Example usage for java.util.zip ZipInputStream read

Introduction

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

Prototype

public int read(byte b[]) throws IOException 

Source Link

Document

Reads up to b.length bytes of data from this input stream into an array of bytes.

Usage

From source file:org.bonitasoft.platform.setup.PlatformSetupTestUtils.java

private static void writeZipInputToFile(final ZipInputStream zipInputstream, final File outputFile)
        throws FileNotFoundException, IOException {
    // The input is a file. An FileOutputStream is created to write the content of the new file.
    outputFile.getParentFile().mkdirs();
    try (FileOutputStream fileOutputStream = new FileOutputStream(outputFile)) {
        // The contents of the new file, that is read from the ZipInputStream using a buffer (byte []), is written.
        int bytesRead;
        final byte[] buffer = new byte[1024];
        while ((bytesRead = zipInputstream.read(buffer)) > -1) {
            fileOutputStream.write(buffer, 0, bytesRead);
        }//  w  ww .j a v  a 2 s. c  o m
        fileOutputStream.flush();
    } catch (final IOException ioe) {
        // In case of error, the file is deleted
        outputFile.delete();
        throw ioe;
    }
}

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From source file:Main.java

private static void fileUnZip(ZipInputStream zis, File file) throws FileNotFoundException, IOException {
    java.util.zip.ZipEntry zip = null;
    while ((zip = zis.getNextEntry()) != null) {
        String name = zip.getName();
        File f = new File(file.getAbsolutePath() + File.separator + name);
        if (zip.isDirectory()) {
            f.mkdirs();/*w ww. ja  v a  2 s  . co m*/
        } else {
            f.getParentFile().mkdirs();
            f.createNewFile();
            BufferedOutputStream bos = null;
            try {
                bos = new BufferedOutputStream(new FileOutputStream(f));
                byte b[] = new byte[2048];
                int aa = 0;
                while ((aa = zis.read(b)) != -1) {
                    bos.write(b, 0, aa);
                }
                bos.flush();
            } finally {
                bos.close();
            }
            bos.close();
        }
    }

}

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From source file:gabi.FileUploadServlet.java

private static void unzip(String zipFilePath, String destDir) {
    File dir = new File(destDir);
    // create output directory if it doesn't exist
    if (!dir.exists())
        dir.mkdirs();/*from   www  .j  av  a2  s.com*/
    FileInputStream fis;
    //buffer for read and write data to file
    byte[] buffer = new byte[1024];
    try {
        fis = new FileInputStream(zipFilePath);
        ZipInputStream zis = new ZipInputStream(fis);
        ZipEntry ze = zis.getNextEntry();
        while (ze != null) {
            String fileName = ze.getName();
            File newFile = new File(destDir + File.separator + fileName);
            System.out.println("Unzipping to " + newFile.getAbsolutePath());
            //create directories for sub directories in zip
            new File(newFile.getParent()).mkdirs();
            FileOutputStream fos = new FileOutputStream(newFile);
            int len;
            while ((len = zis.read(buffer)) > 0) {
                fos.write(buffer, 0, len);
            }
            fos.close();
            //close this ZipEntry
            zis.closeEntry();
            ze = zis.getNextEntry();
        }
        //close last ZipEntry
        zis.closeEntry();
        zis.close();
        fis.close();
    } catch (IOException e) {
        e.printStackTrace();
    }

}

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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 w  w w. ja va  2s  .  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:pl.psnc.synat.wrdz.common.utility.ZipUtility.java

/**
 * Unpacks specified input stream into destination directory.
 * //from  w  ww  . ja v  a2s.  c  o  m
 * @param src
 *            zip source file
 * @param dest
 *            destination folder
 * @throws IOException
 *             in case when something goes wrong in method
 */
public static void unzip(InputStream src, File dest) throws IOException {
    if (!dest.exists()) {
        throw new FileNotFoundException("Destination folder not found!");
    }
    byte[] buffer = new byte[1024];
    ZipInputStream zipInput = new ZipInputStream(src);
    ZipEntry entry = null;
    while ((entry = zipInput.getNextEntry()) != null) {
        if (!entry.isDirectory()) {
            File file = new File(dest, entry.getName());
            File parentFile = file.getParentFile();
            if (parentFile != null) {
                parentFile.mkdirs();
            }
            BufferedOutputStream bos = null;
            try {
                bos = new BufferedOutputStream(new FileOutputStream(file), 1024);
                int len;
                while ((len = zipInput.read(buffer)) != -1) {
                    bos.write(buffer, 0, len);
                }
            } finally {
                bos.flush();
                bos.close();
            }
        }
        zipInput.closeEntry();
    }
}

