Hi
Right now it is
java.lang.NoClassDefFoundError:
org/eclipse/persistence/jaxb/JAXBContextFactory
but after you fix that, please further simplify the test case and simply
have a single Resource bean, that will definitely keep things simple :-)
Cheers, Sergey
On 22/02/13 14:32, diana allam wrote:
Hello Sergey,
Here is my test on a simple GET service example in a project with interface
+ implementation classes:
@XmlSeeAlso({MyObjectFactory.class})
@Path("/service/")
public interface ServiceInterface {
@GET
@Path("/resources/{id}/")
public Resource getResource(@PathParam("id") int id);
}
-------------------------------------------------------------------------------------
@XmlSeeAlso({MyObjectFactory.class})
@Path("/service/")
public class Service implements ServiceInterface {
Map<Integer, Resource> resources= new HashMap<Integer, Resource>();
public Service(){
Resource r = new ResourceImpl1();
this.resources.put(r.getId(), r);
}
@GET
@Path("/resources/{id}/")
public Resource getResource(@PathParam("id") int id) {
System.out.println(this.resources.get(id).printInfo() );
return this.resources.get(id);
}
}
----------------------------------------------------------------------------------
@XmlRegistry
public class MyObjectFactory {
public MyObjectFactory() {
}
public Resource createResource() {
// return createInstance(Resource.class);
return createInstance(Resource.class);
//return new ResourceImpl1();
}
private<T> T createInstance(Class<T> anInterface) {
return (T) Proxy.newProxyInstance(anInterface.getClassLoader(), new
Class[] {anInterface}, new InterfaceInvocationHandler());
}
private static class InterfaceInvocationHandler implements
InvocationHandler {
private Map<String, Object> values = new HashMap<String, Object>();
public Object invoke(Object proxy, Method method, Object[] args)
throws Throwable {
String methodName = method.getName();
if(methodName.startsWith("get")) {
return values.get(methodName.substring(3));
}
else {
values.put(methodName.substring(3), args[0]);
return null;
}
}
}
}
-------------------------------------------------------------------------------------------------
@XmlSeeAlso({ResourceImpl1.class, ResourceImpl2.class,
MyObjectFactory.class})
@XmlRootElement(name = "Resource")
@XmlType(propOrder={"name", "info"})
public interface Resource {
public int getId();
public void setId(int id);
public String getName();
public void setName(String name);
public String printInfo();
}
----------------------------------------------------------------------------------
@XmlRootElement(name = "ResourceImpl1")
public class ResourceImpl1 implements Resource{
private int id;
private String name;
public ResourceImpl1(int id, String name){
this.name=name;
}
public ResourceImpl1(){
this(0, "Impl1-default");
}
public String getName() {
// TODO Auto-generated method stub
return this.name;
}
public void setName(String name) {
// TODO Auto-generated method stub
this.name=name;
}
public String printInfo() {
// TODO Auto-generated method stub
return "This is a ResourceImpl1, id: " + this.id + "name: " +
this.name;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}
-------------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xmlns:jaxrs="
http://cxf.apache.org/jaxrs";
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://cxf.apache.org/jaxrs
http://cxf.apache.org/schemas/jaxrs.xsd";>
<import resource="classpath:META-INF/cxf/cxf.xml" />
<import resource="classpath:META-INF/cxf/cxf-servlet.xml" />
<jaxrs:server id="test" address="/">
<jaxrs:serviceBeans>
<ref bean="myWebService" />
</jaxrs:serviceBeans>
<jaxrs:providers>
<ref bean="MOXYProvider" />
</jaxrs:providers>
</jaxrs:server>
<bean id="MOXYProvider" class="commun.MoxyJaxbContextResolver" />
<bean id="myWebService" class="server.Service" />
</beans>
---------------------------------------------------------------------------------
@Provider
public class MoxyJaxbContextResolver implements
ContextResolver<JAXBContext> {
public JAXBContext getContext(Class<?> type) {
try {
JAXBContext jc = JAXBContextFactory.createContext(new Class[]
{Resource.class}, null);
return jc;
} catch (JAXBException e) {
e.printStackTrace();
}
return null;
}
}
----------------------------------------------------------------------------
I get the following error when I try to call my get method from the
browser, by typing:
http://localhost:8080/rs-testServiceWithInterfaces1/service/resources/0
--------------------------
XML Parsing Error: syntax error
Location:
http://localhost:8080/rs-testServiceWithInterfaces1/service/resources/0
Line Number 1, Column 1:Error serializing the response, please check the
server logs, response class : ResourceImpl1
---------------------------
At the server, I get the following exceptions:
java.lang.NoClassDefFoundError:
org/eclipse/persistence/jaxb/JAXBContextFactory
at
commun.MoxyJaxbContextResolver.getContext(MoxyJaxbContextResolver.java:16)
at
commun.MoxyJaxbContextResolver.getContext(MoxyJaxbContextResolver.java:1)
at
org.apache.cxf.jaxrs.provider.AbstractJAXBProvider.getJAXBContext(AbstractJAXBProvider.java:362)
at
org.apache.cxf.jaxrs.provider.AbstractJAXBProvider.createMarshaller(AbstractJAXBProvider.java:476)
at
org.apache.cxf.jaxrs.provider.JAXBElementProvider.marshal(JAXBElementProvider.java:349)
at
org.apache.cxf.jaxrs.provider.JAXBElementProvider.writeTo(JAXBElementProvider.java:237)
at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.serializeMessage(JAXRSOutInterceptor.java:257)
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:263)
at
org.apache.cxf.interceptor.OutgoingChainInterceptor.handleMessage(OutgoingChainInterceptor.java:77)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:263)
at
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
at
org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:206)
at
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:218)
at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:161)
at
org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:114)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:184)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:112)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:163)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:964)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.ClassNotFoundException:
org.eclipse.persistence.jaxb.JAXBContextFactory
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1678)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1523)
... 37 more
Feb 22, 2013 3:24:42 PM
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor
writeResponseErrorMessage
WARNING: Error serializing the response, please check the server logs,
response class : ResourceImpl1.
