Example usage for io.netty.channel ChannelHandlerContext alloc

Introduction

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

Prototype

ByteBufAllocator alloc();

Source Link

Document

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

Usage

From source file:com.ibasco.agql.protocols.valve.source.query.handlers.SourceQueryRequestEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext ctx, SourceServerRequest request, List<Object> out)
        throws Exception {
    SourceRequestPacket packet = request.getMessage();
    byte[] deconstructedPacket = builder.deconstruct(packet);
    if (deconstructedPacket != null && deconstructedPacket.length > 0) {
        ByteBuf buffer = ctx.alloc().buffer(deconstructedPacket.length).writeBytes(deconstructedPacket);
        out.add(new DatagramPacket(buffer, request.recipient()));
    }//from  w  w w. j  a v  a  2s. c  o m
}

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From source file:com.ibasco.agql.protocols.valve.steam.master.handlers.MasterServerRequestEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext ctx, MasterServerRequest request, List<Object> out)
        throws Exception {
    MasterServerRequestPacket packet = request.getMessage();
    byte[] deconstructedPacket = builder.deconstruct(packet);
    if (deconstructedPacket != null && deconstructedPacket.length > 0) {
        ByteBuf buffer = ctx.alloc().buffer(deconstructedPacket.length).writeBytes(deconstructedPacket);
        out.add(new DatagramPacket(buffer, request.recipient()));
    }//from  w ww. j a v  a 2s. com
}

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From source file:com.kael.surf.net.codec.LengthFieldBasedFrameDecoder.java

License:Apache License

/**
 * Extract the sub-region of the specified buffer.
 * <p>/*from   w  w w . ja  v a2s. c  o  m*/
 * If you are sure that the frame and its content are not accessed after
 * the current {@link #decode(ChannelHandlerContext, ByteBuf)}
 * call returns, you can even avoid memory copy by returning the sliced
 * sub-region (i.e. <tt>return buffer.slice(index, length)</tt>).
 * It's often useful when you convert the extracted frame into an object.
 * Refer to the source code of {@link ObjectDecoder} to see how this method
 * is overridden to avoid memory copy.
 */
protected ByteBuf extractFrame(ChannelHandlerContext ctx, ByteBuf buffer, int index, int length) {
    ByteBuf frame = ctx.alloc().buffer(length);
    frame.writeBytes(buffer, index, length);
    return frame;
}

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From source file:com.king.platform.net.http.integration.HttpPostWithInputStreamBody.java

License:Apache License

@Test
public void postBodyCustomHttpBody() throws Exception {
    final AtomicReference<byte[]> bodyContent = new AtomicReference<>();
    integrationServer.addServlet(new HttpServlet() {
        @Override/*from w  w w. j a v a2  s .c o  m*/
        protected void doPost(HttpServletRequest req, HttpServletResponse resp)
                throws ServletException, IOException {
            byte[] body = readPostBody(req);
            bodyContent.set(body);

            resp.getWriter().write(okBody);
            resp.getWriter().flush();
        }
    }, "/testOk");

    BlockingHttpCallback httpCallback = new BlockingHttpCallback();
    httpClient.createPost("http://localhost:" + port + "/testOk").content(new HttpBody() {
        @Override
        public long getContentLength() {
            return content.length;
        }

        @Override
        public String getContentType() {
            return "application/binary";
        }

        @Override
        public Charset getCharacterEncoding() {
            return StandardCharsets.ISO_8859_1;
        }

        @Override
        public ChannelFuture writeContent(final ChannelHandlerContext ctx, boolean isSecure)
                throws IOException {
            final ChannelProgressivePromise promise = ctx.newProgressivePromise();
            promise.setProgress(0, content.length);
            new Thread(new Runnable() {
                @Override
                public void run() {
                    int index = 0;
                    int length = 1024;
                    while (true) {
                        ByteBuf byteBuf = ctx.alloc().buffer(length).writeBytes(content, index, length);
                        ctx.writeAndFlush(byteBuf).awaitUninterruptibly();
                        index += length;
                        if (index >= content.length) {
                            break;
                        }

                        try {
                            Thread.sleep(100);
                        } catch (InterruptedException ignored) {
                        }

                        promise.setProgress(index, content.length);
                    }

                    promise.setSuccess();
                }
            }).start();

            return promise;
        }
    }).build().withHttpCallback(httpCallback).execute();

    httpCallback.waitForCompletion();

    assertArrayEquals(content, bodyContent.get());
    assertEquals(200, httpCallback.getStatusCode());
}

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From source file:com.king.platform.net.http.netty.request.ByteArrayHttpBody.java

License:Apache License

@Override
public ChannelFuture writeContent(ChannelHandlerContext ctx) {
    ByteBuf byteBuf = ctx.alloc().buffer(content.length).writeBytes(content);
    return ctx.write(byteBuf, ctx.newProgressivePromise());
}

