Example usage for io.netty.buffer ByteBuf discardReadBytes

List of usage examples for io.netty.buffer ByteBuf discardReadBytes

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Introduction

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

Prototype

public abstract ByteBuf discardReadBytes();

Source Link

Document

Discards the bytes between the 0th index and readerIndex .

Usage

From source file:com.github.subalakr.yasjl.Bench.java

License:Apache License

public void run() throws Exception {
    for (int i = 0; i < iterations; i++) {
        ByteBuf inBuf = Unpooled.buffer();
        JsonPointer[] jsonPointers = { new JsonPointer("/metrics/resultCount", new JsonPointerCB1() {
            public void call(ByteBuf buf) {
                buf.release();//from  ww w  . j a  v  a 2s  . com
            }
        }), new JsonPointer("/metrics/warningCount", new JsonPointerCB1() {
            public void call(ByteBuf buf) {
                buf.release();
            }
        }), new JsonPointer("/metrics/errorCount", new JsonPointerCB1() {
            public void call(ByteBuf buf) {
                buf.release();
            }
        }), new JsonPointer("/results/-", new JsonPointerCB1() {
            public void call(ByteBuf buf) {
                rowsEmitted.getAndIncrement();
                buf.release();
            }
        }), new JsonPointer("/errors/-", new JsonPointerCB1() {
            public void call(ByteBuf buf) {
                buf.release();
            }
        }), new JsonPointer("/warnings/-", new JsonPointerCB1() {
            public void call(ByteBuf buf) {
                buf.release();
            }
        }), };
        parser.initialize(inBuf, jsonPointers);
        inBuf.writeBytes(inJson.getBytes());
        long start = System.currentTimeMillis();
        parser.parse();
        long currentRun = System.currentTimeMillis() - start;
        totalDuration += currentRun;
        totalBytesRead += inJsonSz;
        inBuf.discardReadBytes();
        inBuf.release();
    }
}

From source file:com.mapr.franz.netty.FranzClientHandler.java

License:Apache License

@Override
public void inboundBufferUpdated(ChannelHandlerContext ctx, ByteBuf in) {
    ByteBuf out = ctx.nextOutboundByteBuffer();
    out.discardReadBytes();
    out.writeBytes(in);/* w  w  w  .  j a  v  a 2s. com*/
    ctx.flush();
}

From source file:com.mastfrog.scamper.MessageTypeRegistry.java

License:Open Source License

/**
 * Decode a message type from the <i>current position</i> of the
 * passed ByteBuf./*ww  w .jav a  2 s  .  co m*/
 * @param buf
 * @return 
 */
public MessageType forByteBuf(ByteBuf buf) {
    if (buf.readableBytes() >= 2) {
        byte one = buf.readByte();
        byte two = buf.readByte();
        for (MessageType mt : types) {
            if (mt.match(one, two)) {
                buf.discardReadBytes();
                return mt;
            }
        }
        return MessageType.createUnknown(one, two);
    }
    buf.resetReaderIndex();
    return MessageType.createUnknown((byte) 0, (byte) 0);
}

From source file:com.witjit.game.server.communication.handler.ClientDispatchHandler.java

/**
 *
 * @param ctx//from ww  w .  ja v  a  2  s. c o  m
 * @param msg
 * @throws Exception
 */
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    if (!(msg instanceof ByteBuf)) {
        //TODO: handle error message.
        return;
    }

    ByteBuf mb = (ByteBuf) msg;

    byte target = mb.readByte();
    short id = mb.readShort();
    mb.discardReadBytes();

    ClientChannelData channelData = ChannelData.get(ctx.channel());
    ClientSessionPoint sessionPoint = channelData.getBindSessionPoint();
    sessionPoint.transit(target, MessageID.make(id), msg);
}

From source file:com.zextras.modules.chat.server.xmpp.netty.XmlSubTagTokenizer.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List<Object> objects)
        throws Exception {
    int idx = byteBuf.bytesBefore(sTokenEnd);
    if (idx == -1) {
        return;//from  w  ww  .  j  a  v  a2  s.  co m
    }

    String token = byteBuf.toString(0, idx + 1, mCharset);
    byteBuf.readerIndex(byteBuf.readerIndex() + idx + 1);
    byteBuf.discardReadBytes();
    objects.add(token);
}

From source file:impl.underdark.transport.bluetooth.BtLink.java

License:Open Source License

private void inputLoop() {
    // Input I/O thread.

    sendHelloFrame();//from  w  w  w.j  a  v  a  2  s.  c o  m

    int bufferSize = 4096;
    ByteBuf inputData = Unpooled.buffer(bufferSize);
    inputData.order(ByteOrder.BIG_ENDIAN);

    try {
        int len;
        while (true) {
            inputData.ensureWritable(bufferSize, true);
            len = inputStream.read(inputData.array(), inputData.writerIndex(), bufferSize);
            if (len <= 0)
                break;

            inputData.writerIndex(inputData.writerIndex() + len);

            if (!formFrames(inputData))
                break;

            inputData.discardReadBytes();
            inputData.capacity(inputData.writerIndex() + bufferSize);
        } // while
    } catch (InterruptedIOException ex) {
        Logger.warn("bt input timeout: {}", ex);
        try {
            inputStream.close();
        } catch (IOException ioex) {
        }

        notifyDisconnect();
        return;
    } catch (Exception ex) {
        Logger.warn("bt input read failed.", ex);
        try {
            inputStream.close();
        } catch (IOException ioex) {
        }

        notifyDisconnect();
        return;
    }

    Logger.debug("bt input read end.");
    notifyDisconnect();

