7.Server.exceptions.DbExecuteException;
import me.zinch.Lab7.Server.exceptions.NonExistentCommand;
import me.zinch.Lab7.Server.exceptions.UnauthorizedException;
import me.zinch.Lab7.Server.utils.SHA256;
import me.zinch.Lab7.Server.wrapper.AuthGuard;
import me.zinch.Lab7.Server.wrapper.IStorage;
import me.zinch.Lab7.Server.commands.CommandManager;
import me.zinch.Lab7.Server.commands.GetCommand;
import me.zinch.Lab7.Server.commands.PostCommand;
import me.zinch.Lab7.Server.wrapper.ProductCollection;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class Server {
private static final Logger log = LoggerFactory.getLogger(Server.class);
private final ServerSocket serverSocket;
private final IStorage storage;
private boolean isRunning;
private final ExecutorService requestReadPool = Executors.newCachedThreadPool();
private final ExecutorService requestProcessPool = Executors.newCachedThreadPool();
private final ExecutorService responseSendPool = Executors.newFixedThreadPool(12);
public Server(int port, IStorage collection) throws IOException {
serverSocket = new ServerSocket(port);
isRunning = true;
storage = collection;
log.info("The server has been assigned to port {}", port);
}
public static byte[] serialize(Serializable obj) throws IOException {
try (var bOut = new ByteArrayOutputStream();
var oOut = new ObjectOutputStream(bOut)) {
oOut.writeObject(obj);
oOut.flush();
return bOut.toByteArray();
}
}
public void run() {
log.info("The server is running");
while (isRunning) {
try {
var clientSocket = serverSocket.accept();
log.info("Received connection from {}", clientSocket.getRemoteSocketAddress());
requestReadPool.execute(() -> {
try {
handleClient(clientSocket);
} catch (IOException | ClassNotFoundException e) {
log.error(e.getMessage(), e);
}
});
} catch (IOException e) {
log.error(e.getMessage(), e);
}
}
}
private void handleClient(Socket clientSocket) throws IOException, ClassNotFoundException {
var inputStream = clientSocket.getInputStream();
var buffer = new byte[8192];
inputStream.read(buffer);
var oIn = new ObjectInputStream(new ByteArrayInputStream(buffer));
var msg = (Message) oIn.readObject();
log.info("Received message {} from {}", msg, clientSocket.getRemoteSocketAddress());
responseSendPool.execute(() -> handleWrite(clientSocket, msg, inputStream));
}
private void handleWrite(Socket clientSocket, Message msg, InputStream inputStream) {
try {
var response = requestProcessPool.submit(() -> createResponse(msg));
var responseBuffer = response.get();
if (responseBuffer != null) {
try {
var outputStream = clientSocket.getOutputStream();
outputStream.write(responseBuffer);
outputStream.flush();
log.info("Sent message to {}", clientSocket.getRemoteSocketAddress());
outputStream.close();
} catch (IOException e) {
log.error(e.getMessage(), e);
}
}
inputStream.close();
} catch (IOException | InterruptedException | ExecutionException e) {
log.error(e.getMessage(), e);
}
}
private byte[] createResponse(Message message) throws IOException {
if (message.getType() == MessageType.HELLO) return serialize(new BodylessMessage(MessageType.HELLO));
var user = (User) message.getUser();
if (user == null) return handleUnauthorizedCommand(message);
user.setPassword(SHA256.hash(user.getPassword()));
try {
AuthGuard.throwIfUserNotValid(user);
return switch (message.getType()) {
case GET -> handleGetCommand((String) message.getBody(), user);
case POST -> handlePostCommand((MessageBody) message.getBody(), user);
default -> {
log.error("Message type not supported");
yield null;
}
};
} catch (IOException | DbExecuteException | CommandActionException e) {
return serialize(new BodylessMessage(MessageType.ERROR, e.getMessage()));
}
}
private byte[] handleGetCommand(String inputCommand, User user) throws IOException {
var command = CommandManager.getCommandByInput(inputCommand);
if (command.isEmpty()) throw new NonExistentCommand("Такой команды не существует");
var action = (GetCommand) command.get();
return serialize(new BodylessMessage(MessageType.OK, action.action(storage, user)));
}
private byte[] handlePostCommand(MessageBody request, User user) throws IOException {
var inputCommand = request.getCommand();
var body = request.getBody();
var command = CommandManager.getCommandByInput(inputCommand);
if (command.isEmpty()) throw new NonExistentCommand("Такой команды не существует");
var action = (PostCommand) command.get();
return serialize(new BodylessMessage(MessageType.OK, action.action(storage, body, user)));
}
// Only get commands or else exception
private byte[] handleUnauthorizedCommand(Message message) throws IOException {
try {
var messageBody = (MessageBody) message.getBody();
var inputCommand = messageBody.getCommand();
var body = messageBody.getBody();
var command = CommandManager.getCommandByInput(inputCommand);
if (command.isEmpty()) throw new NonExistentCommand("Такой команды не существует");
var action = (UnauthorizedCommand) command.get();
return serialize(new BodylessMessage(MessageType.OK, action.action(body)));
} catch (ClassCastException | NonExistentCommand | CommandActionException e) {
return serialize(new BodylessMessage(MessageType.ERROR, e.getMessage()));
}
}
public void stop() throws IOException {
isRunning = false;
serverSocket.close();
requestReadPool.shutdown();
requestProcessPool.shutdown();
responseSendPool.shutdown();
}
}

