Calculator CORBA Service Sample =============================== This sample illustrates the use of the Tuscany CORBA Binding to expose component services as CORBA objects. It also demonstrates how a simple Java CORBA Client application invokes the SCA Application's services exposed as CORBA objects. 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-calculator-corba-service.jar calculator.CalculatorCORBAServer and on *nix do java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-calculator-corba-service.jar calculator.CalculatorCORBAServer Now you have the server running you need to open another command prompt, navigate to the calculator-corba-reference 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-calculator-corba-reference.jar calculator.CalculatorClient and on *nix do java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-calculator-corba-reference.jar calculator.CalculatorClient Sample Overview --------------- This sample extends the calculator sample by replacing the local service binding with a CORBA binding. A Java client can use CORBA client code to call the service exposed by the SCA application. The name service which is used in CORBA communication is provided by the Tuscany CORBA hosting module (maven dependency: tuscany-host-corba-jse-tns) - see the binding.corba reference on the Apache Tuscany website for details. This sample adds a number of classes to the basic calculator sample: calculator-corba-service/ src/ main/ java/ calculator/ CalculatorService.java - as calculator sample CalculatorServiceImpl.java AddService.java - as calculator sample AddServiceImpl.java SubtractService.java - as calculator sample SubtractServiceImpl.java MultiplyService.java - as calculator sample MultiplyServiceImpl.java DivideService.java - as calculator sample DivideServiceImpl.java resources/ CalculatorCORBAServer.composite - the SCA assembly for this sample test/ java/ calculator/ CalculatorCORBAServerTestCase.java - JUnit test case idl/ - contains files generated from the IDL file. Files are used to access the SCA component. CalculatorCORBAServiceHelper.java CalculatorCORBAService.java _CalculatorCORBAServiceStub.java CalculatorCORBAServiceHolder.java CalculatorCORBAServiceOperations.java resources/ CalculatorCORBA.idl - IDL description for SCA component pom.xml - the Maven build file Note. As this test creates and uses local network connections you may need to configure your firewall, if you are running one, to allow the test to run successfully. Building And Running The Sample Using Ant ----------------------------------------- With the binary distribution the sample can be built and run using Ant. Two build files are used to support client and server functions. The server starts the SCA runtime and loads the SCA calculator application which exposes a CORBA service. Start a new console and use the following commands. cd calculator-corba-service ant compile ant run This will run up the server and display the following. run: [java] Calculator CORBA server started (press enter to shutdown) The client is very similar to the calculator sample It locates the CORBA service that the SCA runtime is exposing and calls each of the calculator operations. Start a new console and use the following commands. cd calculator-corba-reference ant compile ant run You should see the following output from the run target. run: [java] 3 + 2=5.0 [java] 3 - 2=1.0 [java] 3 * 2=6.0 [java] 3 / 2=1.5 If you now return to the console window running the server and press enter the server should stop. 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 calculator-corba-service mvn You should see the following output from the test phase. ------------------------------------------------------- T E S T S ------------------------------------------------------- Running calculator.CalculatorCORBAServerTestCase Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 5.819 sec Results : Tests run: 1, Failures: 0, Errors: 0, Skipped: 0 This shows that the Junit test cases have run successfully.