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.canova.api.util.ArchiveUtils.java

/**
 * Extracts files to the specified destination
 * @param file the file to extract to/*from   w w  w  . jav  a 2 s .  c o m*/
 * @param dest the destination directory
 * @throws java.io.IOException
 */
public static void unzipFileTo(String file, String dest) throws IOException {
    File target = new File(file);
    if (!target.exists())
        throw new IllegalArgumentException("Archive doesnt exist");
    FileInputStream fin = new FileInputStream(target);
    int BUFFER = 2048;
    byte data[] = new byte[BUFFER];

    if (file.endsWith(".zip")) {
        //getFromOrigin the zip file content
        ZipInputStream zis = new ZipInputStream(fin);
        //getFromOrigin the zipped file list entry
        ZipEntry ze = zis.getNextEntry();

        while (ze != null) {
            String fileName = ze.getName();

            File newFile = new File(dest + File.separator + fileName);

            if (ze.isDirectory()) {
                newFile.mkdirs();
                zis.closeEntry();
                ze = zis.getNextEntry();
                continue;
            }

            log.info("file unzip : " + newFile.getAbsoluteFile());

            //create all non exists folders
            //else you will hit FileNotFoundException for compressed folder

            FileOutputStream fos = new FileOutputStream(newFile);

            int len;
            while ((len = zis.read(data)) > 0) {
                fos.write(data, 0, len);
            }

            fos.flush();
            fos.close();
            zis.closeEntry();
            ze = zis.getNextEntry();
        }

        zis.close();

    }

    else if (file.endsWith(".tar")) {

        BufferedInputStream in = new BufferedInputStream(fin);
        TarArchiveInputStream tarIn = new TarArchiveInputStream(in);

        TarArchiveEntry entry = null;

        /** Read the tar entries using the getNextEntry method **/

        while ((entry = (TarArchiveEntry) tarIn.getNextEntry()) != null) {

            log.info("Extracting: " + entry.getName());

            /** If the entry is a directory, createComplex the directory. **/

            if (entry.isDirectory()) {

                File f = new File(dest + File.separator + entry.getName());
                f.mkdirs();
            }
            /**
             * If the entry is a file,write the decompressed file to the disk
             * and close destination stream.
             **/
            else {
                int count;

                FileOutputStream fos = new FileOutputStream(dest + File.separator + entry.getName());
                BufferedOutputStream destStream = new BufferedOutputStream(fos, BUFFER);
                while ((count = tarIn.read(data, 0, BUFFER)) != -1) {
                    destStream.write(data, 0, count);
                }

                destStream.flush();
                ;

                IOUtils.closeQuietly(destStream);
            }
        }

        /** Close the input stream **/

        tarIn.close();
    }

    else if (file.endsWith(".tar.gz") || file.endsWith(".tgz")) {

        BufferedInputStream in = new BufferedInputStream(fin);
        GzipCompressorInputStream gzIn = new GzipCompressorInputStream(in);
        TarArchiveInputStream tarIn = new TarArchiveInputStream(gzIn);

        TarArchiveEntry entry = null;

        /** Read the tar entries using the getNextEntry method **/

        while ((entry = (TarArchiveEntry) tarIn.getNextEntry()) != null) {

            log.info("Extracting: " + entry.getName());

            /** If the entry is a directory, createComplex the directory. **/

            if (entry.isDirectory()) {

                File f = new File(dest + File.separator + entry.getName());
                f.mkdirs();
            }
            /**
             * If the entry is a file,write the decompressed file to the disk
             * and close destination stream.
             **/
            else {
                int count;

                FileOutputStream fos = new FileOutputStream(dest + File.separator + entry.getName());
                BufferedOutputStream destStream = new BufferedOutputStream(fos, BUFFER);
                while ((count = tarIn.read(data, 0, BUFFER)) != -1) {
                    destStream.write(data, 0, count);
                }

                destStream.flush();

                IOUtils.closeQuietly(destStream);
            }
        }

        /** Close the input stream **/

        tarIn.close();
    }

    else if (file.endsWith(".gz")) {
        GZIPInputStream is2 = new GZIPInputStream(fin);
        File extracted = new File(target.getParent(), target.getName().replace(".gz", ""));
        if (extracted.exists())
            extracted.delete();
        extracted.createNewFile();
        OutputStream fos = FileUtils.openOutputStream(extracted);
        IOUtils.copyLarge(is2, fos);
        is2.close();
        fos.flush();
        fos.close();
    }

