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2014-09-23 15:11:35 +08:00
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123
example/pom.xml Normal file
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.alibaba.otter</groupId>
<artifactId>canal</artifactId>
<version>1.0.19-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<groupId>com.alibaba.otter</groupId>
<artifactId>canal.example</artifactId>
<packaging>jar</packaging>
<name>canal example module for otter ${project.version}</name>
<dependencies>
<dependency>
<groupId>com.alibaba.otter</groupId>
<artifactId>canal.client</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>com.alibaba.otter</groupId>
<artifactId>canal.protocol</artifactId>
<version>${project.version}</version>
</dependency>
<!-- test dependency -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<!-- deploy模块的packaging通常是jar，如果项目中没有java 源代码或资源文件，加上这一段配置使项目能通过构建 -->
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<addMavenDescriptor>true</addMavenDescriptor>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<!-- 这是最新版本，推荐使用这个版本 -->
<version>2.2.1</version>
<executions>
<execution>
<id>assemble</id>
<goals>
<goal>single</goal>
</goals>
<phase>package</phase>
</execution>
</executions>
<configuration>
<appendAssemblyId>false</appendAssemblyId>
<attach>false</attach>
</configuration>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>dev</id>
<activation>
<activeByDefault>true</activeByDefault>
<property>
<name>env</name>
<value>!release</value>
</property>
</activation>
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<!-- maven assembly插件需要一个描述文件 来告诉插件包的结构以及打包所需的文件来自哪里 -->
<descriptors>
<descriptor>${basedir}/src/main/assembly/dev.xml</descriptor>
</descriptors>
<finalName>canal-example</finalName>
<outputDirectory>${project.build.directory}</outputDirectory>
</configuration>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>release</id>
<activation>
<property>
<name>env</name>
<value>release</value>
</property>
</activation>
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<!-- 发布模式使用的maven assembly插件描述文件 -->
<descriptors>
<descriptor>${basedir}/src/main/assembly/release.xml</descriptor>
</descriptors>
<!-- 如果一个应用的包含多个deploy模块，如果使用同样的包名， 如果把它们复制的一个目录中可能会失败，所以包名加了 artifactId以示区分 -->
<finalName>${project.artifactId}-${project.version}</finalName>
<!-- scm 要求 release 模式打出的包放到顶级目录下的target子目录中 -->
<outputDirectory>${project.parent.build.directory}</outputDirectory>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>

54
example/src/main/assembly/dev.xml Normal file
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<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0 http://maven.apache.org/xsd/assembly-1.1.0.xsd">
<id>dist</id>
<formats>
<format>dir</format>
</formats>
<includeBaseDirectory>false</includeBaseDirectory>
<fileSets>
<fileSet>
<directory>.</directory>
<outputDirectory>/</outputDirectory>
<includes>
<include>README*</include>
</includes>
</fileSet>
<fileSet>
<directory>./src/main/bin</directory>
<outputDirectory>bin</outputDirectory>
<includes>
<include>**/*</include>
</includes>
<fileMode>0755</fileMode>
</fileSet>
<fileSet>
<directory>./src/main/conf</directory>
<outputDirectory>/conf</outputDirectory>
<includes>
<include>**/*</include>
</includes>
</fileSet>
<fileSet>
<directory>./src/main/resources</directory>
<outputDirectory>/conf</outputDirectory>
<includes>
<include>**/*</include>
</includes>
</fileSet>
<fileSet>
<directory>target</directory>
<outputDirectory>logs</outputDirectory>
<excludes>
<exclude>**/*</exclude>
</excludes>
</fileSet>
</fileSets>
<dependencySets>
<dependencySet>
<outputDirectory>lib</outputDirectory>
<excludes>
<exclude>junit:junit</exclude>
