Example usage for java.util.zip ZipFile entries

Introduction

In this page you can find the example usage for java.util.zip ZipFile entries.

Prototype

public Enumeration<? extends ZipEntry> entries() 

Source Link

Document

Returns an enumeration of the ZIP file entries.

Usage

From source file:org.eclipse.mylyn.commons.sdk.util.CommonTestUtil.java

private static void unzip(ZipFile zipFile, File rootDstDir, File dstDir, int depth) throws IOException {

    Enumeration<? extends ZipEntry> entries = zipFile.entries();

    try {//  w  w w .j  a  v  a  2 s  . c  o m
        while (entries.hasMoreElements()) {
            ZipEntry entry = entries.nextElement();
            if (entry.isDirectory()) {
                continue;
            }
            String entryName = entry.getName();
            File file = new File(dstDir, changeSeparator(entryName, '/', File.separatorChar));
            file.getParentFile().mkdirs();
            InputStream src = null;
            OutputStream dst = null;
            try {
                src = zipFile.getInputStream(entry);
                dst = new FileOutputStream(file);
                transferData(src, dst);
            } finally {
                if (dst != null) {
                    try {
                        dst.close();
                    } catch (IOException e) {
                        // don't need to catch this
                    }
                }
                if (src != null) {
                    try {
                        src.close();
                    } catch (IOException e) {
                        // don't need to catch this
                    }
                }
            }
        }
    } finally {
        try {
            zipFile.close();
        } catch (IOException e) {
            // don't need to catch this
        }
    }
}

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From source file:org.apache.kudu.mapreduce.KuduTableMapReduceUtil.java

/**
 * Add entries to <code>packagedClasses</code> corresponding to class files
 * contained in <code>jar</code>.
 * @param jar The jar who's content to list.
 * @param packagedClasses map[class -> jar]
 *//* w ww. j av a  2  s  . c om*/
private static void updateMap(String jar, Map<String, String> packagedClasses) throws IOException {
    if (null == jar || jar.isEmpty()) {
        return;
    }
    ZipFile zip = null;
    try {
        zip = new ZipFile(jar);
        for (Enumeration<? extends ZipEntry> iter = zip.entries(); iter.hasMoreElements();) {
            ZipEntry entry = iter.nextElement();
            if (entry.getName().endsWith("class")) {
                packagedClasses.put(entry.getName(), jar);
            }
        }
    } finally {
        if (null != zip) {
            zip.close();
        }
    }
}

---

From source file:apim.restful.importexport.utils.APIImportUtil.java

/**
 * This method decompresses API the archive
 *
 * @param sourceFile  The archive containing the API
 * @param destination location of the archive to be extracted
 * @return Name of the extracted directory
 * @throws APIImportException If the decompressing fails
 */// w  w w. j  a  v a2  s. c o m
public static String extractArchive(File sourceFile, String destination) throws APIImportException {

    BufferedInputStream inputStream = null;
    InputStream zipInputStream = null;
    FileOutputStream outputStream = null;
    ZipFile zip = null;
    String archiveName = null;

    try {
        zip = new ZipFile(sourceFile);
        Enumeration zipFileEntries = zip.entries();
        int index = 0;

        // Process each entry
        while (zipFileEntries.hasMoreElements()) {

            // grab a zip file entry
            ZipEntry entry = (ZipEntry) zipFileEntries.nextElement();
            String currentEntry = entry.getName();

            //This index variable is used to get the extracted folder name; that is root directory
            if (index == 0) {
                archiveName = currentEntry.substring(0,
                        currentEntry.indexOf(APIImportExportConstants.ARCHIVE_PATH_SEPARATOR));
                --index;
            }

            File destinationFile = new File(destination, currentEntry);
            File destinationParent = destinationFile.getParentFile();

            // create the parent directory structure
            if (destinationParent.mkdirs()) {
                log.info("Creation of folder is successful. Directory Name : " + destinationParent.getName());
            }

            if (!entry.isDirectory()) {
                zipInputStream = zip.getInputStream(entry);
                inputStream = new BufferedInputStream(zipInputStream);

                // write the current file to the destination
                outputStream = new FileOutputStream(destinationFile);
                IOUtils.copy(inputStream, outputStream);
            }
        }
        return archiveName;
    } catch (IOException e) {
        log.error("Failed to extract archive file ", e);
        throw new APIImportException("Failed to extract archive file. " + e.getMessage());
    } finally {
        IOUtils.closeQuietly(zipInputStream);
        IOUtils.closeQuietly(inputStream);
        IOUtils.closeQuietly(outputStream);
    }
}

