Example usage for io.netty.channel ChannelFutureListener CLOSE

List of usage examples for io.netty.channel ChannelFutureListener CLOSE

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Introduction

In this page you can find the example usage for io.netty.channel ChannelFutureListener CLOSE.

Prototype

ChannelFutureListener CLOSE

To view the source code for io.netty.channel ChannelFutureListener CLOSE.

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Document

A ChannelFutureListener that closes the Channel which is associated with the specified ChannelFuture .

Usage

From source file:com.alibaba.dubbo.qos.server.handler.HttpProcessHandler.java

License:Apache License

@Override
protected void channelRead0(ChannelHandlerContext ctx, HttpRequest msg) throws Exception {
    CommandContext commandContext = HttpCommandDecoder.decode(msg);
    // return 404 when fail to construct command context
    if (commandContext == null) {
        log.warn("can not found commandContext url: " + msg.getUri());
        FullHttpResponse response = http_404();
        ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
    } else {// ww  w .  j a  v a 2 s.  c  o m
        commandContext.setRemote(ctx.channel());
        try {
            String result = commandExecutor.execute(commandContext);
            FullHttpResponse response = http_200(result);
            ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
        } catch (NoSuchCommandException ex) {
            log.error("can not find commandContext: " + commandContext, ex);
            FullHttpResponse response = http_404();
            ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
        } catch (Exception qosEx) {
            log.error("execute commandContext: " + commandContext + " got exception", qosEx);
            FullHttpResponse response = http_500(qosEx.getMessage());
            ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
        }
    }
}

From source file:com.alibaba.dubbo.qos.server.handler.LocalHostPermitHandler.java

License:Apache License

@Override
public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
    if (!acceptForeignIp) {
        if (!((InetSocketAddress) ctx.channel().remoteAddress()).getAddress().isLoopbackAddress()) {
            ByteBuf cb = Unpooled.wrappedBuffer(
                    (QosConstants.BR_STR + "Foreign Ip Not Permitted." + QosConstants.BR_STR).getBytes());
            ctx.writeAndFlush(cb).addListener(ChannelFutureListener.CLOSE);
        }/*from  w  w  w  .  j a  v a2  s.  c  om*/
    }
}

From source file:com.alibaba.dubbo.qos.server.handler.TelnetProcessHandler.java

License:Apache License

@Override
protected void channelRead0(ChannelHandlerContext ctx, String msg) throws Exception {

    if (StringUtils.isBlank(msg)) {
        ctx.writeAndFlush(QosProcessHandler.prompt);
    } else {// w  ww.  j a v a 2s . co m
        CommandContext commandContext = TelnetCommandDecoder.decode(msg);
        commandContext.setRemote(ctx.channel());

        try {
            String result = commandExecutor.execute(commandContext);
            if (StringUtils.equals(QosConstants.CLOSE, result)) {
                ctx.writeAndFlush(getByeLabel()).addListener(ChannelFutureListener.CLOSE);
            } else {
                ctx.writeAndFlush(result + QosConstants.BR_STR + QosProcessHandler.prompt);
            }
        } catch (NoSuchCommandException ex) {
            ctx.writeAndFlush(msg + " :no such command");
            ctx.writeAndFlush(QosConstants.BR_STR + QosProcessHandler.prompt);
            log.error("can not found command " + commandContext, ex);
        } catch (Exception ex) {
            ctx.writeAndFlush(msg + " :fail to execute commandContext by " + ex.getMessage());
            ctx.writeAndFlush(QosConstants.BR_STR + QosProcessHandler.prompt);
            log.error("execute commandContext got exception " + commandContext, ex);
        }
    }
}

From source file:com.android.tools.idea.diagnostics.crash.LocalTestServer.java

License:Apache License

public void start() throws Exception {
    ServerBootstrap b = new ServerBootstrap();
    myEventLoopGroup = new OioEventLoopGroup();
    b.group(myEventLoopGroup).channel(OioServerSocketChannel.class)
            .childHandler(new ChannelInitializer<SocketChannel>() {
                @Override//  w  ww  .ja v  a 2s . co m
                protected void initChannel(SocketChannel ch) throws Exception {
                    ChannelPipeline p = ch.pipeline();
                    p.addLast(new HttpServerCodec());
                    // Note: Netty's decompressor uses jcraft jzlib, which is not exported as a library
                    // p.addLast(new HttpContentDecompressor());
                    p.addLast(new HttpObjectAggregator(32 * 1024)); // big enough to collect a full thread dump
                    p.addLast(new ChannelInboundHandlerAdapter() {
                        @Override
                        public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
                            ctx.flush();
                        }