57
Lab.Server/src/main/java/me/zinch/Lab7/Server/server/ServerBuilder.java
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@ -1,57 +0,0 @@
package me.zinch.Lab7.Server.server;
import me.zinch.Lab7.Server.wrapper.IStorage;
import me.zinch.Lab7.Server.wrapper.ProductCollection;
import java.io.IOException;
import java.sql.Connection;
import java.util.ArrayList;
import java.util.Set;
public class ServerBuilder {
private static class Config {
private int port = 3000;
private IStorage collection;
public int getPort() {
return port;
}
public void setPort(int port) {
this.port = port;
}
public IStorage getCollection() {
return collection;
}
public void setCollection(IStorage collection) {
this.collection = collection;
}
}
private Config config = new Config();
public ServerBuilder() {
config.setPort(3000);
}
private ServerBuilder(Config config) {
this.config = config;
}
public ServerBuilder setPort(int port) {
if (port < 1 || port > 65535) throw new IllegalArgumentException("Port must be between 1 and 65535");
config.setPort(port);
return new ServerBuilder(config);
}
public ServerBuilder setCollection(IStorage collection) {
config.setCollection(collection);
return new ServerBuilder(config);
}
public Server build() throws IOException {
return new Server(config.getPort(), config.getCollection());
}
}

27
Lab.Server/src/main/java/me/zinch/Lab7/Server/utils/SHA256.java
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@ -1,27 +0,0 @@
package me.zinch.Lab7.Server.utils;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class SHA256 {
public static String hash(String str) {
if (str == null) str = "";
MessageDigest digest;
try {
digest = MessageDigest.getInstance("SHA-256");
} catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e);
}
byte[] encodedhash = digest.digest(str.getBytes(StandardCharsets.UTF_8));
StringBuilder hexString = new StringBuilder(2 * encodedhash.length);
for (byte b : encodedhash) {
String hex = Integer.toHexString(0xff & b);
if (hex.length() == 1) {
hexString.append('0');
}
hexString.append(hex);
}
return hexString.toString();
}
}

19
Lab.Server/src/main/java/me/zinch/Lab7/Server/wrapper/AuthGuard.java
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@ -1,19 +0,0 @@
package me.zinch.Lab7.Server.wrapper;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.db.DbController;
import me.zinch.Lab7.Server.exceptions.CommandActionException;
import me.zinch.Lab7.Server.exceptions.DbExecuteException;
import me.zinch.Lab7.Server.exceptions.UnauthorizedException;
import java.sql.SQLException;
public class AuthGuard {
public static void throwIfUserNotValid(User user) throws UnauthorizedException, DbExecuteException {
try {
if (!DbWrapper.isUserExists(user, DbController.getConnection())) throw new UnauthorizedException("Ошибка при валидации пользователя");
} catch (SQLException e) {
throw new DbExecuteException();
}
}
}

