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.freebxml.omar.common.Utility.java

/**
 *
 * Extracts Zip file contents relative to baseDir
 * @return An ArrayList containing the File instances for each unzipped file
 *//*from   w w w  . j a  v  a  2 s.c o m*/
public static ArrayList unZip(String baseDir, InputStream is) throws IOException {
    ArrayList files = new ArrayList();
    ZipInputStream zis = new ZipInputStream(is);

    while (true) {
        // Get the next zip entry.  Break out of the loop if there are
        //   no more.
        ZipEntry zipEntry = zis.getNextEntry();
        if (zipEntry == null)
            break;

        String entryName = zipEntry.getName();
        if (FILE_SEPARATOR.equalsIgnoreCase("\\")) {
            // Convert '/' to Windows file separator
            entryName = entryName.replaceAll("/", "\\\\");
        }
        String fileName = baseDir + FILE_SEPARATOR + entryName;
        //Make sure that directory exists.
        String dirName = fileName.substring(0, fileName.lastIndexOf(FILE_SEPARATOR));
        File dir = new File(dirName);
        dir.mkdirs();

        //Entry could be a directory
        if (!(zipEntry.isDirectory())) {
            //Entry is a file not a directory.
            //Write out the content of of entry to file 
            File file = new File(fileName);
            files.add(file);
            FileOutputStream fos = new FileOutputStream(file);

            // Read data from the zip entry.  The read() method will return
            //   -1 when there is no more data to read.
            byte[] buffer = new byte[1000];

            int n;

            while ((n = zis.read(buffer)) > -1) {
                // In real life, you'd probably write the data to a file.
                fos.write(buffer, 0, n);
            }
            zis.closeEntry();
            fos.close();
        } else {
            zis.closeEntry();
        }
    }

    zis.close();

    return files;
}

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From source file:org.pentaho.di.job.entries.hadooptransjobexecutor.DistributedCacheUtil.java

/**
 * Extract a zip archive to a directory.
 *
 * @param archive Zip archive to extract
 * @param dest    Destination directory. This must not exist!
 * @return Directory the zip was extracted into
 * @throws IllegalArgumentException when the archive file does not exist or the destination directory already exists
 * @throws IOException/* w  w  w .  ja v a 2  s  .  c  o m*/
 * @throws KettleFileException
 */
public FileObject extract(FileObject archive, FileObject dest) throws IOException, KettleFileException {
    if (!archive.exists()) {
        throw new IllegalArgumentException("archive does not exist: " + archive.getURL().getPath());
    }

    if (dest.exists()) {
        throw new IllegalArgumentException("destination already exists");
    }
    dest.createFolder();

    try {
        byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
        int len = 0;
        ZipInputStream zis = new ZipInputStream(archive.getContent().getInputStream());
        try {
            ZipEntry ze;
            while ((ze = zis.getNextEntry()) != null) {
                FileObject entry = KettleVFS.getFileObject(dest + Const.FILE_SEPARATOR + ze.getName());

                if (ze.isDirectory()) {
                    entry.createFolder();
                    continue;
                }

                OutputStream os = KettleVFS.getOutputStream(entry, false);
                try {
                    while ((len = zis.read(buffer)) > 0) {
                        os.write(buffer, 0, len);
                    }
                } finally {
                    if (os != null) {
                        os.close();
                    }
                }
            }
        } finally {
            if (zis != null) {
                zis.close();
            }
        }
    } catch (Exception ex) {
        // Try to clean up the temp directory and all files
        if (!deleteDirectory(dest)) {
            throw new KettleFileException("Could not clean up temp dir after error extracting", ex);
        }
        throw new KettleFileException("error extracting archive", ex);
    }

    return dest;
}

---

From source file:org.jboss.dashboard.ui.resources.GraphicElement.java

/**
 * Unzip given stream to destination file.
 *
 * @param zin Stream to unzip.//from  ww  w  . j  a v a  2s.  co m
 * @param s   File name for destination.
 * @throws java.io.IOException in case there are errors in the stream.
 */
protected void unzip(ZipInputStream zin, String s, String resourcePath) throws IOException {
    File f = new File(s);
    File parent = new File(f.getParent());
    parent.mkdirs();
    FileOutputStream out = null;
    try {
        out = new FileOutputStream(s);
        out.write(getPrefixForResourcePath(resourcePath).getBytes());
        byte[] b = new byte[1024];
        int len;
        while ((len = zin.read(b)) != -1) {
            out.write(b, 0, len);
        }
        out.write(getSuffixForResourcePath(resourcePath).getBytes());
    } finally {
        if (out != null)
            out.close();
    }
}