</excludes>
</dependencySet>
</dependencySets>
</assembly>

54
example/src/main/assembly/release.xml Normal file
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<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0 http://maven.apache.org/xsd/assembly-1.1.0.xsd">
<id>dist</id>
<formats>
<format>tar.gz</format>
</formats>
<includeBaseDirectory>false</includeBaseDirectory>
<fileSets>
<fileSet>
<directory>.</directory>
<outputDirectory>/</outputDirectory>
<includes>
<include>README*</include>
</includes>
</fileSet>
<fileSet>
<directory>./src/main/bin</directory>
<outputDirectory>bin</outputDirectory>
<includes>
<include>**/*</include>
</includes>
<fileMode>0755</fileMode>
</fileSet>
<fileSet>
<directory>./src/main/conf</directory>
<outputDirectory>/conf</outputDirectory>
<includes>
<include>**/*</include>
</includes>
</fileSet>
<fileSet>
<directory>./src/main/resources</directory>
<outputDirectory>/conf</outputDirectory>
<includes>
<include>**/*</include>
</includes>
</fileSet>
<fileSet>
<directory>target</directory>
<outputDirectory>logs</outputDirectory>
<excludes>
<exclude>**/*</exclude>
</excludes>
</fileSet>
</fileSets>
<dependencySets>
<dependencySet>
<outputDirectory>lib</outputDirectory>
<excludes>
<exclude>junit:junit</exclude>
</excludes>
</dependencySet>
</dependencySets>
</assembly>

26
example/src/main/bin/startup.bat Executable file
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@echo off
@if not "%ECHO%" == "" echo %ECHO%
@if "%OS%" == "Windows_NT" setlocal
set ENV_PATH=.\
if "%OS%" == "Windows_NT" set ENV_PATH=%~dp0%
set conf_dir=%ENV_PATH%\..\conf
set logback_configurationFile=%conf_dir%\logback.xml
set client_mode=Simple
if "%1%" != "" set client_mode=%1%
set CLASSPATH=%conf_dir%
set CLASSPATH=%conf_dir%\..\lib\*;%CLASSPATH%
set JAVA_MEM_OPTS= -Xms128m -Xmx512m -XX:PermSize=128m
set JAVA_OPTS_EXT= -Djava.awt.headless=true -Djava.net.preferIPv4Stack=true -Dapplication.codeset=UTF-8 -Dfile.encoding=UTF-8
set JAVA_DEBUG_OPT= -server -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=9199,server=y,suspend=n
set CANAL_OPTS= -DappName=otter-canal-example -Dlogback.configurationFile="%logback_configurationFile%"
set JAVA_OPTS= %JAVA_MEM_OPTS% %JAVA_OPTS_EXT% %JAVA_DEBUG_OPT% %CANAL_OPTS%
if "%client_mode%" == "Cluster"
java %JAVA_OPTS% -classpath "%CLASSPATH%" com.alibaba.otter.canal.example.ClusterCanalClientTest
else
java %JAVA_OPTS% -classpath "%CLASSPATH%" com.alibaba.otter.canal.example.SimpleCanalClientTest

96
example/src/main/bin/startup.sh Normal file
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#!/bin/bash
current_path=`pwd`
case "`uname`" in
Linux)
bin_abs_path=$(readlink -f $(dirname $0))
;;
*)
bin_abs_path=`cd $(dirname $0); pwd`
;;
esac
base=${bin_abs_path}/..
client_mode="Simple"
logback_configurationFile=$base/conf/logback.xml
export LANG=en_US.UTF-8
export BASE=$base
if [ -f $base/bin/canal.pid ] ; then
echo "found canal.pid , Please run stop.sh first ,then startup.sh" 2>&2
exit 1
fi
## set java path
if [ -z "$JAVA" ] ; then
JAVA=$(which java)
fi
ALIBABA_JAVA="/usr/alibaba/java/bin/java"
TAOBAO_JAVA="/opt/taobao/java/bin/java"
if [ -z "$JAVA" ]; then
if [ -f $ALIBABA_JAVA ] ; then
JAVA=$ALIBABA_JAVA
elif [ -f $TAOBAO_JAVA ] ; then
JAVA=$TAOBAO_JAVA
else
echo "Cannot find a Java JDK. Please set either set JAVA or put java (>=1.5) in your PATH." 2>&2
exit 1
fi
fi
case "$#"
in
0 )
;;
1 )
client_mode=$*
;;
2 )
if [ "$1" = "debug" ]; then
DEBUG_PORT=$2
DEBUG_SUSPEND="y"
JAVA_DEBUG_OPT="-Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=$DEBUG_PORT,server=y,suspend=$DEBUG_SUSPEND"
else
client_mode=$1
fi;;
* )
echo "THE PARAMETERS MUST BE TWO OR LESS.PLEASE CHECK AGAIN."
