Examples of io.netty.handler.codec.http.DefaultFullHttpResponse

io.netty.handler.codec.http.DefaultFullHttpResponse
Default implementation of a {@link FullHttpResponse}.

            return node.asText();
    }


    private static void sendError(final ChannelHandlerContext ctx, final HttpResponseStatus status, final String message) {
        logger.warn("Invalid request - responding with {} and {}", status, message);
        final FullHttpResponse response = new DefaultFullHttpResponse(
                HTTP_1_1, status, Unpooled.copiedBuffer("{\"message\": \"" + message + "\"}", CharsetUtil.UTF_8));
        response.headers().set(CONTENT_TYPE, "application/json");


        // Close the connection as soon as the error message is sent.
        ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
    }

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            if (HttpMethod.POST.equals(fullHttpRequest.getMethod())) {
                String message = fullHttpRequest.content().toString(Charset.defaultCharset());
                synchronized (messages) {
                    messages.add(message);
                }
                final HttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
                future = ctx.writeAndFlush(response);
            } else {
                LOGGER.warning("Received " + fullHttpRequest.getMethod());
                future = ctx.writeAndFlush(new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.INTERNAL_SERVER_ERROR));
            }


            future.addListener(ChannelFutureListener.CLOSE);
        }

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            final ChannelFuture future;
            if (HttpMethod.POST.equals(fullHttpRequest.getMethod())) {
                final InputStream is =
                    new ByteArrayInputStream(gzipCompression(fullHttpRequest.content().toString(Charset.defaultCharset()).getBytes()));


                final DefaultFullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
                final ByteArrayOutputStream baos = new ByteArrayOutputStream();
                final PrintWriter writer = new PrintWriter(baos);


                collector.doPost(HttpServletRequest.class.cast(Proxy.newProxyInstance(Thread.currentThread().getContextClassLoader(), new Class<?>[]{HttpServletRequest.class}, new InvocationHandler() {
                    @Override
                    public Object invoke(final Object proxy, final Method method, final Object[] args) throws Throwable {
                        if (Object.class.equals(method.getDeclaringClass())) {
                            return method.invoke(this, args);
                        }


                        if ("getInputStream".equals(method.getName())) {
                            return new ServletInputStream() {
                                @Override
                                public int read() throws IOException {
                                    return is.read();
                                }
                            };
                        }


                        if ("getHeader".equals( method.getName()) && args[0].equals( "Content-Encoding" )) {
                            return "gzip";
                        }


                        if ("getHeader".equals( method.getName()) && args[0].equals( "Content-Type" )) {
                            return "foo";
                        }


                        throw new UnsupportedOperationException("not implemented: " + method.getName() + " for args: " + Arrays.asList(args));
                    }
                })),
                HttpServletResponse.class.cast(Proxy.newProxyInstance(Thread.currentThread().getContextClassLoader(), new Class<?>[] { HttpServletResponse.class}, new InvocationHandler() {
                    @Override
                    public Object invoke(final Object proxy, final Method method, final Object[] args) throws Throwable {
                        if (Object.class.equals(method.getDeclaringClass())) {
                            return method.invoke(this, args);
                        }


                        final String name = method.getName();
                        if ("setStatus".equals(name)) {
                            response.setStatus(HttpResponseStatus.valueOf(Integer.class.cast(args[0])));
                            return null;
                        } else if ("getWriter".equals(name)) {
                            return writer;
                        }


                        throw new UnsupportedOperationException("not implemented");
                    }
                })));


                response.content().writeBytes(baos.toByteArray());
                future = ctx.writeAndFlush(response);
            } else {
                LOGGER.warning("Received " + fullHttpRequest.getMethod());
                future = ctx.writeAndFlush(new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.INTERNAL_SERVER_ERROR));
            }
            future.addListener(ChannelFutureListener.CLOSE);
        }

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            private AtomicBoolean done = new AtomicBoolean(false);


            @Override
            protected void channelRead0(final ChannelHandlerContext ctx, final FullHttpRequest fullHttpRequest) throws Exception {
                if (done.get()) {
                    ctx.writeAndFlush(new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK, Unpooled.copiedBuffer("[]".getBytes())))
                        .addListener(ChannelFutureListener.CLOSE);
                    return;
                }