30
Lab.Server/src/main/java/me/zinch/Lab7/Server/wrapper/DbInitializer.java
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@ -1,30 +0,0 @@
package me.zinch.Lab7.Server.wrapper;
import me.zinch.Lab7.Server.exceptions.DbConnectionException;
import me.zinch.Lab7.Server.files.FileReader;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.sql.Connection;
import java.sql.SQLException;
public class DbInitializer {
private static final Logger log = LoggerFactory.getLogger(DbInitializer.class);
public static void initializeDb(Connection connection) throws DbConnectionException {
try (var st = connection.createStatement();
var inputStream = DbInitializer.class.getClassLoader().getResourceAsStream("migrations/init.sql")) {
try {
st.executeQuery("SELECT * FROM db_info WHERE db_info.migration_version >= 1");
log.info("The database already exists");
} catch (SQLException e) {
var initScript = FileReader.readFromInputStream(inputStream);
st.execute(initScript);
log.info("The database has been successfully initialized");
}
} catch (SQLException | IOException e) {
log.error(e.getMessage());
}
}
}

302
Lab.Server/src/main/java/me/zinch/Lab7/Server/wrapper/DbWrapper.java
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@ -1,302 +0,0 @@
package me.zinch.Lab7.Server.wrapper;
import me.zinch.Lab7.Domain.models.Product;
import me.zinch.Lab7.Domain.models.ProductDTO;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.db.DbController;
import me.zinch.Lab7.Server.files.FileReader;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.FileNotFoundException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class DbWrapper {
private static final Logger log = LoggerFactory.getLogger(DbWrapper.class);
public static List<Product> getProducts(Connection connection) throws SQLException, FileNotFoundException {
try (var st = connection.createStatement()) {
var productsResultSet = st.executeQuery(FileReader.readFromResource("migrations/getProducts.sql"));
var products = new ArrayList<Product>();
while (productsResultSet.next()) {
products.add(Mapper.resultStateToProduct(productsResultSet));
}
return products;
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
return new ArrayList<>();
}
}
public static Product getProductByDto(ProductDTO productDTO, Connection connection) {
try {
var createProductStatement = connection.prepareStatement(FileReader.readFromResource("migrations/getProductByDto.sql"));
prepareProductDtoStatement(productDTO, createProductStatement);
createProductStatement.setString(8, productDTO.getOwner().getName());
createProductStatement.setString(9, productDTO.getOwner().getPassportID());
createProductStatement.setInt(10, productDTO.getOwner().getHairColor().ordinal());
createProductStatement.setFloat(11, productDTO.getOwner().getLocation().getX());
createProductStatement.setInt(12, productDTO.getOwner().getLocation().getY());
createProductStatement.setString(13, productDTO.getOwner().getLocation().getName());
var rs = createProductStatement.executeQuery();
if (rs.next())
return Mapper.resultStateToProduct(rs);
return null;
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
return null;
}
}
private static void prepareProductDtoStatement(ProductDTO productDTO, PreparedStatement createProductStatement) throws SQLException {
createProductStatement.setString(1, productDTO.getName());
createProductStatement.setLong(2, productDTO.getCoordinates().getX());
createProductStatement.setLong(3, productDTO.getCoordinates().getY());
createProductStatement.setLong(4, productDTO.getPrice());
createProductStatement.setString(5, productDTO.getPartNumber());
createProductStatement.setLong(6, productDTO.getManufactureCost());
createProductStatement.setInt(7, productDTO.getUnitOfMeasure().ordinal());
}
public static Product getProductById(long id, Connection connection) {
try(var st = connection.prepareStatement(FileReader.readFromResource("migrations/getProductById.sql"))) {
st.setLong(1, id);
var rs = st.executeQuery();
if (rs.next()) {
return Mapper.resultStateToProduct(rs);
}
return null;
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
