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The User can create Hierarchical Topics with the help of AdminAPIs. The code snippet below demonstrates the process of the creation of topics in Hierarchical name spacesnamespaces.
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To create a Topic, it is necessary that the parent to the topic exists
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To create a Topic, it is necessary that the parent to the topic exists:
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public void testHierarchicalTopics ()
{
// create the initial context and connect to FioranoMQ 9
Hashtable env = new Hashtable ();
env.put (Context.SECURITY_PRINCIPAL, "anonymous");
env.put (Context.SECURITY_CREDENTIALS, "anonymous");
env.put (Context.PROVIDER_URL, "http://localhost:1856");
env.put Context.INITIAL_CONTEXT_FACTORY,"fiorano.jms.runtime.naming.FioranoInitialContextFactory");
InitialContext ic = new InitialContext (env);
System.out.println ("Created InitialContext:: " + ic);
MQAdminConnectionFactory acf =
(MQAdminConnectionFactory) ic.lookup ("primaryACF");
MQAdminConnection ac = acf.createMQAdminConnection ("admin", "passwd");
System.out.println ("Created Admin Connection...");
MQAdminService adminService = ac.getMQAdminService ();
System.out.println ("Received handle to Admin services:: " + adminService);
// Create a topic named primaryTopic.subTopic1
String topicName = "primarytopic.subtopic1";
TopicMetaData tMetaData = new TopicMetaData();
tMetaData.setName (topicName);
adminService.createTopic (tMetaData);
Topic topic = (Topic) ic.lookup (topicName);
System.out.println ("Looked up the Hierarchical Topic ", topic.getName());
//create a topic named primarytopic.subtopic2
String topicName = "primarytopic.subtopic2";
TopicMetaData tMetaData = new TopicMetaData ();
tMetaData.setName (topicName);
adminService.createTopic (tMetaData);
topic = (Topic) ic.lookup (topicName);
System.out.println ("Looked up the Hierarchical Topic ", topic.getName());
} |
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- Launch Fiorano Studio and connect Studio to the FioranoMQ Server.
- To create a topic, navigate to the Topics sub-node under the Destinations node of the tree
- Right-click on the Topics node and select Add Topic
The below window below is gets displayed:.
4. Enter the Destination parameter and other relevant parameters necessary for the creation of the topic. In this example, the Topic name is ABC.1
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For the creation of topicName ABC.1, a parent topic should exist. In the absence of ABC, the following error is displayed on the console: |
5. In the same manner, the user can create the topics hierarchy
Once After a hierarchy is created, all the topics are displayed in the Topic List.