}

From source file:impl.underdark.transport.nsd.NsdLink.java

License:Open Source License

private void inputLoop() {
    // Input thread.
    final int bufferSize = 4096;
    ByteBuf inputData = Unpooled.buffer(bufferSize);
    inputData.order(ByteOrder.BIG_ENDIAN);

    try {//  ww w. ja v  a2s  .  c  o m
        int len;
        while (true) {
            inputData.ensureWritable(bufferSize, true);
            len = inputStream.read(inputData.array(), inputData.writerIndex(), bufferSize);
            if (len <= 0)
                break;

            inputData.writerIndex(inputData.writerIndex() + len);

            if (!formFrames(inputData))
                break;

            inputData.discardReadBytes();
            inputData.capacity(inputData.writerIndex() + bufferSize);
        } // while
    } catch (InterruptedIOException ex) {
        Logger.warn("nsd input timeout: {}", ex);
        try {
            inputStream.close();
        } catch (IOException ioex) {
        }

        notifyDisconnect();
        return;
    } catch (Exception ex) {
        Logger.warn("nsd input read failed: {}", ex);
        try {
            inputStream.close();
        } catch (IOException ioex) {
        }

        notifyDisconnect();
        return;
    }

    Logger.debug("nsd input read end");
    notifyDisconnect();
}

From source file:info.zhoumin.dat.AbstractDoubleArrayTrie.java

License:Apache License

private boolean branchInTail(int sepNode, int c, ByteBuf suffix, V data) {
    /* adjust separate point in old path */
    int oldTail = getTailIndex(sepNode);
    ByteBuf oldSuffix = tail.getSuffix(oldTail);
    if (oldSuffix == null)
        return false;

    byte oldByte, newByte;
    int s = sepNode;
    suffix.resetReaderIndex();// w w  w .  j  a  va2s .  c  o m
    oldSuffix.resetReaderIndex();
    do {
        newByte = suffix.readByte();
        oldByte = oldSuffix.readByte();
        if (newByte != oldByte)
            break;
        int t = insertBranch(s, newByte + 1);
        if (TRIE_INDEX_ERROR == t) {
            // /* failed, undo previous insertions and return error */
            // da_prune_upto (trie->da, sep_node, s);
            // trie_da_set_tail_index (trie->da, sep_node, old_tail);
            // throw new RuntimeException("error happened!");
            return false;
        }
        s = t;
    } while (suffix.isReadable() && oldSuffix.isReadable());

    int oldDA = insertBranch(s, oldByte + 1);
    if (TRIE_INDEX_ERROR == oldDA) {
        // /* failed, undo previous insertions and return error */
        // da_prune_upto (trie->da, sep_node, s);
        // trie_da_set_tail_index (trie->da, sep_node, old_tail);
        // throw new RuntimeException("error happened!");
        return false;
    }

    tail.setSuffix(oldTail, oldSuffix.discardReadBytes().copy());
    setTailIndex(oldDA, oldTail);

    /* insert the new branch at the new separate point */
    return branchInBranch(s, newByte + 1, suffix.discardReadBytes().copy(), data);
}

From source file:io.lettuce.core.protocol.CommandHandler.java

License:Apache License

protected void decode(ChannelHandlerContext ctx, ByteBuf buffer) throws InterruptedException {

    if (pristine && stack.isEmpty() && buffer.isReadable()) {

        if (debugEnabled) {
            logger.debug("{} Received response without a command context (empty stack)", logPrefix());
        }//from   w  ww  .j a v a2 s. co  m

        if (consumeResponse(buffer)) {
            pristine = false;
        }

        return;
    }

    while (canDecode(buffer)) {

        RedisCommand<?, ?, ?> command = stack.peek();
        if (debugEnabled) {
            logger.debug("{} Stack contains: {} commands", logPrefix(), stack.size());
        }

        pristine = false;

        try {
            if (!decode(ctx, buffer, command)) {
                return;
            }
        } catch (Exception e) {

            ctx.close();
            throw e;
        }

        if (isProtectedMode(command)) {
            onProtectedMode(command.getOutput().getError());
        } else {

            if (canComplete(command)) {
                stack.poll();

                try {
                    complete(command);
                } catch (Exception e) {
                    logger.warn("{} Unexpected exception during request: {}", logPrefix, e.toString(), e);
                }
            }
        }

        afterDecode(ctx, command);
    }

    if (buffer.refCnt() != 0) {
        buffer.discardReadBytes();
    }
}

From source file:io.lettuce.core.pubsub.PubSubCommandHandler.java

License:Apache License

@SuppressWarnings("unchecked")
@Override/*w  w w . jav a 2s .co m*/
protected void decode(ChannelHandlerContext ctx, ByteBuf buffer) throws InterruptedException {

    if (!getStack().isEmpty()) {
        super.decode(ctx, buffer);
    }

    ReplayOutput<K, V> replay;
    while ((replay = queue.poll()) != null) {

        replay.replay(output);
        endpoint.notifyMessage(output);
        output = new PubSubOutput<>(codec);
    }

    while (super.getStack().isEmpty() && buffer.isReadable()) {

        if (!super.decode(buffer, output)) {
            return;
        }

        endpoint.notifyMessage(output);
        output = new PubSubOutput<>(codec);
    }

    buffer.discardReadBytes();

}