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JBTM-3005 Update to add a quickstart with the commmon-dbcp2 and tomcat #221

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merged 1 commit into from Apr 11, 2018
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JBTM-3005 Update to add a quickstart with the commmon-dbcp2 and tomcat #221

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33 changes: 33 additions & 0 deletions dbcp2-and-tomcat/README.md
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### Description

This quickstart shows how to get started with Narayana and common-dbcp2 with a simple JDBC example.

### Start Tomcat

Start Tomcat in the usual manner, for example:
`$TOMCAT_HOME/bin/catalina.sh run`

### Build the app

`mvn clean package`

### Deploy the app

`cp target/*.war apache-tomcat-7.0.78/webapps/`

### Get strings from the database

`curl http://localhost:8080/dbcp2-and-tomcat`

### Save string to the database

`curl --data "test" http://localhost:8080/dbcp2-and-tomcat`

### Crash and Recovery

`curl --data "crash" http://localhost:8080/dbcp2-and-tomcat/crash`

Restart Tomcat
`$TOMCAT_HOME/bin/catalina.sh run`
`curl http://localhost:8080/dbcp2-and-tomcat/recovery`

95 changes: 95 additions & 0 deletions dbcp2-and-tomcat/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
<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>
<groupId>io.narayana</groupId>
<artifactId>dbcp2-and-tomcat</artifactId>
<version>5.8.1.Final-SNAPSHOT</version>
<packaging>war</packaging>

<properties>
<version.narayana>5.8.1.Final-SNAPSHOT</version.narayana>
<version.resteasy>3.0.23.Final</version.resteasy>
<version.h2>1.4.195</version.h2>
<version.tomcat.plugin>2.2</version.tomcat.plugin>
<version.commons-dbcp2>2.1.1</version.commons-dbcp2>
<version.commons-pool2>2.4.3</version.commons-pool2>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>

<dependencies>
<dependency>
<groupId>org.jboss.narayana.tomcat</groupId>
<artifactId>tomcat-jta</artifactId>
<version>${version.narayana}</version>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-servlet-initializer</artifactId>
<version>${version.resteasy}</version>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jackson-provider</artifactId>
<version>${version.resteasy}</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-dbcp2</artifactId>
<version>${version.commons-dbcp2}</version>
<exclusions>
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
<version>${version.commons-pool2}</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>${version.h2}</version>
</dependency>
</dependencies>

<build>
<finalName>${artifactId}</finalName>
</build>

<profiles>
<profile>
<id>unix</id>
<activation>
<os>
<family>unix</family>
</os>
</activation>
<build>
<plugins>
<plugin>
<artifactId>exec-maven-plugin</artifactId>
<groupId>org.codehaus.mojo</groupId>
<executions>
<execution>
<id>Run tests</id>
<phase>integration-test</phase>
<goals>
<goal>exec</goal>
</goals>
<configuration>
<executable>bash</executable>
<commandlineArgs>${basedir}/run.sh</commandlineArgs>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>
45 changes: 45 additions & 0 deletions dbcp2-and-tomcat/run.sh
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#/bin/bash
set -m

export QUICKSTART_NAME=${PWD##*/}
TOMCAT_VERSION=7.0.82
wget -nc https://archive.apache.org/dist/tomcat/tomcat-7/v$TOMCAT_VERSION/bin/apache-tomcat-$TOMCAT_VERSION.zip
rm -rf apache-tomcat-$TOMCAT_VERSION
unzip apache-tomcat-$TOMCAT_VERSION.zip
export TOMCAT_HOME=$(pwd)/apache-tomcat-$TOMCAT_VERSION/
chmod +x $TOMCAT_HOME/bin/catalina.sh
mvn package
rm -rf $TOMCAT_HOME/webapps/${QUICKSTART_NAME}/
cp target/${QUICKSTART_NAME}.war $TOMCAT_HOME/webapps/
JPDA_SUSPEND=n $TOMCAT_HOME/bin/catalina.sh jpda run &
sleep 10

for i in {1..10}
do
curl -f --data "test$i" http://localhost:8080/${QUICKSTART_NAME}
done
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Would it be possible to add in something that calls the crash endpoint and then the recover one and verifies the json has the new string dao please?

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@zhfeng zhfeng Apr 11, 2018 •
edited

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yeah, I will do.

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Thanks!


curl -f http://localhost:8080/${QUICKSTART_NAME}

# remove all strings
curl -f -X DELETE http://localhost:8080/${QUICKSTART_NAME}

# crash the application
curl -f --data "crash" http://localhost:8080/${QUICKSTART_NAME}/crash

# restart the Tomcat
JPDA_SUSPEND=n $TOMCAT_HOME/bin/catalina.sh jpda run &

# verify the recovery
sleep 5
x=`curl -s http://localhost:8080/${QUICKSTART_NAME}/recovery`

$TOMCAT_HOME/bin/catalina.sh stop
rm -rf apache-tomcat-$TOMCAT_VERSION

if [ "$x" != "[\"crash\"]" ]; then
echo "Crash and Recovery failed"
exit -1
fi

echo "All tests succeeded"
204 changes: 204 additions & 0 deletions dbcp2-and-tomcat/src/main/java/io/narayana/DummyXAResource.java
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/*
* JBoss, Home of Professional Open Source
* Copyright 2016, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* Licensed 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 io.narayana;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Arrays;

import javax.transaction.xa.XAException;
import javax.transaction.xa.XAResource;
import javax.transaction.xa.Xid;

import com.arjuna.ats.arjuna.common.Uid;

