A scenario very similar to what you have described below is demonstrated in our helloworld-reference itest, and responding to your question, in this case we are not going to make a webservice call, but a local call, and you can even remove the binding.ws from the component B service.
As for your previous question about bpel and widget, I'll see if I can find some time to reproduce the sample scenario in my sandbox. [1] https://svn.apache.org/repos/asf/tuscany/branches/sca-java-1.x/itest/bpel/helloworld-reference On Tue, Jun 2, 2009 at 11:01 PM, Rupesh M G <rupesh.gopinat...@ibsplc.com> wrote: > > Hello, > > Consider this interaction scenario in the same tuscany runtime. > > SCA component A --> implementation.bpel > SCA component B --> implementation.java with binding.ws > > If A invokes B, will it be a local java call? or a webservice call. > > In my understanding, BPEL can manage only webservice interactions. > > I would like to know if SCA / tuscany does any extra step to avoid > this marshalling / unmarshalling overhead. > > > Regards, > Rupesh > > > > Peng Han <han.p...@fernuni-hagen.de> > > 06/01/2009 03:50 PM > > Please respond to > u...@tuscany.apache.org > To > u...@tuscany.apache.org > cc > Subject > Re: how to access another SCA Component in BPEL > > > > > Dear Resende: > > Thanks a lot for your prompt response. > > I changed the binding to jsoncrpc and get the following error: > > Exception in thread "main" org.osoa.sca.ServiceRuntimeException: > java.lang.ClassCastException: > org.apache.tuscany.sca.interfacedef.wsdl.impl.WSDLInterfaceImpl cannot > be cast to org.apache.tuscany.sca.interfacedef.java.JavaInterface > at > org.apache.tuscany.sca.host.embedded.SCADomain.createNewInstance(SCADomain.java:220) > at > org.apache.tuscany.sca.host.embedded.SCADomain.newInstance(SCADomain.java:63) > at helloworld.BPELClient.main(BPELClient.java:47) > Caused by: java.lang.ClassCastException: > org.apache.tuscany.sca.interfacedef.wsdl.impl.WSDLInterfaceImpl cannot > be cast to org.apache.tuscany.sca.interfacedef.java.JavaInterface > at > org.apache.tuscany.sca.binding.jsonrpc.provider.JSONRPCServiceBindingProvider.getTargetJavaClass(JSONRPCServiceBindingProvider.java:158) > at > org.apache.tuscany.sca.binding.jsonrpc.provider.JSONRPCServiceBindingProvider.start(JSONRPCServiceBindingProvider.java:91) > at > org.apache.tuscany.sca.core.assembly.CompositeActivatorImpl$3.run(CompositeActivatorImpl.java:630) > at java.security.AccessController.doPrivileged(Native Method) > at > org.apache.tuscany.sca.core.assembly.CompositeActivatorImpl.start(CompositeActivatorImpl.java:628) > at > org.apache.tuscany.sca.core.assembly.CompositeActivatorImpl.start(CompositeActivatorImpl.java:560) > at org.apache.tuscany.sca.node.impl.NodeImpl.start(NodeImpl.java:668) > at > org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain.init(DefaultSCADomain.java:182) > at > org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain.<init>(DefaultSCADomain.java:97) > at > org.apache.tuscany.sca.host.embedded.SCADomain.createNewInstance(SCADomain.java:182) > ... 2 more > > > However, if I change the interface of BPEL component service from WS to > Java as follows: > > <component name="BPELHelloWorldComponent"> > <implementation.bpel process="hns:HelloWorld"/> > <service name="helloPartnerLink"> > <interface.java > interface="org.apache.tuscany.implementation.bpel.example.helloworld.HelloPortType"/> > <tuscany:binding.jsonrpc uri="http://localhost:8080/services"/> > </service> > </component> > > I will get a "null" return value. The code in javascript is as follows: > > //@Reference > var mainRegReference = new Reference( "RegistrationReference" ); > > var mytext = "Hello again"; > document.write(mytext); > > > function getWeather() { > var city = document.getElementById( "cityField" ).value; > var country = document.getElementById( "countryField" ).value; > > var returnString = mainRegReference.hello("weather", > displayWeather); > } > > function displayWeather(weather){ > document.write(weather); > } > > > Best Regards > > Peng >> On Sat, May 30, 2009 at 12:35 PM, Peng Han <han.p...