return null;
}
}
public static Product addProduct(ProductDTO productDTO, Connection connection, User user) throws SQLException {
try {
var createProductStatement = connection.prepareStatement(FileReader.readFromResource("migrations/createProduct.sql"), PreparedStatement.RETURN_GENERATED_KEYS);
prepareProductObjectCreation(productDTO, connection);
createProductStatement.setString(1, productDTO.getName());
createProductStatement.setLong(2, productDTO.getCoordinates().getX());
createProductStatement.setLong(3, productDTO.getCoordinates().getY());
createProductStatement.setTimestamp(4, Timestamp.valueOf(LocalDateTime.now()));
createProductStatement.setLong(5, productDTO.getPrice());
createProductStatement.setString(6, productDTO.getPartNumber());
createProductStatement.setLong(7, productDTO.getManufactureCost());
createProductStatement.setInt(8, productDTO.getUnitOfMeasure().ordinal());
createProductStatement.setString(9, productDTO.getOwner().getPassportID());
createProductStatement.executeUpdate();
var generatedKeys = createProductStatement.getGeneratedKeys();
generatedKeys.next();
var product = getProductById(generatedKeys.getLong(1), connection);
var createProductOwnersStatement = connection.prepareStatement(FileReader.readFromResource("migrations/createProductOwners.sql"));
createProductOwnersStatement.setLong(1, product.getId());
createProductOwnersStatement.setLong(2, getUserId(user, connection));
createProductOwnersStatement.execute();
return product;
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
throw new SQLException(e);
}
}
public static Product updateProduct(long id, ProductDTO productDTO, Connection connection, User user) throws SQLException {
try {
if (!hasAccess(id, user, connection)) throw new SQLException("У вас нет прав на этот продукт");
var updateProductStatement = connection.prepareStatement(FileReader.readFromResource("migrations/updateProduct.sql"));
prepareProductObjectCreation(productDTO, connection);
prepareProductDtoStatement(productDTO, updateProductStatement);
updateProductStatement.setString(8, productDTO.getOwner().getPassportID());
updateProductStatement.setLong(9, id);
updateProductStatement.execute();
return getProductByDto(productDTO, connection);
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
throw new SQLException(e);
}
}
private static void prepareProductObjectCreation(ProductDTO productDTO, Connection connection) throws SQLException, FileNotFoundException {
var updateCoordinateStatement = connection.prepareStatement(FileReader.readFromResource("migrations/createCoordinate.sql"));
var updateLocationStatement = connection.prepareStatement(FileReader.readFromResource("migrations/createLocation.sql"));
var updatePersonStatement = connection.prepareStatement(FileReader.readFromResource("migrations/createPerson.sql"));
updateCoordinateStatement.setLong(1, productDTO.getCoordinates().getX());
updateCoordinateStatement.setLong(2, productDTO.getCoordinates().getY());
try {
updateCoordinateStatement.execute();
} catch (SQLException e) {
log.error(e.getMessage());
}
updateLocationStatement.setFloat(1, productDTO.getOwner().getLocation().getX());
updateLocationStatement.setInt(2, productDTO.getOwner().getLocation().getY());
updateLocationStatement.setString(3, productDTO.getOwner().getLocation().getName());
try {
updateLocationStatement.execute();
} catch (SQLException e) {
log.error(e.getMessage());
}
updatePersonStatement.setString(1, productDTO.getOwner().getName());
updatePersonStatement.setString(2, productDTO.getOwner().getPassportID());
updatePersonStatement.setInt(3, productDTO.getOwner().getHairColor().ordinal());
updatePersonStatement.setFloat(4, productDTO.getOwner().getLocation().getX());
updatePersonStatement.setInt(5, productDTO.getOwner().getLocation().getY());
try {
updatePersonStatement.execute();
} catch (SQLException e) {
log.error(e.getMessage());
}
}
public static boolean removeProductById(long id, Connection connection, User user) throws SQLException {
if (!hasAccess(id, user, connection)) throw new SQLException("У вас нет прав на этот продукт");