                        @Override
                        public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                            if (!(msg instanceof FullHttpRequest)) {
                                return;
                            }

                            FullHttpResponse response = myResponseSupplier.apply((FullHttpRequest) msg);
                            response.headers().set(HttpHeaderNames.CONTENT_TYPE, "text/plain");
                            response.headers().set(HttpHeaderNames.CONTENT_LENGTH,
                                    response.content().readableBytes());
                            ctx.write(response).addListener(ChannelFutureListener.CLOSE);
                        }

                        @Override
                        public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause)
                                throws Exception {
                            ctx.write(cause.toString()).addListener(ChannelFutureListener.CLOSE);
                        }
                    });
                }
            });

    myChannel = b.bind(myPort).sync().channel();
}

From source file:com.artigile.homestats.HomeStatsHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
    if (msg instanceof HttpRequest) {
        HttpRequest req = (HttpRequest) msg;
        byte responseBody[];
        final String uri = req.uri();
        if (uri.startsWith("/getCurrentHumidity")) {
            responseBody = getHumidity();
        } else if (uri.startsWith("/getCurrentTemp")) {
            responseBody = getTemperature();
        } else if (uri.startsWith("/getCurrentPressure")) {
            responseBody = getPressure();
        } else if (uri.startsWith("/getData")) {
            responseBody = readDataFromDb();
        } else {//from   w ww.  java2s .  c o  m
            responseBody = "404".getBytes();
        }
        if (HttpHeaderUtil.is100ContinueExpected(req)) {
            ctx.write(new DefaultFullHttpResponse(HTTP_1_1, CONTINUE));
        }
        boolean keepAlive = HttpHeaderUtil.isKeepAlive(req);
        FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK,
                Unpooled.wrappedBuffer(responseBody));
        response.headers().set(CONTENT_TYPE, "text/plain");
        response.headers().setInt(CONTENT_LENGTH, response.content().readableBytes());

        if (!keepAlive) {
            ctx.write(response).addListener(ChannelFutureListener.CLOSE);
        } else {
            response.headers().set(CONNECTION, HttpHeaderValues.KEEP_ALIVE);
            ctx.write(response);
        }
    }
}

From source file:com.athena.dolly.websocket.server.test.WebSocketServerHandler.java

License:Apache License

private static void sendHttpResponse(ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res) {
    // Generate an error page if response getStatus code is not OK (200).
    if (res.getStatus().code() != 200) {
        ByteBuf buf = Unpooled.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8);
        res.content().writeBytes(buf);/*from   w ww  .j a  v  a 2 s .c o m*/
        buf.release();
        setContentLength(res, res.content().readableBytes());
    }

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

From source file:com.athena.dolly.websocket.server.test.WebSocketSslServerHandler.java

License:Apache License

private static void sendHttpResponse(ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res) {
    // Generate an error page if response getStatus code is not OK (200).
    if (res.getStatus().code() != 200) {
        ByteBuf buf = Unpooled.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8);
        res.content().writeBytes(buf);/*w ww  . ja  v  a 2  s.co m*/
        buf.release();
        setContentLength(res, res.content().readableBytes());
    }

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

From source file:com.athena.peacock.controller.netty.PeacockServerHandler.java

License:Open Source License

@SuppressWarnings("unchecked")
@Override/*from   www  . j a  v a2 s . co  m*/
protected void channelRead0(ChannelHandlerContext ctx, Object msg) throws Exception {
    logger.debug("channelRead0() has invoked.");
    logger.debug("[Server] IP Address => " + ctx.channel().remoteAddress().toString());
    logger.debug("[Server] Object => " + msg.getClass().getName());
    //logger.debug("[Server] Contents => " + msg.toString());

    if ("bye".equals(msg.toString())) {
        // Response and exit.
        ChannelFuture future = ctx.write("This channel will be closed.");
        future.addListener(ChannelFutureListener.CLOSE);
    } else {
        if (msg instanceof PeacockDatagram) {
            MessageType messageType = ((PeacockDatagram<?>) msg).getMessageType();

            switch (messageType) {
            case COMMAND:
                break;
            case RESPONSE:
                ProvisioningResponseMessage responseMsg = ((PeacockDatagram<ProvisioningResponseMessage>) msg)
                        .getMessage();

                if (responseMsg.isBlocking()) {
                    CallbackManagement.poll().handle(responseMsg);
                }
                break;
            case SYSTEM_STATUS:
                AgentSystemStatusMessage statusMsg = ((PeacockDatagram<AgentSystemStatusMessage>) msg)
                        .getMessage();

