Hi, Could you please append a reproducer project so that I can take a close look?
Freeman －－－－－－－－－－－－－ Freeman(Yue) Fang Red Hat, Inc. > On Jul 10, 2019, at 3:06 AM, Zoltán Balogh <[email protected]> wrote: > > thanks for your answer but now I'm totally confused... > If I set CamelCxfRsUsingHttpAPI to true the getKodtarElemListByType > works properly. > But in this case I got exception for > @POST > public Response createKodtarElem(KodtarDto dto); > > 08:49:11,874 SEVERE [org.apache.cxf.jaxrs.utils.JAXRSUtils] (default > task-10) No message body writer has been found for class > hu.fornax.tua.kodtar.dto.KodtarDto, ContentType: application/xml > 08:49:11,875 WARNING [org.apache.cxf.phase.PhaseInterceptorChain] > (default task-10) Interceptor for > {http://localhost:8080/tua-kodtar/rest}WebClient has thrown exception, > unwinding now: org.apache.cxf.interceptor.Fault: No message body > writer has been found for class hu.fornax.tua.kodtar.dto.KodtarDto, > ContentType: application/xml > > The json provider is set (&providers=#jsonProvider), I have tried with > JacksonJaxbJsonProvider and with JacksonJsonProvider as well > > If I set CamelCxfRsUsingHttpAPI to false the @Post works. Otherwise > getting NPE to the @GET as I wrote in my first mail. > > I want only to proxy rest request to an other service where a cxfrs > rest endpoint consume, please help me how I can solve it? > > Thanks again your support! > > > > > > > > Freeman Fang <[email protected]> ezt írta (időpont: 2019. júl. > 9., K, 19:33): >> >> Hi, >> >> The difference with camel-cxf proxy is that you have >> setHeader("CamelCxfRsUsingHttpAPI", constant("false”)) in the route, which >> means you will use proxy client to invoke the RS server, so the para types >> must match the one in resourceClasses, without camel-cxf proxy you actually >> use http client. If you have setHeader("CamelCxfRsUsingHttpAPI", >> constant(“true”)) in your router the behaviour should be same with or >> without proxy. >> >> So if you have setHeader("CamelCxfRsUsingHttpAPI", constant("false”)) , >> ensure you have all parameters available in the payload. >> >> I think we probably can enhance here a bit, instead of throw NPE, throwing >> NoSuchMethodException if can’t find match method in the client proxy. >> －－－－－－－－－－－－－ >> Freeman(Yue) Fang >> >> Red Hat, Inc. >> >> >> >> >> >>> On Jul 9, 2019, at 7:32 AM, Zoltán Balogh <[email protected]> wrote: >>> >>> Hi, >>> >>> why the cxfrs producer not accept null query params? Should I set an >>> additional parameter to pass null value? >>> >>> My route: >>> from("cxfrs:http://localhost:8080/tua"; >>> + "?resourceClasses=" >>> + "hu.fornax.tua.kodtar.protocol.rest.KodtarREST" >>> + "&loggingFeatureEnabled=true" >>> + "&providers=#jsonProvider") >>> .removeHeader("Content-Type") >>> .setHeader("CamelCxfRsUsingHttpAPI", >>> constant("false")) >>> .log(ESBLog.ESB + "REST request: ${headers}") >>> .to("cxfrs:http://localhost:8080/tua-kodtar/rest"; >>> + >>> "?resourceClasses=hu.fornax.tua.kodtar.protocol.rest.KodtarREST&throwExceptionOnFailure=false&loggingFeatureEnabled=true&providers=#jsonProvider") >>> .otherwise() >>> >>> The rest interface: >>> >>> @Path("/{type}") >>> public List<KodtarDto> getKodtarElemListByType(@PathParam("type") >>> KodtarType type, @QueryParam("id") Long id); >>> >>> If I call the consumer (cxfrs://http://localhost:8080/tua) to proxy the >>> request: >>> >>> 13:23:34,882 ERROR [org.apache.camel.processor.DefaultErrorHandler] >>> (default task-2) Failed delivery for (MessageId: >>> ID-DESKTOP-A2U86J9-59663-1562671187095-11-1 on ExchangeId: >>> ID-DESKTOP-A2U86J9-59663-1562671187095-11-2). Exhausted after delivery >>> attempt: 1 caught: java.lang.NullPointerException >>> >>> Message History >>> --------------------------------------------------------------------------------------------------------------------------------------- >>> RouteId ProcessorId Processor >>> Elapsed (ms) >>> [route15 ] [route15 ] >>> [cxfrs://http://localhost:8080/tua?loggingFeatureEnabled=true&providers=%23json] >>> [ 65] >>> [route15 ] [removeHeader1 ] [removeHeader[Content-Type] >>> ] [ 1] >>> [route15 ] [setHeader3 ] >>> [setHeader[CamelCxfRsUsingHttpAPI] >>> ] [ 0] >>> [route15 ] [log31 ] [log >>> ] [ 3] >>> [route15 ] [log32 ] [log >>> ] [ 1] >>> [route15 ] [choice3 ] >>> [when[{header{header(CamelHttpUri)} contains >>> /tua/api/file}]choice[when[{header] [ 54] >>> [route15 ] [to8 ] >>> [cxfrs:http://localhost:8080/tua-kodtar/rest?resourceClasses=hu.fornax.tua.kodt] >>> [ 49] >>> >>> Stacktrace >>> ---------------------------------------------------------------------------------------------------------------------------------------: >>> java.lang.NullPointerException >>> at >>> org.apache.camel.component.cxf.jaxrs.CxfRsProducer.getParameterTypes(CxfRsProducer.java:524) >>> at >>> org.apache.camel.component.cxf.jaxrs.CxfRsProducer.invokeProxyClient(CxfRsProducer.java:430) >>> at >>> org.apache.camel.component.cxf.jaxrs.CxfRsProducer.process(CxfRsProducer.java:103) >>> at >>> org.apache.camel.impl.SynchronousDelegateProducer.process(SynchronousDelegateProducer.java:62) >>> at >>> org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61) >>> at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:145) >>> at >>> org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77) >>> at >>> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:541) >>> at >>> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:198) >>> at >>> org.apache.camel.processor.ChoiceProcessor.process(ChoiceProcessor.java:117) >>> at >>> org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77) >>> at >>> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:541) >>> at >>> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:198) >>> at org.apache.camel.processor.Pipeline.process(Pipeline.java:120) >>> at org.apache.camel.processor.Pipeline.process(Pipeline.java:83) >>> at >>> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:198) >>> at >>> org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:97) >>> at >>> org.apache.camel.component.cxf.jaxrs.CxfRsInvoker.syncInvoke(CxfRsInvoker.java:139) >>> at >>> org.apache.camel.component.cxf.jaxrs.CxfRsInvoker.performInvocation(CxfRsInvoker.java:72) >>> >>> >>> If the queryparam is set with value that is not null the route works >>> and calling the service consumer directly without adding "id" it works >>> as well (cxfrs:http://localhost:8080/tua-kodtar/rest).... >>> If I want to proxy the request getting NullPointerException. >>> env: WildFly-Camel 4.9.0 >>> >>> Thanks for your help! >>> Topicfun >>
