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:com.geocent.owf.openlayers.handler.KmzHandler.java

@Override
public String handleContent(HttpServletResponse response, InputStream responseStream) throws IOException {
    ZipInputStream zis = new ZipInputStream(responseStream);

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    byte[] buffer = new byte[1024];

    ZipEntry ze = zis.getNextEntry();
    while (ze != null) {
        if (ze.getName().endsWith("kml")) {
            int len;
            while ((len = zis.read(buffer)) > 0) {
                baos.write(buffer, 0, len);
            }//from ww  w  .  j  av  a 2s  .  c o  m

            response.setContentType(ContentTypes.KML.getContentType());
            return new String(baos.toByteArray(), Charset.defaultCharset());
        }

        ze = zis.getNextEntry();
    }

    throw new IOException("Missing KML file entry.");
}

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From source file:cc.recommenders.utils.Zips.java

public static void unzip(File source, File dest) throws IOException {
    ZipInputStream zis = null;/*from w  w w  . ja v a 2 s . com*/
    try {
        InputSupplier<FileInputStream> fis = Files.newInputStreamSupplier(source);
        zis = new ZipInputStream(fis.getInput());
        ZipEntry entry;
        while ((entry = zis.getNextEntry()) != null) {
            if (!entry.isDirectory()) {
                final File file = new File(dest, entry.getName());
                Files.createParentDirs(file);
                Files.write(ByteStreams.toByteArray(zis), file);
            }
        }
    } finally {
        Closeables.closeQuietly(zis);
    }
}

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From source file:com.oprisnik.semdroid.app.parser.manifest.AXMLConverter.java

public static String getManifestString(byte[] apk) {
    String result = null;//from   w  w  w .  ja  v a  2s.c o m
    ZipInputStream zis = null;
    ByteArrayInputStream fis = null;
    try {

        fis = new ByteArrayInputStream(apk);

        zis = new ZipInputStream(fis);
        for (ZipEntry entry = zis.getNextEntry(); entry != null; entry = zis.getNextEntry()) {
            if (entry.getName().equals("AndroidManifest.xml")) {
                result = getManifestString(zis);
                break;
            }
        }
    } catch (FileNotFoundException e) {
        IOUtils.closeQuietly(fis);
    } catch (IOException e) {
    } finally {
        IOUtils.closeQuietly(zis);
    }
    return result;
}

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From source file:Main.java

/**
 * Extract a zip resource into real files and directories
 * //  w  w  w .  j a v  a  2s  . c o m
 * @param in typically given as getResources().openRawResource(R.raw.something)
 * @param directory target directory
 * @param overwrite indicates whether to overwrite existing files
 * @return list of files that were unpacked (if overwrite is false, this list won't include files
 *         that existed before)
 * @throws IOException
 */
public static List<File> extractZipResource(InputStream in, File directory, boolean overwrite)
        throws IOException {
    final int BUFSIZE = 2048;
    byte buffer[] = new byte[BUFSIZE];
    ZipInputStream zin = new ZipInputStream(new BufferedInputStream(in, BUFSIZE));
    List<File> files = new ArrayList<File>();
    ZipEntry entry;
    directory.mkdirs();
    while ((entry = zin.getNextEntry()) != null) {
        File file = new File(directory, entry.getName());
        files.add(file);
        if (overwrite || !file.exists()) {
            if (entry.isDirectory()) {
                file.mkdirs();
            } else {
                file.getParentFile().mkdirs(); // Necessary because some zip files lack directory entries.
                BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file), BUFSIZE);
                int nRead;
                while ((nRead = zin.read(buffer, 0, BUFSIZE)) > 0) {
                    bos.write(buffer, 0, nRead);
                }
                bos.flush();
                bos.close();
            }
        }
    }
    zin.close();
    return files;
}

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From source file:eionet.gdem.conversion.odf.OpenDocumentUtils.java

/**
 * Returns true, if inputstream is zip file
 * @param input InputStream//  www.j a  v  a  2 s  . c o  m
 * @return True if InputStream is a zip file.
 */
public static boolean isSpreadsheetFile(InputStream input) {