}

---

From source file:org.jahia.test.utils.TestHelper.java

public static JahiaSite createSite(String name, String serverName, String templateSet, String prepackedZIPFile,
        String siteZIPName, String[] modulesToDeploy) throws Exception {
    modulesToDeploy = (modulesToDeploy == null) ? new String[0] : modulesToDeploy;

    JahiaUser admin = JahiaAdminUser.getAdminUser(null);

    JahiaSitesService service = ServicesRegistry.getInstance().getJahiaSitesService();
    JahiaSite site = service.getSiteByKey(name);

    if (site != null) {
        service.removeSite(site);//from   w  w  w. j  ava 2  s.  c  o  m
    }
    File siteZIPFile = null;
    File sharedZIPFile = null;
    try {
        if (!StringUtils.isEmpty(prepackedZIPFile)) {
            ZipInputStream zis = null;
            OutputStream os = null;
            try {
                zis = new ZipInputStream(new FileInputStream(new File(prepackedZIPFile)));
                ZipEntry z = null;
                while ((z = zis.getNextEntry()) != null) {
                    if (siteZIPName.equalsIgnoreCase(z.getName()) || "users.zip".equals(z.getName())) {
                        File zipFile = File.createTempFile("import", ".zip");
                        os = new FileOutputStream(zipFile);
                        byte[] buf = new byte[4096];
                        int r;
                        while ((r = zis.read(buf)) > 0) {
                            os.write(buf, 0, r);
                        }
                        os.close();
                        if ("users.zip".equals(z.getName())) {
                            sharedZIPFile = zipFile;
                        } else {
                            siteZIPFile = zipFile;
                        }
                    }
                }
            } catch (IOException e) {
                logger.error(e.getMessage(), e);
            } finally {
                if (os != null) {
                    try {
                        os.close();
                    } catch (IOException e) {
                        logger.error(e.getMessage(), e);
                    }
                }
                if (zis != null) {
                    try {
                        zis.close();
                    } catch (IOException e) {
                        logger.error(e.getMessage(), e);
                    }
                }
            }
        }
        if (sharedZIPFile != null) {
            try {
                ImportExportBaseService.getInstance().importSiteZip(
                        sharedZIPFile != null ? new FileSystemResource(sharedZIPFile) : null, null, null);
            } catch (RepositoryException e) {
                logger.warn("shared.zip could not be imported", e);
            }
        }
        if (templateSet != null) {
            site = service.addSite(admin, name, serverName, name, name,
                    SettingsBean.getInstance().getDefaultLocale(), templateSet, modulesToDeploy,
                    siteZIPFile == null ? "noImport" : "fileImport",
                    siteZIPFile != null ? new FileSystemResource(siteZIPFile) : null, null, false, false, null);
        } else {
            site = addSiteWithoutTemplates(admin, name, serverName,
                    SettingsBean.getInstance().getDefaultLocale());
        }
        site = service.getSiteByKey(name);
    } finally {
        if (sharedZIPFile != null) {
            sharedZIPFile.delete();
        }
        if (siteZIPFile != null) {
            siteZIPFile.delete();
        }
    }

    return site;
}

---

From source file:com.oeg.oops.VocabUtils.java

/**
 * Code to unzip a file. Inspired from//from w w w.ja  va  2 s .  c om
 * http://www.mkyong.com/java/how-to-decompress-files-from-a-zip-file/
 * Taken from
 * @param resourceName
 * @param outputFolder
 */
public static void unZipIt(String resourceName, String outputFolder) {

    byte[] buffer = new byte[1024];

    try {
        ZipInputStream zis = new ZipInputStream(VocabUtils.class.getResourceAsStream(resourceName));
        ZipEntry ze = zis.getNextEntry();

        while (ze != null) {

            String fileName = ze.getName();
            File newFile = new File(outputFolder + File.separator + fileName);
            System.out.println("file unzip : " + newFile.getAbsoluteFile());
            if (ze.isDirectory()) {
                String temp = newFile.getAbsolutePath();
                new File(temp).mkdirs();
            } else {
                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();

    } catch (IOException ex) {
        System.err.println("Error while extracting the reosurces: " + ex.getMessage());
    }
}

