Example usage for io.netty.buffer Unpooled buffer

List of usage examples for io.netty.buffer Unpooled buffer

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Introduction

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

Prototype

public static ByteBuf buffer()

Source Link

Document

Creates a new big-endian Java heap buffer with reasonably small initial capacity, which expands its capacity boundlessly on demand.

Usage

From source file:cc.agentx.client.net.nio.XConnectHandler.java

License:Apache License

@Override
public void channelRead0(final ChannelHandlerContext ctx, final SocksCmdRequest request) throws Exception {
    boolean proxyMode = isAgentXNeeded(request.host());
    log.info("\tClient -> Proxy           \tTarget {}:{} [{}]", request.host(), request.port(),
            proxyMode ? "AGENTX" : "DIRECT");
    Promise<Channel> promise = ctx.executor().newPromise();
    promise.addListener(new FutureListener<Channel>() {
        @Override// ww  w . j  av  a2  s  .c  o  m
        public void operationComplete(final Future<Channel> future) throws Exception {
            final Channel outboundChannel = future.getNow();
            if (future.isSuccess()) {
                ctx.channel().writeAndFlush(new SocksCmdResponse(SocksCmdStatus.SUCCESS, request.addressType()))
                        .addListener(channelFuture -> {
                            ByteBuf byteBuf = Unpooled.buffer();
                            request.encodeAsByteBuf(byteBuf);
                            if (byteBuf.hasArray()) {
                                byte[] xRequestBytes = new byte[byteBuf.readableBytes()];
                                byteBuf.getBytes(0, xRequestBytes);

                                if (proxyMode) {
                                    // handshaking to remote proxy
                                    xRequestBytes = requestWrapper.wrap(xRequestBytes);
                                    outboundChannel.writeAndFlush(Unpooled.wrappedBuffer(
                                            exposeRequest ? xRequestBytes : wrapper.wrap(xRequestBytes)));
                                }

                                // task handover
                                ReferenceCountUtil.retain(request); // auto-release? a trap?
                                ctx.pipeline().remove(XConnectHandler.this);
                                outboundChannel.pipeline().addLast(new XRelayHandler(ctx.channel(),
                                        proxyMode ? wrapper : rawWrapper, false));
                                ctx.pipeline().addLast(new XRelayHandler(outboundChannel,
                                        proxyMode ? wrapper : rawWrapper, true));
                            }
                        });
            } else {
                ctx.channel()
                        .writeAndFlush(new SocksCmdResponse(SocksCmdStatus.FAILURE, request.addressType()));

                if (ctx.channel().isActive()) {
                    ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
                }
            }
        }
    });

    String host = request.host();
    int port = request.port();
    if (host.equals(config.getConsoleDomain())) {
        host = "localhost";
        port = config.getConsolePort();
    } else if (proxyMode) {
        host = config.getServerHost();
        port = config.getServerPort();
    }

    // ping target
    bootstrap.group(ctx.channel().eventLoop()).channel(NioSocketChannel.class)
            .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 10000).option(ChannelOption.SO_KEEPALIVE, true)
            .handler(new XPingHandler(promise, System.currentTimeMillis())).connect(host, port)
            .addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    if (!future.isSuccess()) {
                        ctx.channel().writeAndFlush(
                                new SocksCmdResponse(SocksCmdStatus.FAILURE, request.addressType()));
                        if (ctx.channel().isActive()) {
                            ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
                        }
                    }
                }
            });
}

From source file:chapter01.EchoClientHandler.java

License:Apache License

@Override
public void channelActive(ChannelHandlerContext ctx) {
    String sendMessage = "Hello netty";

    ByteBuf messageBuffer = Unpooled.buffer();
    messageBuffer.writeBytes(sendMessage.getBytes());

    StringBuilder builder = new StringBuilder();
    builder.append(" ? [");
    builder.append(sendMessage);/*from ww  w  . j  av  a 2 s.  c o m*/
    builder.append("]");

    //System.out.println(builder.toString());
    log.info(String.valueOf(builder));
    ctx.writeAndFlush(messageBuffer);
}

From source file:cn.liutils.api.player.ControlData.java

License:Open Source License

@Override
public void saveNBTData(NBTTagCompound tag) {
    ByteBuf buf = Unpooled.buffer();
    toBytes(buf);
    tag.setByteArray(IDENTIFIER, buf.array());
}