Regards,
Diana
On Thu, Feb 21, 2013 at 11:17 AM, Sergey Beryozkin<[email protected]>wrote:
Hi Diana,
On 21/02/13 10:05, diana allam wrote:
Hello,
I would like just to add more information about the utility of using
interfaces in cxf without implementation classes.
For my previous example about Resource, ResourceImpl1 and ResourceImpl2,
my
proposed solution by using an adapter of Resource class in order to allow
JAXB to use interfaces is not a very nice solution.
It will be nice if for example I define three interfaces, Resource,
Resource1 and Resource2, while Resource1 and Resource2 extends Resource.
That way, by using MOXY, I can avoid the use of adapters and I can
distinguish the treatment of messages at reception according to Resource1
or Resource2 types. This approach is very similar to what is actually
possible in cxf when for example a subclass instance is sent to a service
waiting a superclass of it.
Can somebody help me to find the way to do it in cxf please?
I'd like to help but at the moment I'm still not sure where exactly the
problem is :-). I'd like to propose to simplify the setup a bit in order to
narrow down the issue.
Can you please type a single root resource, with a single @GET method, the
way you'd expect it to be in your project (interface + implementation, or
just implementation) and also type a very basic JAXB Bean class, with
@XMLRootElement, register Moxy-aware ContextResolver and access this method
from a browser - will you get it working ?
If yes - try the same with a CXF RS code, just make sure you also register
Moxy-aware ContextResolver on the client side, and try to read the response
there - this should work too.
Can you try the above first please and if that works - then lets move to
your current issue, if not - lets try to figure out first why the simple
case does not work
Cheers, Sergey
Regards,
Diana
On Wed, Feb 20, 2013 at 6:22 PM, diana allam<[email protected]>
wrote:
thanks for your fast reply.
I tested it because actually I am interested in deploying services with
an
interface type as input or output.
I already tested on cxf how to do it by using implementation classes, for
example, I defined a Resource interface and two implementations
ResourceImpl1 and ResourceImpl2 such that all my REST methods are
declared
with a Resource type and I consider to differentiate the treatment at a
reception of a ResourceImpl1 or ResourceImpl2. In order to do that I
added
the following two annotations to my Resource interface, and my
AdaptedResource class (which is the adapted java instance for
serialization
and deserialization) contains an attribute which refers to the
corresponding implementation (ResourceImpl1 or ResourceImpl2).
------------------------------**------------------------------**
------------------------
@XmlSeeAlso({ResourceImpl1.**class, ResourceImpl2.class})
@XmlJavaTypeAdapter(**MyResourceAdapter.class)
public interface Resource {...}
------------------------------**------------------------------**
------------------------
By curiosity, I tested MOXY without implementation classes and it works,
but not for cxf, I didn't understand the problem
On Wed, Feb 20, 2013 at 5:59 PM, Sergey Beryozkin<[email protected]**
wrote:
Hi
The appears to be some issue with your invocation handler, why do you
need it all ? If users had to write InvocationHandlers in order to be
able
to work with CXF RS client runtime then it would not be ideal at all :-)
Thanks, Sergey
On 20/02/13 16:49, allam-di wrote:
Hello all,
I would like to use MOXY in order to handle interfaces as input
arguments on
my service methods.
First, I tested MOXY data binding with interfaces as it is given in the
following blog:
http://blog.bdoughan.com/2010/****07/moxy-jaxb-map-interfaces-****<http://blog.bdoughan.com/2010/**07/moxy-jaxb-map-interfaces-**>
to-xml.html<http://blog.**bdoughan.com/2010/07/moxy-**
jaxb-map-interfaces-to-xml.**html<http://blog.bdoughan.com/2010/07/moxy-jaxb-map-interfaces-to-xml.html>
It works oK for me, thus I can serialize and deserialize messages by
declaring a service method with an interface argument, without defining
any
implementation classes of this interface.
