Example usage for java.util.zip ZipInputStream ZipInputStream

Introduction

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

Prototype

public ZipInputStream(InputStream in)

Source Link

Document

Creates a new ZIP input stream.

Usage

From source file:Main.java

public static void unCompress(String zipPath, String toPath) throws IOException {
    File zipfile = new File(zipPath);
    if (!zipfile.exists())
        return;/*from w  ww  . j  a  v a 2 s . co  m*/

    if (!toPath.endsWith("/"))
        toPath += "/";

    File destFile = new File(toPath);
    if (!destFile.exists())
        destFile.mkdirs();

    ZipInputStream zis = new ZipInputStream(new FileInputStream(zipfile));
    ZipEntry entry = null;

    try {

        while ((entry = zis.getNextEntry()) != null) {
            if (entry.isDirectory()) {
                File file = new File(toPath + entry.getName() + "/");
                file.mkdirs();
            } else {
                File file = new File(toPath + entry.getName());
                if (!file.getParentFile().exists())
                    file.getParentFile().mkdirs();

                FileOutputStream fos = null;

                try {
                    fos = new FileOutputStream(file);
                    byte buf[] = new byte[1024];
                    int len = -1;
                    while ((len = zis.read(buf, 0, 1024)) != -1) {
                        fos.write(buf, 0, len);
                    }
                } finally {

                    if (fos != null) {
                        try {
                            fos.close();
                        } catch (Exception e) {
                        }
                    }
                }
            }
        }

    } finally {
        zis.close();
    }

}

From source file:Main.java

public static void unzip(InputStream is, String dir) throws IOException {
    File dest = new File(dir);
    if (!dest.exists()) {
        dest.mkdirs();/*from  w  w w. j a v  a 2  s  .co  m*/
    }

    if (!dest.isDirectory())
        throw new IOException("Invalid Unzip destination " + dest);
    if (null == is) {
        throw new IOException("InputStream is null");
    }

    ZipInputStream zip = new ZipInputStream(is);

    ZipEntry ze;
    while ((ze = zip.getNextEntry()) != null) {
        final String path = dest.getAbsolutePath() + File.separator + ze.getName();

        String zeName = ze.getName();
        char cTail = zeName.charAt(zeName.length() - 1);
        if (cTail == File.separatorChar) {
            File file = new File(path);
            if (!file.exists()) {
                if (!file.mkdirs()) {
                    throw new IOException("Unable to create folder " + file);
                }
            }
            continue;
        }

        FileOutputStream fout = new FileOutputStream(path);
        byte[] bytes = new byte[1024];
        int c;
        while ((c = zip.read(bytes)) != -1) {
            fout.write(bytes, 0, c);
        }
        zip.closeEntry();
        fout.close();
    }
}

From source file:Main.java

public static void unZip(String path) {
    int count = -1;
    int index = -1;

    String savepath = "";

    savepath = path.substring(0, path.lastIndexOf("."));
    try {// w  ww .j a  va2 s  .  c  o  m
        BufferedOutputStream bos = null;
        ZipEntry entry = null;
        FileInputStream fis = new FileInputStream(path);
        ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));

        while ((entry = zis.getNextEntry()) != null) {
            byte data[] = new byte[buffer];

            String temp = entry.getName();
            index = temp.lastIndexOf("/");
            if (index > -1)
                temp = temp.substring(index + 1);
            String tempDir = savepath + "/zip/";
            File dir = new File(tempDir);
            dir.mkdirs();
            temp = tempDir + temp;
            File f = new File(temp);
            f.createNewFile();

            FileOutputStream fos = new FileOutputStream(f);
            bos = new BufferedOutputStream(fos, buffer);

            while ((count = zis.read(data, 0, buffer)) != -1) {
                bos.write(data, 0, count);
            }

            bos.flush();
            bos.close();
        }

        zis.close();

    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:Main.java

/**
 * Decompresses a given byte array that is a compressed folder.
 * /*from w w w . ja v  a2s .  co m*/
 * @param folderAsCompressedArray to decompress
 * @param unzippedLocation where the decompressed folder should be
 * @throws IOException e
 * @throws FileNotFoundException e
 */
public static void decompressFolderByteArray(byte[] folderAsCompressedArray, File unzippedLocation)
        throws IOException, FileNotFoundException {
    ZipInputStream zipFile = new ZipInputStream(new ByteArrayInputStream(folderAsCompressedArray));
    ZipEntry ze = null;
    final int minusOne = -1;
    while ((ze = zipFile.getNextEntry()) != null) {
        FileOutputStream fout = new FileOutputStream(
                new File(unzippedLocation, ze.getName()).getAbsolutePath());
        for (int c = zipFile.read(); c != minusOne; c = zipFile.read()) {
            fout.write(c);
        }
        zipFile.closeEntry();
        fout.close();
    }
    zipFile.close();
}

From source file:Main.java

public static void unzip(final InputStream input, final File destFolder) {
    try {//  w  w  w.  j a va  2s . c  o m
        byte[] buffer = new byte[4096];
        int read;
        ZipInputStream is = new ZipInputStream(input);
        ZipEntry entry;
        while ((entry = is.getNextEntry()) != null) {
            if (!entry.isDirectory()) {
                String fileName = entry.getName();
                File fileFolder = destFolder;
                int lastSep = entry.getName().lastIndexOf(File.separatorChar);
                if (lastSep != -1) {
                    String dirPath = fileName.substring(0, lastSep);
                    fileFolder = new File(fileFolder, dirPath);
                    fileName = fileName.substring(lastSep + 1);
                }
                fileFolder.mkdirs();
                File file = new File(fileFolder, fileName);
                FileOutputStream os = new FileOutputStream(file);
                while ((read = is.read(buffer)) != -1) {
                    os.write(buffer, 0, read);
                }
                os.flush();
                os.close();
            }
        }
        is.close();
    } catch (Exception ex) {
        throw new RuntimeException("Cannot unzip stream to " + destFolder.getAbsolutePath(), ex);
    }
}

