Example usage for java.util.zip ZipEntry setCrc

Introduction

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

Prototype

public void setCrc(long crc) 

Source Link

Document

Sets the CRC-32 checksum of the uncompressed entry data.

Usage

From source file:com.smash.revolance.ui.model.helper.ArchiveHelper.java

public static File buildArchive(File archive, File... files) throws FileNotFoundException {
    FileOutputStream fos = new FileOutputStream(archive);
    ZipOutputStream zos = new ZipOutputStream(fos);
    int bytesRead;
    byte[] buffer = new byte[1024];
    CRC32 crc = new CRC32();

    for (File file : files) {
        if (!file.exists()) {
            System.err.println("Skipping: " + file);
            continue;
        }//  w ww .  j av a  2  s .c om
        BufferedInputStream bis = null;
        try {
            bis = new BufferedInputStream(new FileInputStream(file));
            crc.reset();
            while ((bytesRead = bis.read(buffer)) != -1) {
                crc.update(buffer, 0, bytesRead);
            }

            bis.close();

            // Reset to beginning of input stream
            bis = new BufferedInputStream(new FileInputStream(file));
            String entryPath = FileHelper.getRelativePath(archive.getParentFile(), file);

            ZipEntry entry = new ZipEntry(entryPath);
            entry.setMethod(ZipEntry.STORED);
            entry.setCompressedSize(file.length());
            entry.setSize(file.length());
            entry.setCrc(crc.getValue());
            zos.putNextEntry(entry);
            while ((bytesRead = bis.read(buffer)) != -1) {
                zos.write(buffer, 0, bytesRead);
            }
        } catch (FileNotFoundException e) {

        } catch (IOException e) {
            e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
        } finally {
            IOUtils.closeQuietly(bis);
        }
    }
    IOUtils.closeQuietly(zos);
    return archive;
}

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From source file:net.sf.jabref.exporter.OpenDocumentSpreadsheetCreator.java

private static void storeOpenDocumentSpreadsheetFile(File file, InputStream source) throws Exception {

    try (ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(file)))) {

        //addResourceFile("mimetype", "/resource/ods/mimetype", out);
        ZipEntry ze = new ZipEntry("mimetype");
        String mime = "application/vnd.oasis.opendocument.spreadsheet";
        ze.setMethod(ZipEntry.STORED);
        ze.setSize(mime.length());/*w ww. j a  v a 2s  .c  o  m*/
        CRC32 crc = new CRC32();
        crc.update(mime.getBytes());
        ze.setCrc(crc.getValue());
        out.putNextEntry(ze);
        for (int i = 0; i < mime.length(); i++) {
            out.write(mime.charAt(i));
        }
        out.closeEntry();

        ZipEntry zipEntry = new ZipEntry("content.xml");
        //zipEntry.setMethod(ZipEntry.DEFLATED);
        out.putNextEntry(zipEntry);
        int c;
        while ((c = source.read()) >= 0) {
            out.write(c);
        }
        out.closeEntry();

        // Add manifest (required for OOo 2.0) and "meta.xml": These are in the
        // resource/ods directory, and are copied verbatim into the zip file.
        OpenDocumentSpreadsheetCreator.addResourceFile("meta.xml", "/resource/ods/meta.xml", out);

        OpenDocumentSpreadsheetCreator.addResourceFile("META-INF/manifest.xml", "/resource/ods/manifest.xml",
                out);
    }
}

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From source file:JarUtils.java

/**
 * This recursive method writes all matching files and directories to
 * the jar output stream./*from w ww  . j a  v a 2s . co m*/
 */
private static void jar(File src, String prefix, JarInfo info) throws IOException {

    JarOutputStream jout = info.out;
    if (src.isDirectory()) {
        // create / init the zip entry
        prefix = prefix + src.getName() + "/";
        ZipEntry entry = new ZipEntry(prefix);
        entry.setTime(src.lastModified());
        entry.setMethod(JarOutputStream.STORED);
        entry.setSize(0L);
        entry.setCrc(0L);
        jout.putNextEntry(entry);
        jout.closeEntry();

        // process the sub-directories
        File[] files = src.listFiles(info.filter);
        for (int i = 0; i < files.length; i++) {
            jar(files[i], prefix, info);
        }
    } else if (src.isFile()) {
        // get the required info objects
        byte[] buffer = info.buffer;

        // create / init the zip entry
        ZipEntry entry = new ZipEntry(prefix + src.getName());
        entry.setTime(src.lastModified());
        jout.putNextEntry(entry);

        // dump the file
        FileInputStream in = new FileInputStream(src);
        int len;
        while ((len = in.read(buffer, 0, buffer.length)) != -1) {
            jout.write(buffer, 0, len);
        }
        in.close();
        jout.closeEntry();
    }
}