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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 {//www.  ja v a  2s . c  om
        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();
    }
}

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From source file:org.springframework.xdocreport.core.utils.TemplatesUtils.java

/**
 * Get content as string from a file/*w w w.  j av  a 2s  . c o m*/
 * 
 * @param is
 *            odt file as input stream
 * 
 * @return content as string or null
 */
public static String getODTContentAsString(InputStream is) {
    try {
        ZipInputStream zipInputStream = new ZipInputStream(is);
        ZipEntry entry;
        entry = zipInputStream.getNextEntry();
        String tmpContent = "content.txt";
        File tmpContentFile = TemplatesUtils.createFileTemp(tmpContent);
        while (entry != null) {

            if (entry.getName().equals(ODTConstants.CONTENT_XML_ENTRY)) {
                // Reads content
                byte[] buf = new byte[1024];
                int len;
                OutputStream out = new FileOutputStream(tmpContentFile);
                while ((len = zipInputStream.read(buf)) > 0) {
                    out.write(buf, 0, len);
                }
                out.flush();
                break;
            }
            entry = zipInputStream.getNextEntry();
        }
        Reader reader = new InputStreamReader(new FileInputStream(tmpContentFile), EncodingConstants.UTF_8);
        StringWriter writer = new StringWriter();
        IOUtils.copy(reader, writer);

        return writer.toString();
    } catch (IOException e) {
        return null;
    }
}

---

From source file:gov.va.chir.tagline.dao.FileDao.java

public static TagLineModel loadTagLineModel(final File file) throws Exception {
    final TagLineModel model = new TagLineModel();

    // Unzip each file to temp
    final File temp = new File(System.getProperty("java.io.tmpdir"));

    byte[] buffer = new byte[BUFFER_SIZE];

    final ZipInputStream zis = new ZipInputStream(new FileInputStream(file));

    ZipEntry entry = zis.getNextEntry();

    while (entry != null) {
        final String name = entry.getName();

        File tempFile = new File(temp, name);

        // Write out file
        final FileOutputStream fos = new FileOutputStream(tempFile);
        int len;//from  w  ww .  ja  v  a  2  s . co m
        while ((len = zis.read(buffer)) > 0) {
            fos.write(buffer, 0, len);
        }

        fos.close();

        // Determine which file was written
        if (name.equalsIgnoreCase(FILENAME_FEATURES)) {
            model.setFeatures(loadFeatures(tempFile));
        } else if (name.equalsIgnoreCase(FILENAME_HEADER)) {
            model.setHeader(loadHeader(tempFile));
        } else if (name.equalsIgnoreCase(FILENAME_MODEL)) {
            model.setModel(loadModel(tempFile));
        } else {
            throw new IllegalStateException(String.format("Unknown file in TagLine model file (%s)", name));
        }

        // Delete temp file
        tempFile.delete();

        // Get next entry
        zis.closeEntry();
        entry = zis.getNextEntry();
    }

    zis.close();

    return model;
}

---

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  .  j  av a2 s  .com*/
        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();
    }
}

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From source file:org.n52.oxf.util.IOHelper.java

public static void decompressAll(File zipFile, File targetDirectory) throws IOException, ZipException {

    if (!targetDirectory.isDirectory())
        throw new IOException("2nd Parameter targetDirectory is not a valid diectory!");

    byte[] buf = new byte[4096];
    ZipInputStream in = new ZipInputStream(new FileInputStream(zipFile));
    while (true) {
        // Nchsten Eintrag lesen
        ZipEntry entry = in.getNextEntry();
        if (entry == null) {
            break;
        }/*from w  ww.  ja  v a 2  s  .co m*/

        // Ausgabedatei erzeugen
        FileOutputStream out = new FileOutputStream(
                targetDirectory.getAbsolutePath() + "/" + new File(entry.getName()).getName());
        // Lese-Vorgang
        int len;
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
        out.close();

        // Eintrag schlieen
        in.closeEntry();
    }
    in.close();
}

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