                //ThreadLocal cannot use.
                //List<MonFactorDto> monFactorList = (List<MonFactorDto>) ThreadLocalUtil.get(PeacockConstant.MON_FACTOR_LIST);
                List<MonFactorDto> monFactorList = AppContext.getBean(MonFactorHandler.class)
                        .getMonFactorList();

                List<MonDataDto> monDataList = new ArrayList<MonDataDto>();
                MonDataDto monData = null;

                for (MonFactorDto monFactor : monFactorList) {
                    monData = new MonDataDto();

                    monData.setMachineId(statusMsg.getAgentId());
                    monData.setMonFactorId(monFactor.getMonFactorId());
                    monData.setMonDataValue(getMonDataValue(monFactor, statusMsg));
                    monData.setRegUserId(1);
                    monData.setUpdUserId(1);

                    monDataList.add(monData);
                }

                if (this.monitorService == null) {
                    monitorService = AppContext.getBean(MonitorService.class);
                }

                monitorService.insertMonDataList(monDataList);

                break;
            case INITIAL_INFO:
                AgentInitialInfoMessage infoMsg = ((PeacockDatagram<AgentInitialInfoMessage>) msg).getMessage();

                if (infoMsg.getMachineId() != null) {
                    // register a new channel
                    ChannelManagement.registerChannel(infoMsg.getMachineId(), ctx.channel());
                    break;
                }

                String ipAddr = ctx.channel().remoteAddress().toString();
                ipAddr = ipAddr.substring(1, ipAddr.indexOf(":"));

                // ipAddr?  rhev_id RHEV Manager .
                String machineId = infoMsg.getAgentId();
                Integer hypervisorId = null;
                String displayName = null;
                String clusterName = null;
                String isPrd = "N";
                String isVm = "N";
                String description = null;
                boolean isMatch = false;
                try {
                    List<RHEVMRestTemplate> templates = RHEVMRestTemplateManager.getAllTemplates();

                    if (templates == null || templates.size() == 0) {
                        List<HypervisorDto> hypervisorList = AppContext.getBean(HypervisorService.class)
                                .getHypervisorList();
                        RHEVMRestTemplateManager.resetRHEVMRestTemplate(hypervisorList);
                        templates = RHEVMRestTemplateManager.getAllTemplates();
                    }

                    logger.debug("[PeacockServerHandler] templates.size() : {}", templates.size());

                    for (RHEVMRestTemplate restTemplate : templates) {
                        VMs vms = restTemplate.submit("/api/vms?search=" + ipAddr, HttpMethod.GET, VMs.class);

                        if (vms.getVMs().size() > 0) {
                            isVm = "Y";

                            List<VM> vmList = vms.getVMs();
                            List<IP> ipList = null;
                            for (VM vm : vmList) {
                                // ip ? ? getIps() null? .
                                ipList = vm.getGuestInfo().getIps().getIPs();

                                for (IP ip : ipList) {
                                    if (ip.getAddress().equals(ipAddr)) {
                                        isMatch = true;
                                        machineId = vm.getId();
                                        hypervisorId = restTemplate.getHypervisorId();
                                        displayName = vm.getName();
                                        description = vm.getDescription();

                                        Cluster cluster = restTemplate.submit(vm.getCluster().getHref(),
                                                HttpMethod.GET, Cluster.class);
                                        clusterName = cluster.getName();
                                        break;
                                    }
                                }

                                if (isMatch) {
                                    break;
                                }
                            }
                        }

                        if (isMatch) {
                            break;
                        }
                    }
                } catch (Exception e) {
                    // ignore
                    logger.error("Unhandled Exception has occurred.", e);
                }

                // register a new channel
                ChannelManagement.registerChannel(machineId, ctx.channel());

                // Agent? RHEV Manager? ?? ID ??? AgentID 
                //  Agent? Software  ?? ?  Software  ? ? 
                AgentInitialInfoMessage returnMsg = new AgentInitialInfoMessage();
                returnMsg.setAgentId(machineId);
                PeacockDatagram<AbstractMessage> datagram = new PeacockDatagram<AbstractMessage>(returnMsg);
                ctx.channel().writeAndFlush(datagram);

                if (this.machineService == null) {
                    machineService = AppContext.getBean(MachineService.class);
                }