---

From source file:org.chromium.APKPackager.java

private void extractToFolder(File zipfile, File tempdir) {
    InputStream inputStream = null;
    try {//from   www  . j  a  v  a  2  s . c  o  m
        FileInputStream zipStream = new FileInputStream(zipfile);
        inputStream = new BufferedInputStream(zipStream);
        ZipInputStream zis = new ZipInputStream(inputStream);
        inputStream = zis;

        ZipEntry ze;
        byte[] buffer = new byte[32 * 1024];

        while ((ze = zis.getNextEntry()) != null) {
            String compressedName = ze.getName();

            if (ze.isDirectory()) {
                File dir = new File(tempdir, compressedName);
                dir.mkdirs();
            } else {
                File file = new File(tempdir, compressedName);
                file.getParentFile().mkdirs();
                if (file.exists() || file.createNewFile()) {
                    FileOutputStream fout = new FileOutputStream(file);
                    int count;
                    while ((count = zis.read(buffer)) != -1) {
                        fout.write(buffer, 0, count);
                    }
                    fout.close();
                }
            }
            zis.closeEntry();
        }
    } catch (Exception e) {
        Log.e(LOG_TAG, "Unzip error ", e);
    } finally {
        if (inputStream != null) {
            try {
                inputStream.close();
            } catch (IOException e) {
            }
        }
    }
}

---

From source file:org.wso2.carbon.apimgt.hostobjects.TenantManagerHostObject.java

private static void deployTenantTheme(FileHostObject themeFile, String tenant) throws APIManagementException {
    ZipInputStream zis = null;
    byte[] buffer = new byte[1024];

    String outputFolder = TenantManagerHostObject.getStoreTenantThemesPath() + tenant;

    InputStream zipInputStream = null;
    try {//  w w w.j  a  v  a2  s  .c om
        zipInputStream = themeFile.getInputStream();
    } catch (ScriptException e) {
        handleException("Error occurred while deploying tenant theme file", e);
    }

    try {

        //create output directory if it is not exists
        File folder = new File(outputFolder);
        if (!folder.exists()) {
            if (!folder.mkdirs()) {
                handleException("Unable to create tenant theme directory");
            }
        }

        //get the zip file content
        zis = new ZipInputStream(zipInputStream);
        //get the zipped file list entry
        ZipEntry ze = zis.getNextEntry();
        String ext = null;

        while (ze != null) {

            String fileName = ze.getName();
            File newFile = new File(outputFolder + File.separator + fileName);
            if (ze.isDirectory()) {
                if (!newFile.exists()) {
                    boolean status = newFile.mkdir();
                    if (status) {
                        //todo handle exception
                    }
                }
            } else {
                ext = FilenameUtils.getExtension(ze.getName());
                if (TenantManagerHostObject.EXTENTION_WHITELIST.contains(ext)) {
                    //create all non exists folders
                    //else you will hit FileNotFoundException for compressed folder
                    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();
                } else {
                    log.warn("Unsupported file is uploaded with tenant theme by " + tenant + " : file name : "
                            + ze.getName());
                }

            }
            ze = zis.getNextEntry();
        }

        zis.closeEntry();
        zis.close();

    } catch (IOException ex) {
        handleException("Failed to deploy tenant theme", ex);
        //todo remove if the tenant theme directory is created.
    } finally {
        IOUtils.closeQuietly(zis);
        IOUtils.closeQuietly(zipInputStream);
    }
}

---

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

/**
 *
 * Extracts Zip file contents relative to baseDir
 * @return An ArrayList containing the File instances for each unzipped file
 *///from   w  ww .  j av  a2 s .  co  m
public static ArrayList<File> unZip(String baseDir, InputStream is) throws IOException {
    ArrayList<File> files = new ArrayList<File>();
    ZipInputStream zis = new ZipInputStream(is);

    while (true) {
        // Get the next zip entry.  Break out of the loop if there are
        //   no more.
        ZipEntry zipEntry = zis.getNextEntry();
        if (zipEntry == null)
            break;

