wu-sheng commented on a change in pull request #772: [Agent] Support kafka framework URL: https://github.com/apache/incubator-skywalking/pull/772#discussion_r164262874
########## File path: apm-sniffer/apm-sdk-plugin/kafka-0.11.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/kafka/v11/KafkaConsumerInterceptor.java ########## @@ -0,0 +1,94 @@ +/* + * 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.skywalking.apm.plugin.kafka.v11; + +import java.lang.reflect.Method; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import org.apache.kafka.clients.consumer.ConsumerRecord; +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.header.Header; +import org.apache.skywalking.apm.agent.core.context.CarrierItem; +import org.apache.skywalking.apm.agent.core.context.ContextCarrier; +import org.apache.skywalking.apm.agent.core.context.ContextManager; +import org.apache.skywalking.apm.agent.core.context.tag.Tags; +import org.apache.skywalking.apm.agent.core.context.trace.AbstractSpan; +import org.apache.skywalking.apm.agent.core.context.trace.SpanLayer; +import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.EnhancedInstance; +import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstanceMethodsAroundInterceptor; +import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.MethodInterceptResult; +import org.apache.skywalking.apm.network.trace.component.ComponentsDefine; + +/** + * @autor zhang xin + */ +public class KafkaConsumerInterceptor implements InstanceMethodsAroundInterceptor { + + public static final String OPERATE_NAME_PREFIX = "Kafka/"; + public static final String CONSUMER_OPERATE_NAME_SUFFIX = "/Consumer"; + + @Override + public void beforeMethod(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes, + MethodInterceptResult result) throws Throwable { + ConsumerEnhanceRequiredInfo requiredInfo = (ConsumerEnhanceRequiredInfo)objInst.getSkyWalkingDynamicField(); + requiredInfo.setStartTime(System.currentTimeMillis()); + } + + @Override + public Object afterMethod(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes, + Object ret) throws Throwable { + Map<TopicPartition, List<ConsumerRecord<?, ?>>> records = (Map<TopicPartition, List<ConsumerRecord<?, ?>>>)ret; + // + // The entry span will create when the consumer fetch anyone message from kafka cluster, or the span will not create. Review comment: Change comments to: > The entry span will only be created when the consumer received at least one message. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