                // Instance  DB? .
                MachineDto machine = new MachineDto();
                machine.setMachineId(machineId);
                machine.setHypervisorId(hypervisorId);
                machine.setDisplayName(displayName);
                machine.setDescription(description);

                if (StringUtils.isNotEmpty(displayName)) {
                    if (displayName.toLowerCase().startsWith("hhilws")
                            && !displayName.toLowerCase().startsWith("hhilwsd")) {
                        isPrd = "Y";
                    }
                }
                machine.setIsPrd(isPrd);

                machine.setMachineMacAddr(infoMsg.getMacAddrMap().get(ipAddr));
                machine.setIsVm(isVm);
                machine.setCluster(clusterName);
                machine.setOsName(infoMsg.getOsName());
                machine.setOsVer(infoMsg.getOsVersion());
                machine.setOsArch(infoMsg.getOsArch());
                machine.setCpuClock(Integer.toString(infoMsg.getCpuClock()));
                machine.setCpuNum(Integer.toString(infoMsg.getCpuNum()));
                machine.setMemSize(Long.toString(infoMsg.getMemSize()));
                machine.setIpAddr(ipAddr);
                machine.setHostName(infoMsg.getHostName());
                machine.setRegUserId(1);
                machine.setUpdUserId(1);

                machineService.insertMachine(machine);

                // machine_additional_info_tbl? hostname ?  IP    ?  .( ? IP applyYn  ?)
                machine = machineService.getAdditionalInfo(machineId);

                boolean hostnameChanged = false;
                //   hostname   chhost.sh  .
                if (machine != null && StringUtils.isNotEmpty(machine.getHostName())
                        && !machine.getHostName().equals(infoMsg.getHostName())) {
                    try {
                        // /etc/hosts ?? ? ipAddress  Machine? IP?  ? IP? ?.
                        String ipAddress = null;

                        if (StringUtils.isNotEmpty(machine.getIpAddress())) {
                            ipAddress = machine.getIpAddress();
                        } else {
                            ipAddress = ipAddr;
                        }

                        ProvisioningCommandMessage cmdMsg = new ProvisioningCommandMessage();
                        cmdMsg.setAgentId(machine.getMachineId());
                        //cmdMsg.setBlocking(true);

                        int sequence = 0;
                        Command command = new Command("SET_HOSTNAME");

                        ShellAction action = new ShellAction(sequence++);
                        action.setCommand("sh");
                        action.addArguments("chhost.sh");
                        action.addArguments(ipAddress);
                        action.addArguments(machine.getHostName());
                        command.addAction(action);

                        cmdMsg.addCommand(command);

                        datagram = new PeacockDatagram<AbstractMessage>(cmdMsg);
                        ctx.channel().writeAndFlush(datagram);

                        hostnameChanged = true;
                    } catch (Exception e) {
                        // HostName ? ??  IP ?   ??  .
                        logger.error("Unhandled exception has occurred while change hostname.", e);
                    }
                }

                boolean resetIp = false;
                if (machine != null && StringUtils.isNotEmpty(machine.getIpAddress())) {
                    if (machine.getApplyYn().equals("N") && !machine.getIpAddress().equals(ipAddr)) {
                        //  IP ?   Agent ? ? ? ? ???   .
                        machine.setIpAddr(ipAddr);
                        machineService.applyStaticIp(machine);
                        resetIp = true;
                    }
                }

                if (!resetIp) {
                    if (hostnameChanged) {
                        // IP  ? hostname ?  peacock-agent restart .
                        machineService.agentRestart(machineId);
                    } else {
                        // Package   ? Software      ? ?? .
                        if (this.softwareService == null) {
                            softwareService = AppContext.getBean(SoftwareService.class);
                        }
                        List<SoftwareDto> softwareList = softwareService.getSoftwareInstallListAll(machineId);

                        PackageService packageService = AppContext.getBean(PackageService.class);
                        PackageDto ospackage = new PackageDto();
                        ospackage.setMachineId(machineId);
                        int packageCnt = packageService.getPackageListCnt(ospackage);