try (var st = connection.prepareStatement(FileReader.readFromResource("migrations/deleteProductById.sql"))) {
st.setLong(1, id);
st.setLong(2, id);
return st.executeUpdate() > 0;
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
throw new SQLException(e);
}
}
public static int removeLower(long id, Connection connection, User user) throws SQLException {
try (var st = connection.prepareStatement(FileReader.readFromResource("migrations/deleteLower.sql"))) {
st.setLong(1, getUserId(user, connection));
st.setLong(2, id);
return st.executeUpdate();
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
throw new SQLException(e);
}
}
public static void clearProducts(User user, Connection connection) throws SQLException {
try (var st = connection.prepareStatement(FileReader.readFromResource("migrations/clearProducts.sql"))) {
st.setLong(1, getUserId(user, connection));
st.setLong(2, getUserId(user, connection));
st.executeUpdate();
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
throw new SQLException(e);
}
}
public static boolean isUserExists(User user, Connection connection) throws SQLException {
return isUserExists(user.getLogin(), user.getPassword(), connection);
}
public static boolean isUserExists(String login, String passwordHash, Connection connection) throws SQLException {
try (var st = connection.prepareStatement(FileReader.readFromResource("migrations/isUserExists.sql"))) {
st.setString(1, login);
st.setString(2, passwordHash);
var rs = st.executeQuery();
return rs.next();
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
throw new SQLException(e);
}
}
public static long getUserId(User user, Connection connection) throws SQLException {
return getUserId(user.getLogin(), user.getPassword(), connection);
}
public static long getUserId(String login, String passwordHash, Connection connection) throws SQLException {
try (var st = connection.prepareStatement(FileReader.readFromResource("migrations/isUserExists.sql"))) {
st.setString(1, login);
st.setString(2, passwordHash);
var rs = st.executeQuery();
if (rs.next()) return rs.getLong(1);
throw new SQLException("User not found");
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
throw new SQLException(e);
}
}
public static User createUser(User userRegister, Connection connection) throws SQLException {
try (var st = connection.prepareStatement(FileReader.readFromResource("migrations/createUser.sql"))) {
st.setString(1, userRegister.getLogin());
st.setString(2, userRegister.getPassword());
st.execute();
return new User(userRegister.getLogin(), userRegister.getPassword());
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
throw new SQLException(e);
}
}
public static boolean hasAccess(long productId, User user, Connection connection) throws SQLException {
try (var st = connection.prepareStatement(FileReader.readFromResource("migrations/hasUserAccess.sql"))) {
st.setLong(1, productId);
st.setString(2, user.getLogin());
st.setString(3, user.getPassword());
var rs = st.executeQuery();
return rs.next();
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
throw new SQLException("У вас нет прав на изменение данного продукта");
}
}
public static void dropDb() {
try (var st = DbController.getConnection().prepareStatement(FileReader.readFromResource("migrations/drop.sql"))) {
st.execute();
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
}
}
public static void seedDb() {
try (var st = DbController.getConnection().prepareStatement(FileReader.readFromResource("migrations/seed.sql"))) {
st.execute();
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
}
}
public static Map<Long, String> getProductsOwners(Connection connection) throws SQLException {
try (var st = connection.prepareStatement(FileReader.readFromResource("migrations/getProductsOwners.sql"))) {
var productsOwners = new HashMap<Long, String>();
var rs = st.executeQuery();
while (rs.next()) {
productsOwners.put(rs.getLong(1), rs.getString(2));
}
return productsOwners;
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
throw new SQLException(e);
}
}
}

