How to create apache camel XA connection using JNDI in Atomikos - jms

Question

Hi i am trying to create a XA transaction for camel and jdbc using atomikos but i have JNDI to set up a XA jdbc transaction i am having issues configuring it.
Below is my code and i am getting cannot write to the class exception
<!-- Atomikos and Spring transaction configuration -->
<!-- JMS config; with XAConnectionFactory -->
<bean id="xa.amqConnectionFactory" class="org.apache.activemq.spring.ActiveMQXAConnectionFactory">
<property name="brokerURL" value="tcp://localhost:61616"/>
</bean>
<!-- nothing transactional here, this connection factory will be used from the test harness -->
<bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
<property name="brokerURL" value="tcp://localhost:61616"/>
</bean>
<!-- Atomikos JTA configuration, nothing specific to Spring here -->
<bean id="atomikos.connectionFactory" class="com.atomikos.jms.AtomikosConnectionFactoryBean"
init-method="init" destroy-method="close">
<property name="uniqueResourceName" value="My_MQSeries_XA_RMI"/>
<property name="xaConnectionFactory" ref="xa.amqConnectionFactory"/>
<!-- XAConnectionFactory -->
<property name="maxPoolSize" value="10"/>
<property name="ignoreSessionTransactedFlag" value="false"/>
</bean>
<!-- database config; the XADataSource bean is both a DataSource and an XADataSource-->
<!-- <import resource="xa-embedded-db-context.xml"/> -->
<bean id="db2jndi" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value = "jndi NAMe"/>
</bean>
<!-- <bean id="XADataSource" class="MyDAOclass">
<property name="MyDAOmethod" ref="db2jndi"/>
</bean> -->
<bean id="atomikos.dataSource" class="com.atomikos.jdbc.AtomikosDataSourceBean">
<property name="xaDataSource" ref="XADataSource"/>
<!-- XADataSource -->
</bean>
<!-- javax.transaction.TransactionManager -->
<bean id="atomikos.transactionManager"
class="com.atomikos.icatch.jta.UserTransactionManager"
init-method="init"
destroy-method="close"
depends-on="atomikos.connectionFactory,atomikos.dataSource">
<property name="forceShutdown" value="false"/>
</bean>
<!-- javax.transaction.UserTransaction -->
<bean id="atomikos.userTransaction"
class="com.atomikos.icatch.jta.UserTransactionImp">
<property name="transactionTimeout" value="300"/>
</bean>
<!-- This is the Spring wrapper over the JTA configuration -->
<!-- org.springframework.transaction.PlatformTransactionManager -->
<bean id="jta.transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager">
<property name="transactionManager" ref="atomikos.transactionManager"/>
<property name="userTransaction" ref="atomikos.userTransaction"/>
</bean>
<!-- Camel components -->
<bean id="jms" class="org.apache.activemq.camel.component.ActiveMQComponent">
<property name="connectionFactory" ref="atomikos.connectionFactory"/>
<property name="transactionManager" ref="jta.transactionManager"/>
</bean>
<!-- this component is used only from the test harness -->
<bean id="nonTxJms" class="org.apache.activemq.camel.component.ActiveMQComponent">
<property name="connectionFactory" ref="connectionFactory"/>
</bean>
<bean id="sql" class="org.apache.camel.component.sql.SqlComponent">
<property name="dataSource" ref="atomikos.dataSource"/>
</bean>
<!-- Policy -->
<bean id="PROPAGATION_REQUIRED" class="org.apache.camel.spring.spi.SpringTransactionPolicy">
<property name="transactionManager" ref="jta.transactionManager"/>
<!-- Atomikos TX Manager -->
<property name="propagationBehaviorName" value="PROPAGATION_REQUIRED"/>
</bean>
If anyone has worked on apache camel using XA transactions can you guys provide me your sample config file so that i can use and modify it.

Answer 1

This works for me. It looks like you've missed the ActiveMQResourceManager. Also ensure you use a XAPooledConnectionFactory otherwise your MDBs will disconnect after every bind to check for a message (and CPU on the broker will go through the roof).
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd">
<bean id="env" class="java.lang.String">
<constructor-arg value="test-junit"/>
</bean>
<!-- JMS configuration -->
<bean id="resourceManager" class="org.apache.activemq.pool.ActiveMQResourceManager"
init-method="recoverResource">
<property name="transactionManager" ref="atomikosTransactionManager" />
<property name="connectionFactory" ref="pooledJmsXaConnectionFactory" />
<property name="resourceName" value="activemq.default" />
</bean>
<bean id="transactionManager"
class="org.springframework.transaction.jta.JtaTransactionManager">
<property name="transactionManager" ref="atomikosTransactionManager" />
<property name="userTransaction" ref="userTransaction" />
</bean>
<bean id="pooledJmsXaConnectionFactory" class="org.apache.activemq.pool.XaPooledConnectionFactory"
init-method="start" destroy-method="stop">
<property name="maxConnections" value="8" />
<property name="connectionFactory" ref="jmsXaConnectionFactory" />
<property name="transactionManager" ref="atomikosTransactionManager" />
</bean>
<!-- <bean id="pooledJmsXaConnectionFactory" class="com.atomikos.jms.AtomikosConnectionFactoryBean"
init-method="init" destroy-method="close"> <property name="poolSize" value="8"
/> <property name="uniqueResourceName" value="activemq" /> <property name="xaConnectionFactory"
ref="jmsXaConnectionFactory" /> </bean> -->
<bean id="jmsXaConnectionFactory" class="org.apache.activemq.ActiveMQXAConnectionFactory">
<property name="brokerURL" value="tcp://localhost:61616" />
<property name="redeliveryPolicy">
<bean class="org.apache.activemq.RedeliveryPolicy">
<property name="maximumRedeliveries" value="0" />
</bean>
</property>
</bean>
<bean id="jms" class="org.apache.activemq.camel.component.ActiveMQComponent">
<property name="connectionFactory" ref="pooledJmsXaConnectionFactory" />
<property name="transacted" value="false" />
<property name="transactionManager" ref="transactionManager" />
</bean>
<!-- JMS configuration for test enqueue/dequeue without transactions -->
<bean id="jmsConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
<property name="brokerURL" value="tcp://localhost:61616" />
</bean>
<bean id="myEmf"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
</property>
<property name="persistenceXmlLocation" value="classpath:META-INF/test-persistence.xml"/>
</bean>
<!-- JDBC configuration -->
<bean id="dataSource" class="org.apache.commons.dbcp2.managed.BasicManagedDataSource">
<property name="transactionManager" ref="atomikosTransactionManager" />
<!-- <property name="driverClassName" value="org.apache.derby.jdbc.EmbeddedXADataSource40" /> -->
<property name="driverClassName" value="org.apache.derby.jdbc.EmbeddedDriver" />
<property name="url" value="jdbc:derby:target/testdb;create=true" />
<property name="defaultAutoCommit" value="false" />
</bean>
<bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager"
init-method="init" destroy-method="close">
<property name="forceShutdown" value="false" />
</bean>
<bean id="userTransaction" class="com.atomikos.icatch.jta.UserTransactionImp">
<property name="transactionTimeout" value="120" />
</bean>
<!-- -->
<bean id="springContext" class="org.example.testutils.SpringContext"/>
</beans>