Example usage for io.netty.buffer Unpooled wrappedBuffer

Introduction

In this page you can find the example usage for io.netty.buffer Unpooled wrappedBuffer.

Prototype

public static ByteBuf wrappedBuffer(ByteBuffer... buffers)

Source Link

Document

Creates a new big-endian composite buffer which wraps the slices of the specified NIO buffers without copying them.

Usage

From source file:com.yahoo.pulsar.client.impl.MessageImpl.java

License:Apache License

public MessageImpl(String msgId, Map<String, String> properties, byte[] payload) {
    this(msgId, properties, Unpooled.wrappedBuffer(payload));
}

From source file:com.yahoo.pulsar.common.api.DoubleByteBuf.java

License:Apache License

@Override
public DoubleByteBuf getBytes(int index, byte[] dst, int dstIndex, int length) {
    return getBytes(index, Unpooled.wrappedBuffer(dst), dstIndex, length);
}

From source file:com.yahoo.pulsar.common.api.DoubleByteBuf.java

License:Apache License

@Override
public ByteBuffer nioBuffer(int index, int length) {
    ByteBuffer dst = ByteBuffer.allocate(length);
    ByteBuf b = Unpooled.wrappedBuffer(dst);
    b.writerIndex(0);/*from  w w w  .  j  a va 2s .c  om*/
    getBytes(index, b, length);
    return dst;
}

From source file:com.yahoo.pulsar.common.compression.CommandsTest.java

License:Apache License

@Test
public void testChecksumSendCommand() throws Exception {

    // test checksum in send command
    String producerName = "prod-name";
    int sequenceId = 0;
    ByteBuf data = Unpooled.buffer(1024);
    MessageMetadata messageMetadata = MessageMetadata.newBuilder().setPublishTime(System.currentTimeMillis())
            .setProducerName(producerName).setSequenceId(sequenceId).build();
    int expectedChecksum = computeChecksum(messageMetadata, data);
    ByteBuf clientCommand = Commands.newSend(1, 0, 1, ChecksumType.Crc32c, messageMetadata, data);
    clientCommand.retain();/*from   www .ja  v  a 2 s. com*/
    ByteBuffer inputBytes = clientCommand.nioBuffer();
    ByteBuf receivedBuf = Unpooled.wrappedBuffer(inputBytes);
    receivedBuf.skipBytes(4); //skip [total-size]
    int cmdSize = (int) receivedBuf.readUnsignedInt();
    receivedBuf.readerIndex(8 + cmdSize);
    int startMessagePos = receivedBuf.readerIndex();

    /*** 1. verify checksum and metadataParsing ***/
    boolean hasChecksum = Commands.hasChecksum(receivedBuf);
    int checksum = Commands.readChecksum(receivedBuf).intValue();

    // verify checksum is present
    assertTrue(hasChecksum);
    // verify checksum value
    assertEquals(expectedChecksum, checksum);
    MessageMetadata metadata = Commands.parseMessageMetadata(receivedBuf);
    // verify metadata parsing
    assertEquals(metadata.getProducerName(), producerName);

    /** 2. parseMessageMetadata should skip checksum if present **/
    receivedBuf.readerIndex(startMessagePos);
    metadata = Commands.parseMessageMetadata(receivedBuf);
    // verify metadata parsing
    assertEquals(metadata.getProducerName(), producerName);

}

From source file:com.yahoo.pulsar.common.compression.Crc32cChecksumTest.java

License:Apache License

@Test
public void testCrc32c() {
    ByteBuf payload = Unpooled.wrappedBuffer(inputBytes);
    int checksum = Crc32cChecksum.computeChecksum(payload);
    payload.release();/*from w w  w.  j  a va 2 s .c  o m*/
    assertEquals(expectedChecksum, checksum);
}

From source file:com.yahoo.pulsar.common.compression.Crc32cChecksumTest.java

License:Apache License

@Test
public void testCrc32cHardware() {
    if (HARDWARE_CRC32C_HASH == null) {
        return;/*from www.  j a  v  a  2 s  . c  om*/
    }

    ByteBuf payload = Unpooled.wrappedBuffer(inputBytes);

    // compute checksum using sse4.2 hw instruction
    int hw = HARDWARE_CRC32C_HASH.calculate(payload.array(), payload.arrayOffset() + payload.readerIndex(),
            payload.readableBytes());
    assertEquals(hw, expectedChecksum);
}

