SwitchYard Service with multiple RestEasy bound Service Operations
mashama Dec 7, 2012 10:35 AMI am having some difficulty implementing a Bean Service with multiple RestEasy bound Service Operations. The first issue is with method overloading within the Service contract/interface. I am not sure if this is supposed to work but IMHO it would be nice if it did. The second issue I am having is with an AbstractMethodError exception when I do not overload the Service Operation definitions. Everything works as expected when I create two separate Bean Services each with a single RestEasy bound Service Operation. All in all I was able to produce a proof of concept with relative ease after getting past a mental lapse thanks to the community here. As expected ... #JBOSS #SWITCHYARD #ROCKS!
OVERLOADED SERVICE OPERATION DEFINITIONS
@Path("/charts") public interface IAgeAndGenderChart { @GET @Path("/opportunity/analysis/{analysisId}/chart/ageAndGender") @Produces({"application/xml","application/json"}) public String computeSVG(@PathParam("analysisId") String analysisId) throws Exception; @POST @Path("/external/opportunity/analysis/chart/ageAndGender") @Produces({"application/xml","application/json"}) @Consumes({"application/json"}) public String computeSVG(CostimpactCoVsIndEmpDistributionResultTransform transform) throws Exception; }
09:53:03,579 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/DataServicesSwitchYardPOC].[RestEasy]] (http-localhost-127.0.0.1-8080-1) Servlet.service() for servlet RestEasy threw exception: org.jboss.resteasy.spi.UnhandledException: java.lang.ClassCastException: org.switchyard.HandlerException cannot be cast to java.lang.String
at org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:340) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:214) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:190) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:540) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:502) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.3.2.Final.jar:]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_29]
Caused by: java.lang.ClassCastException: org.switchyard.HandlerException cannot be cast to java.lang.String
at com.chp.valuequest.controller.chart.api.IAgeAndGenderChartRestImpl.computeSVG(IAgeAndGenderChartRestImpl.java)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_29]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_29]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_29]
at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_29]
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:155) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:257) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:222) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:211) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:525) [resteasy-jaxrs-2.3.2.Final.jar:]
... 18 more
NON-OVERLOADED SERVICE OPERATION DEFINITIONS
@Path("/charts") public interface IAgeAndGenderChart { @GET @Path("/opportunity/analysis/{analysisId}/chart/ageAndGender") @Produces({"application/xml","application/json"}) public String computeSVG(@PathParam("analysisId") String analysisId) throws Exception; @POST @Path("/external/opportunity/analysis/chart/ageAndGender") @Produces({"application/xml","application/json"}) @Consumes({"application/json"}) public String computeSVG2(CostimpactCoVsIndEmpDistributionResultTransform transform) throws Exception; }
09:51:45,910 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/DataServicesSwitchYardPOC].[RestEasy]] (http-localhost-127.0.0.1-8080-1) Servlet.service() for servlet RestEasy threw exception: org.jboss.resteasy.spi.UnhandledException: java.lang.AbstractMethodError: com.chp.valuequest.controller.chart.api.IAgeAndGenderChartRestImpl.computeSVG2(Lcom/chp/valuequest/model/transformation/CostimpactCoVsIndEmpDistributionResultTransformLjava/lang/String;
at org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:340) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:214) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:190) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:540) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:502) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.3.2.Final.jar:]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_29]
Caused by: java.lang.AbstractMethodError: com.chp.valuequest.controller.chart.api.IAgeAndGenderChartRestImpl.computeSVG2(Lcom/chp/valuequest/model/transformation/CostimpactCoVsIndEmpDistributionResultTransformLjava/lang/String;
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_29]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_29]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_29]
at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_29]
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:155) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:257) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:222) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:211) [resteasy-jaxrs-2.3.2.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:525) [resteasy-jaxrs-2.3.2.Final.jar:]
... 18 more