HornetQ is an open source project to build a multi-protocol, embeddable, very high performance, clustered, asynchronous messaging system. So far, we have learned about configuring hornetq standalone server and example of setting up basic messaging functionality. HornetQ comes with a lot of flexibility to be configured with some existing application frameworks. In this sequence, I am demonstrating the usage of HornetQ with Spring 3.
Lets do all the setup step by step.
Step 1) Create a maven project and convert it to eclipse java project.
Step 2) Update maven repository with spring 3 and hornetq dependencies.
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.howtodoinjava.app</groupId>
<artifactId>Spring3HornetQStandaloneIntegration</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>Spring3HornetQStandaloneIntegration</name>
<url>http://maven.apache.org</url>
<properties>
<org.springframework.version>3.0.5.RELEASE</org.springframework.version>
</properties>
<dependencies>
<!-- User Application Lib -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.14</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<!-- HornetQ Embedded Server -->
<dependency>
<groupId>org.hornetq</groupId>
<artifactId>hornetq-core</artifactId>
<version>2.0.0.GA</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.hornetq</groupId>
<artifactId>hornetq-jms</artifactId>
<version>2.0.0.GA</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.hornetq</groupId>
<artifactId>hornetq-logging</artifactId>
<version>2.0.0.GA</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.hornetq</groupId>
<artifactId>hornetq-transports</artifactId>
<version>2.0.0.GA</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.jboss.netty</groupId>
<artifactId>netty</artifactId>
<version>3.1.0.GA</version>
</dependency>
<dependency>
<groupId>org.jboss.javaee</groupId>
<artifactId>jboss-jms-api</artifactId>
<version>1.1.0.GA</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.jboss</groupId>
<artifactId>jboss-common-core</artifactId>
<version>2.2.10.GA</version>
</dependency>
<dependency>
<groupId>org.jboss.logging</groupId>
<artifactId>jboss-logging-spi</artifactId>
<version>2.0.5.GA</version>
</dependency>
<!--
Core utilities used by other modules.
Define this if you use Spring Utility APIs (org.springframework.core.*/org.springframework.util.*)
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
Expression Language (depends on spring-core)
Define this if you use Spring Expression APIs (org.springframework.expression.*)
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
Bean Factory and JavaBeans utilities (depends on spring-core)
Define this if you use Spring Bean APIs (org.springframework.beans.*)
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
Aspect Oriented Programming (AOP) Framework (depends on spring-core, spring-beans)
Define this if you use Spring AOP APIs (org.springframework.aop.*)
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
Application Context (depends on spring-core, spring-expression, spring-aop, spring-beans)
This is the central artifact for Spring's Dependency Injection Container and is generally always defined
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
Various Application Context utilities, including EhCache, JavaMail, Quartz, and Freemarker integration
Define this if you need any of these integrations
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
Transaction Management Abstraction (depends on spring-core, spring-beans, spring-aop, spring-context)
Define this if you use Spring Transactions or DAO Exception Hierarchy
(org.springframework.transaction.*/org.springframework.dao.*)
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
JDBC Data Access Library (depends on spring-core, spring-beans, spring-context, spring-tx)
Define this if you use Spring's JdbcTemplate API (org.springframework.jdbc.*)
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
Object-to-Relation-Mapping (ORM) integration with Hibernate, JPA, and iBatis.
(depends on spring-core, spring-beans, spring-context, spring-tx)
Define this if you need ORM (org.springframework.orm.*)
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
Object-to-XML Mapping (OXM) abstraction and integration with JAXB, JiBX, Castor, XStream, and XML Beans.
(depends on spring-core, spring-beans, spring-context)
Define this if you need OXM (org.springframework.oxm.*)
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
Web application development utilities applicable to both Servlet and Portlet Environments
(depends on spring-core, spring-beans, spring-context)
Define this if you use Spring MVC, or wish to use Struts, JSF, or another web framework with Spring (org.springframework.web.*)
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
Spring MVC for Servlet Environments (depends on spring-core, spring-beans, spring-context, spring-web)
Define this if you use Spring MVC with a Servlet Container such as Apache Tomcat (org.springframework.web.servlet.*)
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
Spring MVC for Portlet Environments (depends on spring-core, spring-beans, spring-context, spring-web)
Define this if you use Spring MVC with a Portlet Container (org.springframework.web.portlet.*)
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc-portlet</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--
Support for testing Spring applications with tools such as JUnit and TestNG
This artifact is generally always defined with a 'test' scope for the integration testing framework and unit testing stubs
-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${org.springframework.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
Step 3) Add two additional jars in lib folder. If time permit you, find maven dependencies for them and add in pom.xml.