                done.set(true);
                ctx.writeAndFlush(new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK, Unpooled.copiedBuffer(("" +
                    "[{\"type\": \"counter\",\"time\": \"2013-11-07T10:31:13Z\",\"data\": {\"min\":2.0,\"unit\":\"ns\",\"hits\":1,\"max\":2.0,\"marker\":\"ubuntu\",\"name\":\"counter#2\",\"concurrency\":0,\"m2\":0.0,\"sum\":2.0,\"mean\":2.0,\"role\":\"performances\",\"variance\":0.0}},{\"type\": \"counter\",\"time\": \"2013-11-07T10:31:13Z\",\"data\": {\"min\":0.0,\"unit\":\"ns\",\"hits\":1,\"max\":0.0,\"marker\":\"ubuntu\",\"name\":\"counter#0\",\"concurrency\":0,\"m2\":0.0,\"sum\":0.0,\"mean\":0.0,\"role\":\"performances\",\"variance\":0.0}},{\"type\": \"counter\",\"time\": \"2013-11-07T10:31:13Z\",\"data\": {\"min\":1.0,\"unit\":\"ns\",\"hits\":1,\"max\":1.0,\"marker\":\"ubuntu\",\"name\":\"counter#1\",\"concurrency\":0,\"m2\":0.0,\"sum\":1.0,\"mean\":1.0,\"role\":\"performances\",\"variance\":0.0}},{\"type\": \"gauge\",\"time\": \"2013-11-07T10:31:13Z\",\"data\": {\"unit\":\"u\",\"marker\":\"ubuntu\",\"value\":0.87,\"role\":\"CPU\"}},{\"type\": \"gauge\",\"time\": \"2013-11-07T10:31:13Z\",\"data\": {\"unit\":\"u\",\"marker\":\"ubuntu\",\"value\":1.0245232E7,\"role\":\"Used Memory\"}},{\"type\": \"gauge\",\"time\": \"2013-11-07T10:31:13Z\",\"data\": {\"unit\":\"u\",\"marker\":\"ubuntu\",\"value\":0.0,\"role\":\"gaugerole\"}},{\"type\": \"validation\",\"time\": \"2013-11-07T10:31:13Z\",\"data\": {\"message\":\"descr\",\"marker\":\"ubuntu\",\"status\":\"OK\",\"name\":\"fake\"}},{\"type\": \"validation\",\"time\": \"2013-11-07T10:31:13Z\",\"data\": {\"message\":\"descr\",\"marker\":\"ubuntu\",\"status\":\"OK\",\"name\":\"refake\"}}]" +
                    "").getBytes())))
                    .addListener(ChannelFutureListener.CLOSE);
            }

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                                            HttpRequest request, NettyHttpContextHandler nettyHttpContextHandler)
        throws Exception {


        interceptOnRequestReceived(ctx, request);
        
        FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);


        NettyServletResponse nettyServletResponse = buildHttpServletResponse(response);
        NettyHttpServletRequest nettyServletRequest = 
            buildHttpServletRequest(request, nettyHttpContextHandler.getContextPath(), ctx);


        nettyHttpContextHandler.handle(nettyServletRequest.getRequestURI(), nettyServletRequest, nettyServletResponse);
        interceptOnRequestSuccessed(ctx, response);


        nettyServletResponse.getWriter().flush();


        boolean keepAlive = HttpHeaders.isKeepAlive(request);


        if (keepAlive) {
            // Add 'Content-Length' header only for a keep-alive connection.
            response.headers().set(Names.CONTENT_LENGTH, response.content().readableBytes());
            // Add keep alive header as per:
            // -
            // http://www.w3.org/Protocols/HTTP/1.1/draft-ietf-http-v11-spec-01.html#Connection
            response.headers().set(Names.CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
        }


        // write response...
        ChannelFuture future = ctx.write(response);

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        ctx.close();
    }


    private void sendError(ChannelHandlerContext ctx, HttpResponseStatus status) {
        ByteBuf content = Unpooled.copiedBuffer("Failure: " + status.toString() + "\r\n", CharsetUtil.UTF_8);
        FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, 
                                                                status,
                                                                content);
        response.headers().set(Names.CONTENT_TYPE, "text/plain; charset=UTF-8");
        
        ctx.write(response).addListener(ChannelFutureListener.CLOSE);
    }

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        }
        
        HttpResponse response = null;
        
        if (buffer != null) {
            response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.valueOf(code), buffer);
            // We just need to reset the readerIndex this time
            if (buffer.readerIndex() == buffer.writerIndex()) {
                buffer.setIndex(0, buffer.writerIndex());
            }
            // TODO How to enable the chunk transport 
            int len = buffer.readableBytes();
            // set content-length
            response.headers().set(HttpHeaders.Names.CONTENT_LENGTH, len);
            LOG.trace("Content-Length: {}", len);
        } else {
            response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.valueOf(code));
        }
        
        TypeConverter tc = message.getExchange().getContext().getTypeConverter();


        // append headers

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     */
    public static HttpResponse myTransformer(FullHttpRequest request) {
        String in = request.content().toString(Charset.forName("UTF-8"));
        String reply = "Bye " + in;


        HttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK,
                                                            NettyConverter.toByteBuffer(reply.getBytes()));
        
        response.headers().set(HttpHeaders.Names.CONTENT_LENGTH, reply.length());


        return response;
    }

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                from("netty4-http:http://0.0.0.0:{{port}}/foo")
                    .to("mock:input")
                    .process(new Processor() {
                        @Override
                        public void process(Exchange exchange) throws Exception {
                            HttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK,
                                                                                NettyConverter.toByteBuffer("Bye World".getBytes()));
                            response.headers().set(HttpHeaders.Names.CONTENT_LENGTH, 9);


                            exchange.getOut().setBody(response);
                        }
                    });
            }

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        Transports.writeContent(response, infoContent(config), "application/json; charset=UTF-8");
        return response;
    }


    private static FullHttpResponse createResponse(final HttpRequest request) {
        return new DefaultFullHttpResponse(request.getProtocolVersion(), HttpResponseStatus.OK);
    }

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