Simple Callback Sample ====================== This sample demonstrates asynchronous messaging using a callback. The README in the samples directory (the directory above this) provides general instructions about building and running samples. Take a look there first. If you just want to run it to see what happens open a command prompt, navigate to this sample directory and do: ant run OR if you don't have ant, on Windows do java -cp ..\..\lib\tuscany-sca-manifest.jar;target\sample-simple-callback.jar simplecallback.SimpleCallbackClient and on *nix do java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-simple-callback.jar simplecallback.SimpleCallbackClient Sample Overview --------------- The sample provides a single composite with two components. MyClientComponent is wired to MyServiceComponent. The interface of MyServiceComponent describes one method as ONEWAY and with a callback semantic. When a message passes from client to service the response is returned via the callback asynchronously. simple-callback/ src/ main/ java/ simplecallback/ MyCient.java - client interface MyClientImpl.java - implements the client and service callback interfaces MyService.java - service interface MyServiceCallback.java - service callback interface, implemented by the client MyServiceImple.java - implements the service interface SimpleCallbackClient.java - starts the SCA Runtime and deploys the simplecallback.composite. It then calls MyClientComponent which in turn calls MyServiceComponent resources/ simplecallbac.composite - the SCA assembly for this sample simple-callback.png - a pictorial representation of the sample .composite file build.xml - the Ant build file pom.xml - the Maven build file Building And Running The Sample Using Ant ----------------------------------------- With the binary distribution the sample can be built and run using Ant as follows cd simple-callback ant compile ant run You should see the following output from the run target. run: [java] Main thread Thread[main,5,main] [java] Work thread Thread[pool-1-thread-1,5,main] [java] Result: -> someMethod -> receiveResult Building And Running The Sample Using Maven ------------------------------------------- With either the binary or source distributions the sample can be built and run using Maven as follows. cd simple-callback mvn You should see the following output from the test phase. ------------------------------------------------------- T E S T S ------------------------------------------------------- Running simplecallback.SimpleCallbackTestCase Main thread Thread[main,5,main] Sleeping ... Work thread Thread[pool-1-thread-1,5,main] Result: -> someMethod -> receiveResult Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.692 sec Results : Tests run: 1, Failures: 0, Errors: 0, Skipped: 0 This shows that the Junit test cases have run successfully.