Hi
On 18/09/12 16:45, Sergey Beryozkin wrote:
Hi
On 18/09/12 11:03, SoulSpirit wrote:
Hello, I'm trying to implement a simple JAX-RS client passing a cusom
bean as
parameter, which contains an enum field:
class Person{
private String name;
private Title title;
...
}
enum Title{
MR,
MS;
}
Server-side the implementation is like:
@Path("/helloWorld")
@Produces("text/plain")
public class HelloWorldServiceImpl implements HelloWorldService{
@GET
@Path("/personQuery")
public String sayHelloTo( @QueryParam("") Person person ){
return "hello " + person.getTitle().getValue() + " " + person.getName();
}
}
Through an HTTP GET, the service works as expected by calling it this
way:
http://localhost:8080/helloWorld/personQuery?name=name&title=MR
I've then tried to implement a proxy client:
Person person = new Person();
person.setTitle( Title.MR );
person.setName( "name" );
HelloWorldService service = JAXRSClientFactory.create(
"http://localhost:8080/";, HelloWorldService.class );
String result = service.sayHelloTo( person );
But running it I get an exception when CXF tries (oddly) to create a new
instance of my enum:
java.lang.InstantiationException: model.Title
at java.lang.Class.newInstance0(Class.java:357)
at java.lang.Class.newInstance(Class.java:325)
at
org.apache.cxf.jaxrs.utils.InjectionUtils.handleBean(InjectionUtils.java:457)
I've run a test and I think the exception is caused simply because
'model.Title' is either package protected or private and hence the
actual Person bean can not be instantiated.
That said, there is a bug in the client code anyway in that it 'ignores'
enum properties, when populating the request properties. I've fixed that:
https://issues.apache.org/jira/browse/CXF-4514
you can see the actual changes in the Activity tab
Cheers, Sergey
Thanks, Sergey
at
org.apache.cxf.jaxrs.utils.InjectionUtils.handleBean(InjectionUtils.java:550)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.readQueryString(JAXRSUtils.java:959)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.createHttpParameterValue(JAXRSUtils.java:657)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameter(JAXRSUtils.java:625)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameters(JAXRSUtils.java:578)
at
org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.processRequest(JAXRSInInterceptor.java:238)
at
org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.handleMessage(JAXRSInInterceptor.java:89)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:262)
at
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
at
org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:211)
at
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:213)
at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:154)
at
org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:130)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:221)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:146)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:197)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
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:298)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:722)
I got the stacktrace by debugging
org.apache.cxf.jaxrs.utils.InjectionUtils,
since the catch ignores the oiginating exception while logging a generic
error (by the way, this behavior is very questionable...).
It seems like InjectionUtils doesn't handle well enums, but perhaps I'm
missing something...
Oh, I'm running apache-cxf-2.6.2.
I think it is a bug to do with extracting bean values at the point of
building the request URI - the code does not understand how to handle
enums - will get that fixed, in meantime, please try WebClient...
thanks, Sergey
Thank you for any suggestion.
--
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--
Sergey Beryozkin
Talend Community Coders
http://coders.talend.com/
Blog: http://sberyozkin.blogspot.com