                        returnMsg = new AgentInitialInfoMessage();
                        returnMsg.setAgentId(machineId);
                        if (softwareList != null && softwareList.size() > 0) {
                            returnMsg.setSoftwareInstalled("Y");
                        } else {
                            returnMsg.setSoftwareInstalled("N");
                        }
                        if (packageCnt > 0) {
                            returnMsg.setPackageCollected("Y");
                        } else {
                            returnMsg.setPackageCollected("N");
                        }
                        datagram = new PeacockDatagram<AbstractMessage>(returnMsg);
                        ctx.channel().writeAndFlush(datagram);
                    }
                }

                break;
            case PACKAGE_INFO:
                OSPackageInfoMessage packageMsg = ((PeacockDatagram<OSPackageInfoMessage>) msg).getMessage();
                List<PackageInfo> packageInfoList = packageMsg.getPackageInfoList();
                PackageInfo packageInfo = null;
                List<PackageDto> packageList = new ArrayList<PackageDto>();
                PackageDto ospackage = null;
                for (int i = 0; i < packageInfoList.size(); i++) {
                    packageInfo = packageInfoList.get(i);

                    ospackage = new PackageDto();
                    ospackage.setPkgId(i + 1);
                    ospackage.setMachineId(packageMsg.getAgentId());
                    ospackage.setName(packageInfo.getName());
                    ospackage.setArch(packageInfo.getArch());
                    ospackage.setSize(packageInfo.getSize());
                    ospackage.setVersion(packageInfo.getVersion());
                    ospackage.setReleaseInfo(packageInfo.getRelease());
                    ospackage.setInstallDate(packageInfo.getInstallDate());
                    ospackage.setSummary(packageInfo.getSummary());
                    ospackage.setDescription(packageInfo.getDescription());

                    packageList.add(ospackage);
                }

                if (packageList.size() > 0) {
                    if (packageService == null) {
                        packageService = AppContext.getBean(PackageService.class);
                    }

                    packageService.insertPackageList(packageList);
                }

                break;
            case SOFTWARE_INFO:
                SoftwareInfoMessage softwareMsg = ((PeacockDatagram<SoftwareInfoMessage>) msg).getMessage();
                List<SoftwareInfo> softwareInfoList = softwareMsg.getSoftwareInfoList();
                SoftwareInfo softwareInfo = null;

                if (softwareRepoService == null) {
                    softwareRepoService = AppContext.getBean(SoftwareRepoService.class);
                }

                SoftwareRepoDto softwareRepo = new SoftwareRepoDto();
                softwareRepo.setStart(0);
                softwareRepo.setLimit(100);
                List<SoftwareRepoDto> softwareRepoList = softwareRepoService.getSoftwareRepoList(softwareRepo);

                List<ConfigDto> configList = null;
                List<ConfigInfo> configInfoList = null;
                SoftwareDto software = null;
                ConfigDto config = null;
                int softwareId = 0;

                StringBuilder stopCmd = null;
                StringBuilder startCmd = null;

                for (int i = 0; i < softwareInfoList.size(); i++) {
                    softwareInfo = softwareInfoList.get(i);

                    for (SoftwareRepoDto repo : softwareRepoList) {
                        softwareId = 0;

                        if (repo.getSoftwareName().toLowerCase()
                                .indexOf(softwareInfo.getName().toLowerCase()) > 0) {
                            // ?  ? ??    ? softwareId .
                            softwareId = repo.getSoftwareId();
                            if (repo.getSoftwareVersion().startsWith(softwareInfo.getVersion())) {
                                softwareId = repo.getSoftwareId();
                                break;
                            }
                        }
                    }

                    //software.setInstallLocation(apacheHome + "," + serverHome + "/bin," + serverHome + "/conf," + serverHome + "/log," + serverHome + "/run," + serverHome + "/www");
                    //software.setInstallLocation(serverHome + "/apps," + serverHome + "/bin," + serverHome + "/Servers," + serverHome + "/svrlogs," + serverHome + "/wily," + serverHome + "/jboss-ews-2.1");
                    //software.setInstallLocation(jbossHome + "," + serverBase + ", " + serverHome + "/apps," + serverHome + "/svrlogs," + serverHome + "/wily");

                    stopCmd = new StringBuilder();
                    startCmd = new StringBuilder();

                    stopCmd.append("WORKING_DIR:").append(softwareInfo.getStopWorkingDir()).append(",")
                            .append("CMD:").append(softwareInfo.getStopCommand()).append(",").append("ARGS:")
                            .append(softwareInfo.getStopArgs());