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From source file:com.kixeye.kixmpp.KixmppWebSocketCodec.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, Object msg, List<Object> out) throws Exception {
    WebSocketFrame frame = null;//from w  w w.j av  a 2  s . c o m

    if (msg instanceof Element) {
        Element element = (Element) msg;

        if (element.getNamespace() == null || element.getNamespace() == Namespace.NO_NAMESPACE) {
            if ("stream".equals(element.getNamespacePrefix())) {
                element.setNamespace(Namespace.getNamespace("http://etherx.jabber.org/streams"));
            } else {
                element.setNamespace(Namespace.getNamespace("jabber:client"));

                IteratorIterable<Content> descendants = element.getDescendants();

                while (descendants.hasNext()) {
                    Content content = descendants.next();

                    if (content instanceof Element) {
                        Element descendantElement = (Element) content;
                        if (descendantElement.getNamespace() == null
                                || descendantElement.getNamespace() == Namespace.NO_NAMESPACE) {
                            descendantElement.setNamespace(element.getNamespace());
                        }
                    }
                }
            }
        }

        ByteBuf binaryData = ctx.alloc().buffer();
        new XMLOutputter().output((Element) msg, new ByteBufOutputStream(binaryData));

        frame = new TextWebSocketFrame(binaryData);
    } else if (msg instanceof KixmppStreamStart) {
        KixmppStreamStart streamStart = (KixmppStreamStart) msg;

        StringWriter writer = new StringWriter();

        if (streamStart.doesIncludeXmlHeader()) {
            writer.append("<?xml version='1.0' encoding='UTF-8'?>");
        }
        writer.append("<stream:stream ");
        if (streamStart.getId() != null) {
            writer.append(String.format("id=\"%s\" ", streamStart.getId()));
        }
        if (streamStart.getFrom() != null) {
            writer.append(String.format("from=\"%s\" ", streamStart.getFrom().getFullJid()));
        }
        if (streamStart.getTo() != null) {
            writer.append(String.format("to=\"%s\" ", streamStart.getTo()));
        }
        writer.append(
                "version=\"1.0\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\">");

        frame = new TextWebSocketFrame(writer.toString());
    } else if (msg instanceof KixmppStreamEnd) {
        frame = new TextWebSocketFrame("</stream:stream>");
    } else if (msg instanceof String) {
        frame = new TextWebSocketFrame((String) msg);
    } else if (msg instanceof ByteBuf) {
        frame = new TextWebSocketFrame((ByteBuf) msg);
    }

    if (frame != null) {
        if (logger.isDebugEnabled()) {
            logger.debug("Sending: [{}]", frame.content().toString(StandardCharsets.UTF_8));
        }

        out.add(frame);
    }
}

---

From source file:com.kixeye.kixmpp.p2p.serialization.ProtostuffEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, Object msg, List<Object> out) throws Exception {
    if (msg instanceof ByteBuf) {
        // already serialized so just pass through
        ByteBuf buf = (ByteBuf) msg;//from  w w  w. j a v a  2 s .c om
        out.add(buf.retain());
    } else {
        // serialize
        ByteBuf buf = ctx.alloc().buffer();
        serializeToByteBuf(registry, buf, msg);
        out.add(buf);
    }
}

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From source file:com.l2jmobius.commons.network.codecs.LengthFieldBasedFrameEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext ctx, ByteBuf msg, List<Object> out) {
    final ByteBuf buf = ctx.alloc().buffer(2);
    final short length = (short) (msg.readableBytes() + 2);
    buf.writeShort(buf.order() != ByteOrder.LITTLE_ENDIAN ? Short.reverseBytes(length) : length);
    out.add(buf);/* ww  w  . j  a va2 s  .  co m*/
    out.add(msg.retain());
}

---

From source file:com.lambdaworks.redis.ProtectedModeTests.java

License:Apache License

@BeforeClass
public static void beforeClass() throws Exception {

    server = new MockTcpServer();

    server.addHandler(() -> {/* w w  w.j av a  2 s . c  o  m*/
        return new ChannelInboundHandlerAdapter() {
            @Override
            public void channelActive(ChannelHandlerContext ctx) throws Exception {

                String message = getMessage();
                ByteBuf buffer = ctx.alloc().buffer(message.length() + 3);
                buffer.writeBytes("-".getBytes());
                buffer.writeBytes(message.getBytes());
                buffer.writeByte('\r').writeByte('\n');

                ctx.writeAndFlush(buffer).addListener(future -> {
                    ctx.close();
                });
            }
        };
    });

    server.initialize(TestSettings.nonexistentPort());

    client = RedisClient.create(TestClientResources.get(),
            RedisURI.create(TestSettings.host(), TestSettings.nonexistentPort()));
}

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From source file:com.lambdaworks.redis.protocol.CommandEncoder.java

License:Apache License

@Override
protected ByteBuf allocateBuffer(ChannelHandlerContext ctx, Object msg, boolean preferDirect) throws Exception {

    if (msg instanceof Collection) {

        if (preferDirect) {
            return ctx.alloc().ioBuffer(((Collection) msg).size() * 16);
        } else {/*  ww  w .  jav a  2s  .  c  o  m*/
            return ctx.alloc().heapBuffer(((Collection) msg).size() * 16);
        }
    }

    if (preferDirect) {
        return ctx.alloc().ioBuffer();
    } else {
        return ctx.alloc().heapBuffer();
    }
}

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