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:Utils.java

/**
 * unpack a segment from a zip/*w ww .  j  a v a 2  s .c  o m*/
 * 
 * @param addsi
 * @param packetStream
 * @param version
 */
public static void unpack(InputStream source, File destination) throws IOException {
    ZipInputStream zin = new ZipInputStream(source);
    ZipEntry zipEntry = null;
    FileOutputStream fout = null;

    byte[] buffer = new byte[4096];
    while ((zipEntry = zin.getNextEntry()) != null) {

        long ts = zipEntry.getTime();
        // the zip entry needs to be a full path from the
        // searchIndexDirectory... hence this is correct

        File f = new File(destination, zipEntry.getName());

        f.getParentFile().mkdirs();

        fout = new FileOutputStream(f);
        int len;
        while ((len = zin.read(buffer)) > 0) {
            fout.write(buffer, 0, len);
        }
        zin.closeEntry();
        fout.close();
        f.setLastModified(ts);
    }
    fout.close();
}

From source file:Main.java

public static void unzip(File zipFile, File targetDirectory) throws IOException {
    ZipInputStream zis = new ZipInputStream(new BufferedInputStream(new FileInputStream(zipFile)));
    try {/*from  w w w.j  a  v a2 s.c  o  m*/
        ZipEntry ze;
        int count;
        byte[] buffer = new byte[8192];
        while ((ze = zis.getNextEntry()) != null) {
            File file = new File(targetDirectory, ze.getName());
            File dir = ze.isDirectory() ? file : file.getParentFile();
            if (!dir.isDirectory() && !dir.mkdirs())
                throw new FileNotFoundException("Failed to ensure directory: " + dir.getAbsolutePath());
            if (ze.isDirectory())
                continue;
            FileOutputStream fout = new FileOutputStream(file);
            try {
                while ((count = zis.read(buffer)) != -1)
                    fout.write(buffer, 0, count);
            } finally {
                fout.close();
            }
        }
    } finally {
        zis.close();
    }
}

From source file:Main.java

public static void unzip(InputStream fin, String targetPath, Context context) throws IOException {
    ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fin));
    try {//w  w  w  . java 2 s. c  o m
        ZipEntry zipEntry;
        int count;
        byte[] buffer = new byte[8192];
        while ((zipEntry = zis.getNextEntry()) != null) {
            File file = new File(targetPath, zipEntry.getName());
            File dir = zipEntry.isDirectory() ? file : file.getParentFile();
            if (!dir.isDirectory() && !dir.mkdirs()) {
                throw new FileNotFoundException("Failed to get directory: " + dir.getAbsolutePath());
            }
            if (zipEntry.isDirectory()) {
                continue;
            }
            FileOutputStream fout = new FileOutputStream(file);
            try {
                while ((count = zis.read(buffer)) != -1)
                    fout.write(buffer, 0, count);
            } finally {
                fout.close();
            }
            Log.d("TEST", "Unzipped " + file.getAbsolutePath());
        }
    } finally {
        zis.close();
    }
}

From source file:Main.java

public static void readZipFile(String file) throws Exception {
    ZipFile zf = new ZipFile(file);
    InputStream in = new BufferedInputStream(new FileInputStream(file));
    ZipInputStream zin = new ZipInputStream(in);
    ZipEntry ze;/*from w  w  w .  j av a2s .  c om*/
    while ((ze = zin.getNextEntry()) != null) {
        if (ze.isDirectory()) {
        } else {
            System.err.println("file - " + ze.getName() + " : " + ze.getSize() + " bytes");
            long size = ze.getSize();
            if (size > 0) {
                BufferedReader br = new BufferedReader(new InputStreamReader(zf.getInputStream(ze)));
                String line;
                while ((line = br.readLine()) != null) {
                    System.out.println(line);
                }
                br.close();
            }
            System.out.println();
        }
    }
    zin.closeEntry();
}

From source file:Main.java

public static void unzip(String zipFileName, String unzipdir) {
    try (ZipInputStream zis = new ZipInputStream(new BufferedInputStream(new FileInputStream(zipFileName)))) {

        ZipEntry entry = null;//from ww w  .  j  a  va2s.  c o  m
        while ((entry = zis.getNextEntry()) != null) {
            // Extract teh entry's contents 
            extractEntryContent(zis, entry, unzipdir);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

