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Replicator.java
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Replicator.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.mysql;
import org.apache.rocketmq.mysql.binlog.EventProcessor;
import org.apache.rocketmq.mysql.binlog.Transaction;
import org.apache.rocketmq.mysql.position.BinlogPositionLogThread;
import org.apache.rocketmq.mysql.productor.RocketMQProducer;
import org.apache.rocketmq.mysql.position.BinlogPosition;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Replicator {
private static final Logger LOGGER = LoggerFactory.getLogger(Replicator.class);
private static final Logger POSITION_LOGGER = LoggerFactory.getLogger("PositionLogger");
private Config config;
private EventProcessor eventProcessor;
private RocketMQProducer rocketMQProducer;
private Object lock = new Object();
private BinlogPosition nextBinlogPosition;
private long nextQueueOffset;
private long xid;
public static void main(String[] args) {
Replicator replicator = new Replicator();
replicator.start();
}
public void start() {
try {
config = new Config();
config.load();
rocketMQProducer = new RocketMQProducer(config);
rocketMQProducer.start();
BinlogPositionLogThread binlogPositionLogThread = new BinlogPositionLogThread(this);
binlogPositionLogThread.start();
eventProcessor = new EventProcessor(this);
eventProcessor.start();
} catch (Exception e) {
LOGGER.error("Start error.", e);
System.exit(1);
}
}
public void commit(Transaction transaction, boolean isComplete) {
String json = transaction.toJson();
for (int i = 0; i < 3; i++) {
try {
if (isComplete) {
long offset = rocketMQProducer.push(json);
synchronized (lock) {
xid = transaction.getXid();
nextBinlogPosition = transaction.getNextBinlogPosition();
nextQueueOffset = offset;
}
} else {
rocketMQProducer.push(json);
}
break;
} catch (Exception e) {
LOGGER.error("Push error,retry:" + (i + 1) + ",", e);
}
}
}
public void logPosition() {
String binlogFilename = null;
long xid = 0L;
long nextPosition = 0L;
long nextOffset = 0L;
synchronized (lock) {
if (nextBinlogPosition != null) {
xid = this.xid;
binlogFilename = nextBinlogPosition.getBinlogFilename();
nextPosition = nextBinlogPosition.getPosition();
nextOffset = nextQueueOffset;
}
}
if (binlogFilename != null) {
POSITION_LOGGER.info("XID: {}, BINLOG_FILE: {}, NEXT_POSITION: {}, NEXT_OFFSET: {}",
xid, binlogFilename, nextPosition, nextOffset);
}
}
public Config getConfig() {
return config;
}
public BinlogPosition getNextBinlogPosition() {
return nextBinlogPosition;
}
}