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 byte[] readBytesFormZipFile(String fileName, String fname) {
    byte[] bytes = null;
    ByteArrayOutputStream os = null;
    ZipInputStream in = null;//from  ww  w.  j  ava 2  s . c  om
    try {
        os = new ByteArrayOutputStream(4096);
        in = new ZipInputStream(new FileInputStream(fileName));
        boolean found = false;
        while (!found) {
            ZipEntry entry = in.getNextEntry();
            if (fname.equalsIgnoreCase(entry.getName())) {
                found = true;
            }
        }
        int read;
        byte[] buffer = new byte[4096];
        while ((read = in.read(buffer)) >= 0) {
            os.write(buffer, 0, read);
        }
        bytes = os.toByteArray();
    } catch (Exception e) {
        bytes = null;
    } finally {
        try {
            if (os != null) {
                os.flush();
                os = null;
            }
            if (in != null) {
                in.close();
                in = null;
            }
        } catch (Exception e) {
        }
    }

    return bytes;
}

---

From source file:Main.java

private static File unzip(Context context, InputStream in) throws IOException {
    File tmpDb = null;/* ww  w . ja  v a 2  s  .co  m*/
    int dbFiles = 0;
    try {
        tmpDb = File.createTempFile("import", ".db");

        ZipInputStream zin = new ZipInputStream(in);
        ZipEntry sourceEntry;
        while (true) {

            sourceEntry = zin.getNextEntry();

            if (sourceEntry == null) {
                break;
            }

            if (sourceEntry.isDirectory()) {
                zin.closeEntry();
                continue;
            }

            FileOutputStream fOut;
            if (sourceEntry.getName().endsWith(".db")) {
                // Write database to tmp file
                fOut = new FileOutputStream(tmpDb);
                dbFiles++;
            } else {
                // Write all other files(images) to files dir in apps data
                int start = sourceEntry.getName().lastIndexOf("/") + 1;
                String name = sourceEntry.getName().substring(start);
                fOut = context.openFileOutput(name, Context.MODE_PRIVATE);
            }

            final OutputStream targetStream = fOut;
            try {
                int read;
                while (true) {
                    byte[] buffer = new byte[1024];
                    read = zin.read(buffer);
                    if (read == -1) {
                        break;
                    }
                    targetStream.write(buffer, 0, read);
                }
                targetStream.flush();
            } finally {
                safeCloseClosable(targetStream);
            }
            zin.closeEntry();
        }
    } finally {
        safeCloseClosable(in);
    }
    if (dbFiles != 1) {
        throw new IllegalStateException("Input file is not a valid backup");
    }
    return tmpDb;
}

---

From source file:Main.java

public static String unzip(String filename) throws IOException {
    BufferedOutputStream origin = null;
    String path = null;//www.  j a  va  2  s .c  om
    Integer BUFFER_SIZE = 20480;
    if (android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED)) {

        File flockedFilesFolder = new File(
                Environment.getExternalStorageDirectory() + File.separator + "FlockLoad");
        System.out.println("FlockedFileDir: " + flockedFilesFolder);
        String compressedFile = flockedFilesFolder.toString() + "/" + filename;
        System.out.println("compressed File name:" + compressedFile);
        //String uncompressedFile = flockedFilesFolder.toString()+"/"+"flockUnZip";
        File purgeFile = new File(compressedFile);

        try {
            ZipInputStream zin = new ZipInputStream(new FileInputStream(compressedFile));
            BufferedInputStream bis = new BufferedInputStream(zin);
            try {
                ZipEntry ze = null;
                while ((ze = zin.getNextEntry()) != null) {
                    byte data[] = new byte[BUFFER_SIZE];
                    path = flockedFilesFolder.toString() + "/" + ze.getName();
                    System.out.println("path is:" + path);
                    if (ze.isDirectory()) {
                        File unzipFile = new File(path);
                        if (!unzipFile.isDirectory()) {
                            unzipFile.mkdirs();
                        }
                    } else {
                        FileOutputStream fout = new FileOutputStream(path, false);
                        origin = new BufferedOutputStream(fout, BUFFER_SIZE);
                        try {
                            /* for (int c = bis.read(data, 0, BUFFER_SIZE); c != -1; c = bis.read(data)) {
                            origin.write(c);
                             }
                             */
                            int count;
                            while ((count = bis.read(data, 0, BUFFER_SIZE)) != -1) {
                                origin.write(data, 0, count);
                            }
                            zin.closeEntry();
                        } finally {
                            origin.close();
                            fout.close();