exit;;
esac
str=`file $JAVA_HOME/bin/java | grep 64-bit`
if [ -n "$str" ]; then
JAVA_OPTS="-server -Xms2048m -Xmx3072m -Xmn1024m -XX:SurvivorRatio=2 -XX:PermSize=96m -XX:MaxPermSize=256m -Xss256k -XX:-UseAdaptiveSizePolicy -XX:MaxTenuringThreshold=15 -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -XX:+HeapDumpOnOutOfMemoryError"
else
JAVA_OPTS="-server -Xms1024m -Xmx1024m -XX:NewSize=256m -XX:MaxNewSize=256m -XX:MaxPermSize=128m "
fi
JAVA_OPTS=" $JAVA_OPTS -Djava.awt.headless=true -Djava.net.preferIPv4Stack=true -Dfile.encoding=UTF-8"
CANAL_OPTS="-DappName=otter-canal-example -Dlogback.configurationFile=$logback_configurationFile"
if [ -e $logback_configurationFile ]
then
for i in $base/lib/*;
do CLASSPATH=$i:"$CLASSPATH";
done
CLASSPATH="$base/conf:$CLASSPATH";
echo "cd to $bin_abs_path for workaround relative path"
cd $bin_abs_path
echo LOG CONFIGURATION : $logback_configurationFile
echo client mode : $client_mode
echo CLASSPATH :$CLASSPATH
if [ $client_mode == "Cluster" ] ; then
$JAVA $JAVA_OPTS $JAVA_DEBUG_OPT $CANAL_OPTS -classpath .:$CLASSPATH com.alibaba.otter.canal.example.ClusterCanalClientTest 1>>$base/bin/nohup.out 2>&1 &
else
$JAVA $JAVA_OPTS $JAVA_DEBUG_OPT $CANAL_OPTS -classpath .:$CLASSPATH com.alibaba.otter.canal.example.SimpleCanalClientTest 1>>$base/bin/nohup.out 2>&1 &
fi
echo $! > $base/bin/canal.pid
echo "cd to $current_path for continue"
cd $current_path
else
echo "client mode("$client_mode") OR log configration file($logback_configurationFile) is not exist,please create then first!"
fi

53
example/src/main/bin/stop.sh Normal file
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#!/bin/bash
cygwin=false;
case "`uname`" in
CYGWIN*)
cygwin=true
;;
esac
get_pid() {
STR=$1
PID=$2
if $cygwin; then
JAVA_CMD="$JAVA_HOME\bin\java"
JAVA_CMD=`cygpath --path --unix $JAVA_CMD`
JAVA_PID=`ps |grep $JAVA_CMD |awk '{print $1}'`
else
if [ ! -z "$PID" ]; then
JAVA_PID=`ps -C java -f --width 1000|grep "$STR"|grep "$PID"|grep -v grep|awk '{print $2}'`
else
JAVA_PID=`ps -C java -f --width 1000|grep "$STR"|grep -v grep|awk '{print $2}'`
fi
fi
echo $JAVA_PID;
}
base=`dirname $0`/..
pidfile=$base/bin/canal.pid
if [ ! -f "$pidfile" ];then
echo "canal is not running. exists"
exit
fi
pid=`cat $pidfile`
if [ "$pid" == "" ] ; then
pid=`get_pid "appName=otter-canal-example"`
fi
echo -e "`hostname`: stopping canal $pid ... "
kill $pid
LOOPS=0
while (true);
do
gpid=`get_pid "appName=otter-canal-example" "$pid"`
if [ "$gpid" == "" ] ; then
echo "Oook! cost:$LOOPS"
`rm $pidfile`
break;
fi
let LOOPS=LOOPS+1
sleep 1
done

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example/src/main/conf/logback.xml Normal file
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<configuration scan="true" scanPeriod=" 5 seconds">
<jmxConfigurator />
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{56} - %msg%n
</pattern>
</encoder>
</appender>
<appender name="CANAL-ROOT" class="ch.qos.logback.classic.sift.SiftingAppender">
<discriminator>
<Key>destination</Key>
<DefaultValue>canal</DefaultValue>
</discriminator>
<sift>
<appender name="FILE-${destination}" class="ch.qos.logback.core.rolling.RollingFileAppender">
<File>../logs/${destination}/${destination}.log</File>
<rollingPolicy
class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- rollover daily -->
<fileNamePattern>../logs/${destination}/%d{yyyy-MM-dd}/${destination}-%d{yyyy-MM-dd}-%i.log.gz</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<!-- or whenever the file size reaches 100MB -->
<maxFileSize>512MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
<maxHistory>60</maxHistory>
</rollingPolicy>
<encoder>
<pattern>
%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{56} - %msg%n
</pattern>
</encoder>
</appender>
</sift>
</appender>
<appender name="ENTRY_LOG" class="ch.qos.logback.classic.sift.SiftingAppender">
<discriminator>
<Key>destination</Key>
<DefaultValue>canal</DefaultValue>
</discriminator>
<sift>
<appender name="ENTRY_LOG_${destination}"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<File>../logs/${destination}/entry.log</File>
