d64d4281ec
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1069273 13f79535-47bb-0310-9956-ffa450edef68
112 lines
5.3 KiB
Text
112 lines
5.3 KiB
Text
Notification Broker Binding Sample
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==================================
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This sample illustrates the use of <binding.notification/> with a
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broker.
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The README in the samples directory (the directory above this) provides
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general instructions about building and running samples. Take a look there
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first.
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Sample Overview
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---------------
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This sample illustrates the use of a notification broker that is located in a
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separate (and remote) composite with respect to any producers or consumers. As
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such, this sample is run in conjunction with the binding-notification-producer
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sample, the binding-notification-consumer sample, or both. Take a look at the
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composite file or the .svg file which shows the composite file in pictorial form.
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The composite service and composite reference each have a <binding.notification/>
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that handles the remote communication. This binding includes an 'ntm' attribute
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that refers to the notification type manager, which manages the connectivity of
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producers, consumers and brokers, and which (for this sample) is assumed to be
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running on http://localhost:8083. The ntm is a system component that is included in
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and runs as part of the binding-notification module.
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This sample also illustrates the use of a wsdl interface in the notification
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component's <implementation.notification/>. This allows messages sent and received
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via <binding.notification/> to be transported as literal xml over http.
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Building And Running The Sample Using Ant
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-----------------------------------------
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With the binary distribution the sample can be built and run using Ant as
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follows
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cd binding-notification-broker
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ant compile
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ant run
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You should see the following output from the run target.
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run:
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[java] Sep 14, 2007 11:14:24 AM org.apache.tuscany.sca.http.jetty.JettyServer addServletMapping
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[java] INFO: Added Servlet mapping: http://localhost:8083/ntm/trafficAdvisory
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[java] Sep 14, 2007 11:14:24 AM org.apache.tuscany.sca.http.jetty.JettyServer addServletMapping
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[java] INFO: Added Servlet mapping: http://localhost:8083/consumer/trafficAdvisory
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[java] Sep 14, 2007 11:14:24 AM org.apache.tuscany.sca.http.jetty.JettyServer addServletMapping
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[java] INFO: Added Servlet mapping: http://localhost:8083/producer/trafficAdvisory
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Building And Running The Sample Using Maven
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-------------------------------------------
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With either the binary or source distributions the sample can be built and run
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using Maven as follows.
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cd binding-notification-broker
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mvn
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Sample Usage
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------------
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This sample is run using the tuscany binary distribution. To run it, navigate to this sample's directory and
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on Wondows, use following command:
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java -Dnotification.httpPort=8080 -cp ..\..\lib\tuscany-sca-manifest.jar;target\sample-binding-notification-broker.jar notification.broker.TrafficAdvisoryServer
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on *nix, use following command:
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java -Dnotification.httpPort=8080 -cp ../../lib/tuscany-sca-manifest.jar:target/sample-binding-notification-broker.jar notification.broker.TrafficAdvisoryServer
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this should bring up the following prompt:
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Send a report value, ^C or <end> to end
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at this point you should be able to type a message to send, for instance:
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Traffic congestion
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Notice that before you try to receive any message, you should bring up the
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consumer sample or another broker sample. When you have finished using this
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sample, type 'end' or ^C to end.
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Also notice that '-Dnotification.httpPort=8080' is used in the java command.
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This indicates the port the sample should use. This also says that this server
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is not going to play the role of ntm, given our previous assumption. It is important
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that the first one of the producer, consumer or broker sample that is run be the
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one that uses '-Dnotification.httpPort=8083', otherwise there is no ntm to talk
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to and an exception will be thrown.
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Sample directory structure:
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---------------------------
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binding-notification-broker/
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src/
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main/
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java/
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notification.broker/
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TestCaseProducer.java - interface for the producer component
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TrafficAdvisory.java - remote interface referred to by the producer component
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and for the consumer component
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TrafficAdvisoryConsumer.java - implementation for the consumer components
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TrafficAdvisoryProducer.java - implementation for the producer component
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TrafficAdvisoryServer.java - server class including main entry point
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resources/
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wsdl/
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TrafficAdvisory.wsdl - remote interface for the notification component
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TrafficAdvisoryNotification.componentType - the component type referred to by
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<implementation.notification/>
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TrafficAdvisoryNotification.composite - the main composite including producer, consumer and
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notification components, and composite service and reference
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binding-notification-broker.png - a pictorial representation of the sample .composite file
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build.xml - the Ant build file
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pom.xml - the Maven build file
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