                        }
                    }
                }
            } finally {
                bis.close();
                zin.close();
                purgeFile.delete();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return path;
    }
    return null;
}

---

From source file:Main.java

private static void loadICUData(Context context, File destDir) throws IOException {
    OutputStream out = null;//from  ww  w . j  av  a 2  s.co  m
    ZipInputStream in = null;
    File icuDir = new File(destDir, "icu");
    File icuDataFile = new File(icuDir, "icudt53l.dat");
    try {
        if (!icuDir.exists())
            icuDir.mkdirs();
        if (!icuDataFile.exists()) {
            in = new ZipInputStream(context.getAssets().open("icudt53l.zip"));
            in.getNextEntry();
            out = new FileOutputStream(icuDataFile);
            byte[] buf = new byte[1024];
            int len;
            while ((len = in.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
        }
    } catch (IOException e) {
        if (icuDataFile.exists())
            icuDataFile.delete();
        throw e;
    } finally {
        if (in != null)
            in.close();
        if (out != null) {
            out.flush();
            out.close();
        }
    }
}

---

From source file:localization.split.java

public static Vector<String> readzipfile(String filepath) {
    Vector<String> v = new Vector<String>();
    byte[] buffer = new byte[1024];
    String outputFolder = filepath.substring(0, filepath.lastIndexOf("."));
    System.out.println(outputFolder);
    try {/* www  .ja v a2  s  .  c om*/
        File folder = new File(outputFolder);
        if (!folder.exists()) {
            folder.mkdir();
        }
        ZipInputStream zis = new ZipInputStream(new FileInputStream(filepath));
        ZipEntry ze = zis.getNextEntry();
        while (ze != null) {
            String fileName = ze.getName();
            File newFile = new File(outputFolder + "\\" + fileName);
            v.addElement(newFile.getAbsolutePath());
            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();
    } catch (Exception e) {

    }
    return v;
}

---

From source file:com.wisemapping.util.ZipUtils.java

public static byte[] zipToBytes(byte[] zip) throws IOException {

    byte[] result = null;
    if (zip != null) {
        final ByteArrayInputStream in = new ByteArrayInputStream(zip);
        final ZipInputStream zipIn = new ZipInputStream(in);
        zipIn.getNextEntry();/*from w  ww . j a  v a 2 s. c  om*/
        result = IOUtils.toByteArray(zipIn);

        zipIn.closeEntry();
        zipIn.close();
    }

    return result;
}

---

From source file:cd.education.data.collector.android.utilities.ZipUtils.java

public static void unzip(File[] zipFiles) {
    for (File zipFile : zipFiles) {
        ZipInputStream zipInputStream = null;
        try {//w w  w . ja v a  2s .co  m
            zipInputStream = new ZipInputStream(new FileInputStream(zipFile));
            ZipEntry zipEntry;
            while ((zipEntry = zipInputStream.getNextEntry()) != null) {
                doExtractInTheSameFolder(zipFile, zipInputStream, zipEntry);
            }
        } catch (Exception e) {
            Log.e(t, e.getMessage(), e);
        } finally {
            IOUtils.closeQuietly(zipInputStream);
        }
    }
}

---

From source file:com.nuvolect.deepdive.probe.ApkZipUtil.java

/**
 * Unzip while excluding XML files into the target directory.
 * The added structure is updated to reflect any new files and directories created.
 * Overwrite files when requested.//  www.  j  a v  a2  s  .c  om
 * @param zipOmni
 * @param targetDir
 * @param progressStream
 * @return
 */
public static boolean unzipAllExceptXML(OmniFile zipOmni, OmniFile targetDir, ProgressStream progressStream) {

    String volumeId = zipOmni.getVolumeId();
    String rootFolderPath = targetDir.getPath();
    boolean DEBUG = true;

    ZipInputStream zis = new ZipInputStream(zipOmni.getFileInputStream());
    ZipEntry entry = null;
    try {
        while ((entry = zis.getNextEntry()) != null) {

            if (entry.isDirectory()) {

                OmniFile dir = new OmniFile(volumeId, entry.getName());
                if (dir.mkdir()) {

                    if (DEBUG)
                        LogUtil.log(LogUtil.LogType.OMNI_ZIP, "dir created: " + dir.getPath());
                }
            } else {

                String path = rootFolderPath + "/" + entry.getName();
                OmniFile file = new OmniFile(volumeId, path);

                if (!FilenameUtils.getExtension(file.getName()).contentEquals("xml")) {

                    // Create any necessary directories
                    file.getParentFile().mkdirs();

