imvan commented on a change in pull request #2395: URL: https://github.com/apache/incubator-inlong/pull/2395#discussion_r804445177
########## File path: inlong-dataproxy/dataproxy-source/src/main/java/org/apache/inlong/dataproxy/source/tcp/InlongTcpSource.java ########## @@ -0,0 +1,237 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.inlong.dataproxy.source.tcp; + +import java.lang.reflect.Constructor; +import java.net.InetSocketAddress; +import java.util.concurrent.Executors; + +import org.apache.commons.lang.StringUtils; +import org.apache.flume.Context; +import org.apache.flume.EventDrivenSource; +import org.apache.flume.FlumeException; +import org.apache.flume.conf.Configurable; +import org.apache.flume.source.AbstractSource; +import org.apache.inlong.dataproxy.base.NamedThreadFactory; +import org.apache.inlong.dataproxy.consts.ConfigConstants; +import org.apache.inlong.dataproxy.source.SourceContext; +import org.jboss.netty.bootstrap.ServerBootstrap; +import org.jboss.netty.channel.Channel; +import org.jboss.netty.channel.ChannelFactory; +import org.jboss.netty.channel.ChannelPipelineFactory; +import org.jboss.netty.channel.group.ChannelGroup; +import org.jboss.netty.channel.group.DefaultChannelGroup; +import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory; +import org.jboss.netty.util.ThreadNameDeterminer; +import org.jboss.netty.util.ThreadRenamingRunnable; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.Preconditions; + +/** + * Inlong tcp source + */ +public class InlongTcpSource extends AbstractSource implements Configurable, EventDrivenSource { + + public static final Logger LOG = LoggerFactory.getLogger(InlongTcpSource.class); + + protected ChannelGroup allChannels; + protected SourceContext sourceContext; + + protected ServerBootstrap serverBootstrap = null; + protected int port; + protected String host = null; + protected String msgFactoryName; + protected String messageHandlerName; + + private boolean tcpNoDelay = true; + private boolean keepAlive = true; + private int receiveBufferSize; + private int highWaterMark; + private int sendBufferSize; + private int trafficClass; + + private Channel nettyChannel = null; + + private Configurable pipelineFactoryConfigurable = null; + + /** + * Constructor + */ + public InlongTcpSource() { + super(); + allChannels = new DefaultChannelGroup(); + } + + /** + * start + */ + @SuppressWarnings({"unchecked", "rawtypes"}) + @Override + public synchronized void start() { + try { + LOG.info("start " + this.getName()); + + ThreadRenamingRunnable.setThreadNameDeterminer(ThreadNameDeterminer.CURRENT); + ChannelFactory factory = new NioServerSocketChannelFactory( + Executors.newCachedThreadPool( + new NamedThreadFactory("tcpSource-nettyBoss-threadGroup")), + 1, + Executors.newCachedThreadPool( + new NamedThreadFactory("tcpSource-nettyWorker-threadGroup")), + this.sourceContext.getMaxThreads()); + LOG.info("Set max workers : {} ;", this.sourceContext.getMaxThreads()); + ChannelPipelineFactory pipelineFactory = null; + + serverBootstrap = new ServerBootstrap(factory); + serverBootstrap.setOption("child.tcpNoDelay", tcpNoDelay); + serverBootstrap.setOption("child.keepAlive", keepAlive); + serverBootstrap.setOption("child.receiveBufferSize", receiveBufferSize); + serverBootstrap.setOption("child.sendBufferSize", sendBufferSize); + serverBootstrap.setOption("child.trafficClass", trafficClass); + serverBootstrap.setOption("child.writeBufferHighWaterMark", highWaterMark); + LOG.info("load msgFactory=" + msgFactoryName + + " and messageHandlerName=" + messageHandlerName); + try { + Class<? extends ChannelPipelineFactory> clazz = (Class<? extends ChannelPipelineFactory>) Class + .forName(msgFactoryName); + + Constructor ctor = clazz.getConstructor(SourceContext.class); + + LOG.info("Using channel processor:{}", getChannelProcessor().getClass().getName()); + pipelineFactory = (ChannelPipelineFactory) ctor.newInstance(sourceContext); + if (pipelineFactory instanceof Configurable) { + this.pipelineFactoryConfigurable = ((Configurable) pipelineFactory); + this.pipelineFactoryConfigurable.configure(sourceContext.getParentContext()); + } + } catch (Exception e) { + e.printStackTrace(); + LOG.error( + "Inlong Tcp Source start error, fail to construct ChannelPipelineFactory with name {}, ex {}", + msgFactoryName, e); + stop(); + throw new FlumeException(e.getMessage(), e); + } + + serverBootstrap.setPipelineFactory(pipelineFactory); + + try { + if (host == null) { + nettyChannel = serverBootstrap.bind(new InetSocketAddress(port)); + } else { + nettyChannel = serverBootstrap.bind(new InetSocketAddress(host, port)); + } + } catch (Exception e) { + LOG.error("Inlong TCP Source error bind host {} port {},program will exit!", host, + port); + System.exit(-1); + } + + allChannels.add(nettyChannel); + + LOG.info("Inlong TCP Source started at host {}, port {}", host, port); + super.start(); + } catch (Throwable t) { + t.printStackTrace(); + } + } + + /** + * stop + */ + @Override + public synchronized void stop() { + LOG.info("[STOP SOURCE]{} stopping...", super.toString()); + if (allChannels != null && !allChannels.isEmpty()) { + try { + allChannels.unbind().awaitUninterruptibly(); + allChannels.close().awaitUninterruptibly(); + } catch (Exception e) { + LOG.warn("Inlong TCP Source netty server stop ex", e); + } finally { + allChannels.clear(); + } + } + + if (serverBootstrap != null) { + try { + serverBootstrap.releaseExternalResources(); + } catch (Exception e) { + LOG.warn("Inlong TCP Source serverBootstrap stop ex ", e); + } finally { + serverBootstrap = null; + } + } + +// super.stop(); + LOG.info("[STOP SOURCE]{} stopped", super.getName()); + } + + /** + * configure + * + * @param context + */ + @Override + public void configure(Context context) { + try { + LOG.info("context is {}", context); + this.sourceContext = new SourceContext(this, allChannels, context); + // start + this.sourceContext.start(); + + tcpNoDelay = context.getBoolean(ConfigConstants.TCP_NO_DELAY, true); + keepAlive = context.getBoolean(ConfigConstants.KEEP_ALIVE, true); + highWaterMark = context.getInteger(ConfigConstants.HIGH_WATER_MARK, 64 * 1024); + receiveBufferSize = context.getInteger(ConfigConstants.RECEIVE_BUFFER_SIZE, 1024 * 64); + if (receiveBufferSize > 16 * 1024 * 1024) { + receiveBufferSize = 16 * 1024 * 1024; + } + Preconditions.checkArgument(receiveBufferSize > 0, "receiveBufferSize must be > 0"); + + sendBufferSize = context.getInteger(ConfigConstants.SEND_BUFFER_SIZE, 1024 * 64); + if (sendBufferSize > 16 * 1024 * 1024) { + sendBufferSize = 16 * 1024 * 1024; + } + Preconditions.checkArgument(sendBufferSize > 0, "sendBufferSize must be > 0"); + + trafficClass = context.getInteger(ConfigConstants.TRAFFIC_CLASS, 0); + Preconditions.checkArgument((trafficClass == 0 || trafficClass == 96), + "trafficClass must be == 0 or == 96"); + + msgFactoryName = context.getString(ConfigConstants.MSG_FACTORY_NAME, + InlongTcpChannelPipelineFactory.class.getName()); + msgFactoryName = msgFactoryName.trim(); + Preconditions.checkArgument(StringUtils.isNotBlank(msgFactoryName), + "msgFactoryName is empty"); + + messageHandlerName = context.getString(ConfigConstants.MESSAGE_HANDLER_NAME, + InlongTcpChannelHandler.class.getName()); + messageHandlerName = messageHandlerName.trim(); + Preconditions.checkArgument(StringUtils.isNotBlank(messageHandlerName), + "messageHandlerName is empty"); + + if (this.pipelineFactoryConfigurable != null) { + this.pipelineFactoryConfigurable.configure(context); + } + } catch (Throwable t) { + t.printStackTrace(); Review comment: ditto -- This is an automated message from the Apache Git Service. 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