I have a simple layer that proxies a WCM and the Service Endpoints. Since it
is easier to deal with JSON, I was going to provide a thin layer where the
WCM could utilize JSON to submit requests to JAX-RS and internally I would
invoke SOAP/HTTP service calls. So CXF(JAX-RS) for receiving requests and
CXF(JAX-WS) for making the requests.
It all appears to work as I am seeing the service message go out, and I see
the service message come back in, the data binding is working, and I am able
to log the object model before JAX-RS returns it. But when JAX-RS returns
it...the IOUtils throws an NPE.
Am I missing something in configuring the JAX-RS Response as json?
Thanks...jay
JAX-RS Method
--------------------------------
@GET
@Path("/servicecode/{id}")
@Produces( { "application/json", "application/xml" })
@Consumes("text/plain")
public Object getSponsorLookupCodes(@PathParam("id") String serviceCode)
{
System.out.println("serviceCode - " + serviceCode);
XStream xstream = new XStream(new JsonHierarchicalStreamDriver());
xstream.alias(ServiceCode.class.getSimpleName(), ServiceCode.class);
ServiceCode code =
serviceCodeLookupBusinessService.getServiceCode(serviceCode);
System.out.println("code - " + code);
System.out.println("json code - " + xstream.toXML(code));
return xstream.toXML(code);
}
JAX-RS Server Configuration
--------------------------------
<jaxrs:server id="wcmResourceApps" address="/">
<jaxrs:extensionMappings>
<entry key="json" value="application/json"/>
<entry key="xml" value="application/xml"/>
</jaxrs:extensionMappings>
<jaxrs:serviceBeans>
<ref bean="codeLookupBusinessResource"/>
</jaxrs:serviceBeans>
</jaxrs:server>
JAX-WS Successful Send
--------------------------------
ID: 3
Address: https://foo.com/CodeLookupBusinessService
Encoding: UTF-8
Content-Type: text/xml
.......
Payload: <soap:Envelope
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/";><soap:Body><ns3:getCode
xmlns:ns2="http://foo.com/model/cas";
xmlns:ns3="http://foo.com/services/cas";><ns3:Code>12345</ns3:Code></ns3:getCode></soap:Body></soap:Envelope>
--------------------------------------
Apr 25, 2011 11:10:32 AM
org.apache.cxf.interceptor.AbstractLoggingInterceptor log
INFO: Inbound Message
----------------------------
JAX-WS Successful Receive
--------------------------------
ID: 3
Response-Code: 200
Encoding: UTF-8
Content-Type: text/xml; charset=UTF-8
.......
Payload: <soap:Envelope
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/";><soap:Body><ns3:getCodeResponse
xmlns:ns2="http://foo.com/model/cas";
xmlns:ns3="http://foo.com/services/cas";><ns2:Code><ns2:EffectiveDate>20050101</ns2:EffectiveDate><ns2:ExpirationDate>99991231</ns2:ExpirationDate><ns2:Id>12345</ns2:Id></ns2:Code></ns3:getCodeResponse></soap:Body></soap:Envelope>
--------------------------------------
System.out.println Statements
--------------------------------
code - com.foo.Code@10b2839f[
effectiveDate=20050101
expirationDate=99991231
fromAgeLimit=<null>
id=12345
toAgeLimit=<null>
]
json code - {"ServiceCode": {
"effectiveDate": "20050101",
"expirationDate": "99991231",
"id": "12345"
}}
JAX-RS NullPointerException
--------------------------------
java.lang.NullPointerException
at org.apache.cxf.helpers.IOUtils.copy(IOUtils.java:126)
at org.apache.cxf.helpers.IOUtils.copy(IOUtils.java:103)
at
org.apache.cxf.io.DelegatingInputStream.cacheInput(DelegatingInputStream.java:54)
at
org.apache.cxf.transport.http.AbstractHTTPDestination$1.cacheInput(AbstractHTTPDestination.java:305)
at
org.apache.cxf.transport.http.AbstractHTTPDestination.cacheInput(AbstractHTTPDestination.java:519)
at
org.apache.cxf.transport.http.AbstractHTTPDestination.flushHeaders(AbstractHTTPDestination.java:531)
at
org.apache.cxf.transport.http.AbstractHTTPDestination.flushHeaders(AbstractHTTPDestination.java:524)
at
org.apache.cxf.transport.http.AbstractHTTPDestination$WrappedOutputStream.onFirstWrite(AbstractHTTPDestination.java:659)
at
org.apache.cxf.io.AbstractWrappedOutputStream.write(AbstractWrappedOutputStream.java:42)
at
org.apache.cxf.io.AbstractWrappedOutputStream.write(AbstractWrappedOutputStream.java:55)
at
org.apache.cxf.jaxrs.provider.PrimitiveTextProvider.writeTo(PrimitiveTextProvider.java:70)
at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.serializeMessage(JAXRSOutInterceptor.java:256)
at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.processResponse(JAXRSOutInterceptor.java:144)
at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.handleMessage(JAXRSOutInterceptor.java:83)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:255)
at
org.apache.cxf.interceptor.OutgoingChainInterceptor.handleMessage(OutgoingChainInterceptor.java:77)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:255)
at
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:113)
at
org.apache.cxf.transport.servlet.ServletDestination.invoke(ServletDestination.java:97)
at
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:461)
at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:149)
at
org.apache.cxf.transport.servlet.AbstractCXFServlet.invoke(AbstractCXFServlet.java:148)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:179)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:108)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:159)
at
com.day.j2ee.servletengine.ServletRuntimeEnvironment.service(ServletRuntimeEnvironment.java:228)
at
com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:315)
at
com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:334)
at
com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:378)
at
com.day.j2ee.servletengine.ServletHandlerImpl.execute(ServletHandlerImpl.java:313)
at
com.day.j2ee.servletengine.DefaultThreadPool$DequeueThread.run(DefaultThreadPool.java:134)
at java.lang.Thread.run(Thread.java:619)
Apr 25, 2011 11:10:32 AM
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor
writeResponseErrorMessage
WARNING: Error serializing the response, please check the server logs,
response class : String.
Apr 25, 2011 11:10:32 AM org.apache.cxf.phase.PhaseInterceptorChain
doDefaultLogging
WARNING: Interceptor for
{http://facade.apps.foo.com/}CodeLookupBusinessResource has thrown
exception, unwinding now
java.lang.NullPointerException
at org.apache.cxf.helpers.IOUtils.copy(IOUtils.java:126)
at org.apache.cxf.helpers.IOUtils.copy(IOUtils.java:103)
at
org.apache.cxf.io.DelegatingInputStream.cacheInput(DelegatingInputStream.java:54)
at
org.apache.cxf.transport.http.AbstractHTTPDestination$1.cacheInput(AbstractHTTPDestination.java:305)
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