    ZipInputStream zipStream = null;
    ZipEntry zipEntry = null;
    try {
        zipStream = new ZipInputStream(input);
        while (zipStream.available() == 1 && (zipEntry = zipStream.getNextEntry()) != null) {
            if (zipEntry != null) {
                if ("content.xml".equals(zipEntry.getName())) {
                    // content file found, it is OpenDocument.
                    return true;
                }
            }
        }
    } catch (IOException ioe) {
        return false;
    } finally {
        IOUtils.closeQuietly(zipStream);
    }
    return false;

}

---

From source file:com.twemyeez.picklr.InstallManager.java

public static void unzip() {

    // Firstly get the working directory
    String workingDirectory = Minecraft.getMinecraft().mcDataDir.getAbsolutePath();

    // If it ends with a . then remove it
    if (workingDirectory.endsWith(".")) {
        workingDirectory = workingDirectory.substring(0, workingDirectory.length() - 1);
    }/*  w w  w .j  av a2s. c  om*/

    // If it doesn't end with a / then add it
    if (!workingDirectory.endsWith("/") && !workingDirectory.endsWith("\\")) {
        workingDirectory = workingDirectory + "/";
    }

    // Use a test file to see if libraries installed
    File file = new File(workingDirectory + "mods/mp3spi1.9.5.jar");

    // If the libraries are installed, return
    if (file.exists()) {
        System.out.println("Checking " + file.getAbsolutePath());
        System.out.println("Target file exists, so not downloading API");
        return;
    }

    // Now try to download the libraries
    try {

        String location = "http://www.javazoom.net/mp3spi/sources/mp3spi1.9.5.zip";

        // Define the URL
        URL url = new URL(location);

        // Get the ZipInputStream
        ZipInputStream zipInput = new ZipInputStream(new BufferedInputStream((url).openStream()));

        // Use a temporary ZipEntry as a buffer
        ZipEntry zipFile;

        // While there are more file entries
        while ((zipFile = zipInput.getNextEntry()) != null) {
            // Check if it is one of the file names that we want to copy
            Boolean required = false;
            if (zipFile.getName().indexOf("mp3spi1.9.5.jar") != -1) {
                required = true;
            }
            if (zipFile.getName().indexOf("jl1.0.1.jar") != -1) {
                required = true;
            }
            if (zipFile.getName().indexOf("tritonus_share.jar") != -1) {
                required = true;
            }
            if (zipFile.getName().indexOf("LICENSE.txt") != -1) {
                required = true;
            }

            // If it is, then we shall now copy it
            if (!zipFile.getName().replace("MpegAudioSPI1.9.5/", "").equals("") && required) {

                // Get the file location
                String tempFile = new File(zipFile.getName()).getName();

                tempFile = tempFile.replace("LICENSE.txt", "MpegAudioLicence.txt");

                // Initialise the target file
                File targetFile = (new File(
                        workingDirectory + "mods/" + tempFile.replace("MpegAudioSPI1.9.5/", "")));

                // Print a debug/alert message
                System.out.println("Picklr is extracting to " + workingDirectory + "mods/"
                        + tempFile.replace("MpegAudioSPI1.9.5/", ""));

                // Make parent directories if required
                targetFile.getParentFile().mkdirs();

                // If the file does not exist, create it
                if (!targetFile.exists()) {
                    targetFile.createNewFile();
                }

                // Create a buffered output stream to the destination
                BufferedOutputStream destinationOutput = new BufferedOutputStream(
                        new FileOutputStream(targetFile, false), 2048);

                // Store the data read
                int bytesRead;

                // Data buffer
                byte dataBuffer[] = new byte[2048];

                // While there is still data to write
                while ((bytesRead = zipInput.read(dataBuffer, 0, 2048)) != -1) {
                    // Write it to the output stream
                    destinationOutput.write(dataBuffer, 0, bytesRead);
                }

                // Flush the output
                destinationOutput.flush();

                // Close the output stream
                destinationOutput.close();
            }

        }
        // Close the zip input
        zipInput.close();
    } catch (Exception e) {
        e.printStackTrace();
    }

}

---

From source file:Main.java

/** Returns true if these zip files act like equivalent sets.
 * The order of the zip entries is not important: if they contain
 * exactly the same contents, this returns true.
 * @param zip1 one zip file /* w  w  w. ja  v  a2 s . com*/
 * @param zip2 another zip file
 * @return true if the two zip archives are equivalent sets
 * @throws IOException
 */
public static boolean zipEquals(File zip1, File zip2) throws IOException {
    if (zip1.equals(zip2))
        return true;

