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diff --git a/sca-java-1.x/branches/sca-java-1.6.2/samples/helloworld-erlang-service/README b/sca-java-1.x/branches/sca-java-1.6.2/samples/helloworld-erlang-service/README new file mode 100644 index 0000000000..ed21c91098 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.6.2/samples/helloworld-erlang-service/README @@ -0,0 +1,111 @@ +Hello World Erlang Service Sample +================================= +This sample demonstrates an SCA service that uses a Erlang binding + +The README in the samples directory (the directory above this) provides +general instructions about building and running samples. Take a look there +first. + +In order to run Erlang samples you need to have Erlang/OTP distribution installed - +epmd binary is required in your system path. See http://erlang.org for downloads. + +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-helloworld-erlang-service.jar helloworld.HelloWorldServer + +and on *nix do + +java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-helloworld-erlang-service.jar helloworld.HelloWorldServer + +Now the server is started you can use the helloworld-erlang-reference sample to +exercise it. + +Sample Overview +--------------- +The sample provides a single component that is wired to a service with a +Erlang binding. + +helloworld-erlang-service/ + src/ + main/ + java/ + helloworld/ + HelloWorldService.java - interface description for + HelloWorldServiceComponent + HelloWorldImpl.java - component implementation + HelloWorldServer.java - starts the SCA Runtime and + deploys the helloworlderlangservice + .composite and then waits for the + service to be called via Erlang + resources/ + helloworlderlangservice.composite - the SCA assembly for this sample + + test/ + java/ + helloworld/ + HelloWorldErlangServerTestCase.java - JUnit test case + dynaignore/ - internal Java classes for ignoring test + in case of missing Erlang/OTP distribution + helloworld-service.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 using the +following commands + +cd helloworld-erlang-service +ant compile +ant run + +You should see the following output from the run target. + +run: + [java] EPMD server started + [java] 2009-05-26 11:59:07 org.apache.tuscany.sca.node.impl.NodeImpl <init> + [java] INFO: Creating node: helloworlderlangservice.composite + [java] 2009-05-26 11:59:08 org.apache.tuscany.sca.node.impl.NodeImpl configureNode + [java] 2009-05-26 11:59:08 org.apache.tuscany.sca.node.impl.NodeImpl configureNode + [java] 2009-05-26 11:59:08 org.apache.tuscany.sca.node.impl.NodeImpl start + [java] INFO: Starting node: helloworlderlangservice.composite + [java] HelloWorld server started (press enter to shutdown) + + +As this point the SCA service is exposed as a Erlang module via Erlang RPC which is +started automatically by the SCA runtime. To stop the server just press +enter. + +To exercise the service run up the helloworld-erlang-reference sample. Take a look at +the README in that sample and you will see you need the following commands + +cd helloworld-erlang-reference +ant run + +Building Sample Using Maven +------------------------------------------- +With either the binary or source distributions the sample can be built +using Maven as follows. + +cd helloworld-erlang-service +mvn + +You should see the following output + +... +[INFO] ------------------------------------------------------------------------ +[INFO] BUILD SUCCESSFUL +[INFO] ------------------------------------------------------------------------ +[INFO] Total time: 15 seconds +[INFO] Finished at: Wed Jul 02 12:50:24 BST 2008 +[INFO] Final Memory: 13M/51M +[INFO] ------------------------------------------------------------------------ + + +This shows that the module has compiled successfully. |