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From source file:net.firejack.platform.core.utils.ArchiveUtils.java

/**
 * @param basePath/*from   ww w. j  a v  a 2  s .co m*/
 * @param zipPath
 * @param filePaths
 * @throws java.io.IOException
 */
public static void zip(File basePath, File zipPath, Map<String, String> filePaths) throws IOException {
    BufferedInputStream origin = null;
    ZipOutputStream out = null;
    FileOutputStream dest = null;
    try {
        dest = new FileOutputStream(zipPath);
        out = new ZipOutputStream(new BufferedOutputStream(dest));
        //out.setMethod(ZipOutputStream.DEFLATED);
        byte data[] = new byte[BUFFER];
        for (Map.Entry<String, String> file : filePaths.entrySet()) {
            String filename = file.getKey();
            String filePath = file.getValue();
            System.out.println("Adding: " + basePath.getPath() + filePath + " => " + filename);
            File f = new File(basePath, filePath);
            if (f.exists()) {
                FileInputStream fi = new FileInputStream(f);
                origin = new BufferedInputStream(fi, BUFFER);
                ZipEntry entry = new ZipEntry(filename);
                entry.setCrc(FileUtils.checksumCRC32(new File(basePath, filePath)));
                out.putNextEntry(entry);
                int count;
                while ((count = origin.read(data, 0, BUFFER)) != -1) {
                    out.write(data, 0, count);
                }
                origin.close();
            }
        }
    } finally {
        if (origin != null)
            origin.close();
        if (out != null)
            out.close();
        if (dest != null)
            dest.close();
    }
}

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From source file:eionet.gdem.utils.ZipUtil.java

/**
 *
 * @param f//  www. jav  a  2 s  . c  o  m
 *            - File that will be zipped
 * @param outZip
 *            - ZipOutputStream represents the zip file, where the files will be placed
 * @param sourceDir
 *            - root directory, where the zipping started
 * @param doCompress
 *            - don't comress the file, if doCompress=true
 * @throws IOException If an error occurs.
 */
public static void zipFile(File f, ZipOutputStream outZip, String sourceDir, boolean doCompress)
        throws IOException {

    // Read the source file into byte array
    byte[] fileBytes = Utils.getBytesFromFile(f);

    // create a new zip entry
    String strAbsPath = f.getPath();
    String strZipEntryName = strAbsPath.substring(sourceDir.length() + 1, strAbsPath.length());
    strZipEntryName = Utils.Replace(strZipEntryName, File.separator, "/");
    ZipEntry anEntry = new ZipEntry(strZipEntryName);

    // Don't compress the file, if not needed
    if (!doCompress) {
        // ZipEntry can't calculate crc size automatically, if we use STORED method.
        anEntry.setMethod(ZipEntry.STORED);
        anEntry.setSize(fileBytes.length);
        CRC32 crc321 = new CRC32();
        crc321.update(fileBytes);
        anEntry.setCrc(crc321.getValue());
    }
    // place the zip entry in the ZipOutputStream object
    outZip.putNextEntry(anEntry);

    // now write the content of the file to the ZipOutputStream
    outZip.write(fileBytes);

    outZip.flush();
    // Close the current entry
    outZip.closeEntry();

}

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From source file:brut.directory.ZipUtils.java

private static void processFolder(final File folder, final ZipOutputStream zipOutputStream,
        final int prefixLength) throws BrutException, IOException {
    for (final File file : folder.listFiles()) {
        if (file.isFile()) {
            final String cleanedPath = BrutIO.sanitizeUnknownFile(folder,
                    file.getPath().substring(prefixLength));
            final ZipEntry zipEntry = new ZipEntry(BrutIO.normalizePath(cleanedPath));

            // aapt binary by default takes in parameters via -0 arsc to list extensions that shouldn't be
            // compressed. We will replicate that behavior
            final String extension = FilenameUtils.getExtension(file.getAbsolutePath());
            if (mDoNotCompress != null
                    && (mDoNotCompress.contains(extension) || mDoNotCompress.contains(zipEntry.getName()))) {
                zipEntry.setMethod(ZipEntry.STORED);
                zipEntry.setSize(file.length());
                BufferedInputStream unknownFile = new BufferedInputStream(new FileInputStream(file));
                CRC32 crc = BrutIO.calculateCrc(unknownFile);
                zipEntry.setCrc(crc.getValue());
                unknownFile.close();//from w ww  .  ja v  a  2 s .c o m
            } else {
                zipEntry.setMethod(ZipEntry.DEFLATED);
            }

            zipOutputStream.putNextEntry(zipEntry);
            try (FileInputStream inputStream = new FileInputStream(file)) {
                IOUtils.copy(inputStream, zipOutputStream);
            }
            zipOutputStream.closeEntry();
        } else if (file.isDirectory()) {
            processFolder(file, zipOutputStream, prefixLength);
        }
    }
}

