Example usage for java.util.zip ZipInputStream ZipInputStream

Introduction

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

Prototype

public ZipInputStream(InputStream in) 

Source Link

Document

Creates a new ZIP input stream.

Usage

From source file:ZipHandler.java

/**
 * unzipps a zip file placed at <zipURL> to path <xmlURL>
 * @param zipURL/*from   ww  w  .j  a  va2  s  . com*/
 * @param xmlURL
 */
public static void unZip(String zipURL, String xmlURL) throws IOException {
    FileOutputStream fosBLOB = new FileOutputStream(new File("c:\\"));
    FileOutputStream fosCLOB = new FileOutputStream(new File("c:\\"));
    FileInputStream fis = new FileInputStream(new File(zipURL));
    ZipInputStream zis = new ZipInputStream(fis);
    FileOutputStream fos = new FileOutputStream(xmlURL);
    ZipEntry ze = zis.getNextEntry();
    ExtractZip(zis, fos, fosBLOB, fosCLOB, ze);
    ze = zis.getNextEntry();
    ExtractZip(zis, fos, fosBLOB, fosCLOB, ze);
    ze = zis.getNextEntry();
    ExtractZip(zis, fos, fosBLOB, fosCLOB, ze);
    fos.flush();
    fis.close();
    fos.close();
    fosCLOB.close();
    fosBLOB.close();
    zis.close();
}

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From source file:com.sangupta.jerry.util.ZipUtils.java

/**
 * Read a given file from the ZIP file and store it in a temporary file. The
 * temporary file is set to be deleted on exit of application.
 * //w  w  w.ja  v  a 2 s  .  com
 * @param zipFile
 *            the zip file from which the file needs to be read
 * 
 * @param fileName
 *            the name of the file that needs to be extracted
 * 
 * @return the {@link File} handle for the extracted file in the temp
 *         directory
 * 
 * @throws IllegalArgumentException
 *             if the zipFile is <code>null</code> or the fileName is
 *             <code>null</code> or empty.
 */
public static File readFileFromZip(File zipFile, String fileName) throws FileNotFoundException, IOException {
    if (zipFile == null) {
        throw new IllegalArgumentException("zip file to extract from cannot be null");
    }

    if (AssertUtils.isEmpty(fileName)) {
        throw new IllegalArgumentException("the filename to extract cannot be null/empty");
    }

    LOGGER.debug("Reading {} from {}", fileName, zipFile.getAbsolutePath());

    ZipInputStream stream = null;
    BufferedOutputStream outStream = null;
    File tempFile = null;

    try {
        byte[] buf = new byte[1024];
        stream = new ZipInputStream(new FileInputStream(zipFile));
        ZipEntry entry;
        while ((entry = stream.getNextEntry()) != null) {
            String entryName = entry.getName();
            if (entryName.equals(fileName)) {
                tempFile = File.createTempFile(FilenameUtils.getName(entryName),
                        FilenameUtils.getExtension(entryName));
                tempFile.deleteOnExit();

                outStream = new BufferedOutputStream(new FileOutputStream(tempFile));
                int readBytes;
                while ((readBytes = stream.read(buf, 0, 1024)) > -1) {
                    outStream.write(buf, 0, readBytes);
                }

                stream.close();
                outStream.close();

                return tempFile;
            }
        }
    } finally {
        IOUtils.closeQuietly(stream);
        IOUtils.closeQuietly(outStream);
    }

    return tempFile;
}

---

From source file:com.seer.datacruncher.streams.ZipStreamTest.java

@Test
public void testZipStream() {
    String fileName = properties.getProperty("zip_test_stream_file_name");
    InputStream in = this.getClass().getClassLoader().getResourceAsStream(stream_file_path + fileName);
    byte[] arr = null;
    try {/*from www. j  a va  2  s.c  o  m*/
        arr = IOUtils.toByteArray(in);
    } catch (IOException e) {
        assertTrue("IOException while Zip test file reading", false);
    }

    ZipInputStream inStream = null;
    try {
        inStream = new ZipInputStream(new ByteArrayInputStream(arr));
        ZipEntry entry;
        while (!(isStreamClose(inStream)) && (entry = inStream.getNextEntry()) != null) {
            if (!entry.isDirectory()) {
                DatastreamsInput datastreamsInput = new DatastreamsInput();
                datastreamsInput.setUploadedFileName(entry.getName());
                byte[] byteInput = IOUtils.toByteArray(inStream);
                String res = datastreamsInput.datastreamsInput(null, (Long) schemaEntity.getIdSchema(),
                        byteInput, true);
                assertTrue("Zip file validation failed", Boolean.parseBoolean(res));
            }
            inStream.closeEntry();
        }
    } catch (IOException ex) {
        assertTrue("Error occured during fetch records from ZIP file.", false);
    } finally {
        if (in != null)
            try {
                in.close();
            } catch (IOException e) {
            }
    }
}