                    OutputStream out = file.getOutputStream();

                    OmniFiles.copyFileLeaveInOpen(zis, out);
                    if (DEBUG)
                        LogUtil.log(LogUtil.LogType.OMNI_ZIP, "file created: " + file.getPath());

                    progressStream.putStream("Unpacked: " + entry.getName());
                }
            }
        }
        zis.close();

    } catch (IOException e) {
        LogUtil.logException(LogUtil.LogType.OMNI_ZIP, e);
        return false;
    }

    return true;
}

---

From source file:Main.java

public static boolean unzipFile(InputStream fis, String destDir) {
    final byte[] buffer = new byte[4096];
    ZipInputStream zis = null;/*w  w  w .j a v a 2  s . c o m*/
    Log.e("Unzip", "destDir = " + destDir);
    try {
        // make sure the directory is existent
        File dstFile = new File(destDir);
        if (!dstFile.exists()) {
            dstFile.mkdirs();
        } else {
            int fileLenght = dstFile.listFiles().length;
            if (fileLenght >= 2) {
                return true;
            }
        }
        zis = new ZipInputStream(fis);
        ZipEntry entry;

        while ((entry = zis.getNextEntry()) != null) {
            String fileName = entry.getName();

            if (entry.isDirectory()) {
                new File(destDir, fileName).mkdirs();

            } else {
                BufferedOutputStream bos = new BufferedOutputStream(
                        new FileOutputStream(new File(destDir, fileName)));
                int lenRead;

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

                bos.close();
            }

            zis.closeEntry();
        }

        return true;

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

    } finally {
        if (zis != null) {
            try {
                zis.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return false;
}

---

From source file:Main.java

public static boolean unzip(InputStream inputStream, String dest, boolean replaceIfExists) {

    final int BUFFER_SIZE = 4096;

    BufferedOutputStream bufferedOutputStream = null;

    boolean succeed = true;

    try {/*from   w  w w  .j  a  va  2s  . c o m*/
        ZipInputStream zipInputStream = new ZipInputStream(new BufferedInputStream(inputStream));
        ZipEntry zipEntry;

        while ((zipEntry = zipInputStream.getNextEntry()) != null) {

            String zipEntryName = zipEntry.getName();

            //             if(!zipEntry.isDirectory()) {
            //                 File fil = new File(dest + zipEntryName);
            //                 fil.getParent()
            //             }

            // file exists ? delete ?
            File file2 = new File(dest + zipEntryName);

            if (file2.exists()) {
                if (replaceIfExists) {

                    try {
                        boolean b = deleteDir(file2);
                        if (!b) {
                            Log.e("Haggle", "Unzip failed to delete " + dest + zipEntryName);
                        } else {
                            Log.d("Haggle", "Unzip deleted " + dest + zipEntryName);
                        }
                    } catch (Exception e) {
                        Log.e("Haggle", "Unzip failed to delete " + dest + zipEntryName, e);
                    }
                }
            }

            // extract
            File file = new File(dest + zipEntryName);

            if (file.exists()) {

            } else {
                if (zipEntry.isDirectory()) {
                    file.mkdirs();
                    chmod(file, 0755);

                } else {

                    // create parent file folder if not exists yet
                    if (!file.getParentFile().exists()) {
                        file.getParentFile().mkdirs();
                        chmod(file.getParentFile(), 0755);
                    }

                    byte buffer[] = new byte[BUFFER_SIZE];
                    bufferedOutputStream = new BufferedOutputStream(new FileOutputStream(file), BUFFER_SIZE);
                    int count;

                    while ((count = zipInputStream.read(buffer, 0, BUFFER_SIZE)) != -1) {
                        bufferedOutputStream.write(buffer, 0, count);
                    }

                    bufferedOutputStream.flush();
                    bufferedOutputStream.close();
                }
            }

            // enable standalone python
            if (file.getName().endsWith(".so") || file.getName().endsWith(".xml")
                    || file.getName().endsWith(".py") || file.getName().endsWith(".pyc")
                    || file.getName().endsWith(".pyo")) {
                chmod(file, 0755);
            }

            Log.d("Haggle", "Unzip extracted " + dest + zipEntryName);
        }

        zipInputStream.close();

    } catch (FileNotFoundException e) {
        Log.e("Haggle", "Unzip error, file not found", e);
        succeed = false;
    } catch (Exception e) {
        Log.e("Haggle", "Unzip error: ", e);
        succeed = false;
    }

    return succeed;
}

---

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