---

From source file:com.ecofactor.qa.automation.platform.util.FileUtil.java

/**
 * Un zip a file to a destination folder.
 * @param zipFile the zip file//from  ww w.jav a2s .c om
 * @param outputFolder the output folder
 */
public static void unZipFile(final String zipFile, final String outputFolder) {

    LogUtil.setLogString("UnZip the File", true);
    final byte[] buffer = new byte[1024];
    int len;
    try {
        // create output directory is not exists
        final File folder = new File(outputFolder);
        if (!folder.exists()) {
            folder.mkdir();
        }
        // get the zip file content
        final ZipInputStream zis = new ZipInputStream(new FileInputStream(zipFile));
        final StringBuilder outFolderPath = new StringBuilder();
        final StringBuilder fileLogPath = new StringBuilder();
        ZipEntry zipEntry;
        while ((zipEntry = zis.getNextEntry()) != null) {
            final String fileName = zipEntry.getName();
            final File newFile = new File(
                    outFolderPath.append(outputFolder).append(File.separator).append(fileName).toString());
            LogUtil.setLogString(
                    fileLogPath.append("file unzip : ").append(newFile.getAbsoluteFile()).toString(), true);
            // create all non exists folders
            // else you will hit FileNotFoundException for compressed folder
            new File(newFile.getParent()).mkdirs();
            final FileOutputStream fos = new FileOutputStream(newFile);

            while ((len = zis.read(buffer)) > 0) {
                fos.write(buffer, 0, len);
            }
            fos.close();
            fileLogPath.setLength(0);
            outFolderPath.setLength(0);
        }

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

        LogUtil.setLogString("Done", true);

    } catch (IOException ex) {
        LOGGER.error("Error in unzip file", ex);
    }
}

---

From source file:org.deegree.commons.utils.io.Zip.java

public static void unzip(final InputStream in, File dir, boolean overwrite)
        throws FileNotFoundException, IOException {
    ZipInputStream zin = new ZipInputStream(in);
    ZipEntry entry;//from   w  w  w  . j a  v  a2 s  . c om

    if (!dir.exists()) {
        dir.mkdir();
    }

    boolean rootRead = false;

    while ((entry = zin.getNextEntry()) != null) {
        if (entry.isDirectory()) {
            File f = new File(dir, entry.getName());
            // avoid directory-in-directory
            if (!rootRead) {
                if (f.getName().equals(dir.getName())) {
                    dir = dir.getParentFile();
                }
            }
            rootRead = true;
            f.mkdir();
            continue;
        }

        File f = new File(dir, entry.getName());

        if (f.exists() && !overwrite) {
            LOG.debug("Not overwriting {}.", f);
            continue;
        }

        byte[] bs = new byte[16384];
        File parent = f.getAbsoluteFile().getParentFile();
        parent.mkdirs();
        FileOutputStream out = new FileOutputStream(f);
        int read;
        while ((read = zin.read(bs)) != -1) {
            out.write(bs, 0, read);
        }
        out.close();
    }

    in.close();
}

---

From source file:net.minecraftforge.fml.common.asm.transformers.MarkerTransformer.java

private static void processJar(File inFile, File outFile, MarkerTransformer[] transformers) throws IOException {
    ZipInputStream inJar = null;
    ZipOutputStream outJar = null;

    try {//w w  w.  j av  a2 s.  c  om
        try {
            inJar = new ZipInputStream(new BufferedInputStream(new FileInputStream(inFile)));
        } catch (FileNotFoundException e) {
            throw new FileNotFoundException("Could not open input file: " + e.getMessage());
        }

        try {
            outJar = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(outFile)));
        } catch (FileNotFoundException e) {
            throw new FileNotFoundException("Could not open output file: " + e.getMessage());
        }

        ZipEntry entry;
        while ((entry = inJar.getNextEntry()) != null) {
            if (entry.isDirectory()) {
                outJar.putNextEntry(entry);
                continue;
            }

            byte[] data = new byte[4096];
            ByteArrayOutputStream entryBuffer = new ByteArrayOutputStream();

            int len;
            do {
                len = inJar.read(data);
                if (len > 0) {
                    entryBuffer.write(data, 0, len);
                }
            } while (len != -1);

            byte[] entryData = entryBuffer.toByteArray();

            String entryName = entry.getName();

            if (entryName.endsWith(".class") && !entryName.startsWith(".")) {
                ClassNode cls = new ClassNode();
                ClassReader rdr = new ClassReader(entryData);
                rdr.accept(cls, 0);
                String name = cls.name.replace('/', '.').replace('\\', '.');

                for (MarkerTransformer trans : transformers) {
                    entryData = trans.transform(name, name, entryData);
                }
            }

