org.apache.beam.sdk.io.rabbitmq

Class RabbitMqIO

java.lang.Object

org.apache.beam.sdk.io.rabbitmq.RabbitMqIO

@Experimental(value=SOURCE_SINK)
public class RabbitMqIO
extends java.lang.Object

A IO to publish or consume messages with a RabbitMQ broker.

Consuming messages from RabbitMQ server

RabbitMqIO RabbitMqIO.Read returns an unbounded PCollection containing RabbitMQ messages body (as byte[]) wrapped as RabbitMqMessage.

To configure a RabbitMQ source, you have to provide a RabbitMQ URI to connect to a RabbitMQ broker. The following example illustrates various options for configuring the source, reading from the queue:

 PCollection<RabbitMqMessage> messages = pipeline.apply(
   RabbitMqIO.read().withUri("amqp://user:password@localhost:5672").withQueue("QUEUE"))

 

It's also possible to read from an exchange (providing the exchange type and routing key) instead of directly from a queue:

 PCollection<RabbitMqMessage> messages = pipeline.apply(
   RabbitMqIO.read().withUri("amqp://user:password@localhost:5672").withExchange("EXCHANGE", "fanout", "QUEUE"));
 

Publishing messages to RabbitMQ server

RabbitMqIO RabbitMqIO.Write can send RabbitMqMessage to a RabbitMQ server queue or exchange.

As for the RabbitMqIO.Read, the RabbitMqIO.Write is configured with a RabbitMQ URI.

For instance, you can write to an exchange (providing the exchange type):

 pipeline
   .apply(...) // provide PCollection<RabbitMqMessage>
   .apply(RabbitMqIO.write().withUri("amqp://user:password@localhost:5672").withExchange("EXCHANGE", "fanout"));
 

For instance, you can write to a queue:

 pipeline
   .apply(...) // provide PCollection<RabbitMqMessage>
   .apply(RabbitMqIO.write().withUri("amqp://user:password@localhost:5672").withQueue("QUEUE"));

 

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RabbitMqIO.Read A PTransform to consume messages from RabbitMQ server.
static class	RabbitMqIO.Write A PTransform to publish messages to a RabbitMQ server.

Method Summary

Modifier and Type	Method and Description
static RabbitMqIO.Read	read()
static RabbitMqIO.Write	write()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

read

public static RabbitMqIO.Read read()

write

public static RabbitMqIO.Write write()