[ http://issues.apache.org/jira/browse/AXIS2-1817?page=all ]
Deepal Jayasinghe reassigned AXIS2-1817:
----------------------------------------
Assignee: Deepal Jayasinghe
> ServiceClient and RPCServiceClient classes
> ------------------------------------------
>
> Key: AXIS2-1817
> URL: http://issues.apache.org/jira/browse/AXIS2-1817
> Project: Apache Axis 2.0 (Axis2)
> Issue Type: Improvement
> Components: samples
> Environment: Linux Fedora5, tomcat 5.5.20, java1.5.0_0.9, Axis2 1.0
> Reporter: Federica Ciotti
> Assigned To: Deepal Jayasinghe
> Attachments: CalcClient.java, MyCalcClient.java, RPC_MyCalcClient.java
>
>
> I have some important doubts on ServiceClient and RPCServiceClient classes.
> In axis I used to do something like this: listProduct = (Vector<Object>)
> call.invoke(new Object[]{});
> When I migrated to axis2 I thought that ServiceClient was the easiest way to
> invoke a method just as I did in axis.
> But I find out that I'm forced to use OMElement for parameters and
> invocation's result in this way (MyCalcClient.java):
> try{
> ServiceClient serviceClient = new ServiceClient();
> serviceClient.setOptions(options);
> OMFactory fac = OMAbstractFactory.getOMFactory();
> OMNamespace omNs =
> fac.createOMNamespace("http://www.cal.com/calc";, "calc");
> OMElement payload = fac.createOMElement(opStr, omNs);
> OMElement param1OM = fac.createOMElement("param1",
> omNs);
> OMElement param2OM = fac.createOMElement("param2",
> omNs);
> param1OM.setText(Integer.toString(pi1));
> param2OM.setText(Integer.toString(pi2));
> payload.addChild(param1OM);
> payload.addChild(param2OM);
> serviceClient.setOptions(options);
> OMElement result = serviceClient.sendReceive(payload);
> System.out.println(result.toString());
>
> }catch(AxisFault af){af.printStackTrace();}
> and this is not very good if you have complex object returned by methods and
> complex parameters.
> Looking at RPCServiceClient i found out an easiest way (class
> RPC_MyCalcClient.java):
> try{
> String opName="add";
> EndpointReference targetEPR = new
> EndpointReference("http://localhost:8080/axis2/services/RPCCalcService/";);
> Options options = new Options();
> options.setTo(targetEPR);
>
> options.setTransportInProtocol(Constants.TRANSPORT_HTTP);
> ConfigurationContext
> configContext=ConfigurationContextFactory.createConfigurationContextFromFileSystem(null,null);
>
> RPCServiceClient sender = new
> RPCServiceClient(configContext, null);
> sender.setOptions(options);
> ArrayList<Integer> arg = new ArrayList<Integer>();
> Integer a = new Integer("100");
> arg.add(a);
> Integer b = new Integer("200");
> arg.add(b);
> QName opAdd = new QName("http:///xsd";, "add");
> Object[] params = new Object[] { a, b };
> Class[] returnTypes = new Class[] { Integer.class };
> Object[] response = sender.invokeBlocking(opAdd,
> params, returnTypes);
> Integer result = (Integer) response[0];
> if (result == null) {System.out.println("Null");}
> else System.out.println("Result "+ result.toString());
> }catch(AxisFault a){a.printStackTrace();}
> If I want something like that: Object[] response =
> sender.invokeBlocking(opAdd, params, returnTypes);
> I'm forced to use RPCServiceClient?
> RPCServiceClient means that I'm using soap/rpc binding style?
> Soap/document-style is supported in axis2?
> I've checked the examples in CalculatorService package, in this case a
> different tecnique is used (CalcClient.java) and a SOAPEnvelope Object is
> returned by the method invocation:
> SOAPEnvelope result = opClient.getMessageContext(
>
> WSDLConstants.MESSAGE_LABEL_IN_VALUE).getEnvelope();
> How can I choose one of these different tecniques?
> Please help me understanding more about and tell me where can I find
> documentation on this issue.
> Many Thanks
> Federica
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