37
Lab.Server/src/main/java/me/zinch/Lab7/Server/wrapper/IStorage.java
View File

@ -1,37 +0,0 @@
package me.zinch.Lab7.Server.wrapper;
import me.zinch.Lab7.Domain.models.Product;
import me.zinch.Lab7.Domain.models.ProductDTO;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.exceptions.DbConnectionException;
import java.sql.SQLException;
import java.util.List;
public interface IStorage {
public Product getProductById(Long id);
public Product addProduct(ProductDTO productDTO, User user) throws SQLException;
public Product updateProduct(Long id, ProductDTO productDTO, User user) throws SQLException;
public Product removeProduct(Long id, User user) throws SQLException;
public String getInfo();
public void clear(User user) throws SQLException;
public Long getMaxPrice();
public Long getMinPrice();
public boolean isProductIdExists(Long id);
public Integer removeLover(Long id, User user) throws SQLException;
public String filterContainsName(String name);
public String getUniqueManufactureCost();
public List<Product> toList();
}

44
Lab.Server/src/main/java/me/zinch/Lab7/Server/wrapper/Mapper.java
View File

@ -1,44 +0,0 @@
package me.zinch.Lab7.Server.wrapper;
import me.zinch.Lab7.Domain.models.Color;
import me.zinch.Lab7.Domain.models.Coordinates;
import me.zinch.Lab7.Domain.models.Location;
import me.zinch.Lab7.Domain.models.Person;
import me.zinch.Lab7.Domain.models.Product;
import me.zinch.Lab7.Domain.models.ProductDTO;
import me.zinch.Lab7.Domain.models.UnitOfMeasure;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
public class Mapper {
public static Product resultStateToProduct(ResultSet resultSet) throws SQLException {
var productDto = new ProductDTO();
var coordinates = new Coordinates();
var person = new Person();
var location = new Location();
productDto.setName(resultSet.getString(2));
coordinates.setX(resultSet.getLong(3));
coordinates.setY(resultSet.getLong(4));
productDto.setPrice(resultSet.getLong(6));
productDto.setPartNumber(resultSet.getString(7));
productDto.setManufactureCost(resultSet.getLong(8));
productDto.setUnitOfMeasure(UnitOfMeasure.create(resultSet.getInt(9)));
person.setName(resultSet.getString(10));
person.setPassportID(resultSet.getString(11));
person.setHairColor(Color.create(resultSet.getInt(12)));
location.setX(resultSet.getLong(13));
location.setY(resultSet.getInt(14));
location.setName(resultSet.getString(15));
person.setLocation(location);
productDto.setOwner(person);
productDto.setCoordinates(coordinates);
var id = resultSet.getLong(1);
var date = ZonedDateTime.parse(String.join("T", resultSet.getString(5).split(" ")), DateTimeFormatter.ISO_OFFSET_DATE_TIME);
return productDto.buildProduct(id, date);
}
}