---

From source file:org.cloudifysource.shell.commands.TestRecipe.java

/**
 * Unzips a given file.//from   ww  w  .j  a  v  a  2s  .  com
 *
 * @param inputFile
 *            The zip file to extract
 * @return The new folder, containing the extracted content of the zip file
 * @throws IOException
 *             Reporting a failure to extract the zipped file or close it afterwards
 */
private static File unzipFile(final File inputFile) throws IOException {

    ZipFile zipFile = null;
    try {
        final File baseDir = TestRecipe.createTempDir();
        zipFile = new ZipFile(inputFile);
        final Enumeration<? extends ZipEntry> entries = zipFile.entries();

        while (entries.hasMoreElements()) {
            final ZipEntry entry = entries.nextElement();

            if (entry.isDirectory()) {

                logger.fine("Extracting directory: " + entry.getName());
                final File dir = new File(baseDir, entry.getName());
                dir.mkdir();
                continue;
            }

            logger.finer("Extracting file: " + entry.getName());
            final File file = new File(baseDir, entry.getName());
            file.getParentFile().mkdirs();
            ServiceReader.copyInputStream(zipFile.getInputStream(entry),
                    new BufferedOutputStream(new FileOutputStream(file)));
        }
        return baseDir;

    } finally {
        if (zipFile != null) {
            try {
                zipFile.close();
            } catch (final IOException e) {
                logger.log(Level.SEVERE, "Failed to close zip file after unzipping zip contents", e);
            }
        }
    }

}

---

From source file:fridgegameinstaller.installation.java

public static void unzip(ZipFile zipFile, File jiniHomeParentDir) {

    Enumeration files = zipFile.entries();
    File f = null;//w  w w .j  ava2  s.co m
    FileOutputStream fos = null;

    while (files.hasMoreElements()) {
        try {
            ZipEntry entry = (ZipEntry) files.nextElement();
            InputStream eis = zipFile.getInputStream(entry);
            byte[] buffer = new byte[1024];
            int bytesRead = 0;

            f = new File(jiniHomeParentDir.getAbsolutePath() + File.separator + entry.getName());

            if (entry.isDirectory()) {
                f.mkdirs();
                continue;
            } else {
                f.getParentFile().mkdirs();
                f.createNewFile();
            }

            fos = new FileOutputStream(f);

            while ((bytesRead = eis.read(buffer)) != -1) {
                fos.write(buffer, 0, bytesRead);
            }
        } catch (IOException e) {
            e.printStackTrace();
            continue;
        } finally {
            if (fos != null) {
                try {
                    fos.close();
                } catch (IOException e) {
                    // ignore
                }
            }
        }
    }
}

---

From source file:marytts.util.io.FileUtils.java

/**
 * Unzip a zip archive into a directory on the file system.
 * Thanks to Piotr Gabryanczyk for making this code available at http://piotrga.wordpress.com/2008/05/07/how-to-unzip-archive-in-java/
 * @param archive the zip file to extract
 * @param outputDir the directory below which to extract the contents of the zip file. If this does not exist, it is created.
 * @throws IOException if any part of the process fails.
 *//* ww  w.j a  v a  2s . com*/
public static void unzipArchive(File archive, File outputDir) throws IOException {
    ZipFile zipfile = new ZipFile(archive);
    for (Enumeration<? extends ZipEntry> e = zipfile.entries(); e.hasMoreElements();) {
        ZipEntry entry = e.nextElement();
        unzipEntry(zipfile, entry, outputDir);
    }
}

---

From source file:org.apache.sysml.validation.ValidateLicAndNotice.java

/**
 * This will return the list of files from zip file.
 *
 * @param   zipFileName is the name of zip file from which list of files with specified file extension will be returned.
 * @param   fileExt is the file extension to be used to get list of files to be returned.
 * @return   Returns list of files having specified extension from zip file.
 *//*from ww w. jav a 2  s  .com*/
public static List<String> getFilesFromZip(String zipFileName, String fileExt) {
    List<String> files = new ArrayList<String>();
    try {
        ZipEntry entry;
        ZipFile zipfile = new ZipFile(zipFileName);
        Enumeration e = zipfile.entries();
        while (e.hasMoreElements()) {
            entry = (ZipEntry) e.nextElement();
            if (entry.getName().endsWith("." + fileExt)) {
                int iPos = entry.getName().lastIndexOf("/");
                if (iPos == 0)
                    --iPos;
                String strFileName = entry.getName().substring(iPos + 1);
                files.add(strFileName);
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return (files);
}

