Example usage for io.netty.buffer ByteBuf writeByte

Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf writeByte.

Prototype

public abstract ByteBuf writeByte(int value);

Source Link

Document

Sets the specified byte at the current writerIndex and increases the writerIndex by 1 in this buffer.

Usage

From source file:com.github.milenkovicm.kafka.protocol.Convert.java

License:Apache License

public static void encodeByte(int integer, ByteBuf buf) {
    buf.writeByte(integer);
}

From source file:com.heelenyc.im.coder.MessageEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, Message msg, ByteBuf sendBuf) throws Exception {
    if (msg == null || msg.getHeader() == null)
        throw new Exception("The encode message is null");

    sendBuf.writeInt((msg.getHeader().getCrcCode()));
    sendBuf.writeInt((msg.getHeader().getLength())); // ?
    sendBuf.writeLong((msg.getHeader().getSessionID()));
    sendBuf.writeByte((msg.getHeader().getType()));
    sendBuf.writeByte((msg.getHeader().getPriority()));
    sendBuf.writeInt((msg.getHeader().getAttachment().size()));
    String key = null;//from  www .ja  va 2  s.c o m
    byte[] keyArray = null;
    Object value = null;
    for (Map.Entry<String, Object> param : msg.getHeader().getAttachment().entrySet()) {
        // write key
        key = param.getKey();
        keyArray = key.getBytes(Constans.ATTACHMENT_KEY_CHARACTSET);
        sendBuf.writeInt(keyArray.length);
        sendBuf.writeBytes(keyArray);
        // write value
        value = param.getValue();
        encoder.encode(value, sendBuf);
    }
    key = null;
    keyArray = null;
    value = null;
    if (msg.getBody() != null) {
        encoder.encode(msg.getBody(), sendBuf);
    } else
        sendBuf.writeInt(0);
    int totalSize = sendBuf.readableBytes() - Constans.MESSAGE_LENGTH_FIELD_OFFSET
            - Constans.MESSAGE_LENGTH_FIELD_LENGTH;
    // fix head length field
    msg.getHeader().setLength(totalSize);
    // ?
    sendBuf.setInt(Constans.MESSAGE_LENGTH_FIELD_OFFSET, totalSize);
    logger.debug("encode :" + msg);
}

From source file:com.heliosapm.ohcrs.core.AbstractDriverCodec.java

License:Apache License

/**
 * {@inheritDoc}//w w  w .j  a va 2 s. c  om
 * @see com.heliosapm.ohcrs.core.DriverCodec#write(byte, io.netty.buffer.ByteBuf)
 */
@Override
public int write(final Byte p, final ByteBuf b) throws SQLException {
    prefix(p, DBType.TINYINT, b);
    b.writeByte(p);
    return b.writerIndex();
}

From source file:com.heliosapm.ohcrs.core.AbstractDriverCodec.java

License:Apache License

/**
 * {@inheritDoc}//from   www  . java 2 s  .com
 * @see com.heliosapm.ohcrs.core.DriverCodec#write(byte, io.netty.buffer.ByteBuf)
 */
@Override
public int write(final byte p, final ByteBuf b) throws SQLException {
    prefix(P, DBType.TINYINT, b);
    b.writeByte(p);
    return b.writerIndex();
}

From source file:com.heliosapm.streams.metrics.aggregation.StreamedMetricAggregation.java

License:Apache License

/**
 * Returns this aggregation as a byte array
 * @return a byte array//from ww w .j  ava  2s.  c  o m
 */
public byte[] toByteArray() {
    final ByteBuf b = BufferManager.getInstance().buffer(size == -1 ? 128 : size);
    try {
        b.writeByte(sticky ? 1 : 0);
        b.writeByte(doubleType ? 1 : 0);
        b.writeLong(createTime);
        b.writeLong(period);
        b.writeByte(periodUnit.ordinal());
        values.position(0);
        b.writeBytes(values);
        b.writeByte(tags.size());
        BufferManager.writeUTF(metricName, b);
        for (Map.Entry<String, String> entry : tags.entrySet()) {
            BufferManager.writeUTF(entry.getKey(), b);
            BufferManager.writeUTF(entry.getValue(), b);
        }
        return ByteBufUtil.getBytes(b);
    } finally {
        try {
            b.release();
        } catch (Exception x) {
            /* No Op */}
    }
}

From source file:com.heliosapm.streams.metrics.StreamedMetric.java

License:Open Source License

/**
 * Returns a byte array containing the serialized streammetric
 * @return a byte array /*  w  w w .j a  v a  2s .c o m*/
 */
public byte[] toByteArray() {
    final ByteBuf buff = BufferManager.getInstance().directBuffer(byteSize);
    try {
        buff.writeByte(TYPE_CODE);
        writeByteArray(buff);
        return ByteBufUtil.getBytes(buff, 0, buff.readableBytes());

    } finally {
        try {
            buff.release();
        } catch (Exception x) {
            /* No Op */}
    }
}

From source file:com.heliosapm.streams.metrics.StreamedMetric.java

License:Open Source License

/**
 * Returns this streamed metric serialized into a byte buf
 * @return the byte buff/*w  ww  .j a  v  a  2s  .c  om*/
 */
public ByteBuf toByteBuff() {
    final ByteBuf buff = BufferManager.getInstance().directBuffer(byteSize);
    buff.writeByte(TYPE_CODE);
    writeByteArray(buff);
    return buff;
}

From source file:com.heliosapm.streams.metrics.StreamedMetric.java

License:Open Source License

/**
 * Writes this metric into the passed buffer
 * @param buf The buffer to write this metric into
 *///from   ww w.j av a 2 s.co m
public void intoByteBuf(final ByteBuf buf) {
    buf.writeByte(TYPE_CODE);
    writeByteArray(buf);
}

From source file:com.heliosapm.streams.metrics.StreamedMetric.java

License:Open Source License

/**
 * Returns a byte array containing the serialized streammetric
 * @param buff The buffer to write into/*from   w w  w.j ava2  s.  c o m*/
 */
void writeByteArray(final ByteBuf buff) {
    buff.writeByte(valueType == null ? 0 : valueType.ordinal() + 1);
    buff.writeLong(timestamp);
    BufferManager.writeUTF(metricName, buff);
    buff.writeByte(tags.size());
    for (Map.Entry<String, String> entry : tags.entrySet()) {
        BufferManager.writeUTF(entry.getKey(), buff);
        BufferManager.writeUTF(entry.getValue(), buff);
    }
}

From source file:com.heliosapm.streams.metrics.StreamedMetricValue.java

License:Apache License

/**
 * Writes a metric definition to the passed buffer
 * @param buff The buffer to write to//from   w  w w  .  ja va  2  s  .  c  om
 * @param valueType The value type
 * @param metricName The metric name
 * @param timestamp The metric timestamp
 * @param tags The metric tags
 * @return the number of bytes written
 */
public static int write(final ByteBuf buff, final ValueType valueType, final String metricName,
        final long timestamp, final Map<String, String> tags) {
    final int offset = buff.writerIndex();
    buff.writeByte(TYPE_CODE);
    buff.writeByte(valueType == null ? 0 : valueType.ordinal() + 1);
    buff.writeLong(timestamp);
    BufferManager.writeUTF(metricName, buff);
    buff.writeByte(tags.size());
    for (Map.Entry<String, String> entry : tags.entrySet()) {
        BufferManager.writeUTF(entry.getKey(), buff);
        BufferManager.writeUTF(entry.getValue(), buff);
    }
    return buff.writerIndex() - offset;
}