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From source file:it.cnr.icar.eric.common.Utility.java

public static ZipOutputStream createZipOutputStream(String baseDir, String[] relativeFilePaths, OutputStream os)
        throws FileNotFoundException, IOException {
    if (baseDir.startsWith("file:/")) {
        baseDir = baseDir.substring(5);/*from   w ww  . ja  va2  s  . c  o  m*/
    }
    ZipOutputStream zipoutputstream = new ZipOutputStream(os);

    zipoutputstream.setMethod(ZipOutputStream.STORED);

    for (int i = 0; i < relativeFilePaths.length; i++) {
        File file = new File(baseDir + FILE_SEPARATOR + relativeFilePaths[i]);

        byte[] buffer = new byte[1000];

        int n;

        FileInputStream fis;

        // Calculate the CRC-32 value.  This isn't strictly necessary
        //   for deflated entries, but it doesn't hurt.

        CRC32 crc32 = new CRC32();

        fis = new FileInputStream(file);

        while ((n = fis.read(buffer)) > -1) {
            crc32.update(buffer, 0, n);
        }

        fis.close();

        // Create a zip entry.

        ZipEntry zipEntry = new ZipEntry(relativeFilePaths[i]);

        zipEntry.setSize(file.length());
        zipEntry.setTime(file.lastModified());
        zipEntry.setCrc(crc32.getValue());

        // Add the zip entry and associated data.

        zipoutputstream.putNextEntry(zipEntry);

        fis = new FileInputStream(file);

        while ((n = fis.read(buffer)) > -1) {
            zipoutputstream.write(buffer, 0, n);
        }

        fis.close();

        zipoutputstream.closeEntry();
    }

    return zipoutputstream;
}

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From source file:net.librec.util.FileUtil.java

/**
 * Zip a given folder//from ww  w  . j  ava2  s  .  c o m
 *
 * @param dirPath    a given folder: must be all files (not sub-folders)
 * @param filePath   zipped file
 * @throws Exception if error occurs
 */
public static void zipFolder(String dirPath, String filePath) throws Exception {
    File outFile = new File(filePath);
    ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(outFile));
    int bytesRead;
    byte[] buffer = new byte[1024];
    CRC32 crc = new CRC32();
    for (File file : listFiles(dirPath)) {
        BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
        crc.reset();
        while ((bytesRead = bis.read(buffer)) != -1) {
            crc.update(buffer, 0, bytesRead);
        }
        bis.close();

        // Reset to beginning of input stream
        bis = new BufferedInputStream(new FileInputStream(file));
        ZipEntry entry = new ZipEntry(file.getName());
        entry.setMethod(ZipEntry.STORED);
        entry.setCompressedSize(file.length());
        entry.setSize(file.length());
        entry.setCrc(crc.getValue());
        zos.putNextEntry(entry);
        while ((bytesRead = bis.read(buffer)) != -1) {
            zos.write(buffer, 0, bytesRead);
        }
        bis.close();
    }
    zos.close();

    LOG.debug("A zip-file is created to: " + outFile.getPath());
}

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From source file:Main.java

public void doZip(String filename, String zipfilename) throws Exception {
    byte[] buf = new byte[1024];
    FileInputStream fis = new FileInputStream(filename);
    fis.read(buf, 0, buf.length);/*ww  w. j  a va  2s  .c  o m*/

    CRC32 crc = new CRC32();
    ZipOutputStream s = new ZipOutputStream((OutputStream) new FileOutputStream(zipfilename));
    s.setLevel(6);

    ZipEntry entry = new ZipEntry(filename);
    entry.setSize((long) buf.length);
    crc.reset();
    crc.update(buf);
    entry.setCrc(crc.getValue());
    s.putNextEntry(entry);
    s.write(buf, 0, buf.length);
    s.finish();
    s.close();
}

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From source file:Main.java

public void doZip(String filename, String zipfilename) throws Exception {
    byte[] buf = new byte[1024];
    FileInputStream fis = new FileInputStream(filename);
    fis.read(buf, 0, buf.length);//from  ww w .ja  va  2 s . c om

    CRC32 crc = new CRC32();
    ZipOutputStream s = new ZipOutputStream((OutputStream) new FileOutputStream(zipfilename));
    s.setLevel(6);

    ZipEntry entry = new ZipEntry(filename);
    entry.setSize((long) buf.length);
    entry.setMethod(ZipEntry.DEFLATED);
    crc.reset();
    crc.update(buf);
    entry.setCrc(crc.getValue());
    s.putNextEntry(entry);
    s.write(buf, 0, buf.length);
    s.finish();
    s.close();
}

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