- jnpserver-5.0.3.GA.jar
- org.springframework.jms-3.0.5.RELEASE.jar
Step 4) Copy following files from jboss distribution and put in class path. Or, simply copy below files given here.
hornetq-configuration.xml
<configuration xmlns="urn:hornetq"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:hornetq /schema/hornetq-configuration.xsd">
<connectors>
<connector name="netty">
<factory-class>org.hornetq.integration.transports.netty.NettyConnectorFactory</factory-class>
<param key="host" value="${hornetq.remoting.netty.host:localhost}"/>
<param key="port" value="${hornetq.remoting.netty.port:5445}"/>
</connector>
</connectors>
<acceptors>
<acceptor name="netty">
<factory-class>org.hornetq.integration.transports.netty.NettyAcceptorFactory</factory-class>
<param key="host" value="${hornetq.remoting.netty.host:localhost}"/>
<param key="port" value="${hornetq.remoting.netty.port:5445}"/>
</acceptor>
</acceptors>
<security-settings>
<security-setting match="#">
<permission type="createTempQueue" roles="guest"/>
<permission type="deleteTempQueue" roles="guest"/>
<permission type="consume" roles="guest"/>
<permission type="send" roles="guest"/>
</security-setting>
</security-settings>
<address-settings>
<!--default for catch all-->
<address-setting match="#">
<dead-letter-address>jms.queue.DLQ</dead-letter-address>
<expiry-address>jms.queue.ExpiryQueue</expiry-address>
<redelivery-delay>0</redelivery-delay>
<max-size-bytes>-1</max-size-bytes>
<page-size-bytes>10485760</page-size-bytes>
<message-counter-history-day-limit>10</message-counter-history-day-limit>
</address-setting>
</address-settings>
<paging-directory>${hornetq.data.dir}/paging</paging-directory>
<bindings-directory>${hornetq.data.dir}/bindings</bindings-directory>
<journal-directory>${hornetq.data.dir}/journal</journal-directory>
<large-messages-directory>${hornetq.data.dir}/large-messages</large-messages-directory>
</configuration>
hornetq-jms.xml
<configuration xmlns="urn:hornetq"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:hornetq /schema/hornetq-jms.xsd">
<connection-factory name="NettyConnectionFactory">
<connectors>
<connector-ref connector-name="netty"/>
</connectors>
<entries>
<entry name="/ConnectionFactory"/>
<entry name="/XAConnectionFactory"/>
</entries>
</connection-factory>
<queue name="ExampleQueue">
<entry name="/queue/ExampleQueue"/>
</queue>
<topic name="ExampleTopic">
<entry name="/topic/ExampleTopic"/>
</topic>
</configuration>
hornetq-users.xml
<configuration xmlns="urn:hornetq" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:hornetq /schema/hornetq-users.xsd">
<!-- the default user. this is used where username is null-->
<defaultuser name="guest" password="guest">
<role name="guest"/>
</defaultuser>
</configuration>
Step 5) Copy jndi.properties in classpath.
java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
Step 6) Configure logger for better information capturing.
# Create a STDOUT appender log4j.appender.STDOUT=org.apache.log4j.ConsoleAppender log4j.appender.STDOUT.layout=org.apache.log4j.PatternLayout log4j.appender.STDOUT.layout.ConversionPattern=%05p | %m%n # Default everything to WARN log4j.rootCategory=WARN, STDOUT # Enable this application log level to the lowest. log4j.category.com.howtodoinjava=TRACE log4j.category.org.jnp.server=INFO log4j.category.org.hornetq=INFO log4j.category.org.springframework=INFO
Step 7) So far, hornetq server and jndi has been configured. Now, plug them in spring framework in spring.xml and spring.properties.
