RabbitMQ

RabbitMQ Component

Available as of Camel 2.12

The rabbitmq: component allows you produce and consume messages from RabbitMQ instances. Using the RabbitMQ AMQP client, this component offers a pure RabbitMQ approach over the generic AMQP component.

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

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-rabbitmq</artifactId>
    <version>x.x.x</version>
    <!-- use the same version as your Camel core version -->
</dependency>

URI format

rabbitmq://hostname[:port]/exchangeName?[options]

Where hostname is the hostname of the running rabbitmq instance or cluster. Port is optional and if not specified then defaults to the RabbitMQ client default (5672). The exchange name determines which exchange produced messages will sent to. In the case of consumers, the exchange name determines which exchange the queue will bind to.

Options

Unknown macro: {div}

Property	Default	Description
`autoAck`	`true`	If messages should be auto acknowledged
`autoDelete`	`true`	If it is true, the exchange will be deleted when it is no longer in use
`durable`	`true`	If we are declaring a durable exchange (the exchange will survive a server restart)
`queue`	`random uuid`	The queue to receive messages from
`routingKey`	`null`	The routing key to use when binding a consumer queue to the exchange. For producer routing keys, you set the header (see header section)
`threadPoolSize`	`10`	The consumer uses a Thread Pool Executor with a fixed number of threads. This setting allows you to set that number of threads.
`username`	`null`	username in case of authenticated access
`password`	`null`	password for authenticated access
`vhost`	`/`	the vhost for the channel
`exchangeType`	`direct`	Camel 2.12.2: The exchange type such as direct or topic.
`bridgeEndpoint`	`false`	Camel 2.12.3: If the bridgeEndpoint is true, the producer will ignore the message header of "rabbitmq.EXCHANGE_NAME" and "rabbitmq.ROUTING_KEY"
`addresses`	`null`	Camel 2.12.3: If this option is set, camel-rabbitmq will try to create connection based on the setting of option addresses. The addresses value is a string which looks like "server1:12345, server2:12345"
connectionTimeout	0	Camel 2.14: Connection timeout
requestedChannelMax	0	Camel 2.14: Connection requested channel max (max number of channels offered)
requestedFrameMax	0	Camel 2.14: Connection requested frame max (max size of frame offered)
requestedHeartbeat	0	Camel 2.14: Connection requested heartbeat (heart-beat in seconds offered)
sslProtocol	null	Camel 2.14: Enables SSL on connection, accepted value are `true`, `TLS` and 'SSLv3`
trustManager	null	Camel 2.14: Configure SSL trust manager, SSL should be enabled for this option to be effective
clientProperties	null	Camel 2.14: Connection client properties (client info used in negotiating with the server)
connectionFactory	null	Camel 2.14: Custom RabbitMQ connection factory. When this option is set, all connection options (connectionTimeout, requestedChannelMax...) set on URI are not used
automaticRecoveryEnabled	false	Camel 2.14: Enables connection automatic recovery (uses connection implementation that performs automatic recovery when connection shutdown is not initiated by the application)
networkRecoveryInterval	5000	Camel 2.14: Network recoverty interval in milliseconds (interval used when recovering from network failure)
topologyRecoveryEnabled	true	Camel 2.14: Enables connection topology recovery (should topology recovery be performed?)

See http://www.rabbitmq.com/releases/rabbitmq-java-client/current-javadoc/com/rabbitmq/client/ConnectionFactory.html and the AMQP specification for more information on connection options.

Custom connection factory

<bean id="customConnectionFactory" class="com.rabbitmq.client.ConnectionFactory">
<property name="host" value="localhost"/>
<property name="port" value="5672"/>
<property name="username" value="camel"/>
<property name="password" value="bugsbunny"/>
</bean>
<camelContext>
<route>
<from uri="direct:rabbitMQEx2"/>
<to uri="rabbitmq://localhost:5672/ex2?connectionFactory=#customConnectionFactory"/>
</route>
</camelContext>

Headers

The following headers are set on exchanges when consuming messages.

Unknown macro: {div}

Property	Value
`rabbitmq.ROUTING_KEY`	The routing key that was used to receive the message, or the routing key that will be used when producing a message
`rabbitmq.EXCHANGE_NAME`	The exchange the message was received from
`rabbitmq.DELIVERY_TAG`	The rabbitmq delivery tag of the received message

The following headers are used by the producer. If these are set on the camel exchange then they will be set on the RabbitMQ message.

Unknown macro: {div}

Property	Value
`rabbitmq.ROUTING_KEY`	The routing key that will be used when sending the message
`rabbitmq.EXCHANGE_NAME`	The exchange the message was received from, or sent to
`rabbitmq.CONTENT_TYPE`	The contentType to set on the RabbitMQ message
`rabbitmq.PRIORITY`	The priority header to set on the RabbitMQ message
`rabbitmq.CORRELATIONID`	The correlationId to set on the RabbitMQ message
`rabbitmq.MESSAGE_ID`	The message id to set on the RabbitMQ message
`rabbitmq.DELIVERY_MODE`	If the message should be persistent or not
`rabbitmq.USERID`	The userId to set on the RabbitMQ message
`rabbitmq.CLUSTERID`	The clusterId to set on the RabbitMQ message
`rabbitmq.REPLY_TO`	The replyTo to set on the RabbitMQ message
`rabbitmq.CONTENT_ENCODING`	The contentEncoding to set on the RabbitMQ message
`rabbitmq.TYPE`	The type to set on the RabbitMQ message
`rabbitmq.EXPIRATION`	The expiration to set on the RabbitMQ message
`rabbitmq.TIMESTAMP`	The timestamp to set on the RabbitMQ message
`rabbitmq.APP_ID`	The appId to set on the RabbitMQ message

Headers are set by the consumer once the message is received. The producer will also set the headers for downstream processors once the exchange has taken place. Any headers set prior to production that the producer sets will be overriden.

Message Body

The component will use the camel exchange in body as the rabbit mq message body. The camel exchange in object must be convertible to a byte array. Otherwise the producer will throw an exception of unsupported body type.

Samples

To receive messages from a queue that is bound to an exchange A with the routing key B,

from("rabbitmq://localhost/A?routingKey=B")

To receive messages from a queue with a single thread with auto acknowledge disabled.

from("rabbitmq://localhost/A?routingKey=B&threadPoolSize=1&autoAck=false")

To send messages to an exchange called C

...to("rabbitmq://localhost/B")

Child pages

RabbitMQ Component

URI format

Options

Custom connection factory

Message Body

Samples

See Also