ZipFileManager

public class ZipFileManager {

    private Path zipFile;

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

    public void createZip(Path source) throws Exception{
        if (!Files.exists(zipFile.getParent())){
            Files.createDirectories(zipFile.getParent());
        }

        try (ZipOutputStream zipOutputStream = new ZipOutputStream(Files.newOutputStream(zipFile))) {
            if (Files.isRegularFile(source)) {
                addNewZipEntry(zipOutputStream, source.getParent(), source.getFileName());
            }
            else if (Files.isDirectory(source)){
                FileManager fileManager = new FileManager(source);
                List<Path> fileNames = fileManager.getFileList();
                for (Path path : fileNames){
                    addNewZipEntry(zipOutputStream, path.getParent(), path);
                }
            }
            else {
                throw new PathNotFoundException();
            }
            /*ZipEntry zipEntry = new ZipEntry(source.getFileName().toString());
            zipOutputStream.putNextEntry(zipEntry);

            try (InputStream inputStream = Files.newInputStream(source)) {

                while (inputStream.available() > 0) {
                    zipOutputStream.write(inputStream.read());
                }
            }*/
        }
    }

    private void addNewZipEntry(ZipOutputStream zipOutputStream, Path filePath, Path fileName) throws Exception{
        try(InputStream inputStream = Files.newInputStream(filePath.resolve(fileName))) {
            ZipEntry zipEntry = new ZipEntry(fileName.toString());
            zipOutputStream.putNextEntry(zipEntry);

            copyData(inputStream, zipOutputStream);
            /*while (inputStream.available() > 0) {
                zipOutputStream.write(inputStream.read());
            }*/
            zipOutputStream.closeEntry();
        }
    }

    private void copyData(InputStream in, OutputStream out) throws Exception{
        while (in.available() > 0){
            out.write(in.read());
        }
    }
}