249
Lab.Server/src/main/java/me/zinch/Lab7/Server/wrapper/ProductCollection.java
View File

@ -1,249 +0,0 @@
package me.zinch.Lab7.Server.wrapper;
import me.zinch.Lab7.Domain.models.Product;
import me.zinch.Lab7.Domain.models.ProductDTO;
import me.zinch.Lab7.Domain.net.User;
import me.zinch.Lab7.Server.db.DbController;
import me.zinch.Lab7.Server.exceptions.DbConnectionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.FileNotFoundException;
import java.sql.Connection;
import java.sql.SQLException;
import java.time.Instant;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.locks.Lock;
public class ProductCollection implements IStorage {
private static final Logger log = LoggerFactory.getLogger(ProductCollection.class);
private final TreeSet<Product> productList;
private final Map<Long, String> productsOwners;
private final Lock lock = new ReentrantLock();
private List<Product> fetchProducts(Connection connection) {
try {
return DbWrapper.getProducts(connection);
} catch (SQLException | FileNotFoundException e) {
log.error(e.getMessage());
return new ArrayList<>();
}
}
private Map<Long, String> fetchProductsOwners(Connection connection) {
try {
return DbWrapper.getProductsOwners(connection);
} catch (SQLException e) {
log.error(e.getMessage());
return new HashMap<>();
}
}
private void fetchDb() throws DbConnectionException {
productList.clear();
productList.addAll(fetchProducts(DbController.getConnection()));
productsOwners.clear();
productsOwners.putAll(fetchProductsOwners(DbController.getConnection()));
}
public ProductCollection(Connection connection) {
productList = new TreeSet<>((o1, o2) -> {
var o1Length = Math.sqrt(o1.getCoordinates().getX() * o1.getCoordinates().getX() + o1.getCoordinates().getY() * o1.getCoordinates().getY());
var o2Length = Math.sqrt(o2.getCoordinates().getX() * o2.getCoordinates().getX() + o2.getCoordinates().getY() * o2.getCoordinates().getY());
return Math.toIntExact((long) (o1Length - o2Length));
});
productsOwners = new HashMap<>();
productList.addAll(fetchProducts(connection));
productsOwners.putAll(fetchProductsOwners(connection));
}
public Product getProductById(Long id) {
lock.lock();
try {
Optional<Product> product = productList.stream().filter(i -> Objects.equals(i.getId(), id)).findFirst();
return product.orElse(null);
} finally {
lock.unlock();
}
}
public Product addProduct(ProductDTO productDTO, User user) throws SQLException {
lock.lock();
try {
var product = DbWrapper.addProduct(productDTO, DbController.getConnection(), user);
productList.add(product);
productsOwners.put(product.getId(), user.getLogin());
return product;
} finally {
lock.unlock();
}
}
public Product updateProduct(Long id, ProductDTO productDTO, User user) throws SQLException {
lock.lock();
try {
var product = DbWrapper.updateProduct(id, productDTO, DbController.getConnection(), user);
fetchDb();
return productDTO.buildProduct(product.getId(), product.getCreationDate());
} finally {
lock.unlock();
}
}
public Product removeProduct(Long id, User user) throws SQLException {
lock.lock();
try {
var product = getProductById(id);
if (DbWrapper.removeProductById(id, DbController.getConnection(), user)) {
productList.remove(product);
productsOwners.remove(product.getId());
return product;
}
return null;
} finally {
lock.unlock();
}
}
public String getInfo() {
lock.lock();
try {
var optionalInitDate = productList.stream().map(Product::getCreationDate).sorted().findFirst();
ZonedDateTime initDate = optionalInitDate.orElse(ZonedDateTime.ofInstant(Instant.EPOCH, ZoneId.systemDefault()));
return String.format("Структура: TreeSet%nДата инициализации: %s%nКоличество элементов: %s", initDate, productList.size());
} finally {
lock.unlock();
}
}
public void clear(User user) throws SQLException {
lock.lock();
try {
DbWrapper.clearProducts(user, DbController.getConnection());
fetchDb();
} finally {
lock.unlock();
}
}
public Long getMaxPrice() {
lock.lock();
try {
return productList.stream().max(Comparator.comparingLong(Product::getPrice)).map(Product::getPrice).orElse(null);
} finally {
lock.unlock();
}
}
public Long getMinPrice() {
lock.lock();
try {
return productList.stream().min(Comparator.comparingLong(Product::getPrice)).map(Product::getPrice).orElse(null);
} finally {
lock.unlock();
}
}
public boolean isProductIdExists(Long id) {
lock.lock();
try {
return getProductById(id) != null;
} finally {
lock.unlock();
}
}
public Integer removeLover(Long id, User user) throws SQLException {
lock.lock();
try {
var size = productList.size();
DbWrapper.removeLower(id, DbController.getConnection(), user);
fetchDb();
return size - productList.size();
} finally {
lock.unlock();
}
}
public String filterContainsName(String name) {
lock.lock();
try {
return String.join("\n", productList.stream()
.filter(product -> product.getName().toLowerCase().contains(name.toLowerCase()))
.map(Product::toString)
.toList());
} finally {
lock.unlock();
}
}
public String getUniqueManufactureCost() {
lock.lock();
try {
return String.join(", ", Set.copyOf(productList.stream()
.map(Product::getManufactureCost)
.toList())
.stream()
.map(Object::toString)
.toList());
} finally {
lock.unlock();
}
}
public List<Product> toList() {
lock.lock();
try {
return productList.stream().toList();
} finally {
lock.unlock();
}
}
@Override
public String toString() {
lock.lock();
try {
return String.join("\n", productList.stream()
.map(product -> String.format("%s by %s", product.toString(), productsOwners.getOrDefault(product.getId(), "Unknown")))
.toList());
} finally {
lock.unlock();
}
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ProductCollection that = (ProductCollection) o;
lock.lock();
try {
return Objects.equals(productList, that.productList);
} finally {
lock.unlock();
}
}
@Override
public int hashCode() {
lock.lock();
try {
return Objects.hashCode(productList);
} finally {
lock.unlock();
}
}
}

11
Lab.Server/src/main/resources/logback.xml
View File

@ -1,11 +0,0 @@
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
</encoder>
</appender>
<root level="info">
<appender-ref ref="STDOUT"/>
</root>
</configuration>

8
Lab.Server/src/main/resources/migrations/clearProducts.sql
View File

@ -1,8 +0,0 @@
DELETE FROM products
WHERE id IN (
SELECT product FROM products_owners
WHERE "user" = ?
);
DELETE FROM products_owners WHERE "user" = ?;

