Example usage for java.util.zip ZipOutputStream write

List of usage examples for java.util.zip ZipOutputStream write

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Introduction

In this page you can find the example usage for java.util.zip ZipOutputStream write.

Prototype

public synchronized void write(byte[] b, int off, int len) throws IOException

Source Link

Document

Writes an array of bytes to the current ZIP entry data.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    FileInputStream inStream = new FileInputStream("test.txt");
    ZipOutputStream outStream = new ZipOutputStream(new FileOutputStream("compressed.zip"));

    outStream.putNextEntry(new ZipEntry("test.txt"));

    byte[] buffer = new byte[1024];
    int bytesRead;

    while ((bytesRead = inStream.read(buffer)) > 0) {
        outStream.write(buffer, 0, bytesRead);
    }//  w w  w  .  j a  v  a 2  s.  c om

    outStream.closeEntry();
    outStream.close();
    inStream.close();
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String[] filenames = new String[] { "filename1", "filename2" };
    byte[] buf = new byte[1024];
    String outFilename = "outfile.zip";
    ZipOutputStream out = new ZipOutputStream(new FileOutputStream(outFilename));

    for (int i = 0; i < filenames.length; i++) {
        FileInputStream in = new FileInputStream(filenames[i]);
        out.putNextEntry(new ZipEntry(filenames[i]));
        int len;/*from w ww.j ava2s.  c  o  m*/
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
        out.closeEntry();
        in.close();
    }
    out.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    CheckedOutputStream checksum = new CheckedOutputStream(new FileOutputStream("data.zip"), new Adler32());
    ZipOutputStream zos = new ZipOutputStream(new BufferedOutputStream(checksum));

    int size = 0;
    byte[] buffer = new byte[1024];

    File dir = new File(".");
    String[] files = dir.list();//from ww  w.j a v a2 s  . c o  m

    for (int i = 0; i < files.length; i++) {
        System.out.println("Compressing: " + files[i]);
        FileInputStream fis = new FileInputStream(files[i]);
        ZipEntry zipEntry = new ZipEntry(files[i]);
        zos.putNextEntry(zipEntry);

        while ((size = fis.read(buffer, 0, buffer.length)) > 0) {
            zos.write(buffer, 0, size);
        }
        zos.closeEntry();
        fis.close();
    }
    zos.close();
    System.out.println("Checksum   : " + checksum.getChecksum().getValue());
}

From source file:com.alexoree.jenkins.Main.java

public static void main(String[] args) throws Exception {
    // create Options object
    Options options = new Options();

    options.addOption("t", false, "throttle the downloads, waits 5 seconds in between each d/l");

    // automatically generate the help statement
    HelpFormatter formatter = new HelpFormatter();
    formatter.printHelp("jenkins-sync", options);

    CommandLineParser parser = new DefaultParser();
    CommandLine cmd = parser.parse(options, args);
    boolean throttle = cmd.hasOption("t");

    String plugins = "https://updates.jenkins-ci.org/latest/";
    List<String> ps = new ArrayList<String>();
    Document doc = Jsoup.connect(plugins).get();
    for (Element file : doc.select("td a")) {
        //System.out.println(file.attr("href"));
        if (file.attr("href").endsWith(".hpi") || file.attr("href").endsWith(".war")) {
            ps.add(file.attr("href"));
        }/*from  ww  w. j  a v  a2s .  co  m*/
    }

    File root = new File(".");
    //https://updates.jenkins-ci.org/latest/AdaptivePlugin.hpi
    new File("./latest").mkdirs();

    //output zip file
    String zipFile = "jenkinsSync.zip";
    // create byte buffer
    byte[] buffer = new byte[1024];
    FileOutputStream fos = new FileOutputStream(zipFile);
    ZipOutputStream zos = new ZipOutputStream(fos);

    //download the plugins
    for (int i = 0; i < ps.size(); i++) {
        System.out.println("[" + i + "/" + ps.size() + "] downloading " + plugins + ps.get(i));
        String outputFile = download(root.getAbsolutePath() + "/latest/" + ps.get(i), plugins + ps.get(i));

        FileInputStream fis = new FileInputStream(outputFile);
        // begin writing a new ZIP entry, positions the stream to the start of the entry data
        zos.putNextEntry(new ZipEntry(outputFile.replace(root.getAbsolutePath(), "")
                .replace("updates.jenkins-ci.org/", "").replace("https:/", "")));
        int length;
        while ((length = fis.read(buffer)) > 0) {
            zos.write(buffer, 0, length);
        }
        zos.closeEntry();
        fis.close();
        if (throttle)
            Thread.sleep(WAIT);
        new File(root.getAbsolutePath() + "/latest/" + ps.get(i)).deleteOnExit();
    }