/**
* This class is used solely for simulating system crash.
*
* @author <a href="mailto:gytis@redhat.com">Gytis Trikleris</a>
* @author <a href="mailto:zfeng@redhat.com">Amos Feng</a>
*/
public class DummyXAResource implements XAResource {

public static final String LOG_DIR = "target/DummyXAResource/";

private final boolean shouldCrash;

private Xid xid;

private File file;

public DummyXAResource(boolean shouldCrash) {
this.shouldCrash = shouldCrash;
}

/**
* Constructor used by recovery manager to recreate XAResource
*
* @param file File where Xid of the XAResource is stored
*/
public DummyXAResource(File file) throws IOException {
this.shouldCrash = false;
this.file = file;
this.xid = getXidFromFile(file);
}

public int prepare(final Xid xid) throws XAException {
System.out.println("Preparing " + DummyXAResource.class.getSimpleName());

this.file = writeXidToFile(xid, LOG_DIR);

return XA_OK;
}

public void commit(final Xid xid, final boolean arg1) throws XAException {
System.out.println("Committing " + DummyXAResource.class.getSimpleName());

if (shouldCrash) {
System.out.println("Crashing the system");
Runtime.getRuntime().halt(1);
}

removeFile(file);
this.file = null;
this.xid = null;
}

public void rollback(final Xid xid) throws XAException {
System.out.println("Rolling back " + DummyXAResource.class.getSimpleName());

removeFile(file);
this.file = null;
this.xid = null;
}

public boolean isSameRM(XAResource xaResource) throws XAException {
if (!(xaResource instanceof DummyXAResource)) {
return false;
}

DummyXAResource other = (DummyXAResource) xaResource;

return xid != null && other.xid != null && xid.getFormatId() == other.xid.getFormatId()
&& Arrays.equals(xid.getGlobalTransactionId(), other.xid.getGlobalTransactionId())
&& Arrays.equals(xid.getBranchQualifier(), other.xid.getBranchQualifier());
}

public Xid[] recover(int flag) throws XAException {
return new Xid[]{ xid };
}

public void start(Xid xid, int flags) throws XAException {

}

public void end(Xid xid, int flags) throws XAException {

}

public void forget(Xid xid) throws XAException {

}

public int getTransactionTimeout() throws XAException {
return 0;
}

public boolean setTransactionTimeout(final int seconds) throws XAException {
return true;
}

private Xid getXidFromFile(File file) throws IOException {
try (DataInputStream inputStream = new DataInputStream(new FileInputStream(file))) {
int formatId = inputStream.readInt();
int globalTransactionIdLength = inputStream.readInt();
byte[] globalTransactionId = new byte[globalTransactionIdLength];
inputStream.read(globalTransactionId, 0, globalTransactionIdLength);
int branchQualifierLength = inputStream.readInt();
byte[] branchQualifier = new byte[branchQualifierLength];
inputStream.read(branchQualifier, 0, branchQualifierLength);

return new XidImpl(formatId, globalTransactionId, branchQualifier);
}
}

private File writeXidToFile(Xid xid, String directory) throws XAException {
File dir = new File(directory);

if (!dir.mkdirs()) {
throw new XAException(XAException.XAER_RMERR);
}

File file = new File(dir, new Uid().fileStringForm() + "_");

try (DataOutputStream outputStream = new DataOutputStream(new FileOutputStream(file))) {
outputStream.writeInt(xid.getFormatId());
outputStream.writeInt(xid.getGlobalTransactionId().length);
outputStream.write(xid.getGlobalTransactionId(), 0, xid.getGlobalTransactionId().length);
outputStream.writeInt(xid.getBranchQualifier().length);
outputStream.write(xid.getBranchQualifier(), 0, xid.getBranchQualifier().length);
outputStream.flush();
} catch (IOException e) {
throw new XAException(XAException.XAER_RMERR);
}

return file;
}

private void removeFile(File file) throws XAException {
if (file != null) {
if (!file.delete()) {
throw new XAException(XAException.XA_RETRY);
}
}
}

private class XidImpl implements Xid {

private final int formatId;

private final byte[] globalTransactionId;

private final byte[] branchQualifier;

public XidImpl(int formatId, byte[] globalTransactionId, byte[] branchQualifier) {
this.formatId = formatId;
this.globalTransactionId = globalTransactionId;
this.branchQualifier = branchQualifier;
}

@Override
public int getFormatId() {
return formatId;
}

@Override
public byte[] getGlobalTransactionId() {
return globalTransactionId;
}

@Override
public byte[] getBranchQualifier() {
return branchQualifier;
}

}
}