| Calculator Sample |
| ================= |
| This sample implements a simple calculator using SCA components. |
| |
| 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: |
| |
| java -jar <tuscany-install>/modules/tuscany-node-launcher.jar Calculator.composite target/sample-calculator-lean.jar |
| |
| Sample Overview |
| --------------- |
| The sample provides a single calculator service with a default SCA (java) |
| binding. The CalculatorClient exercises this interface by calling add, |
| subtract, multiply and divide operations. This results in messages passing to |
| the appropriate components in the composite across the local wires. |
| |
| calculator/ |
| src/ |
| main/ |
| java/ |
| calculator/ |
| CalculatorService.java - the first component, calls +-/* as |
| appropriate |
| CalculatorServiceImpl.java |
| AddService.java - adds two numbers |
| AddServiceImpl.java |
| SubtractService.java - subtracts one number from another |
| SubtractServiceImpl.java |
| MultiplyService.java - multiplies two numbers |
| MultiplyServiceImpl.java |
| DivideService.java - divides one number by another |
| DivideServiceImpl.java |
| CalculatorClient.java - a client component that calls the |
| Calculator services |
| resources/ |
| Calculator.composite - the SCA assembly for this sample |
| test/ |
| java/ |
| calculator/ |
| CalculatorTestCase.java - JUnit test case |
| calculator.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 calculator |
| 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 |
| |
| 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 |
| mvn |
| |
| You should see the following output from the test phase. |
| |
| ------------------------------------------------------- |
| T E S T S |
| ------------------------------------------------------- |
| Running calculator.CalculatorTestCase |
| Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.272 sec |
| |
| Results : |
| |
| Tests run: 1, Failures: 0, Errors: 0, Skipped: 0 |
| |
| This shows that the Junit test cases have run successfully. |
