Example usage for java.nio ByteBuffer wrap

Introduction

In this page you can find the example usage for java.nio ByteBuffer wrap.

Prototype

public static ByteBuffer wrap(byte[] array)

Source Link

Document

Creates a new byte buffer by wrapping the given byte array.

Usage

From source file:com.github.ambry.commons.BlobId.java

/**
 * Re-constructs existing blobId by deserializing from BlobId "string"
 *
 * @param id of Blob as output by BlobId.getID()
 * @param clusterMap of the cluster that the blob id belongs to
 * @throws IOException//from w  w w  .j a  v  a2 s  .  c  o  m
 */
public BlobId(String id, ClusterMap clusterMap) throws IOException {
    this(new DataInputStream(new ByteBufferInputStream(ByteBuffer.wrap(Base64.decodeBase64(id)))), clusterMap);
}

From source file:StreamUtility.java

/**
 * Converts little endian bytes to a long
 * @param value byte array to read//www  . j ava  2  s .  com
 * @return long value of the byte array
 */
public static long littleEndianToLong(byte[] value) {
    return ByteBuffer.wrap(value).order(ByteOrder.LITTLE_ENDIAN).getLong();
}

From source file:com.tc.simple.apn.factories.FeedbackFactory.java

public List<Feedback> createFeedback(InputStream in) {
    List<Feedback> list = new ArrayList<Feedback>();
    try {/* ww w .j a va2 s .co m*/

        byte[] byteMe = IOUtils.toByteArray(in);

        int startRange = 0;

        int endRange = 38; //38 byte chunks per feedback item.

        while (startRange < byteMe.length) {

            //init the value object to hold the feedback data.
            Feedback feedback = new Feedback();

            //build the item based on range
            byte[] item = Arrays.copyOfRange(byteMe, startRange, endRange);//38 byte chunks.

            byte[] date = Arrays.copyOfRange(item, 0, 4);

            byte[] size = Arrays.copyOfRange(item, 4, 6);

            byte[] token = Arrays.copyOfRange(item, 6, item.length);

            ByteBuffer dateWrap = ByteBuffer.wrap(date);

            ByteBuffer javaSize = ByteBuffer.wrap(size);

            //set the date (returns number of seconds from unix epoch date)
            feedback.setDate(new Date(dateWrap.getInt() * 1000L));

            //get the size of the token (should always be 32)
            feedback.setSize(javaSize.getShort());

            //drop in our encoded token (will be used as our key for marking the user's token doc as failed)
            feedback.setToken(String.valueOf(Hex.encodeHex(token)));

            //add it to our collection
            list.add(feedback);

            //increment the start range
            startRange = startRange + 38;

            //increment the end range.
            endRange = endRange + 38;

        }

    } catch (Exception e) {
        logger.log(Level.SEVERE, null, e);

    }

    return list;

}

From source file:de.brendamour.jpasskit.signing.PKPassTemplateFolder.java

@Override
public Map<String, ByteBuffer> getAllFiles() throws IOException {
    Map<String, ByteBuffer> allFiles = new HashMap<>();
    for (File file : new File(pathToTemplateDirectory).listFiles()) {
        byte[] byteArray = IOUtils.toByteArray(new FileInputStream(file));
        String filePath = file.getAbsolutePath().replace(pathToTemplateDirectory, "");
        allFiles.put(filePath, ByteBuffer.wrap(byteArray));
    }/* w  ww  .  ja  v a2 s.  co  m*/
    return allFiles;
}

From source file:de.dentrassi.pm.npm.aspect.NpmExtractor.java

private void perform(final Path file, final Map<String, String> metadata) throws IOException {
    try (final GZIPInputStream gis = new GZIPInputStream(new FileInputStream(file.toFile()));
            final TarArchiveInputStream tis = new TarArchiveInputStream(gis)) {
        TarArchiveEntry entry;/*from  w  w  w.j a  v  a  2s . co m*/
        while ((entry = tis.getNextTarEntry()) != null) {
            if (entry.getName().equals("package/package.json")) {
                final byte[] data = new byte[(int) entry.getSize()];
                ByteStreams.read(tis, data, 0, data.length);

                final String str = StandardCharsets.UTF_8.decode(ByteBuffer.wrap(data)).toString();

                try {
                    // test parse
                    new JsonParser().parse(str);
                    // store
                    metadata.put("package.json", str);
                } catch (final JsonParseException e) {
                    // ignore
                }