                    startCmd.append("WORKING_DIR:").append(softwareInfo.getStartWorkingDir()).append(",")
                            .append("CMD:").append(softwareInfo.getStartCommand()).append(",").append("ARGS:")
                            .append(softwareInfo.getStartArgs());

                    software = new SoftwareDto();
                    software.setMachineId(softwareMsg.getAgentId());
                    software.setSoftwareId(softwareId);
                    software.setInstallLocation(StringUtils.join(softwareInfo.getInstallLocations(), ","));
                    software.setInstallStat("COMPLETED");
                    software.setInstallLog("Software installed manually.");
                    software.setServiceStopCmd(stopCmd.toString());
                    software.setServiceStartCmd(startCmd.toString());
                    software.setDescription("");
                    software.setDeleteYn("N");

                    configInfoList = softwareInfo.getConfigInfoList();
                    configList = new ArrayList<ConfigDto>();

                    for (ConfigInfo configInfo : configInfoList) {
                        config = new ConfigDto();
                        config.setMachineId(softwareMsg.getAgentId());
                        config.setSoftwareId(softwareId);
                        config.setConfigFileLocation(configInfo.getConfigFileLocation());
                        config.setConfigFileName(configInfo.getConfigFileName());
                        config.setConfigFileContents(configInfo.getConfigFileContents());
                        config.setDeleteYn("N");

                        configList.add(config);
                    }

                    if (softwareService == null) {
                        softwareService = AppContext.getBean(SoftwareService.class);
                    }

                    softwareService.insertSoftware(software, configList);
                }

                break;
            }
        }
    }
}

From source file:com.bala.learning.learning.netty.HttpServerHandler.java

License:Apache License

@Override
protected void channelRead0(ChannelHandlerContext ctx, Object msg) {
    if (msg instanceof HttpRequest) {
        HttpRequest request = this.request = (HttpRequest) msg;

        if (HttpHeaders.is100ContinueExpected(request)) {
            send100Continue(ctx);/*from w w w  .java2s.c  om*/
        }

        buf.setLength(0);
        buf.append("WELCOME TO THE WILD WILD WEB SERVER\r\n");
        buf.append("===================================\r\n");

        buf.append("VERSION: ").append(request.getProtocolVersion()).append("\r\n");
        buf.append("HOSTNAME: ").append(HttpHeaders.getHost(request, "unknown")).append("\r\n");
        buf.append("REQUEST_URI: ").append(request.getUri()).append("\r\n\r\n");

        HttpHeaders headers = request.headers();
        if (!headers.isEmpty()) {
            for (Map.Entry<String, String> h : headers) {
                String key = h.getKey();
                String value = h.getValue();
                buf.append("HEADER: ").append(key).append(" = ").append(value).append("\r\n");
            }
            buf.append("\r\n");
        }

        QueryStringDecoder queryStringDecoder = new QueryStringDecoder(request.getUri());
        Map<String, List<String>> params = queryStringDecoder.parameters();
        if (!params.isEmpty()) {
            for (Entry<String, List<String>> p : params.entrySet()) {
                String key = p.getKey();
                List<String> vals = p.getValue();
                for (String val : vals) {
                    buf.append("PARAM: ").append(key).append(" = ").append(val).append("\r\n");
                }
            }
            buf.append("\r\n");
        }

        appendDecoderResult(buf, request);
    }

    if (msg instanceof HttpContent) {
        HttpContent httpContent = (HttpContent) msg;

        ByteBuf content = httpContent.content();
        if (content.isReadable()) {
            buf.append("CONTENT: ");
            buf.append(content.toString(CharsetUtil.UTF_8));
            buf.append("\r\n");
            appendDecoderResult(buf, request);
        }

        if (msg instanceof LastHttpContent) {
            buf.append("END OF CONTENT\r\n");

            LastHttpContent trailer = (LastHttpContent) msg;
            if (!trailer.trailingHeaders().isEmpty()) {
                buf.append("\r\n");
                for (String name : trailer.trailingHeaders().names()) {
                    for (String value : trailer.trailingHeaders().getAll(name)) {
                        buf.append("TRAILING HEADER: ");
                        buf.append(name).append(" = ").append(value).append("\r\n");
                    }
                }
                buf.append("\r\n");
            }

            if (!writeResponse(trailer, ctx)) {
                // If keep-alive is off, close the connection once the content is fully written.
                ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
            }
        }
    }
}

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(//  w  ww  .jav a 2  s . 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);

    }

}