THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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RabbitMQ
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Component
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Available
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as
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of
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Camel
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2.12
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The
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rabbitmq:
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component
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allows
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you
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produce
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and
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consume
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messages
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from
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instances.
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Using
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the
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RabbitMQ
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AMQP
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client,
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this
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component
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offers
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a
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pure
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RabbitMQ
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approach
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over
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the
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generic
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component.
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Maven
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users
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will
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need
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to
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add
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the
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following
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dependency
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to
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their
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pom.xml
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for
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this
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component:
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{code:xml} <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> {code} h3. URI format {code |
URI format
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} rabbitmq://hostname[:port]/exchangeName?[options] {code} 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 |
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).
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The
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exchange
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name
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determines
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which
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exchange
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produced
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messages
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will
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sent
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to.
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In
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the
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case
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of
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consumers,
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the
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exchange
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name
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determines
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which
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exchange
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the
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queue
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will
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bind
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to.
Options
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h3. Options {div:class=confluenceTableSmall} || 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 of rabbitmq.EXCHANGE_NAME | {div} h3. Headers The following headers are set on exchanges when consuming messages. |
Headers
The following headers are set on exchanges when consuming messages.
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{div:class=confluenceTableSmall}
|| 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 |
{div}
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The
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following
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headers
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are
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used
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by
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the
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producer.
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If
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these
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are
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set
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on
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the
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camel
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exchange
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then
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they
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will
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be
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set
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on
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the
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RabbitMQ
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message.
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{div:class=confluenceTableSmall} || 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 | {div} |
Headers
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are
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set
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by
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the
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consumer
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once
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the
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message
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is
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received.
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The
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producer
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will
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also
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set
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the
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headers
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for
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downstream
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processors
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once
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the
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exchange
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has
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taken
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place.
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Any
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headers
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set
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prior
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to
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production
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that
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the
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producer
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sets
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will
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be
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overriden.
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Message
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Body
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The
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component
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will
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use
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the
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camel
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exchange
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in
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body
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as
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the
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rabbit
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mq
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message
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body.
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The
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camel
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exchange
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in
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object
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must
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be
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convertible
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to
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a
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byte
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array.
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Otherwise
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the
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producer
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will
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throw
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an
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exception
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of
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unsupported
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body
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type.
Samples
To receive messages from a queue that is bound to an exchange A with the routing key B,
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h3. Samples To receive messages from a queue that is bound to an exchange A with the routing key B, {code} from("rabbitmq://localhost/A?routingKey=B") {code} |
To
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receive
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messages
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from
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a
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queue
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with
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a
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single
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thread
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with
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auto
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acknowledge
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disabled.
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} from("rabbitmq://localhost/A?routingKey=B&threadPoolSize=1&autoAck=false") {code} |
To
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send
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messages
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to
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an
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exchange
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called
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C
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} ...to("rabbitmq://localhost/B") {code} {include:Endpoint See Also} |
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