Example usage for io.netty.buffer ByteBuf readableBytes

Introduction

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

Prototype

public abstract int readableBytes();

Source Link

Document

Returns the number of readable bytes which is equal to (this.writerIndex - this.readerIndex) .

Usage

From source file:com.ebay.jetstream.http.netty.server.HttpRequestHandler.java

License:MIT License

private void processHttpRequest(HttpRequest message, ChannelHandlerContext ctx) throws Exception {

    if (LOGGER.isDebugEnabled()) {
        debugHeadersAndCookies(message);
    }/*from   w  w w  .j  a  va  2 s  . c  om*/

    // Expect: 100-continue should be handled by HttpObjectAggregator.
    ByteBuf buf = ((FullHttpMessage) message).content();
    m_totalContentLength.addAndGet(buf.readableBytes());
    m_server.processHttpRequest(message, ctx.channel());
}

From source file:com.ebay.jetstream.messaging.transport.netty.autoflush.handler.AutoFlushWriterChannelQueue.java

License:MIT License

/**
 * return true if time to flush else return false
 * @param e//  www.jav a 2  s . c  om
 * @return 
 */
public void add(MessageEvent e) {

    m_queue.add(e);

    ByteBuf buf = (ByteBuf) e.getMsg();

    m_bufferSize.addAndGet(buf.readableBytes());

}

From source file:com.ebay.jetstream.messaging.transport.netty.compression.MessageCompressionHandler.java

License:MIT License

/**
 * Invoked when {@link Channel#write(Object)} is called.
 *//*from  w ww  . j a va 2 s . c  o  m*/
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {

    try {

        Attribute<Boolean> attr = ctx.channel().attr(EventProducer.m_eckey);

        Boolean enableCompression = attr.get();

        if ((enableCompression != null) && (enableCompression == true)) {

            ByteBuf chbuf = (ByteBuf) msg;

            int msglen = chbuf.readableBytes();
            ExtendedChannelPromise epromise = (ExtendedChannelPromise) promise;
            epromise.setRawBytes(msglen);

            byte[] compressed = Snappy.rawCompress(chbuf.readBytes(msglen).array(), msglen);

            epromise.setCompressedBytes(compressed.length + 4);
            chbuf.release(); // need to release the original buffer - do I need to check if this this a ref counted buffer

            ByteBuf sendbuf = ctx.alloc().buffer();

            sendbuf.writeInt(compressed.length);
            sendbuf.writeBytes(compressed);

            ctx.write(sendbuf, promise);

            m_totalMessagesCompressed.increment();

        } else {

            ctx.write(msg, promise);

        }

    } catch (Throwable t) {
        m_totalMessagesDropped.increment();
        LOGGER.debug("Failed to compress message - " + t.getLocalizedMessage());

    }

}

From source file:com.ebay.jetstream.messaging.transport.netty.compression.MessageDecompressionHandler.java

License:MIT License

@Override
protected Object decode(ChannelHandlerContext ctx, ByteBuf in) throws Exception {

    ByteBuf frame = (ByteBuf) super.decode(ctx, in);

    if (frame == null) {
        return null;
    }//from  w w  w  .j  a va  2  s.  c  om

    byte[] uncompressedbuf;

    if (m_allocBuf)
        uncompressedbuf = new byte[m_tmpBufSz];
    else
        uncompressedbuf = m_tmpBuf;

    int framelen = frame.readableBytes();

    int len = 0;

    try {

        len = Snappy.rawUncompress(frame.readBytes(framelen).array(), 0, framelen, uncompressedbuf, 0);

    } catch (Throwable t) {

        LOGGER.debug("Failed to uncompress - " + t.getLocalizedMessage());

        frame.release();
        return null;
    }

    frame.release();

    ByteBuf buf = ctx.alloc().directBuffer(len);

    return buf.writeBytes(uncompressedbuf, 0, len);

}

From source file:com.eightkdata.mongowp.bson.netty.DefaultNettyBsonLowLevelReader.java

License:Open Source License

@Override
BsonArray readArray(@Loose @ModifiesIndexes ByteBuf byteBuf) throws NettyBsonReaderException {
    int length = byteBuf.readInt();
    int significantLenght = length - 4 - 1;

    ByteBuf significantSlice = byteBuf.readSlice(significantLenght);

    byte b = byteBuf.readByte();
    assert b == 0x00;

    ArrayList<BsonValue<?>> list = new ArrayList<>();
    while (significantSlice.readableBytes() > 0) {
        list.add(readArrayEntry(significantSlice));
    }//from   w  w w .  j  a  v  a2  s  .c om
    return new ListBsonArray(list);
}

From source file:com.eightkdata.mongowp.bson.netty.DefaultNettyBsonLowLevelReader.java

License:Open Source License

@Override
BsonDocument readDocument(@Loose @ModifiesIndexes ByteBuf byteBuf) throws NettyBsonReaderException {
    int length = byteBuf.readInt();
    int significantLenght = length - 4 - 1;

    ByteBuf significantSlice = byteBuf.readSlice(significantLenght);

    byte b = byteBuf.readByte();
    assert b == 0x00;

    LinkedHashMap<String, BsonValue<?>> values = new LinkedHashMap<>();
    while (significantSlice.readableBytes() > 0) {
        Entry<?> entry = readDocumentEntry(significantSlice);
        values.put(entry.getKey(), entry.getValue());
    }/*from  w ww .jav a 2  s  .c  o  m*/
    return new MapBasedBsonDocument(values);
}

From source file:com.eightkdata.mongowp.bson.netty.NettyBsonBsonBinary.java

License:Open Source License

public NettyBsonBsonBinary(byte numericSubtype, BinarySubtype subtype, @Tight @ModifiesIndexes ByteBuf data) {
    this.numericSubtype = numericSubtype;
    this.subtype = subtype;
    length = data.readableBytes();
    byteSource = new NonIoByteSource(new ByteBufByteSource(data));
}

From source file:com.eightkdata.mongowp.bson.netty.NettyBsonString.java

License:Open Source License

private int getStringLenght(@Tight ByteBuf byteBuf) {
    return byteBuf.readableBytes();
}

From source file:com.eightkdata.mongowp.bson.netty.OffHeapValuesNettyBsonLowLevelReader.java

License:Open Source License

@Override
BsonDocument readDocument(@Loose @ModifiesIndexes ByteBuf byteBuf) throws NettyBsonReaderException {
    int length = byteBuf.readInt();
    int significantLenght = length - 4 - 1;

    ByteBuf significantSlice = byteBuf.readSlice(significantLenght);

    byte b = byteBuf.readByte();
    assert b == 0x00;

    ArrayList<BsonDocument.Entry<?>> list = new ArrayList<>();
    while (significantSlice.readableBytes() > 0) {
        Entry<?> entry = readDocumentEntry(significantSlice);
        list.add(entry);//from  w  w  w  . ja  v a  2  s. com
    }
    return new ListBasedBsonDocument(list);
}

From source file:com.eightkdata.mongowp.bson.netty.pool.ShortStringPoolPolicy.java

License:Open Source License

protected final boolean isShort(ByteBuf input) {
    return input.readableBytes() < sizeLimit;
}