Calculator Script Sample ======================== This sample implements a simple calculator using SCA components implemented using Java, JavaScript, Ruby, Python and Groovy. 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-script.jar calculator.CalculatorClient and on *nix do java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-calculator-script.jar calculator.CalculatorClient 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. Each component is implemented using a different language. calculator-script/ src/ main/ java/ calculator/ CalculatorService.java - the first component calls +-/* as appropriate AddService.java - adds two numbers SubtractService.java - subtracts one number from another MultipleService.java - multiplies two numbers DivideService.java - divides one number by another CalculatorClient.java - starts the SCA Runtime and deploys the Calculator.composite. It then calls the deployed Calculator Components services resources/ calculator/ AddServiceImpl.js - A JavaScript implementation of the Add component SubtractServiceImpl.rb - A Ruby implementation of the Subtract component MultiplyServiceImpl.py - A Python implementation of the Multiple component DivideServiceImpl.groovy- A Groovy implementation of the Divide component Calculator.composite - the SCA assembly for this sample calculator-script.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-script 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-script 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: 5.918 sec Results : Tests run: 1, Failures: 0, Errors: 0, Skipped: 0 This shows that the Junit test cases have run successfully.