Fusibile JBoss - AMQ con cammello

In questo capitolo impareremo le basi di come ActiveMQ funziona con Camel.

Configurazione in ActiveMQ Component

Prima di poter utilizzare la coda o l'argomento ActiveMQ nel nostro codice, dobbiamo configurare ActiveMQComponent. La configurazione minima di ActiveMQComponent può essere eseguita come mostrato nel seguente programma:

<bean id = "activemq" class = "org.apache.activemq.camel.component.ActiveMQComponent">
   <property name = "brokerURL" value = "tcp://localhost:61616"/>
   <property name = "userName" value = "admin"/>
   <property name = "password" value = "admin"/>
</bean>
  • brokerURL - Specifica l'host e la porta per AMQ Broker.

  • username - Specifica il nome utente da utilizzare per la connessione a AMQ Broker.

  • password - specifica la password per la connessione a AMQ Broker.

Connessione alla coda

Ora che abbiamo configurato ActiveMQComponent, possiamo usarlo nel nostro CamelContext come endpoint.

Useremo l'endpoint AMQ nel seguente formato:

Activemq:[queue|topic]:[queueName|topicName]

Scrittura di messaggi ad AMQ

<?xml version = "1.0" encoding="UTF-8"?>
<!-- Configures the Camel Context-->
<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.xsd
   http://camel.apache.org/schema/spring
   http://camel.apache.org/schema/spring/camel-spring.xsd">

Dopo aver distribuito questo bundle nel contenitore Fuse, dovresti essere in grado di vedere i messaggi pubblicati su AMQ che sono stati inseriti come file in D:/src/data.

Input

D: /src/data/input.txt

Test me

Output

Lettura da AMQ

<?xml version = "1.0" encoding = "UTF-8"?>
<!-- Configures the Camel Context-->

<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.xsd
   http://camel.apache.org/schema/spring
   http://camel.apache.org/schema/spring/camel-spring.xsd">
	
   <camelContext xmlns = "http://camel.apache.org/schema/spring">
      <!-- here is a sample which processes the input files
         (leaving them in place - see the 'noop' flag)
          then performs content based routing on the message using XPath -->
			 
      <route>
         <from uri = "activemq:queue:TestQ"/>
         <to uri = "file:///d:/src"/>
      </route>
   </camelContext>
	
   <bean id = "activemq" class = "org.apache.activemq.camel.component.ActiveMQComponent">
      <property name = "brokerURL" value = "tcp://localhost:61616"/>
      <property name = "userName" value = "admin"/>
      <property name = "password" value = "admin"/>
   </bean>
	
</beans>

Input

Dopo aver distribuito questo pacchetto, dovresti vedere un file generato in D: / src e i messaggi vengono consumati. Anche il consumatore dovrebbe essere mostrato per quella coda.

Output

D: / src

Test me

Scrivendo all'argomento

<?xml version = "1.0" encoding = "UTF-8"?>
<!-- Configures the Camel Context-->
<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.xsd
   http://camel.apache.org/schema/spring 
   http://camel.apache.org/schema/spring/camel-spring.xsd">
	
   <camelContext xmlns = "http://camel.apache.org/schema/spring">
      <!-- here is a sample which processes the input files
         (leaving them in place - see the 'noop' flag)
          then performs content based routing on the message using XPath -->
			 
      <route>
         <from uri = "file:///d:/src"/>
         <to uri = "activemq:topic:TestTopic” />
      </route>
   </camelContext>
	
   <bean id = "activemq" class = "org.apache.activemq.camel.component.ActiveMQComponent">
      <property name = "brokerURL" value = "tcp://localhost:61616"/>
      <property name = "userName" value = "admin"/>
      <property name = "password" value = "admin"/>
   </bean>
	
</beans>

Lettura dall'argomento

<?xml version = "1.0" encoding = "UTF-8"?>
<!-- Configures the Camel Context-->
<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.xsd
   http://camel.apache.org/schema/spring 
   http://camel.apache.org/schema/spring/camel-spring.xsd">
	
   <camelContext xmlns = "http://camel.apache.org/schema/spring">
      <!-- here is a sample which processes the input files
         (leaving them in place - see the 'noop' flag)
         then performs content based routing on the message using XPath -->
			
      <route>
         <from uri = "activemq:topic:TestTopic"/>
         <to uri = "file:///d:/src2"/>
      </route>
   </camelContext>
	
   <bean id = "activemq" class = "org.apache.activemq.camel.component.ActiveMQComponent">
      <property name = "brokerURL" value="tcp://localhost:61616"/>
      <property name = "userName" value = "admin"/>
      <property name = "password" value = "admin"/>
   </bean>
	
</beans>

Input

D: /src/file1.xml

<order>
   <data>
      <value>value1</value>
   </data>
</order>

<order>
   <data>
      <value>value2</value>
   </data>
</order>

<order>
   <data>
      <value>value3</value>
   </data>
</order>

Output

D: / src /

<order>
   <data>
      <value>value1</value>
   </data>
</order>

<order>
   <data>
      <value>value2</value>
   </data>
</order>

<order>
   <data>
      <value>value3</value>
   </data>
</order>