| Calculator RMI Reference Sample |
| =============================== |
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| This sample illustrates the use of Tuscany RMI Binding to call reference |
| services that are hosted as Java RMI services. |
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| The README in the samples directory (the directory above this) provides |
| general instructions about building and running samples. Take a look there |
| first. |
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| If you just want to run it to see what happens open a command prompt, first |
| navigate to the calculator-rmi-service sample and do: |
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| ant run |
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| OR if you don't have ant, on Windows do |
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| java -cp ..\..\lib\tuscany-sca-manifest.jar;target\sample-calculator-rmi-service.jar calculator.CalculatorServer |
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| and on *nix do |
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| java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-calculator-rmi-service.jar calculator.CalculatorServer |
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| Now you have the server running you need to open another command prompt, navigate |
| to this sample directory and do: |
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| ant run |
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| OR if you don't have ant, on Windows do |
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| java -cp ..\..\lib\tuscany-sca-manifest.jar;target\sample-calculator-rmi-reference.jar calculator.CalculatorClient |
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| and on *nix do |
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| java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-calculator-rmi-reference.jar calculator.CalculatorClient |
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| Sample Overview |
| --------------- |
| This sample extends the calculator sample by replacing the local wired |
| connections with RMI bindings. Instead of local add, subtract, multiply and |
| divide components, an RMI service implementation now provides the |
| add, subtract, multiply and divide interfaces and is hosted as an RMI server. |
| References specified in the .composite file include an RMI binding which targets |
| this RMI server. |
| |
| This sample adds a number of classes to the basic calculator sample: |
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| calculator-rmi-reference/ |
| src/ |
| main/ |
| java/ |
| calculator/ |
| CalculatorService.java - as calculator sample |
| AddService.java - as calculator sample |
| SubtractService.java - as calculator sample |
| MultipleService.java - as calculator sample |
| DivideService.java - as calculator sample |
| CalculatorClient.java - as calculator sample |
| CalculatorServiceImpl.java - calls the RMI service |
| that provides the target for the |
| RMI bindings in the composite |
| resources/ |
| CalculatorRMIReference.composite - the SCA assembly for this sample |
| test/ |
| java/ |
| calculator/ |
| CalculatorRMIReferenceTestCase.java - JUnit test case |
| CalculatorRMIServiceImpl.java - test RMI service to call |
| calculator-rmi-reference.png - a pictorial representation of the |
| .composite file |
| build.xml - the Ant build file for the client |
| 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. |
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| Building And Running The Sample Using Ant |
| ----------------------------------------- |
| With the binary distribution the sample can be built and run using Ant. |
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| The server provides an RMI server that the acts as a target for the SCA RMI |
| bindings. Start a new console and use the following commands. |
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| cd calculator-rmi-service |
| ant compile |
| ant run |
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| This will run up the server and display the following. |
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| run: |
| [java] Starting of the SCA Calculator Application exposed as RMI Services... |
| [java] ...Press Enter to Exit... |
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| The client is very similar to the calculator sample. It starts the SCA runtime |
| and calls each of the calculator operations. In doing this the RMI bindings |
| make calls out to the RMI server you started in the previous step. Start |
| a new console and use the following commands. |
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| cd calculator-rmi-reference |
| ant compile |
| ant run |
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| You should see the following output from the run target. |
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| run: |
| [java] 3 + 2=5.0 |
| [java] 3 - 2=1.0 |
| [java] 3 * 2=6.0 |
| [java] 3 / 2=1.5 |
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| If you now return to the console window running the server and press enter the |
| server should stop. |
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| 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. |
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| cd calculator-rmi-reference |
| mvn |
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| You should see the following output from the test phase. |
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| ------------------------------------------------------- |
| T E S T S |
| ------------------------------------------------------- |
| Running calculator.CalculatorRMIReferenceTestCase |
| Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 5.308 sec |
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| Results : |
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| Tests run: 1, Failures: 0, Errors: 0, Skipped: 0 |
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| This shows that the Junit test cases have run successfully. |
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