        String entryName = zipEntry.getName();
        if (FILE_SEPARATOR.equalsIgnoreCase("\\")) {
            // Convert '/' to Windows file separator
            entryName = entryName.replaceAll("/", "\\\\");
        }
        String fileName = baseDir + FILE_SEPARATOR + entryName;
        //Make sure that directory exists.
        String dirName = fileName.substring(0, fileName.lastIndexOf(FILE_SEPARATOR));
        File dir = new File(dirName);
        dir.mkdirs();

        //Entry could be a directory
        if (!(zipEntry.isDirectory())) {
            //Entry is a file not a directory.
            //Write out the content of of entry to file 
            File file = new File(fileName);
            files.add(file);
            FileOutputStream fos = new FileOutputStream(file);

            // Read data from the zip entry.  The read() method will return
            //   -1 when there is no more data to read.
            byte[] buffer = new byte[1000];

            int n;

            while ((n = zis.read(buffer)) > -1) {
                // In real life, you'd probably write the data to a file.
                fos.write(buffer, 0, n);
            }
            zis.closeEntry();
            fos.close();
        } else {
            zis.closeEntry();
        }
    }

    zis.close();

    return files;
}

---

From source file:org.opennms.upgrade.api.AbstractOnmsUpgrade.java

/**
 * UNZIP a file./*from w ww.ja v a 2 s.c  o m*/
 *
 * @param zipFile the input ZIP file
 * @param outputFolder the output folder
 * @throws OnmsUpgradeException the OpenNMS upgrade exception
 */
protected void unzipFile(File zipFile, File outputFolder) throws OnmsUpgradeException {
    try {
        if (!outputFolder.exists()) {
            if (!outputFolder.mkdirs()) {
                LOG.warn("Could not make directory: {}", outputFolder.getPath());
            }
        }
        FileInputStream fis;
        byte[] buffer = new byte[1024];
        fis = new FileInputStream(zipFile);
        ZipInputStream zis = new ZipInputStream(fis);
        ZipEntry ze = zis.getNextEntry();
        while (ze != null) {
            String fileName = ze.getName();
            File newFile = new File(outputFolder, fileName);
            log("  Unzipping to %s\n", newFile.getAbsolutePath());
            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();
            zis.closeEntry();
            ze = zis.getNextEntry();
        }
        zis.closeEntry();
        zis.close();
        fis.close();
    } catch (Exception e) {
        throw new OnmsUpgradeException("Cannot UNZIP file because " + e.getMessage(), e);
    }
}

---

From source file:edu.harvard.mcz.dwcaextractor.DwCaExtractor.java

/**
 * Setup conditions to run.//from  w  ww . j  a  v  a2s  .  c  om
 * 
 * @param args command line arguments
 * @return true if setup was successful, false otherwise.
 */
protected boolean setup(String[] args) {
    boolean setupOK = false;
    CmdLineParser parser = new CmdLineParser(this);
    //parser.setUsageWidth(4096);
    try {
        parser.parseArgument(args);

        if (help) {
            parser.printUsage(System.out);
            System.exit(0);
        }

        if (archiveFilePath != null) {
            String filePath = archiveFilePath;
            logger.debug(filePath);
            File file = new File(filePath);
            if (!file.exists()) {
                // Error
                logger.error(filePath + " not found.");
            }
            if (!file.canRead()) {
                // error
                logger.error("Unable to read " + filePath);
            }
            if (file.isDirectory()) {
                // check if it is an unzipped dwc archive.
                dwcArchive = openArchive(file);
            }
            if (file.isFile()) {
                // unzip it
                File outputDirectory = new File(file.getName().replace(".", "_") + "_content");
                if (!outputDirectory.exists()) {
                    outputDirectory.mkdir();
                    try {
                        byte[] buffer = new byte[1024];
                        ZipInputStream inzip = new ZipInputStream(new FileInputStream(file));
                        ZipEntry entry = inzip.getNextEntry();
                        while (entry != null) {
                            String fileName = entry.getName();
                            File expandedFile = new File(outputDirectory.getPath() + File.separator + fileName);
                            new File(expandedFile.getParent()).mkdirs();
                            FileOutputStream expandedfileOutputStream = new FileOutputStream(expandedFile);
                            int len;
                            while ((len = inzip.read(buffer)) > 0) {
                                expandedfileOutputStream.write(buffer, 0, len);
                            }