---

From source file:com.ibm.jaggr.core.util.ZipUtil.java

/**
 * Extracts the specified zip file to the specified location. If {@code selector} is specified,
 * then only the entry specified by {@code selector} (if {@code selector} is a filename) or the
 * contents of the directory specified by {@code selector} (if {@code selector} is a directory
 * name) will be extracted. If {@code selector} specifies a directory, then the contents of the
 * directory in the zip file will be rooted at {@code destDir} when extracted.
 *
 * @param zipFile//w w w  .  jav a  2 s .co  m
 *            the {@link File} object for the file to unzip
 * @param destDir
 *            the {@link File} object for the target directory
 * @param selector
 *            The name of a file or directory to extract
 * @throws IOException
 */
public static void unzip(File zipFile, File destDir, String selector) throws IOException {
    final String sourceMethod = "unzip"; //$NON-NLS-1$
    final boolean isTraceLogging = log.isLoggable(Level.FINER);
    if (isTraceLogging) {
        log.entering(sourceClass, sourceMethod, new Object[] { zipFile, destDir });
    }

    boolean selectorIsFolder = selector != null && selector.charAt(selector.length() - 1) == '/';
    ZipInputStream zipIn = new ZipInputStream(new FileInputStream(zipFile));
    try {
        ZipEntry entry = zipIn.getNextEntry();
        // iterates over entries in the zip file
        while (entry != null) {
            String entryName = entry.getName();
            if (selector == null || !selectorIsFolder && entryName.equals(selector) || selectorIsFolder
                    && entryName.startsWith(selector) && entryName.length() != selector.length()) {
                if (selector != null) {
                    if (selectorIsFolder) {
                        // selector is a directory.  Strip selected path
                        entryName = entryName.substring(selector.length());
                    } else {
                        // selector is a filename.  Extract the filename portion of the path
                        int idx = entryName.lastIndexOf("/"); //$NON-NLS-1$
                        if (idx != -1) {
                            entryName = entryName.substring(idx + 1);
                        }
                    }
                }
                File file = new File(destDir, entryName.replace("/", File.separator)); //$NON-NLS-1$
                if (!entry.isDirectory()) {
                    // if the entry is a file, extract it
                    extractFile(entry, zipIn, file);
                } else {
                    // if the entry is a directory, make the directory
                    extractDirectory(entry, file);
                }
                zipIn.closeEntry();
            }
            entry = zipIn.getNextEntry();
        }
    } finally {
        zipIn.close();
    }

    if (isTraceLogging) {
        log.exiting(sourceClass, sourceMethod);
    }
}

---

From source file:com.matze5800.paupdater.Functions.java

public static void addFilesToExistingZip(File zipFile, File[] files) throws IOException {
    File tempFile = new File(Environment.getExternalStorageDirectory() + "/pa_updater", "temp_kernel.zip");
    tempFile.delete();/*from   ww w  . jav  a 2  s.c  o  m*/

    boolean renameOk = zipFile.renameTo(tempFile);
    if (!renameOk) {
        throw new RuntimeException(
                "could not rename the file " + zipFile.getAbsolutePath() + " to " + tempFile.getAbsolutePath());
    }
    byte[] buf = new byte[1024];

    ZipInputStream zin = new ZipInputStream(new FileInputStream(tempFile));
    ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFile));

    ZipEntry entry = zin.getNextEntry();
    while (entry != null) {
        String name = entry.getName();
        boolean notInFiles = true;
        for (File f : files) {
            if (f.getName().equals(name)) {
                notInFiles = false;
                break;
            }
        }
        if (notInFiles) {

            out.putNextEntry(new ZipEntry(name));

            int len;
            while ((len = zin.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
        }
        entry = zin.getNextEntry();
    }
    zin.close();

    for (int i = 0; i < files.length; i++) {
        InputStream in = new FileInputStream(files[i]);
        out.putNextEntry(new ZipEntry(files[i].getName()));

        int len;
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
        out.closeEntry();
        in.close();
    }
    out.close();
    tempFile.delete();
}