spring.xml
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<context:annotation-config />
<context:property-placeholder location="classpath:config/server/spring.properties" />
<bean name ="namingServerImpl" class="org.jnp.server.NamingBeanImpl" init-method="start" destroy-method="stop">
</bean>
<!-- JNDI server. Disable this if you don't want JNDI -->
<bean name="namingServer" class="org.jnp.server.Main" init-method="start" destroy-method="stop">
<property name="namingInfo" ref="namingServerImpl"></property>
<property name="port" value="1099"></property>
<property name="bindAddress" value="localhost"></property>
<property name="rmiPort" value="1098"></property>
<property name="rmiBindAddress" value="localhost"></property>
</bean>
<!-- MBean server -->
<bean name="mbeanServer" class="java.lang.management.ManagementFactory" factory-method="getPlatformMBeanServer">
</bean>
<!-- The core configuration -->
<bean name="fileConfiguration" class="org.hornetq.core.config.impl.FileConfiguration" init-method="start" destroy-method="stop">
</bean>
<!-- The security manager -->
<bean name="hornetQSecurityManagerImpl" class="org.hornetq.spi.core.security.HornetQSecurityManagerImpl">
</bean>
<!-- The core server -->
<bean name="hornetQServerImpl" class="org.hornetq.core.server.impl.HornetQServerImpl">
<constructor-arg ref="fileConfiguration" />
<constructor-arg ref="mbeanServer" />
<constructor-arg ref="hornetQSecurityManagerImpl" />
</bean>
<!-- The JMS server -->
<bean name="jmsServerManagerImpl" class="org.hornetq.jms.server.impl.JMSServerManagerImpl" init-method="start" destroy-method="stop">
<constructor-arg ref="hornetQServerImpl" />
</bean>
<bean name="connectionFactory" class="org.hornetq.jms.client.HornetQConnectionFactory" >
<constructor-arg>
<bean class="org.hornetq.api.core.TransportConfiguration">
<constructor-arg value="org.hornetq.integration.transports.netty.NettyConnectorFactory" />
<constructor-arg>
<map key-type="java.lang.String" value-type="java.lang.Object">
<entry key="port" value="5445"></entry>
</map>
</constructor-arg>
</bean>
</constructor-arg>
</bean>
<bean name="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="connectionFactory"></property>
</bean>
<bean name="messageProducerClient" class="com.howtodoinjava.hornetq.demo.MessageProducerClient">
<property name="jmsTemplate" ref="jmsTemplate"></property>
</bean>
<bean name="messageConsumerClient" class="com.howtodoinjava.hornetq.demo.MessageConsumerClient">
<property name="jmsTemplate" ref="jmsTemplate"></property>
</bean>
</beans>
spring.properties
hornetq.data.dir=${hornetq.spring.examples.home}/hornetq-data
org.hornetq.logger-delegate-factory-class-name=org.hornetq.integration.logging.Log4jLogDelegateFactory
Step 8) Lets load the spring container first. It will validate our all configurations files also.
SpringContainerLoader.java
package com.howtodoinjava.hornetq.demo;
import org.springframework.context.support.FileSystemXmlApplicationContext;
public class SpringContainerLoader
{
public static FileSystemXmlApplicationContext loadEnvironment()
{
final FileSystemXmlApplicationContext context = new FileSystemXmlApplicationContext("classpath:config/server/spring.xml");
context.registerShutdownHook();
context.start();
return context;
}
}
Step 8) Now I will write the message producer and message consumer clients.
MessageProducerClient.java
package com.howtodoinjava.hornetq.demo;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.ProducerCallback;
public class MessageProducerClient implements Runnable {
private static Log log = LogFactory.getLog(MessageProducerClient.class);
private static int counter = 1;
private JmsTemplate jmsTemplate;
public void setJmsTemplate(JmsTemplate jmsTemplate) {
this.jmsTemplate = jmsTemplate;
}
@Override
public void run() {
jmsTemplate.execute("ExampleQueue", new ProducerCallback<Object>() {
@Override
public Object doInJms(Session session, MessageProducer producer)
throws JMSException {
while (true) {
TextMessage msg = session.createTextMessage("Message number : " + counter++);
log.trace("Sending msg: " + msg);
producer.send(msg);
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
});
}
}
MessageConsumerClient.java
package com.howtodoinjava.hornetq.demo;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.Queue;
import javax.jms.Session;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.SessionCallback;
public class MessageConsumerClient implements Runnable {
private static Log log = LogFactory.getLog(MessageConsumerClient.class);
private JmsTemplate jmsTemplate;
public void setJmsTemplate(JmsTemplate jmsTemplate) {
this.jmsTemplate = jmsTemplate;
}
@Override
public void run()
{
log.info("Message Consumer is just started !!");
boolean startConn = true;
jmsTemplate.execute(new SessionCallback<Object>() {
@Override
public Object doInJms(Session session) throws JMSException {
Queue queue = session.createQueue("ExampleQueue");
MessageConsumer consumer = session.createConsumer(queue);
while (true) {
Message msg = consumer.receive();
log.trace("Received msg: " + msg);
}
}
}, startConn);
}
}
Step 9) Now its time to test the whole code and messaging functionality.
