gosonzhang commented on code in PR #8041: URL: https://github.com/apache/inlong/pull/8041#discussion_r1196144738
########## inlong-dataproxy/dataproxy-source/src/main/java/org/apache/inlong/dataproxy/source2/InLongMessageFactory.java: ########## @@ -0,0 +1,77 @@ +/* + * 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.source2; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import java.lang.reflect.Constructor; +import java.util.concurrent.TimeUnit; +import io.netty.channel.ChannelInboundHandlerAdapter; +import io.netty.channel.ChannelInitializer; +import io.netty.channel.socket.SocketChannel; +import io.netty.handler.codec.LengthFieldBasedFrameDecoder; +import io.netty.handler.timeout.ReadTimeoutHandler; + +public class InLongMessageFactory extends ChannelInitializer<SocketChannel> { + + private static final Logger LOG = LoggerFactory.getLogger(InLongMessageFactory.class); + + public static final int INLONG_LENGTH_FIELD_OFFSET = 0; + public static final int INLONG_LENGTH_FIELD_LENGTH = 4; + public static final int INLONG_LENGTH_ADJUSTMENT = -4; + public static final int INLONG_INITIAL_BYTES_TO_STRIP = 0; + public static final boolean DEFAULT_FAIL_FAST = true; + + private BaseSource source; + + /** + * get server factory + * + * @param source + */ + public InLongMessageFactory(BaseSource source) { + this.source = source; + } + + @Override + protected void initChannel(SocketChannel ch) throws Exception { + + if (source.getProtocolName() + .equalsIgnoreCase(SourceConstants.SRC_PROTOCOL_TYPE_TCP)) { + ch.pipeline().addLast("messageDecoder", new LengthFieldBasedFrameDecoder( + source.getMaxMsgLength(), INLONG_LENGTH_FIELD_OFFSET, INLONG_LENGTH_FIELD_LENGTH, + INLONG_LENGTH_ADJUSTMENT, INLONG_INITIAL_BYTES_TO_STRIP, DEFAULT_FAIL_FAST)); + ch.pipeline().addLast("readTimeoutHandler", + new ReadTimeoutHandler(source.getMaxReadIdleTimeMs(), TimeUnit.MILLISECONDS)); + } + // build message handler + if (source.getChannelProcessor() != null) { + try { + Class<? extends ChannelInboundHandlerAdapter> clazz = + (Class<? extends ChannelInboundHandlerAdapter>) Class.forName(source.getMessageHandlerName()); + Constructor<?> ctor = clazz.getConstructor(BaseSource.class); + ChannelInboundHandlerAdapter messageHandler = + (ChannelInboundHandlerAdapter) ctor.newInstance(source); + ch.pipeline().addLast("messageHandler", messageHandler); + } catch (Exception e) { + LOG.info("{} newInstance {} failure!", source.getName(), Review Comment: Done -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
