src/main/java/service/GameService.java - master - Shcod/java-core-IO_Serialization_ZipStream

src/main/java/service/GameService.java
135 строк5 KB
Shcod
first commit
08 авг 2026, 05:56
08 авг 2026, 05:5679fe5e1
package service;

import game.GameProgress;

import java.io.*;
import java.time.LocalDateTime;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;

public class GameService {
    private StringBuilder log = new StringBuilder();
    private String ROOT = "D:\\JavaGame";

    public void createFolder(String path) {
        File folder = new File(ROOT, path);
        writeLog(log, folder, folder.mkdir(), State.SAVE);
    }

    public void createFile(String path) {
        File file = new File(ROOT, path);
        try {
            writeLog(log, file, file.createNewFile(), State.SAVE);
        } catch (IOException e) {
            log.append("ERROR - ".concat(LocalDateTime.now().toString()).concat("ошибка установки").concat(file.getAbsolutePath()));
            throw new RuntimeException(e);
        }
    }

    public void writeLogFile(String title) {
        try (FileWriter writer = new FileWriter(ROOT + "\\temp\\temp.txt", true)) {
            writer.append("\n--------------------------------");
            writer.append(title);
            writer.append("--------------------------------");
            writer.append("\n\n");
            writer.write(String.valueOf(log));
            log = new StringBuilder();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    public void saveGame(String path, GameProgress progress) {
        path = ROOT + path;
        try (FileOutputStream fos = new FileOutputStream(path); ObjectOutputStream ous = new ObjectOutputStream(fos)) {
            ous.writeObject(progress);
            log.append("INFO ")
                    .append(LocalDateTime.now())
                    .append(" файл ").append(path)
                    .append(" сохранен.\n");
        } catch (IOException e) {
            log.append("ERROR ").append(LocalDateTime.now()).append(" ").append(e.getMessage());
            throw new RuntimeException(e);
        }
    }

    public void zipFiles(String path, List<String> files) {
        path = ROOT + path;
        try (ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(path))) {
            for(int i = 0; i < files.size(); i++) {
                try(FileInputStream fis = new FileInputStream(files.get(i))) {
                    ZipEntry entry = new ZipEntry("zip" + i + ".dat");
                    zos.putNextEntry(entry);
                    zos.write(fis.readAllBytes());
                    zos.closeEntry();
                    zos.flush();
                    log.append("INFO ").append(LocalDateTime.now())
                            .append(" файл ").append(files.get(i))
                            .append(" добавлен в архив. ")
                            .append(path)
                            .append("\n");
                }
            }
            for(String s : files) {
                deleteFile(s);
            }
        } catch (IOException e) {
            log.append("ERROR ").append(LocalDateTime.now()).append(" ").append(e.getMessage());
            throw new RuntimeException(e);
        }

    }
    public void openZip(String archivePath, String unzipPath) {
        try (ZipInputStream zis = new ZipInputStream(new FileInputStream(archivePath))) {
            ZipEntry entry;
            String name;
            while ((entry = zis.getNextEntry()) != null) {
                name = entry.getName();
                try (FileOutputStream fos = new FileOutputStream(unzipPath + "\\" + name)) {
                    fos.write(zis.readAllBytes());
                    fos.flush();
                    zis.closeEntry();
                    log.append("INFO ").append(LocalDateTime.now())
                            .append(" файл ").append(name).append(" извлечен из архива\n");
                }
            }
        } catch (IOException e) {
            log.append("ERROR ").append(LocalDateTime.now()).append(" ").append(e.getMessage());
            throw new RuntimeException(e);
        }

    }

    public GameProgress openProgress(String path) {
        try(ObjectInputStream ois = new ObjectInputStream(new FileInputStream(path))) {
            return (GameProgress) ois.readObject();
        } catch (ClassNotFoundException | IOException e) {
            log.append("ERROR ").append(LocalDateTime.now()).append(" ").append(e.getMessage());
            throw new RuntimeException(e);
        }
    }

    private void deleteFile(String path) {
        File file = new File(path);
        writeLog(log, file, file.delete(), State.DELETE);
    }


    private void writeLog(StringBuilder log, File file, boolean flag, State state) {
        String choice;
        switch (state) {
            case State.SAVE -> choice = flag ? " создан" : " не создан";
            case State.DELETE -> choice = flag ? " удалён" : " не удалён";
            default -> throw new IllegalStateException("Unexpected value: " + state);
        }
        log
                .append(flag ? "INFO " : "WARNING ")
                .append(LocalDateTime.now())
                .append(file.isFile() ? " файл " : " папка ")
                .append(file.getAbsolutePath())
                .append(choice)
                .append("\n");
    }
}