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The WSDL extensions for defining a JMS endpoint are defined in the namespace http://cxf.apache.org/transports/jms. In order to use the JMS extensions you will need to add the line namespace definition shown below to the definitions element of your contract.

Code Block
titleJMS Extension Namespace
xmlns:jms="http://cxf.apache.org/transports/jms"

Configuration Namespaces

The CXF JMS endpoint configuration properties are specified under the http://cxf.apache.org/transports/jmscontainsImage Removed namespace. In order to use the JMS configuration properties you will need to add the lines shown below to the beans element of your configuration.

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JMS endpoints need to know certain basic information about how to establish a connection to the proper destination. This information can be provided in one of two places:

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WSDL or XML configuration. The following configuration elements which are described can be used in both the client side Conduits and the server side Destinations.

Using WSDL

The JMS destination information is provided using the jms:address element and its child, the jms:JMSNamingProperties element. The jms:address element's attributes specify the information needed to identify the JMS broker and the destination. The jms:JMSNamingProperties element specifies the Java properties used to connect to the JNDI service.

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In addition to using the WSDL file to specify the connection information for a JMS endpoint, you can also supply it in the endpoint's XML configuration file. The information in the configuration file will override the information in the endpoint's WSDL file.

Configuration beans

You use the org.apache.cxf.transport.jms.base.JMSTransportBaseConfigBean bean class to specify the address for a JMS endpoint. The value if the configuration bean's id attribute determines if you are configuring a consumer endpoint or a service endpoint. The id values will take one of the following forms:

  • {WSDLNamespace}WSDLPortName.jms-conduit-base specifies that a consumer endpoint is being configured
  • {WSDLNamespace}WSDLPortName.jms-destination-base specifies that a service endpoint is being configured

The addressPolicy property

JMS connection information is specified using the addressPolicy property. The addressPolicy property has a single value: jms:address. It is identical to the jms:address element used in the WSDL file.
Like the jms:address element in the WSDL file, the jms:address configuration element also has a jms:JMSNamingProperties child element that is used to specify additional information used to connect to a JNDI provider.
The addressPolicy property can be specified in either the client base configuration bean or the service base configuration bean.
The following example shows a CXF configuration entry for configuring the addressing information for a JMS consumer endpoint.

The addressPolicy property

JMS connection information is specified using the addressPolicy property. The addressPolicy property has a single value: jms:address. It is identical to the jms:address element used in the WSDL file. Like the jms:address element in the WSDL file, the jms:address configuration element also has a jms:JMSNamingProperties child element that is used to specify additional information used to connect to a JNDI provider. The following example shows a CXF configuration entry for configuring the addressing information for a JMS consumer endpoint.

Code Block
titleAddressing Information a Configuration File

<beans xmlns="http://www.springframework.org/schema/beans
Code Block
titleAddressing Information a Configuration File

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:ctxsi="http://cxfwww.apachew3.org/configuration2001/typesXMLSchema-instance"
       xmlns:jmsct="http://cxf.apache.org/transportsconfiguration/jmstypes"
       xmlns:jms-conf="http://cxf.apache.org/transports/jms/jms-conf"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean<jms:conduit id="{http://cxf.apache.org/jms_endpt}HelloWorldJMSPort.jms-conduit-base"
      class="org.apache.cxf.transport.jms.base.JMSTransportBaseConfigBean">
  <property name="addressPolicy"-conduit">
    <value>
      <jms:address destinationStyle="queue"
                   jndiConnectionFactoryName="myConnectionFactory"
                   jndiDestinationName="myDestination"
                   jndiReplyDestinationName="myReplyDestination"
                   connectionUserName="testUser"
                   connectionPassword="testPassword">
        <jms:JMSNamingProperty name="java.naming.factory.initial"
                               value="org.apache.cxf.transport.jms.MyInitialContextFactory"/>
        <jms:JMSNamingProperty name="java.naming.provider.url"
                               value="tcp://localhost:61616"/>
      </jms:address>
    </value>
  </property>
</bean>jms:conduit>
</beans>

The jms:address may also be used inside a jms:destination as well (see below).

Consumer Endpoint Configuration

JMS consumer endpoints specify the type of messages they use. JMS consumer endpoint can use either a JMS ObjectMessage or a JMS TextMessage. When using an ObjectMessage the consumer endpoint uses a byte[] as the method for storing data into and retrieving data from the JMS message body. When messages are sent, the message data, including any formating information, is packaged into a byte[]
and placed into the JMS message body before it is placed on the wire. When messages are received, the consumer endpoint will attempt to unmarshall the data stored in the JMS body as if it were packed in a byte[].

When using a TextMessage, the consumer endpoint uses a string as the method for storing and retrieving data from the JMS message body. When messages are sent, the message information, including any format-specific information, is converted into a string and placed into the JMS message body. When messages are received the consumer endpoint will attempt to unmashall the data stored in the JMS message body as if it were packed into a string.

