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.knewton.mapreduce.util.RandomStudentEventGenerator.java

/**
 * Helper method for generating decorated increasing student ids. Used by
 * {@link WriteSampleSSTable} for writing a sorted SSTable.
 *
 * @return A list of byte buffers with student IDs
 */// w  ww  .  j av a 2  s  . c  o m
public static List<ByteBuffer> getStudentIds(int numberOfStudents) {
    long studentId = 1000000L;
    List<ByteBuffer> studentIds = Lists.newArrayListWithCapacity(numberOfStudents);

    for (int i = 0; i < numberOfStudents; i++) {
        ByteBuffer bb = ByteBuffer.wrap(new byte[8]);
        bb.putLong(studentId++);
        bb.rewind();
        studentIds.add(bb);
    }

    Collections.sort(studentIds, new Comparator<ByteBuffer>() {
        @Override
        public int compare(ByteBuffer o1, ByteBuffer o2) {
            DecoratedKey dk1 = StorageService.getPartitioner().decorateKey(o1);
            DecoratedKey dk2 = StorageService.getPartitioner().decorateKey(o2);
            return dk1.compareTo(dk2);
        }
    });

    return studentIds;
}

From source file:com.inmobi.messaging.consumer.databus.mapred.TestDatabusBytesWritableInputFormat.java

/**
 * read the the given input split./*from  w ww .ja v  a  2 s.co  m*/
 * @return List : List of read messages
 */
private List<Message> readSplit(DatabusBytesWritableInputFormat format, InputSplit split, JobConf job,
        Reporter reporter) throws IOException {
    List<Message> result = new ArrayList<Message>();
    RecordReader<LongWritable, BytesWritable> reader = format.getRecordReader(split, job, reporter);
    LongWritable key = ((DatabusBytesWritableRecordReader) reader).createKey();
    BytesWritable value = ((DatabusBytesWritableRecordReader) reader).createValue();

    while (((DatabusBytesWritableRecordReader) reader).next(key, value)) {
        byte[] data = new byte[value.getLength()];
        System.arraycopy(value.getBytes(), 0, data, 0, value.getLength());
        result.add(new Message(ByteBuffer.wrap(data)));
        value = (BytesWritable) ((DatabusBytesWritableRecordReader) reader).createValue();
    }
    reader.close();
    return result;
}

From source file:de.zalando.spring.cloud.config.aws.kms.KmsTextEncryptor.java

@Override
public String decrypt(final String encryptedText) {
    if (encryptedText == null || encryptedText.isEmpty()) {
        return EMPTY_STRING;
    } else {/*from  ww  w.j a v a2  s  . co  m*/

        // Assuming the encryptedText is encoded in Base64
        final ByteBuffer encryptedBytes = ByteBuffer.wrap(Base64.decode(encryptedText.getBytes()));

        final DecryptRequest decryptRequest = new DecryptRequest().withCiphertextBlob(encryptedBytes);

        return extractString(kms.decrypt(decryptRequest).getPlaintext());
    }
}

From source file:io.druid.segment.data.VSizeColumnarIntsSerializerTest.java

private void checkSerializedSizeAndData() throws Exception {
    int maxValue = vals.length == 0 ? 0 : Ints.max(vals);
    VSizeColumnarIntsSerializer writer = new VSizeColumnarIntsSerializer(segmentWriteOutMedium, maxValue);

    VSizeColumnarInts intsFromList = VSizeColumnarInts.fromIndexedInts(new ArrayBasedIndexedInts(vals),
            maxValue);/*from w  ww. jav  a 2s .c o m*/
    writer.open();
    for (int val : vals) {
        writer.addValue(val);
    }
    long writtenLength = writer.getSerializedSize();
    WriteOutBytes writeOutBytes = segmentWriteOutMedium.makeWriteOutBytes();
    writer.writeTo(writeOutBytes, null);

    assertEquals(writtenLength, intsFromList.getSerializedSize());

