ZipFileManager.java

package com.javarush.task.task31.task3110;

import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipFileManager {
    private Path zipFile;

    public ZipFileManager(Path zipFile) {
        this.zipFile = zipFile;
    }

    public void createZip(Path source) throws Exception{
        try (ZipOutputStream zipOutputStream = new ZipOutputStream(Files.newOutputStream(zipFile));
             InputStream inputStream = Files.newInputStream(source))
        {
            ZipEntry zipEntry = new ZipEntry(source.toAbsolutePath().getFileName().toString());
            zipOutputStream.putNextEntry(zipEntry);
            while (inputStream.available() > 0){
                byte[] cache = new byte[1024];
                int length = inputStream.read(cache, 0, cache.length);
                zipOutputStream.write(cache, 0, length);
            }
            zipOutputStream.closeEntry();
        }
    }
}