When native JMS applications interact with CXF consumers, the JMS application is responsible for interpreting the message and the formatting information. For example, if the CXF contract specifies that the binding used for a JMS endpoint is SOAP, and the messages are packaged as TextMessage, the receiving JMS application will get a text message containing all of the SOAP envelope information.

Consumer endpoint can be configured in one of two ways:

  • Configuration
  • WSDL

Using Configuration

Specifying the message type

be configured by both XML configuration and via WSDL.

Using Configuration

Specifying the message type

You can Consumer endpoint configuration is specified using org.apache.cxf.transport.jms.conduit.JMSConduitConfigBean as the class for the configuration bean. Using this configuration bean, you specify the message type supported by the consumer endpoint using the client property. It has a single value, jms:client, element that has a single attribute:

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Code Block
titleConfiguration for a JMS Consumer Endpoint
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance/beans"
       xmlns:ctxsi="http://cxfwww.apachew3.org/configuration2001/typesXMLSchema-instance"
       xmlns:jmsct="http://cxf.apache.org/transportsconfiguration/jmstypes"
       xmlns:jms-conf="http://cxf.apache.org/transports/jms/jms-conf"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
...
<bean<jms:conduit id="{http://cxf.apache.org/jms_endpt}HelloWorldJMSPort.jms-conduit"
      class="org.apache.cxf.transport.jms.conduit.JMSConduitConfigBean">
  <property name="client"conduit">
    <value>
      <jms:client messageType="binary"/>
    </value>
  </property>
...
</bean>
...
</beans>

Specifying address information

jms:conduit>
...
</beans>

The id on the jms:conduit is The addressing information for a JMS consumer endpoint is set using a configuration bean with a class of org.apache.cxf.transort.jms.base.JMSTransportBaseConfigBean and an id in the form of {WSDLNamespace}WSDLPortName.jms-conduit-base. This provides CXF with the information so that it can associate the configuration with your service's endpoint.

Using WSDL

The type of messages accepted by a JMS consumer endpoint is configured using the optional jms:client element. The jms:client element is a child of the WSDL port element and has one attribute:

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Service endpoints can be configure in one of two ways:

  • Configuration
  • WSDL

Using Configuration

Specifying configuration data

Using Configuration

Specifying configuration data

Using the jms:destination element you can configure your service's endpoint to use JMS. You can Service endpoints are configured using the org.apache.cxf.transport.jms.destination.JMSDestinationConfigBean} class for the configuration bean. Using this configuration bean class, you can specify the service endpoint's behaviors using the {{server property. It has a single element, jms:server, that has a the following attributes:

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Code Block
titleConfiguration for a JMS Service Endpoint
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:ct="http://cxfwww.apachew3.org/configuration2001/typesXMLSchema-instance"
       xmlns:jmsct="http://cxf.apache.org/transportsconfiguration/jmstypes"
       xmlns:jms-conf="http://cxf.apache.org/transports/jms/jms-conf"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
...
<bean<jms:destination id="{http://cxf.apache.org/jms_endpt}HelloWorldJMSPort.jms-destination"
      class="org.apache.cxf.transport.jms.destination.JMSDestinationConfigBean">
  <property name="server">
    <value>>
      <jms:server messageSelector="cxf_message_selector"
                  useMessageIDAsCorrelationID="true"
                  transactional="true"
                  durableSubscriberName="cxf_subscriber" />
    </value>
  </property>
</bean>
...
</beans>

Adding address information

The addressing information for a JMS service endpoint is set using a configuration bean with a class of org.apache.cxf.transort.jms.base.JMSTransportBaseConfigBean and an id in the form of {WSDLNamespace}WSDLPortName.jms-destination-base. jms:address described above can also be embedded in the jms:destination:

Code Block
titleConfiguration for a JMS Service Endpoint

<jms:destination id="{http://cxf.apache.org/jms_endpt}HelloWorldJMSPort.jms-destination">
  <jms:address .../>
  <jms:server .../>
</bean>

Using WSDL

Service endpoint behaviors are configured using the optional jms:server element. The jms:server element is a child of the WSDL port element and has the following attributes:of the WSDL port element and has the following attributes:

Attribute

Description

useMessageIDAsCorrealationID

Specifies whether JMS will use the message ID to correlate messages

Attribute

Description

useMessageIDAsCorrealationID

Specifies whether JMS will use the message ID to correlate messages. The default is false.

durableSubscriberName

Specifies the name used to register a durable subscription.

messageSelector

Specifies the string value of a message selector to use. For more information on the syntax used to specify message
selectors, see the JMS 1.1 specification.

transactional

Specifies whether the local JMS broker will create transactions around message processing. The default is false. Currently, this is not supported by the runtime.