    InputStream in = null;
    ZipInputStream zipIn = null;
    try {
        in = new FileInputStream(zip1);
        zipIn = new ZipInputStream(in);
        ZipEntry e = zipIn.getNextEntry();
        Vector<String> entries = new Vector<String>();
        while (e != null) {
            entries.add(e.getName());

            InputStream other = getZipEntry(zip2, e.getName());
            if (other == null) {
                return false;
            }

            if (equals(zipIn, other) == false) {
                return false;
            }
            e = zipIn.getNextEntry();
        }
        //now we've established everything in zip1 is in zip2

        //but what if zip2 has entries zip1 doesn't?
        zipIn.close();
        in.close();

        in = new FileInputStream(zip2);
        zipIn = new ZipInputStream(in);
        e = zipIn.getNextEntry();
        while (e != null) {
            if (entries.contains(e.getName()) == false) {
                return false;
            }
            e = zipIn.getNextEntry();
        }

        //the entries are exactly the same
        return true;
    } finally {
        try {
            zipIn.close();
        } catch (Throwable t) {
        }
        try {
            in.close();
        } catch (Throwable t) {
        }
    }
}

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From source file:de.suse.swamp.util.FileUtils.java

/**
 * Decompress the provided Stream to "targetPath"
 *///  w  ww  .j ava 2 s .  co m
public static void uncompress(InputStream inputFile, String targetPath) throws Exception {
    ZipInputStream zin = new ZipInputStream(new BufferedInputStream(inputFile));
    BufferedOutputStream dest = null;
    ZipEntry entry;
    while ((entry = zin.getNextEntry()) != null) {
        int count;
        byte data[] = new byte[2048];
        // write the files to the disk
        if (entry.isDirectory()) {
            org.apache.commons.io.FileUtils.forceMkdir(new File(targetPath + "/" + entry.getName()));
        } else {
            FileOutputStream fos = new FileOutputStream(targetPath + "/" + entry.getName());
            dest = new BufferedOutputStream(fos, 2048);
            while ((count = zin.read(data, 0, 2048)) != -1) {
                dest.write(data, 0, count);
            }
            dest.flush();
            dest.close();
        }
    }
}

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From source file:JarResources.java

public JarResources(String jarFileName) throws Exception {
    this.jarFileName = jarFileName;
    ZipFile zf = new ZipFile(jarFileName);
    Enumeration e = zf.entries();
    while (e.hasMoreElements()) {
        ZipEntry ze = (ZipEntry) e.nextElement();

        htSizes.put(ze.getName(), new Integer((int) ze.getSize()));
    }/* ww w.  j  a  va 2 s. co m*/
    zf.close();

    // extract resources and put them into the hashtable.
    FileInputStream fis = new FileInputStream(jarFileName);
    BufferedInputStream bis = new BufferedInputStream(fis);
    ZipInputStream zis = new ZipInputStream(bis);
    ZipEntry ze = null;
    while ((ze = zis.getNextEntry()) != null) {
        if (ze.isDirectory()) {
            continue;
        }

        int size = (int) ze.getSize();
        // -1 means unknown size.
        if (size == -1) {
            size = ((Integer) htSizes.get(ze.getName())).intValue();
        }

        byte[] b = new byte[(int) size];
        int rb = 0;
        int chunk = 0;
        while (((int) size - rb) > 0) {
            chunk = zis.read(b, rb, (int) size - rb);
            if (chunk == -1) {
                break;
            }
            rb += chunk;
        }

        htJarContents.put(ze.getName(), b);
    }
}

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

public static File extractFirstZipEntry(File zipFile, boolean deleteAfterUnzip) throws IOException {
    ZipInputStream zipInputStream = null;
    File targetFile = null;//from w ww . j a v  a2  s.  c  om
    try {
        zipInputStream = new ZipInputStream(new FileInputStream(zipFile));
        ZipEntry zipEntry = zipInputStream.getNextEntry();
        if (zipEntry != null) {
            targetFile = doExtractInTheSameFolder(zipFile, zipInputStream, zipEntry);
        }
    } finally {
        IOUtils.closeQuietly(zipInputStream);
    }

    if (deleteAfterUnzip && targetFile != null && targetFile.exists()) {
        FileUtils.deleteAndReport(zipFile);
    }

    return targetFile;
}

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