Example usage for io.netty.channel Channel alloc

List of usage examples for io.netty.channel Channel alloc

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Introduction

In this page you can find the example usage for io.netty.channel Channel alloc.

Prototype

ByteBufAllocator alloc();

Source Link

Document

Return the assigned ByteBufAllocator which will be used to allocate ByteBuf s.

Usage

From source file:alluxio.worker.netty.DataServerBlockReadHandler.java

License:Apache License

@Override
protected DataBuffer getDataBuffer(Channel channel, long offset, int len) throws IOException {
    BlockReader blockReader = ((BlockReadRequestInternal) mRequest).mBlockReader;
    Preconditions.checkArgument(blockReader.getChannel() instanceof FileChannel,
            "Only FileChannel is supported!");
    switch (mTransferType) {
    case MAPPED:/*w  w  w.  jav a2s  . c o  m*/
        ByteBuf buf = channel.alloc().buffer(len, len);
        try {
            FileChannel fileChannel = (FileChannel) blockReader.getChannel();
            Preconditions.checkState(fileChannel.position() == offset);
            while (buf.writableBytes() > 0 && buf.writeBytes(fileChannel, buf.writableBytes()) != -1) {
            }
            return new DataNettyBufferV2(buf);
        } catch (Throwable e) {
            buf.release();
            throw e;
        }
    case TRANSFER: // intend to fall through as TRANSFER is the default type.
    default:
        return new DataFileChannel((FileChannel) blockReader.getChannel(), offset, len);
    }
}

From source file:alluxio.worker.netty.DataServerUfsBlockReadHandler.java

License:Apache License

@Override
protected DataBuffer getDataBuffer(Channel channel, long offset, int len) throws IOException {
    BlockReader blockReader = ((UfsBlockReadRequestInternal) mRequest).mBlockReader;
    // This buf is released by netty.
    ByteBuf buf = channel.alloc().buffer(len, len);
    try {/*from  ww  w  . j a  v  a2 s  .  com*/
        while (buf.writableBytes() > 0 && blockReader.transferTo(buf) != -1) {
        }
        return new DataNettyBufferV2(buf);
    } catch (Throwable e) {
        buf.release();
        throw e;
    }
}

From source file:alluxio.worker.netty.DataServerUFSFileReadHandler.java

License:Apache License

@Override
protected DataBuffer getDataBuffer(Channel channel, long offset, int len) throws IOException {
    ByteBuf buf = channel.alloc().buffer(len, len);
    try {/*  www.  j av  a 2  s.c o  m*/
        InputStream in = ((FileReadRequestInternal) mRequest).mInputStream;
        if (in != null) { // if we have not reached the end of the file
            while (buf.writableBytes() > 0 && buf.writeBytes(in, buf.writableBytes()) != -1) {
            }
        }
        if (buf.readableBytes() == 0) {
            buf.release();
            return null;
        }
        return new DataNettyBufferV2(buf);
    } catch (Throwable e) {
        buf.release();
        throw e;
    }
}

From source file:com.addthis.meshy.SourceHandler.java

License:Apache License

protected boolean sendToSingleTarget(Channel channel, byte[] data) {
    int sendType = MeshyConstants.KEY_EXISTING;
    final ByteBufAllocator alloc = channel.alloc();
    final ByteBuf buffer = allocateSendBuffer(alloc, sendType, session, data);

    final int reportBytes = data.length;
    log.trace("{} send {} to {}", this, buffer.capacity(), channel);
    channel.writeAndFlush(buffer.duplicate().retain()).addListener(ignored -> {
        master.sentBytes(reportBytes);//ww  w .  jav  a 2 s.  com
    });
    buffer.release();
    return true;
}

From source file:com.agrn.senqm.network.connection.Connection.java

License:Open Source License

public void sendMessage(String message) {
    Channel channel = channelFuture.channel();

    ByteBuf buffer = channel.alloc().buffer(message.length());
    for (char character : message.toCharArray())
        buffer.writeChar(character);/*from   ww  w.  ja  v  a2 s .  c  o  m*/

    channel.writeAndFlush(buffer);
}

From source file:com.ahanda.techops.noty.clientTest.ClientHandler.java

License:Apache License

private void getEvents(Channel ch, FullHttpResponse resp) {
    StringWriter estr = new StringWriter();
    getEvents.write(estr);//from  w  w  w  .  ja  v  a2s.  c  om
    String contentStr = estr.toString();

    FullHttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.POST, "/events/get",
            ch.alloc().buffer().writeBytes(contentStr.getBytes()));

    request.headers().set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
    request.headers().set(HttpHeaders.Names.ACCEPT_ENCODING, HttpHeaders.Values.GZIP);
    request.headers().set(HttpHeaders.Names.CONTENT_TYPE, "application/json");

    request.headers().set(HttpHeaders.Names.CONTENT_LENGTH, request.content().readableBytes());
    // Set some example cookies.
    request.headers().set(HttpHeaders.Names.COOKIE, ClientCookieEncoder.encode(sessCookies));

    l.info("getevents bytes {}", request.content().readableBytes());