JMS Runtime Configuration

In addition to configuring the externally visible aspects of your JMS endpoint, you can also configure aspects of its internal runtime behavior. There are three types of runtime configuration:

  • Base configuration
  • Consumer specific configuration
  • Service specific configuration

Base Runtime Configuration

The JMS base configuration allows you to specify the number of JMS sessions an endpoint will keep in a pool. This property is specified using the same configuration bean as the endpoint's address configuration.

Configuration bean

You use the org.apache.cxf.transport.jms.base.JMSTransportBaseConfigBean bean class to specify the session pool configuration for a JMS endpoint. The value if the configuration bean's id attribute determines if you are configuring a consumer endpoint or a service endpoint. The id values will take one of the following forms:

  • {WSDLNamespace}WSDLPortName.jms-conduit-base specifies that a consumer endpoint is being configured.
  • {WSDLNamespace}WSDLPortName.jms-destination-base specifies that a service endpoint is being configured.

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durableSubscriberName

Specifies the name used to register a durable subscription.

messageSelector

Specifies the string value of a message selector to use. For more information on the syntax used to specify message
selectors, see the JMS 1.1 specification.

transactional

Specifies whether the local JMS broker will create transactions around message processing. The default is false. Currently, this is not supported by the runtime.

JMS Runtime Configuration

In addition to configuring the externally visible aspects of your JMS endpoint, you can also configure aspects of its internal runtime behavior. There are three types of runtime configuration:

  • Session pool configuration (common to both services and consumers)
  • Consumer specific configuration
  • Service specific configuration

Session Pool Configuration

You configure an endpoint's JMS session pool using the sessionPoolConfig property. This property allows you to set a high and low water mark for the number of JMS sessions an endpoint will keep pooled. The endpoint is guaranteed to maintain a pool of sessions equal to the low water mark and to never pool more sessions than specified by the high water mark.
The sessionPoolConfig sessionPool property takes a single jms-conf:sessionPoolConfigsessionPool element. The jms-conf:sessionPoolConfigsessionPool element's attributes, listed below, specify the high and low water marks for the endpoint's JMS session pool.

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Code Block
titleJMS Session Pool Configuration
<bean<jms:destination id="{http://cxf.apache.org/jms_endpit}HelloWorldJMSPort.jms-destination-base"
      class="org.apache.cxf.transport.jms.base.JMSTransportBaseConfigBean">
...
  <property name="sessionPoolConfig">
    <value>
      <jms-conf:sessionPoolConfigsessionPool lowWaterMark="10"
                                  highWaterMark="5000" />
    </value>
  </property>
</bean>
jms:destination>

The jms:sessionPool element can also be used within a jms:conduit.

Consumer Specific Runtime Configuration

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  • the number of milliseconds the consumer will wait for a response.
  • the number of milliseconds a request will exist before the JMS broker can remove it.

Configuration bean

You configure consumer runtime behavior using the org.apache.cxf.transport.jms.conduit.JMSConduitConfigBean configuration bean class.

Configuration property

You use the clientConfig property to set JMS consumer runtime behavior. This property has a single element called jms-conf:clientConfig. This element's attributes, listed in the following table, specify the configuration values for consumer runtime behavior.

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Code Block
titleJMS Consumer Endpoint Runtime Configuration
<bean id="{http://cxf.apache.org/jms_endpt}HelloWorldJMSPort.jms-conduit"
      class="org.apache.cxf.transport.jms.conduit.JMSConduitConfigBean<jms:conduit id="{http://cxf.apache.org/jms_endpt}HelloWorldJMSPort.jms-conduit">
...
  <property name="clientConfig">
    <value>
      <jms-conf:clientConfigruntimePolicy clientReceiveTimeout="500"
                             messageTimeToLive="500" />
    </value>
  </property>
</bean></jms:conduit>

Service Specific Runtime Configuration

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  • the amount of time a response message can remain unreceived be fore the JMS broker can delete it.
  • the client identifier used when creating and accessing durable subscriptions.

Configuration bean

...

  • .

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The serverConfig property is used to specify the service runtime configuration. It takes a single jms-conf:serverConfig element. This element's attributes, listed below, specify the configuration values that control the service's runtime behavior.

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Code Block
titleJMS Service Endpoint Runtime Configuration
<bean<jms:destination id="{http://cxf.apache.org/jms_endpt}HelloWorldJMSPort.jms-destination"
      class="org.apache.cxf.transport.jms.destination.JMSDestinationConfigBean">
...
  <property name="serverConfig">
    <value>
      <jms-conf:serverConfigcxf.apache.org/jms_endpt}HelloWorldJMSPort.jms-destination">
  <jms:runtimePolicy messageTimeToLive="500"
                             durableSubscriptionClientId="jms-test-id" />
    </value>
  </property>
</bean></jms:destination>