From source file:Main.java

private static List<String> extractClassNames(String path) throws IOException, NoSuchMethodException,
        SecurityException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
    addToClassPath(path);/*from  ww  w .  j  ava2  s .  c  o m*/
    List<String> classNames = new ArrayList<String>();
    ZipInputStream zipStream = new ZipInputStream(new FileInputStream(path));
    try {
        for (ZipEntry entry = zipStream.getNextEntry(); entry != null; entry = zipStream.getNextEntry()) {
            if (!entry.isDirectory() && entry.getName().endsWith(".class")) {
                String className = entry.getName().replace('/', '.');
                classNames.add(className.substring(0, className.length() - ".class".length()));
            }
        }
        return classNames;
    } finally {
        zipStream.close();
    }
}

From source file:Main.java

/**
 * /*from www .j  a  va  2  s.c  o  m*/
 * @param zipFile
 *            zip file
 * @param folderName
 *            folder to load
 * @return list of entry in the folder
 * @throws ZipException
 * @throws IOException
 */
public static List<ZipEntry> loadFiles(File zipFile, String folderName) throws ZipException, IOException {
    Log.d("loadFiles", folderName);
    long start = System.currentTimeMillis();
    FileInputStream fis = new FileInputStream(zipFile);
    BufferedInputStream bis = new BufferedInputStream(fis);
    ZipInputStream zis = new ZipInputStream(bis);

    ZipEntry zipEntry = null;
    List<ZipEntry> list = new LinkedList<ZipEntry>();
    String folderLowerCase = folderName.toLowerCase();
    int counter = 0;
    while ((zipEntry = zis.getNextEntry()) != null) {
        counter++;
        String zipEntryName = zipEntry.getName();
        Log.d("loadFiles.zipEntry.getName()", zipEntryName);
        if (zipEntryName.toLowerCase().startsWith(folderLowerCase) && !zipEntry.isDirectory()) {
            list.add(zipEntry);
        }
    }
    Log.d("Loaded 1", counter + " files, took: " + (System.currentTimeMillis() - start) + " milliseconds.");
    zis.close();
    bis.close();
    fis.close();
    return list;
}

From source file:Main.java

public static void unZip(String zipFile, String outputFolder) throws IOException {

    byte[] buffer = new byte[1024];

    //create output directory is not exists
    File folder = new File(outputFolder);
    if (!folder.exists()) {
        folder.mkdir();/*from www . ja  v  a2s. c  om*/
    }

    //get the zip file content
    ZipInputStream zis = new ZipInputStream(new FileInputStream(zipFile));
    //get the zipped file list entry
    ZipEntry ze = zis.getNextEntry();

    while (ze != null) {

        String fileName = ze.getName();
        File newFile = new File(outputFolder + File.separator + fileName);

        //create all non exists folders
        //else you will hit FileNotFoundException for compressed folder
        if (ze.isDirectory())
            newFile.mkdirs();
        else {
            newFile.getParentFile().mkdirs();

            FileOutputStream fos = new FileOutputStream(newFile);

            int len;
            while ((len = zis.read(buffer)) > 0) {
                fos.write(buffer, 0, len);
            }

            fos.close();
        }
        ze = zis.getNextEntry();
    }

    zis.closeEntry();
    zis.close();

}

From source file:Main.java

public static void unZip(InputStream zipFileIS, String outputFolder) throws IOException {

    byte[] buffer = new byte[1024];

    //create output directory is not exists
    File folder = new File(outputFolder);
    if (!folder.exists()) {
        folder.mkdir();//from  w  ww  .  j  a v a 2s  .c o m
    }

    //get the zip file content
    ZipInputStream zis = new ZipInputStream(zipFileIS);
    //get the zipped file list entry
    ZipEntry ze = zis.getNextEntry();

    while (ze != null) {

        String fileName = ze.getName();
        File newFile = new File(outputFolder + File.separator + fileName);

        if (ze.isDirectory()) {
            newFile.mkdirs();
        } else {

            FileOutputStream fos = new FileOutputStream(newFile);

            int len;
            while ((len = zis.read(buffer)) > 0) {
                fos.write(buffer, 0, len);
            }

            fos.flush();
            fos.close();
        }
        ze = zis.getNextEntry();
    }

    zis.closeEntry();
    zis.close();
}

From source file:Main.java

public static void Unzip(String dir, byte[] data) throws Exception {
    ByteArrayInputStream input = new ByteArrayInputStream(data);
    ZipInputStream zipIn = new ZipInputStream(input);
    ZipEntry entry;/*from   w  ww  .j  a va2 s .co  m*/
    while ((entry = zipIn.getNextEntry()) != null) {
        String outpath = dir + entry.getName();
        FileOutputStream output = null;
        try {
            File f = new File(outpath);
            f.getParentFile().mkdirs();

            output = new FileOutputStream(f);
            int len = 0;
            byte[] buffer = new byte[4096];
            while ((len = zipIn.read(buffer)) > 0) {
                output.write(buffer, 0, len);
            }
        } finally {
            if (output != null)
                output.close();
        }
    }

    zipIn.close();
}