3c7c4a749b
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835700 13f79535-47bb-0310-9956-ffa450edef68
138 lines
4.7 KiB
Text
138 lines
4.7 KiB
Text
Calculator RMI Reference Sample
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===============================
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This sample illustrates the use of Tuscany RMI Binding to call reference
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services that are hosted as Java RMI services.
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The README in the samples directory (the directory above this) provides
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general instructions about building and running samples. Take a look there
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first.
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If you just want to run it to see what happens open a command prompt, first
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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
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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
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---------------
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This sample extends the calculator sample by replacing the local wired
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connections with RMI bindings. Instead of local add, subtract, multiply and
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divide components, an RMI service implementation now provides the
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add, subtract, multiply and divide interfaces and is hosted as an RMI server.
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References specified in the .composite file include an RMI binding which targets
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this RMI server.
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This sample adds a number of classes to the basic calculator sample:
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calculator-rmi-reference/
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src/
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main/
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java/
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calculator/
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CalculatorService.java - as calculator sample
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AddService.java - as calculator sample
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SubtractService.java - as calculator sample
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MultipleService.java - as calculator sample
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DivideService.java - as calculator sample
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CalculatorClient.java - as calculator sample
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CalculatorServiceImpl.java - calls the RMI service
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that provides the target for the
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RMI bindings in the composite
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resources/
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CalculatorRMIReference.composite - the SCA assembly for this sample
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test/
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java/
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calculator/
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CalculatorRMIReferenceTestCase.java - JUnit test case
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CalculatorRMIServiceImpl.java - test RMI service to call
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calculator-rmi-reference.png - a pictorial representation of the
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.composite file
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build.xml - the Ant build file for the client
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pom.xml - the Maven build file
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Note. As this test creates and uses local network connections you may need to
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configure your firewall, if you are running one, to allow the test to run
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successfully.
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Building And Running The Sample Using Ant
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-----------------------------------------
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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
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bindings. Start a new console and use the following commands.
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cd calculator-rmi-service
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ant compile
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ant run
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This will run up the server and display the following.
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run:
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[java] Starting of the SCA Calculator Application exposed as RMI Services...
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[java] ...Press Enter to Exit...
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The client is very similar to the calculator sample. It starts the SCA runtime
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and calls each of the calculator operations. In doing this the RMI bindings
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make calls out to the RMI server you started in the previous step. Start
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a new console and use the following commands.
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cd calculator-rmi-reference
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ant compile
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ant run
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You should see the following output from the run target.
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run:
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[java] 3 + 2=5.0
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[java] 3 - 2=1.0
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[java] 3 * 2=6.0
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[java] 3 / 2=1.5
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If you now return to the console window running the server and press enter the
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server should stop.
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Building And Running The Sample Using Maven
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-------------------------------------------
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With either the binary or source distributions the sample can be built and run
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using Maven as follows.
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cd calculator-rmi-reference
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mvn
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You should see the following output from the test phase.
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-------------------------------------------------------
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T E S T S
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-------------------------------------------------------
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Running calculator.CalculatorRMIReferenceTestCase
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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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