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EventRuleTransfer.java
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EventRuleTransfer.java
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/*
* 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.rocketmq.eventbridge.adapter.runtime.boot;
import com.alibaba.fastjson.JSON;
import com.google.common.collect.Lists;
import io.openmessaging.connector.api.data.ConnectRecord;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CopyOnWriteArrayList;
import javax.annotation.PostConstruct;
import org.apache.commons.collections.MapUtils;
import org.apache.rocketmq.eventbridge.adapter.runtime.boot.common.CirculatorContext;
import org.apache.rocketmq.eventbridge.adapter.runtime.boot.common.OffsetManager;
import org.apache.rocketmq.eventbridge.adapter.runtime.boot.transfer.TransformEngine;
import org.apache.rocketmq.eventbridge.adapter.runtime.common.ServiceThread;
import org.apache.rocketmq.eventbridge.adapter.runtime.error.ErrorHandler;
import org.apache.rocketmq.eventbridge.adapter.runtime.utils.ExceptionUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* receive event and transfer the rule to pusher
*/
public class EventRuleTransfer extends ServiceThread {
private static final Logger LOGGER = LoggerFactory.getLogger(EventRuleTransfer.class);
private volatile Integer batchSize = 100;
private final CirculatorContext circulatorContext;
private final OffsetManager offsetManager;
private final ErrorHandler errorHandler;
public EventRuleTransfer(CirculatorContext circulatorContext, OffsetManager offsetManager,
ErrorHandler errorHandler) {
this.circulatorContext = circulatorContext;
this.offsetManager = offsetManager;
this.errorHandler = errorHandler;
}
@Override
public String getServiceName() {
return this.getClass().getSimpleName();
}
@PostConstruct
public void init() {
super.start();
}
@Override
public void run() {
List<ConnectRecord> afterTransformConnect = new CopyOnWriteArrayList<>();
while (!stopped) {
try {
Map<String, List<ConnectRecord>> eventRecordMap = circulatorContext.takeEventRecords(batchSize);
if (MapUtils.isEmpty(eventRecordMap)) {
LOGGER.trace("listen eventRecords is empty, continue by curTime - {}", System.currentTimeMillis());
this.waitForRunning(1000);
continue;
}
Map<String, TransformEngine<ConnectRecord>> latestTransformMap = circulatorContext.getTaskTransformMap();
if (MapUtils.isEmpty(latestTransformMap)) {
LOGGER.warn("latest transform engine is empty, continue by curTime - {}", System.currentTimeMillis());
this.waitForRunning(3000);
continue;
}
afterTransformConnect.clear();
List<CompletableFuture<Void>> completableFutures = Lists.newArrayList();
for (String runnerName : eventRecordMap.keySet()) {
TransformEngine<ConnectRecord> curTransformEngine = latestTransformMap.get(runnerName);
List<ConnectRecord> curEventRecords = eventRecordMap.get(runnerName);
curEventRecords.forEach(pullRecord -> {
CompletableFuture<Void> transformFuture = CompletableFuture.supplyAsync(() -> curTransformEngine.doTransforms(pullRecord))
.exceptionally((exception) -> {
LOGGER.error("transfer do transform event record failed, stackTrace-", exception);
errorHandler.handle(pullRecord, exception);
return null;
})
.thenAccept(pushRecord -> {
if (Objects.nonNull(pushRecord)) {
afterTransformConnect.add(pushRecord);
} else {
offsetManager.commit(pullRecord);
}
});
completableFutures.add(transformFuture);
});
}
CompletableFuture.allOf(completableFutures.toArray(new CompletableFuture[eventRecordMap.values().size()])).get();
circulatorContext.offerTargetTaskQueue(afterTransformConnect);
LOGGER.info("offer target task queues succeed, transforms.size={}", afterTransformConnect.size());
} catch (Exception exception) {
LOGGER.error("transfer event record failed, stackTrace-", exception);
afterTransformConnect.forEach(transferRecord -> errorHandler.handle(transferRecord, exception));
}
}
}
@Override
public void start() {
thread.start();
}
@Override
public void shutdown() {
try {
circulatorContext.releaseTaskTransform();
} catch (Exception e) {
LOGGER.error(String.format("current thread: %s, error Track: %s ", getServiceName(), ExceptionUtil.getErrorMessage(e)));
}
}
}