            ZipEntry newEntry = new ZipEntry(entryName);
            outJar.putNextEntry(newEntry);
            outJar.write(entryData);
        }
    } finally {
        IOUtils.closeQuietly(outJar);
        IOUtils.closeQuietly(inJar);
    }
}

---

From source file:org.jjdltc.cordova.plugin.zip.decompressZip.java

/**
 * Extracts a file//from ww  w.j a v a 2s .  co m
 * @param zipIn
 * @param filePath
 * @throws IOException
 */
private void extractFile(ZipInputStream zipFl, String filePath) throws IOException {
    BufferedOutputStream buffer = new BufferedOutputStream(new FileOutputStream(filePath));
    byte[] bytesIn = new byte[this.BUFFER_SIZE];
    int read = 0;
    while ((read = zipFl.read(bytesIn)) != -1) {
        buffer.write(bytesIn, 0, read);
    }
    buffer.close();
}

---

From source file:org.renjin.primitives.files.Files.java

/**
 * Helper function to extract a zip entry to the given folder.
 *//*from   w  ww . j  a v a2 s . co  m*/
private static void unzipExtract(ZipInputStream zin, ZipEntry entry, FileObject exdir, boolean junkpaths,
        boolean overwrite) throws IOException {
    if (junkpaths) {
        throw new EvalException("unzip(junpaths=false) not yet implemented");
    }

    FileObject exfile = exdir.resolveFile(entry.getName());
    if (exfile.exists() && !overwrite) {
        throw new EvalException("file to be extracted '%s' already exists", exfile.getName().getURI());
    }
    OutputStream out = exfile.getContent().getOutputStream();
    try {

        byte buffer[] = new byte[64 * 1024];
        int bytesRead;
        while ((bytesRead = zin.read(buffer)) != -1) {
            out.write(buffer, 0, bytesRead);
        }
    } finally {
        out.close();
    }
}

---

From source file:Main.java

private static File unzip(Context context, InputStream in) throws IOException {
    File tmpDb = null;/*from   w  w w  . j  a  v a 2  s  . c o  m*/
    int dbFiles = 0;
    try {
        tmpDb = File.createTempFile("import", ".db");

        ZipInputStream zin = new ZipInputStream(in);
        ZipEntry sourceEntry;
        while (true) {

            sourceEntry = zin.getNextEntry();

            if (sourceEntry == null) {
                break;
            }

            if (sourceEntry.isDirectory()) {
                zin.closeEntry();
                continue;
            }

            FileOutputStream fOut;
            if (sourceEntry.getName().endsWith(".db")) {
                // Write database to tmp file
                fOut = new FileOutputStream(tmpDb);
                dbFiles++;
            } else {
                // Write all other files(images) to files dir in apps data
                int start = sourceEntry.getName().lastIndexOf("/") + 1;
                String name = sourceEntry.getName().substring(start);
                fOut = context.openFileOutput(name, Context.MODE_PRIVATE);
            }

            final OutputStream targetStream = fOut;
            try {
                int read;
                while (true) {
                    byte[] buffer = new byte[1024];
                    read = zin.read(buffer);
                    if (read == -1) {
                        break;
                    }
                    targetStream.write(buffer, 0, read);
                }
                targetStream.flush();
            } finally {
                safeCloseClosable(targetStream);
            }
            zin.closeEntry();
        }
    } finally {
        safeCloseClosable(in);
    }
    if (dbFiles != 1) {
        throw new IllegalStateException("Input file is not a valid backup");
    }
    return tmpDb;
}

---

From source file:jeffaschenk.tomcat.instance.generator.builders.TomcatInstanceBuilderHelper.java

/**
 * Extracts a zip entry (file entry)//  w  w w. j  ava2s  .com
 *
 * @param zipIn
 * @param filePath
 * @throws IOException
 */
protected static void extractFile(GenerationLogger GENERATION_LOGGER, ZipInputStream zipIn, String filePath)
        throws IOException {
    BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath));
    byte[] bytesIn = new byte[4096];
    int read = 0;
    while ((read = zipIn.read(bytesIn)) != -1) {
        bos.write(bytesIn, 0, read);
    }
    bos.close();
    GENERATION_LOGGER.debug("Extracted zip Entry: " + filePath);
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• »