<rollingPolicy
class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- rollover daily -->
<fileNamePattern>../logs/${destination}/%d{yyyy-MM-dd}/entry-%d{yyyy-MM-dd}-%i.log.gz</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>512MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
<maxHistory>60</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%msg</pattern>
</encoder>
</appender>
</sift>
</appender>
<logger name="com.alibaba.otter.canal.example.AbstractCanalClientTest" additivity="false">
<level value="INFO" />
<appender-ref ref="ENTRY_LOG" />
</logger>
<root level="INFO">
<!--
<appender-ref ref="STDOUT"/>
-->
<appender-ref ref="CANAL-ROOT" />
</root>
</configuration>

253
example/src/main/java/com/alibaba/otter/canal/example/AbstractCanalClientTest.java Normal file
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package com.alibaba.otter.canal.example;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import org.apache.commons.lang.SystemUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;
import org.springframework.util.Assert;
import org.springframework.util.CollectionUtils;
import com.alibaba.otter.canal.client.CanalConnector;
import com.alibaba.otter.canal.protocol.CanalEntry.Column;
import com.alibaba.otter.canal.protocol.CanalEntry.Entry;
import com.alibaba.otter.canal.protocol.CanalEntry.EntryType;
import com.alibaba.otter.canal.protocol.CanalEntry.EventType;
import com.alibaba.otter.canal.protocol.CanalEntry.RowChange;
import com.alibaba.otter.canal.protocol.CanalEntry.RowData;
import com.alibaba.otter.canal.protocol.CanalEntry.TransactionBegin;
import com.alibaba.otter.canal.protocol.CanalEntry.TransactionEnd;
import com.alibaba.otter.canal.protocol.Message;
import com.google.protobuf.InvalidProtocolBufferException;
/**
* 测试基类
*
* @author jianghang 2013-4-15 下午04:17:12
* @version 1.0.4
*/
public class AbstractCanalClientTest {
protected final static Logger logger = LoggerFactory.getLogger(AbstractCanalClientTest.class);
protected static final String SEP = SystemUtils.LINE_SEPARATOR;
protected static final String DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
protected volatile boolean running = false;
protected Thread.UncaughtExceptionHandler handler = new Thread.UncaughtExceptionHandler() {
public void uncaughtException(Thread t, Throwable e) {
logger.error("parse events has an error", e);
}
};
protected Thread thread = null;
protected CanalConnector connector;
protected static String context_format = null;
protected static String row_format = null;
protected static String transaction_format = null;
protected String destination;
static {
context_format = SEP + "****************************************************" + SEP;
context_format += "* Batch Id: [{}] ,count : [{}] , memsize : [{}] , Time : {}" + SEP;
context_format += "* Start : [{}] " + SEP;
context_format += "* End : [{}] " + SEP;
context_format += "****************************************************" + SEP;
row_format = SEP
+ "----------------> binlog[{}:{}] , name[{},{}] , eventType : {} , executeTime : {} , delay : {}ms"
+ SEP;
transaction_format = SEP + "================> binlog[{}:{}] , executeTime : {} , delay : {}ms" + SEP;
}
public AbstractCanalClientTest(String destination){
this(destination, null);
}
public AbstractCanalClientTest(String destination, CanalConnector connector){
this.destination = destination;
this.connector = connector;
}
protected void start() {
Assert.notNull(connector, "connector is null");
thread = new Thread(new Runnable() {
public void run() {
process();
}
});
thread.setUncaughtExceptionHandler(handler);
thread.start();
running = true;
}
protected void stop() {
if (!running) {
return;
}
running = false;
if (thread != null) {
try {
thread.join();
} catch (InterruptedException e) {
// ignore
}
}
MDC.remove("destination");
}
protected void process() {
int batchSize = 5 * 1024;
while (running) {
try {
MDC.put("destination", destination);
connector.connect();
connector.subscribe();
while (running) {