---

From source file:com.wso2mobile.mam.packageExtractor.ZipFileReading.java

public String readAndroidManifestFile(String filePath) {
    String xml = "";
    try {/*from w w w  .  j av a2  s .  co m*/
        ZipInputStream stream = new ZipInputStream(new FileInputStream(filePath));
        try {
            ZipEntry entry;
            while ((entry = stream.getNextEntry()) != null) {
                if (entry.getName().equals("AndroidManifest.xml")) {
                    StringBuilder builder = new StringBuilder();
                    xml = AndroidXMLParsing.decompressXML(IOUtils.toByteArray(stream));
                }
            }
        } finally {
            stream.close();
        }
        Document doc = loadXMLFromString(xml);
        doc.getDocumentElement().normalize();
        JSONObject obj = new JSONObject();
        obj.put("version", doc.getDocumentElement().getAttribute("versionName"));
        obj.put("package", doc.getDocumentElement().getAttribute("package"));
        xml = obj.toJSONString();
    } catch (Exception e) {
        xml = "Exception occured " + e;
    }
    return xml;
}

---

From source file:be.fedict.eid.dss.document.zip.ZIPSignatureOutputStream.java

@Override
public void close() throws IOException {
    super.close();

    byte[] signatureData = toByteArray();

    /*//from  w ww.j a v a2 s. c  o  m
     * Copy the original ZIP content.
     */
    ZipOutputStream zipOutputStream = new ZipOutputStream(this.targetOutputStream);
    ZipInputStream zipInputStream = new ZipInputStream(new FileInputStream(this.originalZipFile));
    ZipEntry zipEntry;
    while (null != (zipEntry = zipInputStream.getNextEntry())) {
        if (!zipEntry.getName().equals(ODFUtil.SIGNATURE_FILE)) {
            ZipEntry newZipEntry = new ZipEntry(zipEntry.getName());
            zipOutputStream.putNextEntry(newZipEntry);
            LOG.debug("copying " + zipEntry.getName());
            IOUtils.copy(zipInputStream, zipOutputStream);
        }
    }
    zipInputStream.close();

    /*
     * Add the XML signature file to the ZIP package.
     */
    zipEntry = new ZipEntry(ODFUtil.SIGNATURE_FILE);
    LOG.debug("writing " + zipEntry.getName());
    zipOutputStream.putNextEntry(zipEntry);
    IOUtils.write(signatureData, zipOutputStream);
    zipOutputStream.close();
}

---

From source file:com.javacreed.examples.lang.DynamicClassLoader.java

public void loadJar(final InputStream in) throws IOException {
    try (BufferedInputStream bis = new BufferedInputStream(in); ZipInputStream zis = new ZipInputStream(bis)) {
        for (ZipEntry ze = zis.getNextEntry(); ze != null; ze = zis.getNextEntry()) {
            if (ze.isDirectory()) {
                continue;
            }//from w ww .j ava  2 s.  c o m

            final String name = ze.getName();
            final String canonicalName = StringUtils.removeEnd(name, ".class").replaceAll("[\\/]", ".");
            final byte[] classBytes = IOUtils.toByteArray(zis);
            if (loadedClasses.putIfAbsent(canonicalName, classBytes) == null) {
                DynamicClassLoader.LOGGER.debug("Loading class: {} of {} bytes", canonicalName,
                        classBytes.length);
            } else {
                DynamicClassLoader.LOGGER.debug("Skipping class: {} of {} bytes as onle already exists",
                        canonicalName, classBytes.length);
            }
        }
    }
}

---

From source file:org.eclipse.skalli.model.ext.maven.internal.GitBlitMavenPomResolver.java

@Override
protected InputStream asPomInputStream(HttpEntity entity, String relativePath) throws IOException {
    ZipInputStream zipInputStream = new ZipInputStream(entity.getContent());
    return ZipHelper.getEntry(zipInputStream, getPomFileName(relativePath));
}

---

From source file:com.jadarstudios.rankcapes.forge.cape.CapePack.java

/**
 * Parses the Zip file in memory./*from www  .  j a  va2  s. c  om*/
 *
 * @param input the bytes of a valid zip file
 */
private void parsePack(byte[] input) {
    try {
        ZipInputStream zipInput = new ZipInputStream(new ByteArrayInputStream(input));

        String metadata = "";

        ZipEntry entry;
        while ((entry = zipInput.getNextEntry()) != null) {
            String name = entry.getName();

            if (name.endsWith(".png")) {
                // remove file extension from the name.
                name = FilenameUtils.removeExtension(name);

                StaticCape cape = this.loadCape(name, zipInput);
                this.unprocessedCapes.put(name, cape);
            } else if (name.endsWith(".mcmeta")) {
                // parses the pack metadata.
                InputStreamReader streamReader = new InputStreamReader(zipInput);
                while (streamReader.ready()) {
                    metadata += (char) streamReader.read();
                }
            }
        }
        if (!Strings.isNullOrEmpty(metadata)) {
            this.parsePackMetadata(StringUtils.remove(metadata, (char) 65535));
        } else {
            RankCapesForge.log.warn("Cape Pack metadata is missing!");
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

---

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