---

From source file:org.apache.sysml.validation.ValidateLicAndNotice.java

/**
 * This will return the set of packages from zip file.
 *
 * @param   zipFileName is the name of zip file from which set of class packages will be returned.
 * @return   Returns set of packages for classes included in the zip file .
 *//*from ww  w  . ja v a  2  s.c om*/
public static HashMap<String, Boolean> getPackagesFromZip(String zipFileName) throws Exception {
    HashMap<String, Boolean> packages = new HashMap<String, Boolean>();
    try {
        ZipEntry entry;
        ZipFile zipfile = new ZipFile(zipFileName);
        Enumeration e = zipfile.entries();
        while (e.hasMoreElements()) {
            entry = (ZipEntry) e.nextElement();
            if (!entry.getName().startsWith(Constants.SYSTEMML_PACKAGE)
                    && entry.getName().endsWith("." + Constants.CLASS)) {
                int iPos = entry.getName().lastIndexOf("/");
                if (iPos > 0) {
                    String strPackageName = entry.getName().substring(0, iPos);
                    packages.put(strPackageName, Boolean.FALSE);
                    Utility.debugPrint(Constants.DEBUG_CODE, "Package found : " + strPackageName);
                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
        throw e;
    }
    return packages;
}

---

From source file:org.apache.sysml.validation.ValidateLicAndNotice.java

/**
 * This will return the file from zip file and store it in specified location.
 *
 * @param   zipFileName is the name of zip file from which file to be extracted.
 * @param   fileName is the name of the file to be extracted.
 * @param   strDestLoc is the location where file will be extracted.
 * @param    bFirstDirLevel to indicate to get file from first directory level.
 * @return  Sucess or Failure/*ww w .ja  v a 2 s .  c  o  m*/
 */
public static boolean extractFileFromZip(String zipFileName, String fileName, String strDestLoc,
        boolean bFirstDirLevel) {
    boolean bRetCode = Constants.bFAILURE;
    try {
        BufferedOutputStream bufOut = null;
        BufferedInputStream bufIn = null;
        ZipEntry entry;
        ZipFile zipfile = new ZipFile(zipFileName);
        Enumeration e = zipfile.entries();
        while (e.hasMoreElements()) {
            entry = (ZipEntry) e.nextElement();
            if (!entry.getName().endsWith(fileName))
                continue;
            //Get file at root (in single directory) level. This is for License in root location.
            if (bFirstDirLevel && (entry.getName().indexOf('/') != entry.getName().lastIndexOf('/')))
                continue;
            bufIn = new BufferedInputStream(zipfile.getInputStream(entry));
            int count;
            byte data[] = new byte[Constants.BUFFER];
            String strOutFileName = strDestLoc == null ? entry.getName() : strDestLoc + "/" + fileName;
            FileOutputStream fos = new FileOutputStream(strOutFileName);
            bufOut = new BufferedOutputStream(fos, Constants.BUFFER);
            while ((count = bufIn.read(data, 0, Constants.BUFFER)) != -1) {
                bufOut.write(data, 0, count);
            }
            bufOut.flush();
            bufOut.close();
            bufIn.close();
            bRetCode = Constants.bSUCCESS;
            break;
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return bRetCode;
}

---

From source file:moskitt4me.repositoryClient.core.util.RepositoryClientUtil.java

public static void extractZipFile(String folder, String zipName) throws Exception {

    ZipFile zipFile = new ZipFile(new File(folder + "/" + zipName));

    Enumeration entries = zipFile.entries();

    while (entries.hasMoreElements()) {
        Object obj = entries.nextElement();
        if (obj instanceof ZipEntry) {
            ZipEntry entry = (ZipEntry) obj;

            InputStream eis = zipFile.getInputStream(entry);
            byte[] buffer = new byte[1024];
            int bytesRead = 0;

            File f = new File(folder + "/" + entry.getName());

            if (entry.isDirectory()) {
                f.mkdirs();//from ww w. ja v a 2s  .co m
                eis.close();
                continue;
            } else {
                f.getParentFile().mkdirs();
                f.createNewFile();
            }

            FileOutputStream fos = new FileOutputStream(f);

            while ((bytesRead = eis.read(buffer)) != -1) {
                fos.write(buffer, 0, bytesRead);
            }

            if (eis != null) {
                eis.close();
            }

            if (fos != null) {
                fos.close();
            }
        }
    }

    zipFile.close();
}

---

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