From source file:com.yahoo.pulsar.common.compression.Crc32cChecksumTest.java

License:Apache License

@Test
public void testCrc32cSoftware() {
    ByteBuf payload = Unpooled.wrappedBuffer(inputBytes);

    // compute checksum using sw algo
    int sw = SOFTWARE_CRC32C_HASH.calculate(payload.array(), payload.arrayOffset() + payload.readerIndex(),
            payload.readableBytes());/*from  ww w  . jav a  2s  .c  o m*/
    assertEquals(sw, expectedChecksum);
}

From source file:com.yahoo.pulsar.common.compression.Crc32cChecksumTest.java

License:Apache License

@Test
public void testCrc32cIncrementalUsingProvider() {

    final byte[] data = "data".getBytes();
    final byte[] doubleData = "datadata".getBytes();
    ByteBuf payload = Unpooled.wrappedBuffer(data);
    ByteBuf doublePayload = Unpooled.wrappedBuffer(doubleData);

    int expectedChecksum = Crc32cChecksum.computeChecksum(doublePayload);

    // (1) heap-memory
    int checksum = Crc32cChecksum.computeChecksum(payload);
    int incrementalChecksum = Crc32cChecksum.resumeChecksum(checksum, payload);
    assertEquals(expectedChecksum, incrementalChecksum);
    payload.release();//from   w ww  .  jav a  2 s.  c o  m
    doublePayload.release();

    // (2) direct-memory
    payload = ByteBufAllocator.DEFAULT.directBuffer(data.length);
    payload.writeBytes(data);
    checksum = Crc32cChecksum.computeChecksum(payload);
    incrementalChecksum = Crc32cChecksum.resumeChecksum(checksum, payload);
    assertEquals(expectedChecksum, incrementalChecksum);
    payload.release();

}

From source file:com.yahoo.pulsar.common.util.protobuf.ByteBufCodedInputStreamTest.java

License:Apache License

@Test
public void testByteBufCondedInputStreamTest() throws IOException {
    ByteBufCodedInputStream inputStream = ByteBufCodedInputStream
            .get(Unpooled.wrappedBuffer("Test-Message".getBytes()));
    assertTrue(inputStream.skipField(WireFormat.WIRETYPE_VARINT));
    assertTrue(inputStream.skipField(WireFormat.WIRETYPE_FIXED64));
    assertFalse(inputStream.skipField(WireFormat.WIRETYPE_END_GROUP));
    inputStream = ByteBufCodedInputStream.get(Unpooled.wrappedBuffer("1000".getBytes()));
    assertTrue(inputStream.skipField(WireFormat.WIRETYPE_FIXED32));
    assertTrue(inputStream.skipField(WireFormat.WIRETYPE_START_GROUP));

    try {/*  www .  j ava  2  s .  co m*/
        assertTrue(inputStream.skipField(-1));
        fail("Should not happend");
    } catch (Exception e) {
        // pass
    }
    try {
        assertTrue(inputStream.skipField(WireFormat.WIRETYPE_LENGTH_DELIMITED));
        fail("Should not happend");
    } catch (Exception e) {
        // pass
    }

    try {
        inputStream.skipRawBytes(-1);
        fail("Should not happend");
    } catch (InvalidProtocolBufferException e) {
        // pass
    }

    try {
        inputStream.skipRawBytes(10);
        fail("Should not happend");
    } catch (InvalidProtocolBufferException e) {
        // pass
    }

}

From source file:com.yeetor.server.HttpServer.java

License:Open Source License

@HttpRouter(uri = "/shot")
public void shot(ChannelHandlerContext ctx, HttpRequest request, HttpResponse response) {
    String uri = request.uri();//from   w w  w . j  ava  2 s  .c om
    String[] args = uri.split("/");
    if (args.length < 1 || args[1].length() == 0) {
        writeErrorHttpResponse(ctx, request, response, HttpResponseStatus.NOT_FOUND);
        return;
    }

    String serialNumber = args[2];
    long startTime = System.currentTimeMillis();
    Minicap cap = new Minicap(serialNumber);
    byte[] data = cap.takeScreenShot();
    long endTime = System.currentTimeMillis();
    logger.info("ScreenShot used" + (endTime - startTime) + "ms");
    response.headers().set(CONTENT_TYPE, "image/jpeg");
    HttpContent content = new DefaultHttpContent(Unpooled.wrappedBuffer(data));
    response.headers().set(CONTENT_LENGTH, content.content().readableBytes());
    writeResponse(ctx, request, response, content);
}