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.willetinc.hadoop.mapreduce.dynamodb.BinarySplitterTest.java

@Test
public void testSplitInteger() {

    final int NUM_RANGE_SPLITS = 2;
    final String VALUE = "007";
    final Types hashKeyType = Types.NUMBER;
    final AttributeValue hashKeyValue = new AttributeValue().withN(VALUE);
    final Types rangeKeyType = Types.STRING;
    final AttributeValue minRangeKeyValue = new AttributeValue()
            .withB(ByteBuffer.wrap(new byte[] { 0x0, 0x0 }));
    final AttributeValue maxRangeKeyValue = new AttributeValue()
            .withB(ByteBuffer.wrap(new byte[] { 0x0, 0xF }));

    Configuration conf = createMock(Configuration.class);
    BinarySplitter splitter = new BinarySplitter();

    List<InputSplit> inputSplits = new ArrayList<InputSplit>();

    splitter.generateRangeKeySplits(conf, inputSplits, hashKeyType, hashKeyValue, rangeKeyType,
            minRangeKeyValue, maxRangeKeyValue, NUM_RANGE_SPLITS);

    assertEquals(2, inputSplits.size());

    for (InputSplit inputSplit : inputSplits) {
        DynamoDBQueryInputFormat.DynamoDBQueryInputSplit split = (DynamoDBQueryInputFormat.DynamoDBQueryInputSplit) inputSplit;
        Iterator<AttributeValue> itr = split.getRangeKeyValues().iterator();

        System.out.print(split.getRangeKeyOperator() + " ");
        System.out.print(Base64.encodeBase64String(itr.next().getB().array()) + " AND ");
        System.out.println(Base64.encodeBase64String(itr.next().getB().array()));
    }/*from  w  w  w  .  ja  va  2s.co  m*/

}

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From source file:ch.ledcom.jpreseed.UsbCreatorTest.java

@Test
public void createUsb() throws IOException {
    Date startTime = new Date();
    ByteBuffer sysLinuxCfg = ByteBuffer.wrap("sysLinuxCfg".getBytes());
    Set<Path> preseeds = Collections.singleton(HELLO_WORLD_TXT);

    try (InputStream srcBootImg = Files.newInputStream(VFAT_IMG_GZ);
            GZIPOutputStream newBootImg = new GZIPOutputStream(Files.newOutputStream(NEW_IMAGE))) {
        new UsbCreator().create(srcBootImg, newBootImg, sysLinuxCfg, preseeds);
    }//from  w w  w .j a v a  2 s.  co  m

    assertThat(NEW_IMAGE).exists();

    FileSystem fileSystem = FileSystemFactory.create(RamDisk.readGzipped(NEW_IMAGE.toFile()), true);

    FsDirectoryEntry newInitRdGzEntry = fileSystem.getRoot().getEntry(INITRD_GZ);
    assertThat(newInitRdGzEntry).hasBeenModifiedAt(startTime, 2000);
    assertThat(fileSystem.getRoot().getEntry(SYSLINUX_CFG)).hasBeenModifiedAt(startTime, 2000);

    CpioArchiveInputStream initRdCpio = getCpioArchiveInputStream(newInitRdGzEntry);
    assertThat(initRdCpio).hasSingleEntry(HELLO_WORLD_TXT.getFileName().toString());
}

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From source file:com.ning.http.client.providers.apache.ApacheResponseBodyPart.java

@Override
public ByteBuffer getBodyByteBuffer() {
    return ByteBuffer.wrap(chunk);
}

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From source file:com.amazonaws.services.kinesis.model.transform.PutRecordsRequestMarshallerTest.java

@Test
public void test() throws Exception {
    PutRecordsRequest putRecordsRequest = new PutRecordsRequest();
    putRecordsRequest.setStreamName("stream name");
    List<PutRecordsRequestEntry> records = new ArrayList<PutRecordsRequestEntry>();
    for (int i = 0; i < 10; i++) {
        PutRecordsRequestEntry record = new PutRecordsRequestEntry();
        String randomStr = RandomStringUtils.random(8 * 1024);
        record.setData(ByteBuffer.wrap(randomStr.getBytes(StringUtils.UTF8)));
        record.setPartitionKey("partition key");
        records.add(record);/*w  w  w .  ja v  a 2  s  .  co  m*/
    }
    putRecordsRequest.setRecords(records);
    PutRecordsRequestMarshaller marshaller = new PutRecordsRequestMarshaller();
    Request<PutRecordsRequest> request = marshaller.marshall(putRecordsRequest);

