aloyszhang commented on code in PR #9952: URL: https://github.com/apache/inlong/pull/9952#discussion_r1557463950
########## inlong-agent/agent-plugins/src/main/java/org/apache/inlong/agent/plugin/instance/CommonInstance.java: ########## @@ -0,0 +1,206 @@ +/* + * 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.agent.plugin.instance; + +import org.apache.inlong.agent.conf.InstanceProfile; +import org.apache.inlong.agent.core.instance.ActionType; +import org.apache.inlong.agent.core.instance.InstanceAction; +import org.apache.inlong.agent.core.instance.InstanceManager; +import org.apache.inlong.agent.core.task.OffsetManager; +import org.apache.inlong.agent.metrics.audit.AuditUtils; +import org.apache.inlong.agent.plugin.Instance; +import org.apache.inlong.agent.plugin.Message; +import org.apache.inlong.agent.plugin.file.Sink; +import org.apache.inlong.agent.plugin.file.Source; +import org.apache.inlong.agent.state.State; +import org.apache.inlong.agent.utils.AgentUtils; +import org.apache.inlong.agent.utils.ThreadUtils; +import org.apache.inlong.common.enums.InstanceStateEnum; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.util.concurrent.TimeUnit; + +/** + * common instance contains source and sink. + * main job is to read from source and write to sink + */ +public abstract class CommonInstance extends Instance { + + private static final Logger LOGGER = LoggerFactory.getLogger(CommonInstance.class); + public static final int HEARTBEAT_CHECK_GAP = 10; + private Source source; + private Sink sink; + private InstanceProfile profile; + public static final int CORE_THREAD_SLEEP_TIME = 10; + private static final int DESTROY_LOOP_WAIT_TIME_MS = 10; + private static final int CHECK_FINISH_AT_LEAST_COUNT = 5; + private final int WRITE_FAILED_WAIT_TIME_MS = 10; + private InstanceManager instanceManager; + private volatile boolean running = false; + private volatile boolean inited = false; + private volatile int checkFinishCount = 0; + private int heartbeatcheckCount = 0; + private long heartBeatStartTime = AgentUtils.getCurrentTime(); + + @Override + public boolean init(Object srcManager, InstanceProfile srcProfile) { + try { + instanceManager = (InstanceManager) srcManager; + profile = srcProfile; + setInodeInfo(profile); + LOGGER.info("task id: {} submit new instance {} profile detail {}.", profile.getTaskId(), + profile.getInstanceId(), profile.toJsonStr()); + source = (Source) Class.forName(profile.getSourceClass()).newInstance(); + source.init(profile); + sink = (Sink) Class.forName(profile.getSinkClass()).newInstance(); + sink.init(profile); + inited = true; + return true; + } catch (Throwable e) { + handleSourceDeleted(); + doChangeState(State.FATAL); + LOGGER.error("init instance {} for task {} failed", profile.getInstanceId(), profile.getInstanceId(), e); + ThreadUtils.threadThrowableHandler(Thread.currentThread(), e); + return false; + } + } + + /** + * @throws IOException + */ + public abstract void setInodeInfo(InstanceProfile profile) throws IOException; + + @Override + public void destroy() { + if (!inited) { + return; + } + doChangeState(State.SUCCEEDED); + while (running) { + AgentUtils.silenceSleepInMs(DESTROY_LOOP_WAIT_TIME_MS); + } + this.source.destroy(); + this.sink.destroy(); + } + + @Override + public void run() { + Thread.currentThread().setName("file-instance-core-" + getTaskId() + "-" + getInstanceId()); + running = true; + try { + doRun(); + } catch (Throwable e) { + LOGGER.error("do run error: ", e); + } + running = false; + } + + private void doRun() { + while (!isFinished()) { + if (!source.sourceExist()) { + handleSourceDeleted(); + break; + } + Message msg = source.read(); + if (msg == null) { + if (source.sourceFinish() && sink.sinkFinish()) { + checkFinishCount++; + if (checkFinishCount > CHECK_FINISH_AT_LEAST_COUNT) { + handleReadEnd(); + break; + } + } else { + checkFinishCount = 0; + } + heartbeatStatic(); + AgentUtils.silenceSleepInMs(CORE_THREAD_SLEEP_TIME); + } else { + boolean suc = false; + while (!isFinished() && !suc) { + suc = sink.write(msg); + if (!suc) { + heartbeatStatic(); + AgentUtils.silenceSleepInMs(WRITE_FAILED_WAIT_TIME_MS); + } + } + heartbeatcheckCount++; + if (heartbeatcheckCount > HEARTBEAT_CHECK_GAP) { + heartbeatStatic(); + } + } + } + } + + private void heartbeatStatic() { + String inlongGroupId = profile.getInlongGroupId(); + String inlongStreamId = profile.getInlongStreamId(); + if (AgentUtils.getCurrentTime() - heartBeatStartTime > TimeUnit.SECONDS.toMillis(1)) { + AuditUtils.add(AuditUtils.AUDIT_ID_AGENT_INSTANCE_HEARTBEAT, inlongGroupId, inlongStreamId, + AgentUtils.getCurrentTime(), 1, 1); Review Comment: ```suggestion if (AgentUtils.getCurrentTime() - heartBeatStartTime > TimeUnit.SECONDS.toMillis(1)) { AuditUtils.add(AuditUtils.AUDIT_ID_AGENT_INSTANCE_HEARTBEAT, profile.getInlongGroupId(), profile.getInlongStreamId(), AgentUtils.getCurrentTime(), 1, 1); 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