Chapter 21. Using the qpid-jms AMQP 1.0 client

21.1. QPID AMQP 1.0 JMS Client Configuration

This chapter details various configuration options for the qpid-jms client, such as how to configure and create a JNDI InitialContext, the syntax for its related configuration, and various URI options that can be set when defining a ConnectionFactory.
Applications use a JNDI InitialContext, itself obtained from an InitialContextFactory, to look up JMS objects such as ConnectionFactory. The Qpid JMS client provides an implementation of the InitialContextFactory in class org.apache.qpid.jms.jndi.JmsInitialContextFactory. This may be configured and used in three main ways:

Via jndi.properties file on the Java Classpath.
By including a file named jndi.properties on the Classpath and setting the java.naming.factory.initial property to value org.apache.qpid.jms.jndi.JmsInitialContextFactory, the Qpid InitialContextFactory implementation will be discovered when instantiating InitialContext object. 
javax.naming.Context ctx = new javax.naming.InitialContext();
The particular ConnectionFactory, Queue and Topic objects you wish the context to contain are configured using properties (the syntax for which is detailed below) either directly within the jndi.properties file, or in a separate file which is referenced in jndi.properties using the java.naming.provider.url property.
Via system properties.
By setting the java.naming.factory.initial system property to value org.apache.qpid.jms.jndi.JmsInitialContextFactory, the Qpid InitialContextFactory implementation will be discovered when instantiating InitialContext object. 
javax.naming.Context ctx = new javax.naming.InitialContext();
The particular ConnectionFactory, Queue and Topic objects you wish the context to contain are configured as properties in a file, which is passed using the java.naming.provider.url system property. The syntax for these properties is detailed below.
Programmatically using an environment Hashtable.
The InitialContext may also be configured directly by passing an environment during creation: 
Hashtable<Object, Object> env = new Hashtable<Object, Object>();
env.put(Context.INITIAL_CONTEXT_FACTORY, "org.apache.qpid.jms.jndi.JmsInitialContextFactory");
javax.naming.Context context = new javax.naming.InitialContext(env);
The particular ConnectionFactory, Queue and Topic objects you wish the context to contain are configured as properties (the syntax for which is detailed below), either directly within the environment Hashtable, or in a separate file which is referenced using the java.naming.provider.url property within the environment Hashtable.
The property syntax used in the properties file or environment Hashtable is as follows:

Table 21.1. Property syntax

Property Syntax
ConnectionFactory connectionfactory.lookupName = URI
Queue queue.lookupName = queueName
Topic topic.lookupName = topicName
As an example, consider the following properties used to define a ConnectionFactory, Queue, and Topic: 
connectionfactory.myFactoryLookup = amqp://localhost:5672
queue.myQueueLookup = queueA
topic.myTopicLookup = topicA
These objects could then be looked up from a Context as follows: 
ConnectionFactory factory = (ConnectionFactory) context.lookup("myFactoryLookup");
Queue queue = (Queue) context.lookup("myQueueLookup");
Topic topic = (Topic) context.lookup("myTopicLookup");
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