AMQP

The amqp: component supports the AMQP 1.0 protocol using the JMS Client API of the Qpid project. In case you want to use AMQP 0.9 (in particular RabbitMQ) you might also be interested in the Camel RabbitMQ component. Please keep in mind that prior to the Camel 2.17.0 AMQP component supported AMQP 0.9 and above, however since Camel 2.17.0 it supports only AMQP 1.0.

Maven users will need to add the following dependency to their pom.xml for this component:

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-amqp</artifactId>
    <version>${camel.version}</version> <!-- use the same version as your Camel core version -->
</dependency>

URI format

amqp:[queue:|topic:]destinationName[?options]

AMQP Options

You can specify all of the various configuration options of the JMS component after the destination name.

Usage

As AMQP component is inherited from JMS component, the usage of the former is almost identical to the latter:

Using AMQP component

// Consuming from AMQP queue
from("amqp:queue:incoming").
  to(...);
 
// Sending message to the AMQP topic
from(...).
  to("amqp:topic:notify");

Configuring AMQP component

Starting from the Camel 2.16.1 you can also use the AMQPComponent#amqp10Component(String connectionURI) factory method to return the AMQP 1.0 component with the pre-configured topic prefix:

Creating AMQP 1.0 component

 AMQPComponent amqp = AMQPComponent.amqp10Component("amqp://guest:guest@localhost:5672");

Keep in mind that starting from the Camel 2.17 the AMQPComponent#amqp10Component(String connectionURI) factory method has been deprecated on the behalf of the AMQPComponent#amqpComponent(String connectionURI):

Creating AMQP 1.0 component

AMQPComponent amqp = AMQPComponent.amqpComponent("amqp://localhost:5672");
 
AMQPComponent authorizedAmqp = AMQPComponent.amqpComponent("amqp://localhost:5672", "user", "password");

Starting from Camel 2.17, in order to automatically configure the AMQP component, you can also add an instance of org.apache.camel.component.amqp.AMQPConnectionDetails to the registry. For example for Spring Boot you just have to define bean:

AMQP connection details auto-configuration

@Bean
AMQPConnectionDetails amqpConnection() {
  return new AMQPConnectionDetails("amqp://lcoalhost:5672"); 
}
 
@Bean
AMQPConnectionDetails securedAmqpConnection() {
  return new AMQPConnectionDetails("amqp://lcoalhost:5672", "username", "password"); 
}

You can also rely on the Camel properties to read the AMQP connection details. Factory method AMQPConnectionDetails.discoverAMQP() attempts to read Camel properties in a Kubernetes-like convention, just as demonstrated on the snippet below:

AMQP connection details auto-configuration

export AMQP_SERVICE_HOST = "mybroker.com"
export AMQP_SERVICE_PORT = "6666"
export AMQP_SERVICE_USERNAME = "username"
export AMQP_SERVICE_PASSWORD = "password"
 
...
 
@Bean
AMQPConnectionDetails amqpConnection() {
  return AMQPConnectionDetails.discoverAMQP(); 
}

Configuring Connection Factory

Like with any other JMS-based component, usually it's important to configure JMS connection factory. For example, you'd like to set your broker url or set proper connection credentials. Additionally, you

     <bean id="jmsConnectionFactory" class="org.apache.qpid.jms.JmsConnectionFactory">
        <property name="remoteURI" value="amqp://localhost:5672" />
        <property name="username" value="admin"/>
        <property name="password" value="admin"/>
    </bean>

	<bean id="jmsCachingConnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
    	<property name="targetConnectionFactory" ref="jmsConnectionFactory" />
	</bean>

	<bean id="jmsConfig" class="org.apache.camel.component.jms.JmsConfiguration" >
  		<property name="connectionFactory" ref="jmsCachingConnectionFactory" /> 
  		<property name="cacheLevelName" value="CACHE_CONSUMER" />
 	</bean>	

	<bean id="amqp" class="org.apache.camel.component.amqp.AMQPComponent">
		<property name="configuration" ref="jmsConfig" />
	</bean>	

    <camelContext id="simple">
        <route>
            <from uri="timer:simple?period=5000"/>
            <setBody>
                <simple>Hello World</simple>
            </setBody>
            <to uri="amqp:test"/>
        </route>
    </camelContext>

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