    // read from ByteBuffer and check values
    VSizeColumnarInts intsFromByteBuffer = VSizeColumnarInts
            .readFromByteBuffer(ByteBuffer.wrap(IOUtils.toByteArray(writeOutBytes.asInputStream())));
    assertEquals(vals.length, intsFromByteBuffer.size());
    for (int i = 0; i < vals.length; ++i) {
        assertEquals(vals[i], intsFromByteBuffer.get(i));
    }
}

From source file:com.joyent.manta.http.entity.ExposedStringEntity.java

@Override
public ByteBuffer getBackingBuffer() {
    return ByteBuffer.wrap(super.content);
}

From source file:com.capitalone.dashboard.util.ClientUtil.java

/**
 * Utility method used to sanitize / canonicalize a String-based response
 * artifact from a source system. This will return a valid UTF-8 strings, or
 * a "" (blank) response for any of the following cases:
 * "NULL";"Null";"null";null;""/*from  w w w . java 2 s .  c  o m*/
 * 
 * @param inNativeRs
 *            The string response artifact retrieved from the source system
 *            to be sanitized
 * @return A UTF-8 sanitized response
 */
public String sanitizeResponse(Object inNativeRs) {
    if (inNativeRs == null) {
        return "";
    }
    String nativeRs = inNativeRs.toString();

    byte[] utf8Bytes;
    CharsetDecoder cs = StandardCharsets.UTF_8.newDecoder();
    try {
        if ("null".equalsIgnoreCase(nativeRs)) {
            return "";
        }
        if (nativeRs.isEmpty()) {
            return "";
        }
        utf8Bytes = nativeRs.getBytes(StandardCharsets.UTF_8);
        cs.decode(ByteBuffer.wrap(utf8Bytes));
        return new String(utf8Bytes, StandardCharsets.UTF_8);
    } catch (Exception e) {
        return "[INVALID NON UTF-8 ENCODING]";
    }
}

From source file:com.rackspacecloud.blueflood.io.serializers.astyanax.TimerSerializationTest.java

@Test
public void testV2RoundTrip() throws IOException {
    // build up a Timer
    BluefloodTimerRollup r0 = new BluefloodTimerRollup().withSum(Double.valueOf(42)).withCountPS(23.32d)
            .withAverage(56).withVariance(853.3245d).withMinValue(2).withMaxValue(987).withCount(345);
    r0.setPercentile("foo", 741.32d);
    r0.setPercentile("bar", 0.0323d);

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    baos.write(Base64.encodeBase64(Serializers.timerRollupInstance.toByteBuffer(r0).array()));
    baos.write("\n".getBytes());
    baos.close();/*from   w  w w. j  ava 2 s.  co  m*/

    BufferedReader reader = new BufferedReader(
            new InputStreamReader(new ByteArrayInputStream(baos.toByteArray())));
    ByteBuffer bb = ByteBuffer.wrap(Base64.decodeBase64(reader.readLine().getBytes()));
    BluefloodTimerRollup r1 = Serializers.timerRollupInstance.fromByteBuffer(bb);
    Assert.assertEquals(r0, r1);
}

From source file:net.phoenix.thrift.hello.SpringHelloService.java

@Override
public ByteBuffer testBinary(ByteBuffer name) throws TException {
    try {/*from   ww  w  . j ava2  s .  com*/

        String result = new String(name.array(), name.position(), name.limit() - name.position(), "UTF-8");
        result = "Hello " + result;
        return ByteBuffer.wrap(result.getBytes("UTF-8"));
    } catch (UnsupportedEncodingException e) {
        throw new TException(e);
    }
}

From source file:com.bendb.thrifty.testing.ThriftTestHandler.java

@Override
public ByteBuffer testBinary(ByteBuffer thing) throws TException {
    int count = thing.remaining();
    byte[] data = new byte[count];
    thing.get(data);//from  w  w  w  . j ava2  s.  c om

    out.printf("testBinary(\"%s\")\n", Hex.encodeHexString(data));

    return ByteBuffer.wrap(data);
}