    //download the json metadata
    plugins = "https://updates.jenkins-ci.org/";
    ps = new ArrayList<String>();
    doc = Jsoup.connect(plugins).get();
    for (Element file : doc.select("td a")) {
        //System.out.println(file.attr("href"));
        if (file.attr("href").endsWith(".json")) {
            ps.add(file.attr("href"));
        }
    }
    for (int i = 0; i < ps.size(); i++) {
        download(root.getAbsolutePath() + "/" + ps.get(i), plugins + ps.get(i));

        FileInputStream fis = new FileInputStream(root.getAbsolutePath() + "/" + ps.get(i));
        // begin writing a new ZIP entry, positions the stream to the start of the entry data
        zos.putNextEntry(new ZipEntry(plugins + ps.get(i)));
        int length;
        while ((length = fis.read(buffer)) > 0) {
            zos.write(buffer, 0, length);
        }
        zos.closeEntry();
        fis.close();
        new File(root.getAbsolutePath() + "/" + ps.get(i)).deleteOnExit();
        if (throttle)
            Thread.sleep(WAIT);
    }

    // close the ZipOutputStream
    zos.close();
}

From source file:Main.java

public static byte[] compressZip(byte bytes[]) throws IOException {
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    ZipOutputStream zipos = new ZipOutputStream(os);
    zipos.putNextEntry(new ZipEntry("ZIP"));
    zipos.write(bytes, 0, bytes.length);
    zipos.close();//from   w  ww.  j  av a 2 s .  c  o m
    return os.toByteArray();
}

From source file:org.exist.util.Compressor.java

/**
 * The method <code>compress</code>
 *
 * @param whatToCompress a <code>byte[]</code> value
 * @param length an <code>int</code> value
 * @return a <code>byte[]</code> value
 * @exception IOException if an error occurs
 *///  w  w w . ja  v  a 2  s  . co  m
public static byte[] compress(byte[] whatToCompress, int length) throws IOException {
    final ByteArrayOutputStream baos = new ByteArrayOutputStream();
    final ZipOutputStream gzos = new ZipOutputStream(baos);
    gzos.setMethod(ZipOutputStream.DEFLATED);
    gzos.putNextEntry(new ZipEntry(length + ""));
    gzos.write(whatToCompress, 0, length);
    gzos.closeEntry();
    gzos.finish();
    gzos.close();
    return baos.toByteArray();
}

From source file:co.cask.hydrator.transforms.Compressor.java

public static byte[] compressZIP(byte[] input) throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    ZipOutputStream zip = new ZipOutputStream(out);
    zip.write(input, 0, input.length);
    zip.close();/*from   w w w.  j  av  a2 s  .  c  o  m*/
    return out.toByteArray();
}

From source file:com.ibm.watson.developer_cloud.retrieve_and_rank.v1.util.ZipUtils.java

private static void writeZipEntry(ZipOutputStream out, String name, byte[] data) throws IOException {
    final ZipEntry entry = new ZipEntry(StringUtils.removeStart(name, "/"));
    out.putNextEntry(entry);/*from ww w  .j  av  a 2  s. c  o m*/
    out.write(data, 0, data.length);
    out.closeEntry();
}

From source file:Main.java

public static void addEntryContent(ZipOutputStream zos, String entryFileName)
        throws IOException, FileNotFoundException {
    BufferedInputStream bis = new BufferedInputStream(new FileInputStream(entryFileName));

    byte[] buffer = new byte[1024];
    int count = -1;
    while ((count = bis.read(buffer)) != -1) {
        zos.write(buffer, 0, count);
    }/*from w  w w  . j ava  2s.c  o  m*/
    bis.close();
}

From source file:Main.java

public static void compressFile(File file, File fileCompressed) throws IOException {

    byte[] buffer = new byte[SIZE_OF_BUFFER];
    ZipOutputStream zipOutputStream = new ZipOutputStream(new FileOutputStream(fileCompressed));
    FileInputStream fileInputStream = new FileInputStream(file);
    zipOutputStream.putNextEntry(new ZipEntry(file.getPath()));

    int size;//from  w  ww  .j a v a2 s.  co m
    while ((size = fileInputStream.read(buffer)) > 0)
        zipOutputStream.write(buffer, 0, size);

    zipOutputStream.closeEntry();
    fileInputStream.close();
    zipOutputStream.close();
}