                            expandedfileOutputStream.close();
                            entry = inzip.getNextEntry();
                        }
                        inzip.closeEntry();
                        inzip.close();
                        logger.debug("Unzipped archive into " + outputDirectory.getPath());
                    } catch (FileNotFoundException e) {
                        logger.error(e.getMessage());
                    } catch (IOException e) {
                        logger.error(e.getMessage(), e);
                    }
                }
                // look into the unzipped directory
                dwcArchive = openArchive(outputDirectory);
            }
            if (dwcArchive != null) {
                if (checkArchive()) {
                    // Check output 
                    csvPrinter = new CSVPrinter(new FileWriter(outputFilename, append),
                            CSVFormat.DEFAULT.withQuoteMode(QuoteMode.NON_NUMERIC));
                    // no exception thrown
                    setupOK = true;
                }
            } else {
                System.out.println("Problem opening archive.");
                logger.error("Unable to unpack archive file.");
            }
            logger.debug(setupOK);
        }

    } catch (CmdLineException e) {
        logger.error(e.getMessage());
        parser.printUsage(System.err);
    } catch (IOException e) {
        logger.error(e.getMessage());
        System.out.println(e.getMessage());
        parser.printUsage(System.err);
    }
    return setupOK;
}

---

From source file:se.bitcraze.crazyflielib.bootloader.Bootloader.java

public void unzip(File zipFile) {
    mLogger.debug("Trying to unzip " + zipFile + "...");
    InputStream fis = null;/*from   w w  w  . j  av a  2 s . c  o  m*/
    ZipInputStream zis = null;
    FileOutputStream fos = null;
    String parent = zipFile.getAbsoluteFile().getParent();

    try {
        fis = new FileInputStream(zipFile);
        zis = new ZipInputStream(new BufferedInputStream(fis));
        ZipEntry ze;
        while ((ze = zis.getNextEntry()) != null) {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            byte[] buffer = new byte[1024];
            int count;
            while ((count = zis.read(buffer)) != -1) {
                baos.write(buffer, 0, count);
            }
            String filename = ze.getName();
            byte[] bytes = baos.toByteArray();
            // write files
            File filePath = new File(parent + "/" + getFileNameWithoutExtension(zipFile) + "/" + filename);
            // create subdir
            filePath.getParentFile().mkdirs();
            fos = new FileOutputStream(filePath);
            fos.write(bytes);
            //check
            if (filePath.exists() && filePath.length() > 0) {
                mLogger.debug(filename + " successfully extracted to " + filePath.getAbsolutePath());
            } else {
                mLogger.error(filename + " was not extracted.");
            }
        }
    } catch (FileNotFoundException ffe) {
        mLogger.error(ffe.getMessage());
    } catch (IOException ioe) {
        mLogger.error(ioe.getMessage());
    } finally {
        if (zis != null) {
            try {
                zis.close();
            } catch (IOException e) {
                mLogger.error(e.getMessage());
            }
        }
        if (fos != null) {
            try {
                fos.close();
            } catch (IOException e) {
                mLogger.error(e.getMessage());
            }
        }

    }
}

---

From source file:org.dhatim.archive.Archive.java

/**
 * Add the entries from the supplied {@link ZipInputStream} to this archive instance.
 * @param zipStream The zip stream./*w  w w.  ja va2 s  .  c o  m*/
 * @return This archive instance.
 * @throws IOException Error reading zip stream.
 */
public Archive addEntries(ZipInputStream zipStream) throws IOException {
    AssertArgument.isNotNull(zipStream, "zipStream");

    try {
        ZipEntry zipEntry = zipStream.getNextEntry();
        ByteArrayOutputStream outByteStream = new ByteArrayOutputStream();
        byte[] byteReadBuffer = new byte[512];
        int byteReadCount;

        while (zipEntry != null) {
            if (zipEntry.isDirectory()) {
                addEntry(zipEntry.getName(), (byte[]) null);
            } else {
                while ((byteReadCount = zipStream.read(byteReadBuffer)) != -1) {
                    outByteStream.write(byteReadBuffer, 0, byteReadCount);
                }
                addEntry(zipEntry.getName(), outByteStream.toByteArray());
                outByteStream.reset();
            }
            zipEntry = zipStream.getNextEntry();
        }
    } finally {
        try {
            zipStream.close();
        } catch (IOException e) {
            logger.debug("Unexpected error closing EDI Mapping Model Zip stream.", e);
        }
    }

    return this;
}

---

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