1
Lab.Server/src/main/resources/migrations/createCoordinate.sql
View File

@ -1 +0,0 @@
INSERT INTO coordinates(x, y) VALUES (?, ?);

1
Lab.Server/src/main/resources/migrations/createLocation.sql
View File

@ -1 +0,0 @@
INSERT INTO locations(x, y, name) VALUES (?, ?, ?);

2
Lab.Server/src/main/resources/migrations/createPerson.sql
View File

@ -1,2 +0,0 @@
INSERT INTO persons(name, passport_id, color, location_x, location_y)
VALUES (?, ?, ?, ?, ?);

2
Lab.Server/src/main/resources/migrations/createProduct.sql
View File

@ -1,2 +0,0 @@
INSERT INTO products( name, coordinate_x, coordinate_y, creation_date, price, part_number, manufacture_cost, unit_of_measure, person)
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?);

1
Lab.Server/src/main/resources/migrations/createProductOwners.sql
View File

@ -1 +0,0 @@
INSERT INTO products_owners(product, "user") VALUES (?, ?);

2
Lab.Server/src/main/resources/migrations/createUser.sql
View File

@ -1,2 +0,0 @@
INSERT INTO users(login, password)
VALUES (?, ?);

6
Lab.Server/src/main/resources/migrations/deleteLower.sql
View File

@ -1,6 +0,0 @@
DELETE
FROM products
WHERE id IN (SELECT product
FROM products_owners
WHERE "user" = ?
AND id < ?);

2
Lab.Server/src/main/resources/migrations/deleteProductById.sql
View File

@ -1,2 +0,0 @@
DELETE FROM products_owners WHERE product = ?;
DELETE FROM products WHERE id = ?;

7
Lab.Server/src/main/resources/migrations/drop.sql
View File

@ -1,7 +0,0 @@
DROP TABLE IF EXISTS coordinates CASCADE;
DROP TABLE IF EXISTS users CASCADE;
DROP TABLE IF EXISTS locations CASCADE;
DROP TABLE IF EXISTS db_info CASCADE;
DROP TABLE IF EXISTS persons CASCADE;
DROP TABLE IF EXISTS products_owners CASCADE;
DROP TABLE IF EXISTS products CASCADE;

31
Lab.Server/src/main/resources/migrations/getProductByDto.sql
View File

@ -1,31 +0,0 @@
SELECT id,
products.name,
coordinate_x,
coordinate_y,
creation_date,
price,
part_number,
manufacture_cost,
unit_of_measure,
persons.name,
persons.passport_id,
persons.color,
locations.x,
locations.y,
locations.name
FROM products
LEFT JOIN persons ON person = persons.passport_id
LEFT JOIN locations on persons.location_x = locations.x and persons.location_y = locations.y
WHERE products.name = ?
AND coordinate_x = ?
AND coordinate_y = ?
AND price = ?
AND part_number = ?
AND manufacture_cost = ?
AND unit_of_measure = ?
AND persons.name = ?
AND persons.passport_id = ?
AND persons.color = ?
AND locations.x = ?
AND locations.y = ?
AND locations.name = ?;

19
Lab.Server/src/main/resources/migrations/getProductById.sql
View File

@ -1,19 +0,0 @@
SELECT id,
products.name,
coordinate_x,
coordinate_y,
creation_date,
price,
part_number,
manufacture_cost,
unit_of_measure,
persons.name,
persons.passport_id,
persons.color,
locations.x,
locations.y,
locations.name
FROM products
LEFT JOIN persons ON person = persons.passport_id
LEFT JOIN locations on persons.location_x = locations.x and persons.location_y = locations.y
WHERE id = ?;

18
Lab.Server/src/main/resources/migrations/getProducts.sql
View File

@ -1,18 +0,0 @@
SELECT id,
products.name,
coordinate_x,
coordinate_y,
creation_date,
price,
part_number,
manufacture_cost,
unit_of_measure,
persons.name,
persons.passport_id,
persons.color,
locations.x,
locations.y,
locations.name
FROM products
LEFT JOIN persons ON person = persons.passport_id
LEFT JOIN locations on persons.location_x = locations.x and persons.location_y = locations.y;

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