Example usage for io.netty.buffer ByteBuf release

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

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Introduction

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

Prototype

boolean release();

Source Link

Document

Decreases the reference count by 1 and deallocates this object if the reference count reaches at 0 .

Usage

From source file:com.shouxun.server.netty.tcp.EchoServerHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {

    ByteBuf buffer = (ByteBuf) msg;

    for (int i = 0; i < buffer.capacity(); i++) {
        byte b = buffer.getByte(i);
        sb.append((char) b);
    }/*from  www.  j  ava 2 s.c  o m*/
    buffer.release();
}

From source file:com.spotify.ffwd.riemann.RiemannFrameDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    if (in.readableBytes() < 4) {
        return;//  w  w w  .  j ava  2s  .  c  o  m
    }

    final long length = in.getUnsignedInt(0);

    if (length > MAX_SIZE) {
        throw new CorruptedFrameException(
                String.format("frame size (%s) larger than max (%d)", length, MAX_SIZE));
    }

    final int intLength = (int) length;

    if (in.readableBytes() < (4 + length)) {
        return;
    }

    in.skipBytes(4);
    final ByteBuf frame = in.readBytes(intLength);

    try {
        out.add(serializer.parse0(frame));
    } finally {
        frame.release();
    }
}

From source file:com.spotify.ffwd.riemann.RiemannResponder.java

License:Apache License

private ByteBuf ack(boolean ok) throws IOException {
    final Proto.Msg m = Proto.Msg.newBuilder().setOk(ok).build();

    final ByteBuf b = Unpooled.buffer();

    try (final ByteBufOutputStream output = new ByteBufOutputStream(b)) {
        m.writeTo(output);//w  w  w.j  a v  a  2 s  . c o  m

        final ByteBuf frame = output.buffer();
        final ByteBuf buffer = Unpooled.buffer(4 + frame.readableBytes());

        buffer.writeInt(frame.readableBytes());
        buffer.writeBytes(frame);

        return buffer;
    } finally {
        b.release();
    }
}

From source file:com.spotify.ffwd.riemann.RiemannSerialization.java

License:Apache License

public ByteBuf encodeAll0(Collection<Object> messages) throws IOException {
    final Proto.Msg.Builder builder = Proto.Msg.newBuilder();

    for (final Object d : messages) {
        if (d instanceof Metric) {
            builder.addEvents(encodeMetric0((Metric) d));
        } else if (d instanceof Event) {
            builder.addEvents(encodeEvent0((Event) d));
        }/*from ww w.j a  va  2s.com*/
    }

    final Proto.Msg m = builder.build();

    final ByteBuf work = Unpooled.buffer();

    try (final ByteBufOutputStream output = new ByteBufOutputStream(work)) {
        m.writeTo(output);

        final ByteBuf result = Unpooled.buffer();

        result.writeInt(work.writerIndex());
        result.writeBytes(work);

        return result;
    } finally {
        work.release();
    }
}

From source file:com.spotify.netty.zmtp.Benchmark.java

License:Apache License

@Ignore("this is a benchmark")
@Test/*  w  w w . j  a  v  a 2  s.  co  m*/
public void benchmarkEncoding() throws ZMTPMessageParsingException {
    final ProgressMeter meter = new ProgressMeter("messages");
    ZMTPMessage message = new ZMTPMessage(
            asList(ZMTPFrame.create("first identity frame"), ZMTPFrame.create("second identity frame")),
            asList(ZMTPFrame.create("datadatadatadatadatadatadatadatadatadata"),
                    ZMTPFrame.create("datadatadatadatadatadatadatadatadatadata"),
                    ZMTPFrame.create("datadatadatadatadatadatadatadatadatadata"),
                    ZMTPFrame.create("datadatadatadatadatadatadatadatadatadata")));
    final ZMTPMessageParser parser = new ZMTPMessageParser(true, 1024 * 1024, 1);
    long sum = 0;
    for (long i = 0; i < 1000000; i++) {
        for (long j = 0; j < 1000; j++) {
            final ByteBuf buffer = Unpooled.buffer(ZMTPUtils.messageSize(message, true, 1));
            ZMTPUtils.writeMessage(message, buffer, true, 1);
            message = parser.parse(buffer).getMessage();

            sum += buffer.readableBytes();
            buffer.release();
        }
        meter.inc(1000, 0);
    }
    System.out.println(sum);
}