                break; // stop parsing the archive
            }
        }

    }
}

From source file:com.facebook.buck.util.zip.ZipScrubberTest.java

@Test
public void modificationTimes() throws Exception {

    // Create a dummy ZIP file.
    ByteArrayOutputStream bytesOutputStream = new ByteArrayOutputStream();
    try (ZipOutputStream out = new ZipOutputStream(bytesOutputStream)) {
        ZipEntry entry = new ZipEntry("file1");
        byte[] data = "data1".getBytes(Charsets.UTF_8);
        entry.setSize(data.length);//from  w w w.j  a va 2 s  .  c  o m
        out.putNextEntry(entry);
        out.write(data);
        out.closeEntry();

        entry = new ZipEntry("file2");
        data = "data2".getBytes(Charsets.UTF_8);
        entry.setSize(data.length);
        out.putNextEntry(entry);
        out.write(data);
        out.closeEntry();
    }

    byte[] bytes = bytesOutputStream.toByteArray();
    // Execute the zip scrubber step.
    ZipScrubber.scrubZipBuffer(bytes.length, ByteBuffer.wrap(bytes));

    // Iterate over each of the entries, expecting to see all zeros in the time fields.
    Date dosEpoch = new Date(ZipUtil.dosToJavaTime(ZipConstants.DOS_FAKE_TIME));
    try (ZipInputStream is = new ZipInputStream(new ByteArrayInputStream(bytes))) {
        for (ZipEntry entry = is.getNextEntry(); entry != null; entry = is.getNextEntry()) {
            assertThat(entry.getName(), new Date(entry.getTime()), Matchers.equalTo(dosEpoch));
        }
    }
}

From source file:net.sf.yal10n.analyzer.ExploratoryEncodingTest.java

/**
 * Test how malformed input is reported.
 * @throws Exception any error/* w  ww .jav a  2  s.c o m*/
 */
@Test(expected = MalformedInputException.class)
public void testMalformedEncoding() throws Exception {
    ByteBuffer buffer = ByteBuffer.wrap(data);

    utf8.newDecoder().onMalformedInput(CodingErrorAction.REPORT).onUnmappableCharacter(CodingErrorAction.REPORT)
            .decode(buffer);
}

From source file:com.cloudera.branchreduce.impl.thrift.VassalProxy.java

@Override
public synchronized void startTasks(List<T> tasks, G globalState) {
    StartTasksRequest req = new StartTasksRequest();
    req.setGlobalState(WritableUtils.toByteArray(globalState));
    for (T task : tasks) {
        req.addToTasks(ByteBuffer.wrap(WritableUtils.toByteArray(task)));
    }//w  ww.j  a  v  a2 s.c om
    try {
        client.startTasks(req);
    } catch (TException e) {
        LOG.error("Transport exception starting tasks", e);
    }
}

From source file:ch.ledcom.jpreseed.cli.JPreseed.java

public final void create(JPreseedArguments arguments) throws IOException {
    try (InputImage image = getSourceImage(arguments);
            GZIPOutputStream newImage = new GZIPOutputStream(
                    Files.newOutputStream(arguments.getTargetImage()))) {
        ByteBuffer sysConfigCfg = ByteBuffer.wrap(Files.readAllBytes(arguments.getSysConfigFile()));
        usbCreator.create(image.getContent(), newImage, sysConfigCfg, arguments.getPreseeds());
    }/*from   w ww .  ja v  a 2s .c  om*/
}

From source file:com.knewton.mapreduce.SSTableColumnMapperTest.java

/**
 * Test to see if cassandra columns go through the mapper correctly.
 * //from  www .  j ava  2 s  . c  o m
 * @throws IOException
 * @throws InterruptedException
 */
@Test
public void testMap() throws IOException, InterruptedException {

    ByteBuffer key = ByteBuffer.wrap(keyVal.getBytes());
    IColumn column = new Column(ByteBuffer.wrap(columnNameVal.getBytes()),
            ByteBuffer.wrap(columnValue.getBytes()));
    concreteMapper.map(key, column, null);
    // Key
    byte[] verifyByteArr = new byte[keyVal.length()];
    concreteMapper.getCurrentKey().get(verifyByteArr);
    assertEquals(keyVal, new String(verifyByteArr));
    // Column name
    verifyByteArr = new byte[columnNameVal.length()];
    concreteMapper.getCurrentColumn().name().get(verifyByteArr);
    assertEquals(columnNameVal, new String(verifyByteArr));
    // Column value
    verifyByteArr = new byte[columnValue.length()];
    concreteMapper.getCurrentColumn().value().get(verifyByteArr);
    assertEquals(columnValue, new String(verifyByteArr));
    concreteMapper.clearKeyVal();
}