    assertEquals("content encoding", "gzip", request.getHeaders().get("Content-Encoding"));
    byte[] content = IOUtils.toByteArray(request.getContent());
    assertEquals("content length", request.getHeaders().get("Content-Length"), String.valueOf(content.length));
    GZIPInputStream gis = new GZIPInputStream(new ByteArrayInputStream(content));
    String str = IOUtils.toString(gis);
    assertTrue("content is compressed", content.length < str.length());
    Map<String, String> map = JsonUtils.jsonToMap(str);
    assertEquals("StreamName", "stream name", map.get("StreamName"));
}

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From source file:StreamUtility.java

/**
 * Converts little endian bytes to a int
 * @param value byte array to read/*from w w w.  j a v a  2 s  .c om*/
 * @return integer value of the byte array
 */
public static int littleEndianToInt(byte[] value) {
    return ByteBuffer.wrap(value).order(ByteOrder.LITTLE_ENDIAN).getInt();
}

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From source file:com.microsoft.applicationinsights.extensibility.initializer.SequencePropertyInitializer.java

private static String uuidToBase64() {
    Base64 base64 = new Base64();
    UUID uuid = UUID.randomUUID();
    ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
    bb.putLong(uuid.getMostSignificantBits());
    bb.putLong(uuid.getLeastSignificantBits());
    return base64.encodeBase64URLSafeString(bb.array());
}

---

From source file:com.amazonaws.services.logs.connectors.s3.S3TransformerTest.java

@Test
public void transformAccessLog() throws IOException {
    S3Transformer classUnderTest = new S3Transformer();

    // load the example events
    byte[] data = TestUtils.getCompressedTestFile("/access-log-example.json");

    // execute//  w  w  w. j  av a 2s  .c o  m
    List<CloudWatchLogsEvent> logEvents = new ArrayList<>(
            classUnderTest.toClass(new Record().withData(ByteBuffer.wrap(data))));

    List<byte[]> s3Entries = new ArrayList<>();

    for (CloudWatchLogsEvent logEvent : logEvents) {
        s3Entries.add(classUnderTest.fromClass(logEvent));
    }

    // verify
    JsonNode sourceNode;

    // event 1
    sourceNode = JSON_OBJECT_MAPPER.readTree(s3Entries.get(0));

    assertEquals("49545295115971876468408574808414755329919666212443258898", sourceNode.get("id").asText());
    assertEquals(1421116133213L, sourceNode.get("timestamp").asLong());
    assertEquals("123456789012", sourceNode.get("owner").asText());
    assertEquals("Apache/access.log", sourceNode.get("logGroup").asText());
    assertEquals("i-c3f9bec9", sourceNode.get("logStream").asText());
    assertEquals("127.0.0.1 frank GET 200 4535", sourceNode.get("message").asText());

    assertEquals(200, sourceNode.get("extractedFields").get("status_code").asLong());
    assertEquals("GET", sourceNode.get("extractedFields").get("verb").asText());
    assertEquals(4535, sourceNode.get("extractedFields").get("response_size").asLong());
    assertEquals("frank", sourceNode.get("extractedFields").get("user").asText());
    assertEquals("127.0.0.1", sourceNode.get("extractedFields").get("ip").asText());

    // event 2
    sourceNode = JSON_OBJECT_MAPPER.readTree(s3Entries.get(1));

    assertEquals("49545295115971876468408574808465530214343480843939348498", sourceNode.get("id").asText());
    assertEquals(1421116143214L, sourceNode.get("timestamp").asLong());
    assertEquals("123456789012", sourceNode.get("owner").asText());
    assertEquals("Apache/access.log", sourceNode.get("logGroup").asText());
    assertEquals("i-c3f9bec9", sourceNode.get("logStream").asText());
    assertEquals("127.0.0.1 alice POST 404 34", sourceNode.get("message").asText());

    assertEquals(404, sourceNode.get("extractedFields").get("status_code").asLong());
    assertEquals("POST", sourceNode.get("extractedFields").get("verb").asText());
    assertEquals(34, sourceNode.get("extractedFields").get("response_size").asLong());
    assertEquals("alice", sourceNode.get("extractedFields").get("user").asText());
    assertEquals("127.0.0.1", sourceNode.get("extractedFields").get("ip").asText());
}