From source file:com.spotify.netty4.handler.codec.zmtp.ZMTPMessage.java

License:Apache License

@Override
protected void deallocate() {
    for (final ByteBuf frame : frames) {
        frame.release();
    }
}

From source file:com.spotify.netty4.handler.codec.zmtp.ZMTPMessageDecoder.java

License:Apache License

@Override
public void close() {
    for (final ByteBuf frame : frames) {
        frame.release();
    }/* w w w.  j av a  2s.c o  m*/
    frames.clear();
}

From source file:com.streamsets.pipeline.lib.parser.net.TestDelimitedLengthFieldBasedFrameDecoder.java

License:Apache License

private void writeStringAndAssert(EmbeddedChannel channel, String value, Charset charset,
        boolean randomlyPartition, boolean expectFrameTooLarge) {
    String frame = makeFrame(value, charset);

    try {/* w  ww  . ja  v a 2  s . c o m*/
        if (randomlyPartition) {
            for (List<Byte> chunk : getRandomByteSlices(frame.getBytes())) {
                channel.writeInbound(Unpooled.copiedBuffer(Bytes.toArray(chunk)));
            }
        } else {
            channel.writeInbound(Unpooled.copiedBuffer(frame, charset));
        }
    } catch (TooLongFrameException e) {
        if (!expectFrameTooLarge) {
            Assert.fail("TooLongFrameException unexpectedly thrown");
        } else {
            Assert.assertNull(channel.readInbound());
        }
    }
    if (!expectFrameTooLarge) {
        ByteBuf in = (ByteBuf) channel.readInbound();
        Assert.assertEquals(value, in.toString(charset));
        in.release();
    }
}

From source file:com.tc.websocket.server.handler.WebSocketValidationHandler.java

License:Apache License

/**
 * Send http response./*from ww w .  ja va2s.  c om*/
 *
 * @param ctx the ctx
 * @param req the req
 * @param res the res
 */
private static void sendHttpResponse(ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res) {
    // Generate an error page if response getStatus code is not OK (200).
    if (res.status().code() != 200) {
        ByteBuf buf = Unpooled.copiedBuffer(res.status().toString(), CharsetUtil.UTF_8);
        res.content().writeBytes(buf);
        buf.release();
        HttpUtil.setContentLength(res, res.content().readableBytes());
    }

    // Send the response and close the connection if necessary.
    ChannelFuture f = ctx.channel().writeAndFlush(res);
    if (!HttpUtil.isKeepAlive(req) || res.status().code() != 200) {
        f.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:com.tesora.dve.db.mysql.libmy.MyBinaryResultRow.java

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) throws PEException {
    int expectedFieldCount = fieldConverters.size();
    int expectedBitmapLength = MyNullBitmap.computeSize(expectedFieldCount, MyNullBitmap.BitmapType.RESULT_ROW);
    cb = cb.order(ByteOrder.LITTLE_ENDIAN);
    cb.skipBytes(1);//skip the bin row marker.

    byte[] nullBitmap = new byte[expectedBitmapLength];
    cb.readBytes(nullBitmap);//w  ww  .  j a  v a 2 s  . com
    MyNullBitmap resultBitmap = new MyNullBitmap(nullBitmap, expectedFieldCount,
            MyNullBitmap.BitmapType.RESULT_ROW);

    ByteBuf values = cb;

    for (int i = 0; i < expectedFieldCount; i++) {
        ByteBuf existing = fieldSlices.get(i);
        ByteBuf nextSlice = null;
        int startIndex = values.readerIndex();
        if (!resultBitmap.getBit(i + 1)) {
            fieldConverters.get(i).readObject(values);//TODO: we throw out the unmarshalled value, we could cache it.
            int endingOffset = values.readerIndex();
            nextSlice = values.slice(startIndex, endingOffset - startIndex);
        }

        if (existing != null)
            existing.release();
        fieldSlices.set(i, nextSlice);
    }
    if (cb.readableBytes() > 0) {
        log.warn("Decoded binary row had {} leftover bytes, re-encoding may fail.", cb.readableBytes());
        cb.skipBytes(cb.readableBytes());//consume rest of buffer.
    }
}