From source file:co.rsk.rpc.netty.JsonRpcWeb3ServerHandler.java

License:Open Source License

@Override
protected void channelRead0(ChannelHandlerContext ctx, ByteBufHolder request) throws Exception {
    ByteBuf responseContent = Unpooled.buffer();
    int responseCode;
    try (ByteBufOutputStream os = new ByteBufOutputStream(responseContent);
            ByteBufInputStream is = new ByteBufInputStream(request.content().retain())) {

        responseCode = jsonRpcServer.handleRequest(is, os);
    } catch (Exception e) {
        String unexpectedErrorMsg = "Unexpected error";
        LOGGER.error(unexpectedErrorMsg, e);
        int errorCode = ErrorResolver.JsonError.CUSTOM_SERVER_ERROR_LOWER;
        responseContent = buildErrorContent(errorCode, unexpectedErrorMsg);
        responseCode = errorCode;/*from w  w  w. j av a 2s .  c om*/
    }

    ctx.fireChannelRead(new Web3Result(responseContent, responseCode));
}

From source file:com.addthis.hydra.store.db.DBKey.java

License:Apache License

@Override
public byte[] deltaEncode(@Nonnull IPageDB.Key baseKey) {
    long offset = id - baseKey.id();
    ByteBuf buffer = Unpooled.buffer();
    Varint.writeSignedVarLong(offset, buffer);
    if (key != null) {
        buffer.writeBytes(key.toBytes());
    }//from ww w.  j av  a2s . com
    return Arrays.copyOf(buffer.array(), buffer.readableBytes());
}

From source file:com.barchart.http.server.HttpRequestChannelHandler.java

License:BSD License

private void sendServerError(final ChannelHandlerContext ctx, final ServerException cause) throws Exception {

    if (ctx.channel().isActive()) {

        final ByteBuf content = Unpooled.buffer();

        content.writeBytes(//from   w ww.ja v  a2s.  c o  m
                (cause.getStatus().code() + " " + cause.getStatus().reasonPhrase() + " - " + cause.getMessage())
                        .getBytes());

        final FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, cause.getStatus());

        response.headers().set(HttpHeaders.Names.CONTENT_LENGTH, content.readableBytes());

        response.content().writeBytes(content);

        ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);

    }

}

From source file:com.basho.riak.client.core.netty.RiakHttpMessageHandlerTest.java

License:Apache License

@Test
public void notifiesListenerOnComplete() throws Exception {
    HttpResponse response = mock(HttpResponse.class);
    HttpResponseStatus status = mock(HttpResponseStatus.class);
    doReturn(status).when(response).getStatus();
    doReturn(200).when(status).code();/*from  w  ww .jav  a  2  s. c  o m*/
    LastHttpContent lastContent = mock(LastHttpContent.class);
    ByteBuf bb = Unpooled.buffer();
    bb.writeByte((byte) 1);
    doReturn(bb).when(lastContent).data();
    handler.messageReceived(mockContext, response);
    handler.messageReceived(mockContext, lastContent);

    verify(mockListener).onSuccess(Matchers.any(Channel.class), Matchers.any(RiakHttpMessage.class));
}

From source file:com.basho.riak.client.core.netty.RiakHttpMessageHandlerTest.java

License:Apache License

@Test
public void removesSelfFromPipelineOnCompletion() throws Exception {
    HttpResponse response = mock(HttpResponse.class);
    HttpResponseStatus status = mock(HttpResponseStatus.class);
    doReturn(status).when(response).getStatus();
    doReturn(200).when(status).code();/*from  ww w  .  ja v  a2 s  . c  o m*/
    LastHttpContent lastContent = mock(LastHttpContent.class);
    ByteBuf bb = Unpooled.buffer();
    bb.writeByte((byte) 1);
    doReturn(bb).when(lastContent).data();
    handler.messageReceived(mockContext, response);
    handler.messageReceived(mockContext, lastContent);

    verify(mockPipeline).remove(handler);
}

From source file:com.basho.riak.client.core.netty.RiakHttpMessageHandlerTest.java

License:Apache License

@Test
public void producesCorrectResponse() throws Exception {
    HttpResponse response = mock(HttpResponse.class);
    HttpResponseStatus status = mock(HttpResponseStatus.class);
    doReturn(status).when(response).getStatus();
    doReturn(200).when(status).code();/* w  w  w.  java  2  s. c o m*/
    HttpContent content = mock(HttpContent.class);
    LastHttpContent lastContent = mock(LastHttpContent.class);

    ByteBuf bb = Unpooled.buffer();
    bb.writeByte((byte) 1);
    doReturn(bb).when(content).data();
    doReturn(bb.copy()).when(lastContent).data();

    handler.messageReceived(mockContext, response);
    handler.messageReceived(mockContext, content);
    handler.messageReceived(mockContext, lastContent);

    RiakHttpMessage message = Whitebox.getInternalState(handler, "message");

    verify(mockListener).onSuccess(mockChannel, message);
    assertEquals(message.getResponse(), response);
    byte[] bytes = new byte[] { 1, 1 };
    assertArrayEquals(message.getContent(), bytes);
}

From source file:com.basho.riak.client.core.netty.RiakMessageCodecTest.java

License:Apache License

@Before
public void setUp() throws Exception {
    code = 1;//from w w  w  .j  a v  a2  s .  c o  m
    data = new byte[SIZE_DATA];
    Arrays.fill(data, (byte) 1);

    RiakMessage pbMessage = new RiakMessage(code, data);
    RiakMessageCodec codec = new RiakMessageCodec();

    mockContext = mock(ChannelHandlerContext.class);
    buffer = Unpooled.buffer();
    Whitebox.invokeMethod(codec, "encode", mockContext, pbMessage, buffer);
}