Hi,
On Tue, Jul 12, 2011 at 5:11 PM, KARR, DAVID (ATTSI) <[email protected]> wrote:
>> -----Original Message-----
>> From: Sergey Beryozkin [mailto:[email protected]]
>> Sent: Tuesday, July 12, 2011 8:57 AM
>> To: [email protected]
>> Subject: Re: Unit test returning json fails to parse response
>>
>> Hi David
>>
>> On Tue, Jul 12, 2011 at 4:28 PM, KARR, DAVID (ATTSI) <[email protected]>
>> wrote:
>> > I'm building a service using CXF 2.4.1 by reusing most of the setup
>> of a project that was using CXF 2.3.2. The first project was using
>> Jackson, but I'm going to try using Jettison for this.
>> >
>> > My first unit test method uses the default of xml, and that parses
>> the response just fine. The second method uses the ".json" extension,
>> and I see in the console output that it returned a Jettison-formatted
>> JSON response (it had the namespace prefix on the element name), but it
>> just said this (class name changed):
>> >
>> > Jul 12, 2011 8:12:15 AM org.apache.cxf.jaxrs.client.AbstractClient
>> reportMessageHandlerProblem
>> > SEVERE: .Problem with reading the response message, class : class
>> mypackage.Myclass, ContentType : application/json.
>> >
>>
>> In this case you should get ClientWebApplicationException thrown
>> containing the cause, can you update the code and catch it ? The
>> exception is coming from the reader, I'm wondering if it's default
>> JSON provider or not. JAXB provider is ordered first in 2.4.1, so
>> without WebClient explicitly specifying accept type, it may be
>> interfering given that MyClass is presumably a JAXB bean
>
> The stack trace follows this. It looks like I need to set up a namespace
> mapping in my factory, and in my client, and probably in my Spring context
> also.
>
> org.apache.cxf.jaxrs.client.ClientWebApplicationException: .Problem with
> reading the response message, class : class
> com.att.clarity.constellation.domain.Projects, ContentType : application/json.
<snip/>
> Caused by: javax.ws.rs.WebApplicationException: java.lang.NullPointerException
> at
> org.apache.cxf.jaxrs.provider.JSONProvider.readFrom(JSONProvider.java:217)
> at
> org.apache.cxf.jaxrs.client.AbstractClient.readBody(AbstractClient.java:435)
> ... 32 more
> Caused by: java.lang.NullPointerException
> at org.codehaus.jettison.Node.getNamespaceURI(Node.java:94)
> at
> org.codehaus.jettison.AbstractXMLStreamReader.getNamespaceURI(AbstractXMLStreamReader.java:133)
> at
> org.apache.cxf.staxutils.DepthXMLStreamReader.getNamespaceURI(DepthXMLStreamReader.java:135)
> at
I don't recall seeing such NPEs in Jettison - I'll save this stack
trace till I get a chance to fix that at jettison level.
If you get JSON content with prefixes coming in then you need to
explicitly register JSONProvider during WebClient.create(...), and set
a namespaceMap property on it (key - prefix, value - namespace).
Other approach in 2.4.1 is to configure the *server* provider to drop
namespaces completely (ignoreNamespaces property) and use
StaxTransformFeature wildcards on the client side to add expected
namespaces
Cheers, Sergey
com.sun.xml.bind.v2.runtime.unmarshaller.StAXStreamConnector.handleStartElement(StAXStreamConnector.java:232)
> at
> com.sun.xml.bind.v2.runtime.unmarshaller.StAXStreamConnector.bridge(StAXStreamConnector.java:176)
> at
> com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:360)
> at
> com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:332)
> at
> org.apache.cxf.jaxrs.provider.JSONProvider.readFrom(JSONProvider.java:197)
> ... 33 more
>
>>
>> Cheers, Sergey
>>
>> > I'm referencing "cxf-rt-transports-http" and "cxf-rt-frontend-jaxrs"
>> in my POM.
>> >
>> > The following is in my unit test class (with some class names and
>> paths changed):
>> > ------------------------
>> > @BeforeClass
>> > public static void startServer() {
>> > setController(new StuffController());
>> > getController().init();
>> >
>> > ServerFactory.create(getController(),
>> TestHelper.BASE_SERVICE_URI);
>> > }
>> >
>> > @Test
>> > public void testBasic() throws Exception {
>> > getController().setService(service);
>> >
>> > WebClient client =
>> WebClient.create(TestHelper.BASE_SERVICE_URI).path("/stuff");
>> >
>> > Stuffs mockStuffs = new Stuffs();
>> > when(service.getStuff()).thenReturn(mockStuffs);
>> >
>> > Stuffs stuffs = client.get(Stuffs.class);
>> > assertThat(stuffs).isNotNull();
>> > }
>> >
>> > @Test
>> > public void testBasicJson() throws Exception {
>> > getController().setService(service);
>> >
>> > WebClient client =
>> WebClient.create(TestHelper.BASE_SERVICE_URI).path("/stuff.json");
>> >
>> > Stuffs mockStuffs = new Stuffs();
>> > when(service.getStuff()).thenReturn(mockStuffs);
>> >
>> > Stuffs stuffs = client.get(Stuffs.class);
>> > assertThat(stuffs).isNotNull();
>> > }
>> > ---------------
>> >
>> > This is my ServerFactory class:
>> > ----------------------
>> > public class ServerFactory {
>> > public static void create(Object serviceBean, String uri) {
>> > JAXRSServerFactoryBean sf = new JAXRSServerFactoryBean();
>> >
>> > BindingFactoryManager manager =
>> sf.getBus().getExtension(BindingFactoryManager.class);
>> > JAXRSBindingFactory factory = new JAXRSBindingFactory();
>> > factory.setBus(sf.getBus());
>> >
>> manager.registerBindingFactory(JAXRSBindingFactory.JAXRS_BINDING_ID,
>> factory);
>> >
>> > Map<Object, Object> extensionsMap = new HashMap<Object,
>> Object>();
>> > extensionsMap.put("json", "application/json");
>> > extensionsMap.put("xml", "application/xml");
>> >
>> > sf.setExtensionMappings(extensionsMap);
>> >
>> > sf.setServiceBean(serviceBean);
>> > sf.getInInterceptors().add(new LoggingInInterceptor());
>> > sf.getOutInterceptors().add(new LoggingOutInterceptor());
>> >
>> > sf.setAddress(uri);
>> >
>> > sf.create();
>> > }
>> > }
>> > --------------------
>> >
>>
>>
>>
>> --
>> Sergey Beryozkin
>>
>> http://sberyozkin.blogspot.com
>> Talend - http://www.talend.com
>