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From source file:com.nearinfinity.honeycomb.hbase.bulkload.FieldParser.java

/**
 * Try to parse a string into a byte string based on a column type.
 *
 * @param val    String value/*from  w w w. ja  v  a2 s .  c  o m*/
 * @param schema Column schema to base value parsing on.
 * @return Byte string
 * @throws ParseException The string value could not be parsed into the column type.
 */
public static ByteBuffer parse(String val, ColumnSchema schema) throws ParseException {
    checkNotNull(val, "Should not be parsing null. Something went terribly wrong.");
    checkNotNull(schema, "Column metadata is null.");

    ColumnType type = schema.getType();

    if (val.length() == 0 && type != ColumnType.STRING && type != ColumnType.BINARY) {
        if (schema.getIsNullable()) {
            return null;
        }

        throw new IllegalArgumentException(
                "Expected a value for a" + " non-null SQL column, but no value was given.");
    }

    switch (type) {
    case LONG:
        return ByteBuffer.wrap(Longs.toByteArray(Long.parseLong(val)));
    case ULONG:
        BigInteger n = new BigInteger(val);
        if (n.compareTo(BigInteger.ZERO) == -1) {
            throw new IllegalArgumentException("negative value provided for unsigned column. value: " + val);
        }
        return ByteBuffer.wrap(Longs.toByteArray(n.longValue()));
    case DOUBLE:
        return ByteBuffer.wrap(Bytes.toBytes(Double.parseDouble(val)));
    case DATE:
        return extractDate(val, "yyyy-MM-dd", "yyyy-MM-dd", "yyyy/MM/dd", "yyyy.MM.dd", "yyyyMMdd");
    case TIME:
        return extractDate(val, "HH:mm:ss", "HH:mm:ss", "HHmmss");
    case DATETIME:
        return extractDate(val, "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm:ss", "yyyy/MM/dd HH:mm:ss",
                "yyyy.MM.dd HH:mm:ss", "yyyyMMdd HHmmss");
    case DECIMAL:
        return extractDecimal(val, schema.getPrecision(), schema.getScale());
    case STRING:
    case BINARY:
    default:
        return ByteBuffer.wrap(val.getBytes(Charset.forName("UTF-8")));
    }
}

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From source file:com.knewton.mapreduce.util.RandomStudentEventGenerator.java

/**
 * Helper method for wrapping an id in a <code>ByteBuffer</code>.
 *
 * @return A byte buffer with a random ID
 *///from  w  ww .  j a  va  2  s . c om
public static ByteBuffer getRandomIdBuffer() {
    long id = getRandomId();
    ByteBuffer bb = ByteBuffer.wrap(new byte[8]);
    bb.putLong(id);
    bb.rewind();
    return bb;
}

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

@Test
public void testCounterV1RoundTrip() throws IOException {
    BluefloodCounterRollup c0 = new BluefloodCounterRollup().withCount(7442245).withSampleCount(1);
    BluefloodCounterRollup c1 = new BluefloodCounterRollup().withCount(34454722343L).withSampleCount(10);

    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    baos.write(Base64.encodeBase64(Serializers.counterRollupInstance.toByteBuffer(c0).array()));
    baos.write("\n".getBytes());
    baos.write(Base64.encodeBase64(Serializers.counterRollupInstance.toByteBuffer(c1).array()));
    baos.write("\n".getBytes());

    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    BufferedReader reader = new BufferedReader(new InputStreamReader(bais));

    ByteBuffer bb = ByteBuffer.wrap(Base64.decodeBase64(reader.readLine().getBytes()));
    BluefloodCounterRollup cc0 = Serializers.serializerFor(BluefloodCounterRollup.class).fromByteBuffer(bb);
    Assert.assertEquals(c0, cc0);//w w  w  .j  av  a 2 s .c o  m

    bb = ByteBuffer.wrap(Base64.decodeBase64(reader.readLine().getBytes()));
    BluefloodCounterRollup cc1 = Serializers.serializerFor(BluefloodCounterRollup.class).fromByteBuffer(bb);

    Assert.assertEquals(c1, cc1);
    Assert.assertFalse(cc0.equals(cc1));
}

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