Message message = connector.getWithoutAck(batchSize); // 获取指定数量的数据
long batchId = message.getId();
int size = message.getEntries().size();
if (batchId == -1 || size == 0) {
// try {
// Thread.sleep(1000);
// } catch (InterruptedException e) {
// }
} else {
printSummary(message, batchId, size);
printEntry(message.getEntries());
}
connector.ack(batchId); // 提交确认
// connector.rollback(batchId); // 处理失败, 回滚数据
}
} catch (Exception e) {
logger.error("process error!", e);
} finally {
connector.disconnect();
MDC.remove("destination");
}
}
}
private void printSummary(Message message, long batchId, int size) {
long memsize = 0;
for (Entry entry : message.getEntries()) {
memsize += entry.getHeader().getEventLength();
}
String startPosition = null;
String endPosition = null;
if (!CollectionUtils.isEmpty(message.getEntries())) {
startPosition = buildPositionForDump(message.getEntries().get(0));
endPosition = buildPositionForDump(message.getEntries().get(message.getEntries().size() - 1));
}
SimpleDateFormat format = new SimpleDateFormat(DATE_FORMAT);
logger.info(context_format, new Object[] { batchId, size, memsize, format.format(new Date()), startPosition,
endPosition });
}
protected String buildPositionForDump(Entry entry) {
long time = entry.getHeader().getExecuteTime();
Date date = new Date(time);
SimpleDateFormat format = new SimpleDateFormat(DATE_FORMAT);
return entry.getHeader().getLogfileName() + ":" + entry.getHeader().getLogfileOffset() + ":"
+ entry.getHeader().getExecuteTime() + "(" + format.format(date) + ")";
}
protected void printEntry(List<Entry> entrys) {
for (Entry entry : entrys) {
long executeTime = entry.getHeader().getExecuteTime();
long delayTime = new Date().getTime() - executeTime;
if (entry.getEntryType() == EntryType.TRANSACTIONBEGIN || entry.getEntryType() == EntryType.TRANSACTIONEND) {
if (entry.getEntryType() == EntryType.TRANSACTIONBEGIN) {
TransactionBegin begin = null;
try {
begin = TransactionBegin.parseFrom(entry.getStoreValue());
} catch (InvalidProtocolBufferException e) {
throw new RuntimeException("parse event has an error , data:" + entry.toString(), e);
}
// 打印事务头信息，执行的线程id，事务耗时
logger.info(transaction_format,
new Object[] { entry.getHeader().getLogfileName(),
String.valueOf(entry.getHeader().getLogfileOffset()),
String.valueOf(entry.getHeader().getExecuteTime()), String.valueOf(delayTime) });
logger.info(" BEGIN ----> Thread id: {}", begin.getThreadId());
} else if (entry.getEntryType() == EntryType.TRANSACTIONEND) {
TransactionEnd end = null;
try {
end = TransactionEnd.parseFrom(entry.getStoreValue());
} catch (InvalidProtocolBufferException e) {
throw new RuntimeException("parse event has an error , data:" + entry.toString(), e);
}
// 打印事务提交信息，事务id
logger.info("----------------\n");
logger.info(" END ----> transaction id: {}", end.getTransactionId());
logger.info(transaction_format,
new Object[] { entry.getHeader().getLogfileName(),
String.valueOf(entry.getHeader().getLogfileOffset()),
String.valueOf(entry.getHeader().getExecuteTime()), String.valueOf(delayTime) });
}
continue;
}
if (entry.getEntryType() == EntryType.ROWDATA) {
RowChange rowChage = null;
try {
rowChage = RowChange.parseFrom(entry.getStoreValue());
} catch (Exception e) {
throw new RuntimeException("parse event has an error , data:" + entry.toString(), e);
}
EventType eventType = rowChage.getEventType();
logger.info(row_format,
new Object[] { entry.getHeader().getLogfileName(),
String.valueOf(entry.getHeader().getLogfileOffset()), entry.getHeader().getSchemaName(),
entry.getHeader().getTableName(), eventType,
String.valueOf(entry.getHeader().getExecuteTime()), String.valueOf(delayTime) });
if (eventType == EventType.QUERY || rowChage.getIsDdl()) {
logger.info(" sql ----> " + rowChage.getSql() + SEP);
continue;
}
for (RowData rowData : rowChage.getRowDatasList()) {
if (eventType == EventType.DELETE) {
printColumn(rowData.getBeforeColumnsList());
} else if (eventType == EventType.INSERT) {
printColumn(rowData.getAfterColumnsList());
} else {
printColumn(rowData.getAfterColumnsList());
}