@gmail.com> wrote: >> >>> Dear Resende: >>> >>> I tried to access the links you provided but it seems that it was broken. >>> Would you please check it? >>> >>> >> >> >> https://svn.apache.org/repos/asf/tuscany/branches/sca-java-1.x/itest/bpel/helloworld-reference/ >> >> >>> Also I would like to ask whether it is possible to consume a service >>> provided by a .bpel implemented component >>> from a component implemented as widget and how. I tried to do it in the >>> following composite but the program >>> seems stuck when invoking the service. >>> >> >> You should be able to do this, using json-rpc binding. >> I responded to your other thread "Wiring a Widget Component and BPEL >> Component" with more details on how to try to accomplish this, but >> feel free to let me know if you are not making progress, and I can try >> to get some examples available. >> >> >>> Thanks a lot! >>> >>> the composite is as follows: >>> >>> <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"; >>> >>> >>> xmlns:hns="http://tuscany.apache.org/implementation/bpel/example/helloworld"; >>> xmlns:tuscany="http://tuscany.apache.org/xmlns/sca/1.0"; >>> name="helloworld" >>> targetNamespace="http://bpel";> >>> <component name="BPELHelloWorldComponent"> >>> <implementation.bpel process="hns:HelloWorld" /> >>> <service name="helloPartnerLink"> >>> <interface.wsdl >>> >>> >>> interface="http://tuscany.apache.org/implementation/bpel/example/helloworld.wsdl#wsdl.interface(HelloPortType)" >>> /> >>> <binding.ws uri="http://localhost:8080/BPELHelloWorldComponent"; >>> /> >>> </service> >>> </component> >>> <component name="RegistrationWidgetComponent"> >>> <tuscany:implementation.widget location="Registration.html" /> >>> <service name="Widget"> >>> <tuscany:binding.http uri="http://localhost:8080/Registration"; >>> /> >>> </service> >>> <reference name="RegistrationReference"> >>> <interface.wsdl >>> >>> >>> interface="http://tuscany.apache.org/implementation/bpel/example/helloworld.wsdl#wsdl.interface(HelloPortType)" >>> /> >>> <binding.ws uri="http://localhost:8080/BPELHelloWorldComponent"; >>> /> >>> </reference> >>> </component> >>> <service name="RegistrationService" >>> promote="RegistrationWidgetComponent/Widget" /> >>> <wire source="RegistrationWidgetComponent/RegistrationReference" >>> target="BPELHelloWorldComponent/helloPartnerLink" /> >>> </composite> >>> >>> Best Regards >>> >>> P.Han >>> >>>> This is demonstrated in the following bpel-reference iTest [1]. In >>>> this case, we have a grretings java component, and then a BPEL >>>> component that have a reference to this service as described in the >>>> composite below. >>>> >>>> <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"; >>>> targetNamespace="http://bpel"; >>>> xmlns:hns="http://helloworld"; >>>> name="helloworld"> >>>> >>>> <component name="HelloWorldService"> >>>> <implementation.bpel process="hns:HelloWorld"/> >>>> <reference name="greetingsPartnerLink" >>>> target="GreetingsServiceComponent"/> >>>> </component> >>>> >>>> <component name="GreetingsServiceComponent"> >>>> <implementation.java class="greetings.GreetingsServiceImpl" /> >>>> <service name="GreetingsService"> >>>> >>>> <interface.wsdl >>>> interface="http://greetings#wsdl.interface(Greetings)" /> >>>> </service> >>>> </component> >>>> </composite> >>>> >>>> Please let me know if you have questions or any problems running the >>>> sample test scenario. >>>> >>>> >>>> [1] >>>> >>>> https://svn.apache.org/repos/asf/tuscany/java/sca/itest/bpel/helloworld-reference/ >>>> >>>> >>>> On Thu, Aug 28, 2008 at 8:21 PM, xuhongbo <x...@tongtech.com> wrote: >>>> >>>> >>>>> Hi >>>>> Now I am using the sca provided build in bpel engine, and want >>>>> to >>>>> invoke another sca-component in the bpel process; >>>>> Though I could deploy the -java-implement sca component as >>>>> web-service by ws binding,then access it in bpel by import a wsdl >>>>> process. >>>>> This way ask for all sca-java-componet deployed as web-service, and >>>>> seems >>>>> too trival for deployment. >>>>> So does anyone know how to use a sca-reference in a BPEL >>>>> implement >>>>> component to access another sca component? Or some other mechanism can >>>>> direct access sca-component? Typically sca component invoked by the >>>>> bpel >>>>> is >>>>> always implement as Java Language. >>>>> >>>>> Thanks >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>> >>>> >>>> >>> >> >> >> >> > > > > > > > > DISCLAIMER: > > "The information in this e-mail and any attachment is intended only for the > person to whom it is addressed and may contain confidential and/or > privileged material. If you have received this e-mail in error, kindly > contact the sender and destroy all copies of the original communication. IBS > makes no warranty, express or implied, nor guarantees the accuracy, adequacy > or completeness of the information contained in this email or any attachment > and is not liable for any errors, defects, omissions, viruses or for > resultant loss or damage, if any, direct or indirect." > > > > > -- Luciano Resende Apache Tuscany, Apache PhotArk http://people.apache.org/~lresende http://lresende.blogspot.com/
