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https://github.com/alibaba/canal.git
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fixed format
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@@ -10,10 +10,10 @@ import org.junit.Assert;
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*/
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public abstract class AbstractKafkaTest {
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public static String topic = "example";
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public static String topic = "example";
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public static Integer partition = null;
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public static String groupId = "g1";
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public static String servers = "slave1:6667,slave2:6667,slave3:6667";
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public static String groupId = "g1";
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public static String servers = "slave1:6667,slave2:6667,slave3:6667";
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public void sleep(long time) {
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try {
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@@ -1,14 +1,15 @@
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package com.alibaba.otter.canal.kafka.client.running;
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import com.alibaba.otter.canal.kafka.client.KafkaCanalConnector;
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import com.alibaba.otter.canal.kafka.client.KafkaCanalConnectors;
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import com.alibaba.otter.canal.protocol.Message;
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import java.util.concurrent.TimeUnit;
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import org.apache.kafka.common.errors.WakeupException;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.util.Assert;
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import java.util.concurrent.TimeUnit;
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import com.alibaba.otter.canal.kafka.client.KafkaCanalConnector;
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import com.alibaba.otter.canal.kafka.client.KafkaCanalConnectors;
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import com.alibaba.otter.canal.protocol.Message;
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/**
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* Kafka client example
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@@ -17,28 +18,32 @@ import java.util.concurrent.TimeUnit;
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* @version 1.0.0
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*/
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public class CanalKafkaClientExample {
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protected final static Logger logger = LoggerFactory.getLogger(CanalKafkaClientExample.class);
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private KafkaCanalConnector connector;
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protected final static Logger logger = LoggerFactory.getLogger(CanalKafkaClientExample.class);
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private static volatile boolean running = false;
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private KafkaCanalConnector connector;
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private Thread thread = null;
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private static volatile boolean running = false;
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private Thread thread = null;
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private Thread.UncaughtExceptionHandler handler = new Thread.UncaughtExceptionHandler() {
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public void uncaughtException(Thread t, Throwable e) {
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logger.error("parse events has an error", e);
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}
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};
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public CanalKafkaClientExample(String servers, String topic, Integer partition, String groupId) {
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public void uncaughtException(Thread t, Throwable e) {
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logger.error("parse events has an error", e);
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}
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};
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public CanalKafkaClientExample(String servers, String topic, Integer partition, String groupId){
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connector = KafkaCanalConnectors.newKafkaConnector(servers, topic, partition, groupId);
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}
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public static void main(String[] args) {
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try {
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final CanalKafkaClientExample kafkaCanalClientExample = new CanalKafkaClientExample(AbstractKafkaTest.servers,
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AbstractKafkaTest.topic, AbstractKafkaTest.partition, AbstractKafkaTest.groupId);
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AbstractKafkaTest.topic,
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AbstractKafkaTest.partition,
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AbstractKafkaTest.groupId);
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logger.info("## start the kafka consumer: {}-{}", AbstractKafkaTest.topic, AbstractKafkaTest.groupId);
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kafkaCanalClientExample.start();
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logger.info("## the canal kafka consumer is running now ......");
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@@ -56,7 +61,8 @@ public class CanalKafkaClientExample {
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}
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});
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while (running) ;
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while (running)
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;
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} catch (Throwable e) {
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logger.error("## Something goes wrong when starting up the kafka consumer:", e);
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System.exit(0);
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@@ -91,12 +97,13 @@ public class CanalKafkaClientExample {
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}
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private void process() {
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while (!running) ;
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while (!running)
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;
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try {
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connector.subscribe();
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while (running) {
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try {
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Message message = connector.getWithoutAck(1L, TimeUnit.SECONDS); //获取message
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Message message = connector.getWithoutAck(1L, TimeUnit.SECONDS); // 获取message
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if (message == null) {
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continue;
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}
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@@ -129,4 +136,4 @@ public class CanalKafkaClientExample {
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}
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connector.close();
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}
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}
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}
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@@ -1,16 +1,17 @@
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package com.alibaba.otter.canal.kafka.client.running;
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import com.alibaba.otter.canal.kafka.client.KafkaCanalConnector;
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import com.alibaba.otter.canal.kafka.client.KafkaCanalConnectors;
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import com.alibaba.otter.canal.protocol.Message;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.TimeUnit;
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import org.apache.kafka.common.errors.WakeupException;
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import org.junit.Test;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.TimeUnit;
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import com.alibaba.otter.canal.kafka.client.KafkaCanalConnector;
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import com.alibaba.otter.canal.kafka.client.KafkaCanalConnectors;
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import com.alibaba.otter.canal.protocol.Message;
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/**
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* Kafka consumer获取Message的测试例子
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@@ -19,7 +20,8 @@ import java.util.concurrent.TimeUnit;
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* @version 1.0.0
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*/
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public class KafkaClientRunningTest extends AbstractKafkaTest {
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private Logger logger = LoggerFactory.getLogger(KafkaClientRunningTest.class);
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private Logger logger = LoggerFactory.getLogger(KafkaClientRunningTest.class);
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private boolean running = true;
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@@ -30,6 +32,7 @@ public class KafkaClientRunningTest extends AbstractKafkaTest {
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final KafkaCanalConnector connector = KafkaCanalConnectors.newKafkaConnector(servers, topic, partition, groupId);
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executor.submit(new Runnable() {
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@Override
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public void run() {
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connector.subscribe();
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@@ -41,7 +44,7 @@ public class KafkaClientRunningTest extends AbstractKafkaTest {
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}
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connector.ack();
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} catch (WakeupException e) {
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//ignore
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// ignore
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}
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}
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connector.unsubscribe();
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