/***
 * Extract zipfile to outdir with complete directory structure
 * disclaimer, I didn't wrote that ...//from w w w  . j  av a2s.  co m
 * @param zipfile Input .zip file
 * @param outdir Output directory
 */
public static void extract(File zipfile, File outdir) {
    // todo: replace with more trustful method
    try {
        ZipInputStream zin = new ZipInputStream(new FileInputStream(zipfile));
        ZipEntry entry;
        String name, dir;
        while ((entry = zin.getNextEntry()) != null) {
            name = entry.getName();
            if (entry.isDirectory()) {
                mkdirs(outdir, name);
                continue;
            }
            dir = dirpart(name);
            if (dir != null) {
                mkdirs(outdir, dir);
            }
            extractFile(zin, outdir, name);
        }
        zin.close();
    } catch (IOException err) {
        throw new RuntimeException("Unable to extract quiz", err);
    }
}

From source file:Main.java

public static void unZip(String zipFile, String outputFolder) {
    byte[] buffer = new byte[BUFFER_SIZE];

    try {/*  w  w  w . java2 s.  c o  m*/
        File folder = new File(outputFolder);
        if (!folder.exists()) {
            folder.mkdir();
        }

        ZipInputStream zis = new ZipInputStream(new FileInputStream(zipFile));
        ZipEntry ze = zis.getNextEntry();

        while (ze != null) {
            String fileName = ze.getName();
            File newFile = new File(outputFolder + File.separator + fileName);

            System.out.println("file unzip : " + newFile.getAbsoluteFile());
            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.close();
            }
            ze = zis.getNextEntry();
        }
        zis.closeEntry();
        zis.close();
        System.out.println("Done");
    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

From source file:Main.java

/**
 * kudos: http://www.jondev.net/articles/Unzipping_Files_with_Android_(Programmatically)
 * @param zipFile/*from www.  ja  v a  2 s  . c  o m*/
 * @param destinationDirectory
 */
public static void unZip(String zipFile, String destinationDirectory) {
    try {
        FileInputStream fin = new FileInputStream(zipFile);
        ZipInputStream zin = new ZipInputStream(fin);
        ZipEntry ze = null;
        while ((ze = zin.getNextEntry()) != null) {
            Log.v("Decompress", "Unzipping " + ze.getName());
            String destinationPath = destinationDirectory + File.separator + ze.getName();
            if (ze.isDirectory()) {
                dirChecker(destinationPath);
            } else {
                FileOutputStream fout;
                try {
                    File outputFile = new File(destinationPath);
                    if (!outputFile.getParentFile().exists()) {
                        dirChecker(outputFile.getParentFile().getPath());
                    }
                    fout = new FileOutputStream(destinationPath);
                    for (int c = zin.read(); c != -1; c = zin.read()) {
                        fout.write(c);
                    }
                    zin.closeEntry();
                    fout.close();
                } catch (Exception e) {
                    // ok for now.
                    Log.v("Decompress", "Error: " + e.getMessage());
                }
            }
        }
        zin.close();
    } catch (Exception e) {
        Log.e("Decompress", "unzip", e);
    }
}

From source file:Main.java

/***
 * Extract zipfile to outdir with complete directory structure
 * @param zipfile Input .zip file/* w w w  .j  ava2s  .  c  om*/
 * @param outdir Output directory
 */
public static void extract(InputStream zipfile, File outdir) {
    try {
        ZipInputStream zin = new ZipInputStream(zipfile);
        ZipEntry entry;
        String name, dir;
        Log.i("OF", "uncompressinggggg ");
        while ((entry = zin.getNextEntry()) != null) {
            name = entry.getName();
            if (entry.isDirectory()) {
                mkdirs(outdir, name);
                continue;
            }
            dir = dirpart(name);
            if (dir != null)
                mkdirs(outdir, dir);

            extractFile(zin, outdir, name);
        }
        zin.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

/***
 * Extract zipfile to outdir with complete directory structure
 * @param zipfile Input .zip file//  w  w  w . jav  a  2 s.co m
 * @param outdir Output directory
 */
public static void extract(InputStream zipfile, File outdir) {
    try {
        ZipInputStream zin = new ZipInputStream(zipfile);
        ZipEntry entry;
        String name, dir;
        Log.i("OF", "uncompressinggggg ");
        while ((entry = zin.getNextEntry()) != null) {
            name = entry.getName();
            if (entry.isDirectory()) {
                mkdirs(outdir, name);
                continue;
            }
            /* this part is necessary because file entry can come before
             * directory entry where is file located
             * i.e.:
             *   /foo/foo.txt
             *   /foo/
             */
            dir = dirpart(name);
            if (dir != null)
                mkdirs(outdir, dir);

            extractFile(zin, outdir, name);
        }
        zin.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}