Qpid JMS event publisher is used to publish events in map, XML, JSON, and text formats via JMS transport.
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Install Qpid JMS Broker and Qpid JMS Client.
- Configure WSO2 CEP by adding relevant jars to support JMS transport.
Register a connection factory in the
<PRODUCT_HOME>/repository/conf/jndi.properties. For example, if the connection factory JNDI name isTopicConnectionFactory, it will point the default Qpid host to localhost and port to 5672 as shown below. Furthermore, add the topics to be sent to the Qpid broker in the format: topic.{topicName} = {topicName}Code Block language text connectionfactory.TopicConnectionFactory=amqp://admin:admin@clientid/default?brokerlist='tcp://localhost:5672' topic.topicMap = topicMap topic.topicJSON = topicJSON
Start Qpid Broker, and then start the product.
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For instructions on creating a Qpid JMS event publisher, see Publishing Events . see Configuring CEP to Create Alerts.
Configuring adapter properties
Specify the Static and Dynamic Adapter Properties, when creating a Qpid JMS event publisher using the management console as shown below.
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After entering the above adapter properties, select the select the Message Format which that you want to apply on to the published events . Also, click Advanced to define custom output mappings based on the Message Format you selected. For more information on custom output mapping types, see Publishing Events in Various Event Formatssee Output Mapping Types. |
You can also define the respective adapter properties of the event publisher based on the transport type within the <to> element of the event publisher configuration in the <PRODUCT_HOME>/repository/deployment/server/eventpublishers/ directory as follows.
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Adapter Property | Description | Configuration file property | Example |
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| JNDI Initial Context Factory Class | The JNDI initial context factory class. The class must implement the java.naming.spi.InitialContextFactory interface | java.naming.factory.initial | org.apache.qpid.jndi.PropertiesFileInitialContextFactory |
| JNDI Provider URL | URL of the JNDI provider | java.naming.provider.url | repository/conf/jndi.properties |
| Username | Valid username for the JMS connection | transport.jms.UserName | jms-user |
| Password | Valid password for the JMS connection | transport.jms.Password | jms-password |
| Connection Factory JNDI Name | The JNDI name of the connection factory | transport.jms.ConnectionFactoryJNDIName | TopicConnectionFactory |
| Destination Type | The sort order for messages that arrive on a specific destination | transport.jms.DestinationType | topic/queue |
| Destination | The topic or queue to which WSO2 CEP/DAS sends messages by publishing. | transport.jms.Destination | test_topic |
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| Adapter Property | Description | Configuration file property | Example |
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| Header | Define transport headers as a valid header name in a header value pair format | transport.jms.Header | header_name1:header_value1,header_name2:header_value2 |
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