HornetQMessagingTest.java
package com.howtodoinjava.hornetq.demo;
import org.springframework.context.ApplicationContext;
public class HornetQMessagingTest
{
public static void main(String[] args) throws InterruptedException
{
//Load configurations
ApplicationContext context = SpringContainerLoader.loadEnvironment();
//Start the message producer
new Thread((Runnable)context.getBean("messageProducerClient")).start();
//Start the message consumer
new Thread((Runnable)context.getBean("messageConsumerClient")).start();
}
}
Running above test class will produce below logs to verify the spring 3 and hornetq integration was successful.
INFO | Refreshing org.springframework.context.support.FileSystemXmlApplicationContext@aa9835: startup date [Mon Mar 25 09:23:26 IST 2013]; root of context hierarchy INFO | Loading XML bean definitions from class path resource [config/server/spring.xml] INFO | Loading properties file from class path resource [config/server/spring.properties] INFO | Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@1b4fad5: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.beans.factory.config.PropertyPlaceholderConfigurer#0,namingServerImpl,namingServer,mbeanServer,fileConfiguration,hornetQSecurityManagerImpl,hornetQServerImpl,jmsServerManagerImpl,connectionFactory,jmsTemplate,messageProducerClient,messageConsumerClient]; root of factory hierarchy 25 Mar, 2013 9:23:28 AM org.hornetq.core.logging.impl.JULLogDelegate info INFO: live server is starting.. 25 Mar, 2013 9:23:28 AM org.hornetq.core.logging.impl.JULLogDelegate warn WARNING: AIO wasn't located on this platform, it will fall back to using pure Java NIO. If your platform is Linux, install LibAIO to enable the AIO journal 25 Mar, 2013 9:23:28 AM org.hornetq.core.logging.impl.JULLogDelegate info INFO: Using NIO Journal 25 Mar, 2013 9:23:28 AM org.hornetq.core.logging.impl.JULLogDelegate warn WARNING: Security risk! It has been detected that the cluster admin user and password have not been changed from the installation default. Please see the HornetQ user guide, cluster chapter, for instructions on how to do this. 25 Mar, 2013 9:23:30 AM org.hornetq.core.logging.impl.JULLogDelegate info INFO: Started Netty Acceptor version 3.1.5.GA-r1772 25 Mar, 2013 9:23:30 AM org.hornetq.core.logging.impl.JULLogDelegate info INFO: HornetQ Server version 2.0.0.GA (Hornet Queen, 113) started INFO | Message Consumer is just started !! TRACE | Sending msg: HornetQMessage[null]:PERSISTENT TRACE | Received msg: HornetQMessage[ID:8e74da0e-94ff-11e2-bbba-002564ac1704:0000000000000000]:PERSISTENT TRACE | Sending msg: HornetQMessage[null]:PERSISTENT TRACE | Received msg: HornetQMessage[ID:8e74da0e-94ff-11e2-bbba-002564ac1704:1000000000000000]:PERSISTENT TRACE | Sending msg: HornetQMessage[null]:PERSISTENT TRACE | Received msg: HornetQMessage[ID:8e74da0e-94ff-11e2-bbba-002564ac1704:2000000000000000]:PERSISTENT TRACE | Sending msg: HornetQMessage[null]:PERSISTENT TRACE | Received msg: HornetQMessage[ID:8e74da0e-94ff-11e2-bbba-002564ac1704:3000000000000000]:PERSISTENT
In case any problem, please verify following things first:
- All configurations files are in class path.
- The two jar files present in lib folder are included in class path.
For reference purpose, I am giving a snapshot of directory structure.
Happy Learning !!
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