File compression and decompression, File compression and decompression

File compression and decompression, File compression and decompression

// File compression and decompression
Public class GzipUtils {

public static void zip(String sourcePath, String outPath) throws Exception {    zip(new File(sourcePath), new File(outPath));}public static void zip(File source, File out) throws Exception {    zip(new FileInputStream(source), new FileOutputStream(out));}public static void zip(InputStream is, OutputStream os) throws Exception {    GZIPOutputStream gos = null;    try {        gos = new GZIPOutputStream(os);        int len;        byte[] buffer = new byte[1024];        while ((len = is.read(buffer)) != -1) {            gos.write(buffer, 0, len);        }    } finally {        StreamUtils.closeStream(gos);        StreamUtils.closeStream(os);        StreamUtils.closeStream(is);    }}public static void unZip(String zipPath, String unzipPath)        throws Exception {    unZip(new File(zipPath), new File(unzipPath));}public static void unZip(File zipFile, File unzipFile) throws Exception {    unZip(new FileInputStream(zipFile), new FileOutputStream(unzipFile));}public static void unZip(InputStream is, OutputStream os) throws Exception {    GZIPInputStream gis = null;    try {        gis = new GZIPInputStream(is);        int len;        byte[] buffer = new byte[1024];        while ((len = gis.read(buffer)) != -1) {            os.write(buffer, 0, len);        }    } finally {        StreamUtils.closeStream(os);        StreamUtils.closeStream(gis);        StreamUtils.closeStream(is);    }}