    // Send the HTTP request.
    ch.writeAndFlush(request);
}

From source file:com.ahanda.techops.noty.clientTest.ClientHandler.java

License:Apache License

public void login(Channel ch, JSONObject credential) {
    StringWriter estr = new StringWriter();
    credential.write(estr);/*from   w w w.  j ava2s  .com*/
    String contentStr = estr.toString();
    FullHttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.POST, "/login",
            ch.alloc().buffer().writeBytes(contentStr.getBytes()));

    request.headers().set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
    request.headers().set(HttpHeaders.Names.ACCEPT_ENCODING, HttpHeaders.Values.GZIP);
    request.headers().set(HttpHeaders.Names.CONTENT_TYPE, "application/json");
    if (sessCookies != null)
        request.headers().set(HttpHeaders.Names.COOKIE, ClientCookieEncoder.encode(sessCookies));

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

    l.info("login request {}", request);

    // Send the HTTP request.
    ch.writeAndFlush(request);
}

From source file:com.ahanda.techops.noty.clientTest.ClientHandler.java

License:Apache License

public void pubEvent(Channel ch, JSONObject e, FullHttpResponse resp) {
    // Prepare the HTTP request.
    JSONArray es = new JSONArray();
    es.put(e);/* w  w w  . j a  v a2 s. co  m*/

    StringWriter estr = new StringWriter();
    es.write(estr);
    String contentStr = estr.toString();
    FullHttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.POST, "/events",
            ch.alloc().buffer().writeBytes(contentStr.getBytes()));

    request.headers().set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
    request.headers().set(HttpHeaders.Names.ACCEPT_ENCODING, HttpHeaders.Values.GZIP);
    request.headers().set(HttpHeaders.Names.CONTENT_TYPE, "application/json");

    request.headers().set(HttpHeaders.Names.CONTENT_LENGTH, request.content().readableBytes());
    // Set some example cookies.
    request.headers().set(HttpHeaders.Names.COOKIE, ClientCookieEncoder.encode(sessCookies));

    l.info("PUB Event request {}", request);

    // Send the HTTP request.
    ch.writeAndFlush(request);
}

From source file:com.facebook.nifty.core.TNiftyTransport.java

License:Apache License

public TNiftyTransport(Channel channel, ThriftMessage in) {
    this.channel = channel;
    this.in = in;
    this.out = channel.alloc().heapBuffer(DEFAULT_OUTPUT_BUFFER_SIZE);

    in.getBuffer().retain();//w w w .  j a  v a  2s.  c om
    out.retain();
}

From source file:com.google.devtools.build.lib.remote.blobstore.http.HttpBlobStore.java

License:Open Source License

public HttpBlobStore(URI uri, int timeoutMillis, @Nullable final Credentials creds) throws Exception {
    boolean useTls = uri.getScheme().equals("https");
    if (uri.getPort() == -1) {
        int port = useTls ? 443 : 80;
        uri = new URI(uri.getScheme(), uri.getUserInfo(), uri.getHost(), port, uri.getPath(), uri.getQuery(),
                uri.getFragment());//from w  w w. ja va 2  s  . co  m
    }
    this.uri = uri;
    final SslContext sslCtx;
    if (useTls) {
        // OpenSsl gives us a > 2x speed improvement on fast networks, but requires netty tcnative
        // to be there which is not available on all platforms and environments.
        SslProvider sslProvider = OpenSsl.isAvailable() ? SslProvider.OPENSSL : SslProvider.JDK;
        sslCtx = SslContextBuilder.forClient().sslProvider(sslProvider).build();
    } else {
        sslCtx = null;
    }
    Bootstrap clientBootstrap = new Bootstrap().channel(NioSocketChannel.class)
            .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, timeoutMillis).group(eventLoop)
            .remoteAddress(uri.getHost(), uri.getPort());
    downloadChannels = new SimpleChannelPool(clientBootstrap, new ChannelPoolHandler() {
        @Override
        public void channelReleased(Channel ch) {
            ch.pipeline().remove("read-timeout-handler");
        }

        @Override
        public void channelAcquired(Channel ch) {
            ch.pipeline().addFirst("read-timeout-handler", new ReadTimeoutHandler(timeoutMillis));
        }

        @Override
        public void channelCreated(Channel ch) {
            ChannelPipeline p = ch.pipeline();
            p.addFirst("read-timeout-handler", new ReadTimeoutHandler(timeoutMillis));
            if (sslCtx != null) {
                SSLEngine engine = sslCtx.newEngine(ch.alloc());
                engine.setUseClientMode(true);
                p.addFirst(new SslHandler(engine));
            }
            p.addLast(new HttpClientCodec());
            p.addLast(new HttpDownloadHandler(creds));
        }
    });
    uploadChannels = new SimpleChannelPool(clientBootstrap, new ChannelPoolHandler() {
        @Override
        public void channelReleased(Channel ch) {
        }

        @Override
        public void channelAcquired(Channel ch) {
        }

        @Override
        public void channelCreated(Channel ch) {
            ChannelPipeline p = ch.pipeline();
            if (sslCtx != null) {
                SSLEngine engine = sslCtx.newEngine(ch.alloc());
                engine.setUseClientMode(true);
                p.addFirst(new SslHandler(engine));
            }
            p.addLast(new HttpResponseDecoder());
            // The 10KiB limit was chosen at random. We only expect HTTP servers to respond with
            // an error message in the body and that should always be less than 10KiB.
            p.addLast(new HttpObjectAggregator(10 * 1024));
            p.addLast(new HttpRequestEncoder());
            p.addLast(new ChunkedWriteHandler());
            p.addLast(new HttpUploadHandler(creds));
        }
    });
    this.creds = creds;
}