}
}
}
}
protected void printColumn(List<Column> columns) {
for (Column column : columns) {
StringBuilder builder = new StringBuilder();
builder.append(column.getName() + " : " + column.getValue());
builder.append(" type=" + column.getMysqlType());
if (column.getUpdated()) {
builder.append(" update=" + column.getUpdated());
}
builder.append(SEP);
logger.info(builder.toString());
}
}
public void setConnector(CanalConnector connector) {
this.connector = connector;
}
}

52
example/src/main/java/com/alibaba/otter/canal/example/ClusterCanalClientTest.java Normal file
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package com.alibaba.otter.canal.example;
import org.apache.commons.lang.exception.ExceptionUtils;
import com.alibaba.otter.canal.client.CanalConnector;
import com.alibaba.otter.canal.client.CanalConnectors;
/**
* 集群模式的测试例子
*
* @author jianghang 2013-4-15 下午04:19:20
* @version 1.0.4
*/
public class ClusterCanalClientTest extends AbstractCanalClientTest {
public ClusterCanalClientTest(String destination){
super(destination);
}
public static void main(String args[]) {
String destination = "example";
// 基于固定canal server的地址，建立链接，其中一台server发生crash，可以支持failover
// CanalConnector connector = CanalConnectors.newClusterConnector(
// Arrays.asList(new InetSocketAddress(
// AddressUtils.getHostIp(),
// 11111)),
// "stability_test", "", "");
// 基于zookeeper动态获取canal server的地址，建立链接，其中一台server发生crash，可以支持failover
CanalConnector connector = CanalConnectors.newClusterConnector("127.0.0.1:2181", destination, "", "");
final ClusterCanalClientTest clientTest = new ClusterCanalClientTest(destination);
clientTest.setConnector(connector);
clientTest.start();
Runtime.getRuntime().addShutdownHook(new Thread() {
public void run() {
try {
logger.info("## stop the canal client");
clientTest.stop();
} catch (Throwable e) {
logger.warn("##something goes wrong when stopping canal:\n{}", ExceptionUtils.getFullStackTrace(e));
} finally {
logger.info("## canal client is down.");
}
}
});
}
}

48
example/src/main/java/com/alibaba/otter/canal/example/SimpleCanalClientTest.java Normal file
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package com.alibaba.otter.canal.example;
import java.net.InetSocketAddress;
import org.apache.commons.lang.exception.ExceptionUtils;
import com.alibaba.otter.canal.client.CanalConnector;
import com.alibaba.otter.canal.client.CanalConnectors;
import com.alibaba.otter.canal.common.utils.AddressUtils;
/**
* 单机模式的测试例子
*
* @author jianghang 2013-4-15 下午04:19:20
* @version 1.0.4
*/
public class SimpleCanalClientTest extends AbstractCanalClientTest {
public SimpleCanalClientTest(String destination){
super(destination);
}
public static void main(String args[]) {
// 根据ip，直接创建链接，无HA的功能
String destination = "example";
CanalConnector connector = CanalConnectors.newSingleConnector(new InetSocketAddress(AddressUtils.getHostIp(),
11111), destination, "", "");
final SimpleCanalClientTest clientTest = new SimpleCanalClientTest(destination);
clientTest.setConnector(connector);
clientTest.start();
Runtime.getRuntime().addShutdownHook(new Thread() {
public void run() {
try {
logger.info("## stop the canal client");
clientTest.stop();
} catch (Throwable e) {
logger.warn("##something goes wrong when stopping canal:\n{}", ExceptionUtils.getFullStackTrace(e));
} finally {
logger.info("## canal client is down.");
}
}
});
}
}

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example/src/main/resources/logback.xml Normal file
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<configuration scan="true" scanPeriod=" 5 seconds">
<jmxConfigurator />
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{56} - %msg%n
</pattern>
</encoder>
</appender>
<appender name="ENTRY_LOG" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%msg</pattern>
</encoder>
</appender>
<logger name="com.alibaba.otter.canal.example.AbstractCanalClientTest" additivity="false">
<level value="INFO" />
<appender-ref ref="ENTRY_LOG" />
</logger>
<root level="INFO">
<appender-ref ref="STDOUT"/>
</root>
</configuration>