Problem with Tuscany 2.0 M5 hello world example

[Roberts, Keith (SAIC)]

Hi all

 

I'm a newbie, trying to get a better understanding of Tuscany be
studying and executing the examples...

 

I'm embarrassed to admit that I have not gotten past the simplest
helloworld example. 

 

I've looked at the 'store' example and feel that I understand it pretty
well. I went through the tutorial and was able to get it to work.

 

I am assuming that the helloworld example needs to be launched to host
the helloworld service just like the store example. I tried installing
the eclipse Tuscany plugin but had problems with the eclipse update
manager.

 

I didn't see a launcher so I built one like the store example listed
below. 

 

package launch;

 

import org.apache.tuscany.sca.node.Contribution;

import org.apache.tuscany.sca.node.ContributionLocationHelper;

import org.apache.tuscany.sca.node.Node;

import org.apache.tuscany.sca.node.NodeFactory;

 

public class Launch {

 

            /**

             * @param args

             */

            public static void main(String[] args)  throws Exception {

        System.out.println("Starting ...");

        String contribution =
ContributionLocationHelper.getContributionLocation(Launch.class);

        Node node =
NodeFactory.newInstance().createNode("helloworld.composite", new
Contribution("test", contribution));

        node.start();

        System.out.println("store.composite ready for big business
!!!");

        System.in.read();

        System.out.println("Stopping ...");

        node.stop();

        System.out.println();

            }

 

}

 

 

But when I launch I get this exception. 

 

SEVERE: Element
{http://docs.oasis-open.org/ns/opencsa/sca/200912}implementation.java
cannot be processed. ([row,col,system-id]:
[26,9,"file:/C:/data/frameworks/tuscany-sca-2.0-M5/samples/helloworld/ta
rget/classes/helloworld.composite"])

Exception in thread "main" java.lang.IllegalStateException:
org.oasisopen.sca.ServiceRuntimeException: [Contribution: test,
Artifact: helloworld.composite] - Element
{http://docs.oasis-open.org/ns/opencsa/sca/200912}implementation.java
cannot be processed. ([row,col,system-id]:
[26,9,"file:/C:/data/frameworks/tuscany-sca-2.0-M5/samples/helloworld/ta
rget/classes/helloworld.composite"])

      at
org.apache.tuscany.sca.node.impl.NodeImpl.start(NodeImpl.java:173)

      at launch.Launch.main(Launch.java:17)

Caused by: org.oasisopen.sca.ServiceRuntimeException: [Contribution:
test, Artifact: helloworld.composite] - Element
{http://docs.oasis-open.org/ns/opencsa/sca/200912}implementation.java
cannot be processed. ([row,col,system-id]:
[26,9,"file:/C:/data/frameworks/tuscany-sca-2.0-M5/samples/helloworld/ta
rget/classes/helloworld.composite"])

      at
org.apache.tuscany.sca.node.impl.NodeFactoryImpl.analyzeProblems(NodeFac
toryImpl.java:199)

      at
org.apache.tuscany.sca.node.impl.NodeFactoryImpl.loadContributions(NodeF
actoryImpl.java:432)

      at
org.apache.tuscany.sca.node.impl.NodeImpl.start(NodeImpl.java:125)

      ... 1 more

 

I expected this to run. I'm not sure if there is an issue with how I
have specified the helloworld.composite in the launcher or if there is a
problem instantiating the HelloWorldImpl class, or some other issue.

 

Once I get the helloworld example to run on the server; I'm expecting
the helloworld-scaclient - HelloworldSCAClient application to run as the
client to the helloworld server service.

 

I think I'm on the right track but not sure. This is probably some
little simple thing that I'm overlooking. 

 

Thanks in advance...

 

 

 

Keith G. Roberts

SAIC/Evolvent VA Account

CHDR team

801-924-2130