In order to do a similar think integrated to cxf, I followed the
discussion
at this link:
http://cxf.547215.n5.nabble.****com/How-to-configure-CXF-to-**
use-different-****JAXBContextFactory-td5281773.****html<
http://cxf.547215.n5.**nabble.com/How-to-configure-**
CXF-to-use-different-**JAXBContextFactory-td5281773.**html<http://cxf.547215.n5.nabble.com/How-to-configure-CXF-to-use-different-JAXBContextFactory-td5281773.html>
Here is my ContextResolver Class:
------------------------------****-----------
package project;
@Provider
public class MyContextResolver implements ContextResolver<JAXBContext>
{
private JAXBContext jc;
public MyContextResolver() {
try {
jc = JAXBContext.newInstance(****MyObjectFactory.class);
} catch(JAXBException e) {
throw new RuntimeException(e);
}
}
public JAXBContext getContext(Class<?> type) {
try {
jc = JAXBContextFactory.****createContext(new
Class[]
{MyObjectFactory.class}, null);
return jc;
} catch (JAXBException e) {
e.printStackTrace();
}
return null;
}
}
Here is my ObjectFactory class:
------------------------------****-----------
@XmlRegistry
public class MyObjectFactory {
public Customer createCustomer() {
return createInstance(Customer.class)****;
}
...
private<T> T createInstance(Class<T> anInterface) {
return (T) Proxy.newProxyInstance(****
anInterface.getClassLoader(),
new
Class[] {anInterface}, new InterfaceInvocationHandler());
}
private static class InterfaceInvocationHandler implements
InvocationHandler {
private Map<String, Object> values = new HashMap<String,
Object>();
public Object invoke(Object proxy, Method method, Object[]
args)
throws Throwable {
String methodName = method.getName();
if(methodName.startsWith("get"****)) {
return values.get(methodName.****substring(3));
}
else {
values.put(methodName.****substring(3), args[0]);
return null;
}
}
}
}
Here is my bean.xml file:
------------------------------****-----
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.**springfram**ework.org/schema/**beans<http://springframework.org/schema/**beans>
<http:**//www.springframework.org/**schema/beans<http://www.springframework.org/schema/beans>
"
xmlns:xsi="http://www.w3.org/****2001/XMLSchema-instance<http://www.w3.org/**2001/XMLSchema-instance>
<http:**//www.w3.org/2001/XMLSchema-**instance<http://www.w3.org/2001/XMLSchema-instance>
"
xmlns:jaxrs="http://cxf.**apac**he.org/jaxrs<http://apache.org/jaxrs>
<http://cxf.**apache.org/jaxrs<http://cxf.apache.org/jaxrs>>
"
xsi:schemaLocation="
http://www.springframework.****org/schema/beans<http://www.**
springframework.org/schema/**beans<http://www.springframework.org/schema/beans>
http://www.springframework.****org/schema/beans/spring-beans.****xsd<
http://www.**springframework.org/schema/**beans/spring-beans.xsd<http://www.springframework.org/schema/beans/spring-beans.xsd>
http://cxf.apache.org/jaxrs
http://cxf.apache.org/schemas/****jaxrs.xsd<http://cxf.apache.org/schemas/**jaxrs.xsd>
<http://cxf.apache.**org/schemas/jaxrs.xsd<http://cxf.apache.org/schemas/jaxrs.xsd>
">
<import resource="classpath:META-INF/****cxf/cxf.xml" />
<import resource="classpath:META-INF/****cxf/cxf-servlet.xml"
/>
<jaxrs:server id="test" address="/">
<jaxrs:serviceBeans>
<ref bean="myWebService" />
</jaxrs:serviceBeans>
<jaxrs:providers>
<ref bean="MOXYProvider" />
</jaxrs:providers>
</jaxrs:server>
<bean id="MOXYProvider" class="project.****MyContextResolver"
/>
<bean id="myWebService" class="project.Service" />
</beans>
Here is a the constructor of my service class:
------------------------------****----------------------
public Service(){
ObjectFactory objectFactory = new ObjectFactory();
Customer c = objectFactory.createCustomer()****;
c.setName("defaultName");
Address address = objectFactory.createAddress();
address.setCity("****defaultAddress");
address.setStreet("****defaultStreet");
c.setAddress(address);
this.resources.put(c.getName()****, s);
}
and here is my GET method:
@GET
@Path("/resources/{name}/")
public Customer getCustomer(@PathParam("name") String name) {
return this.resources.get(name);
}
When I call my service, I get the following error:
Exception in thread "main" Status : 500
Headers :
Date : Wed, 20 Feb 2013 16:02:30 GMT
Content-Length : 65
Content-Type : text/plain
Connection : close
Server : Apache-Coyote/1.1
Error message :
No message body writer has been found for response class $Proxy5.
at
org.apache.cxf.jaxrs.client.****ClientProxyImpl.checkResponse(****
ClientProxyImpl.java:250)
at
org.apache.cxf.jaxrs.client.****ClientProxyImpl.****handleResponse(**
ClientProxyImpl.java:517)
at
org.apache.cxf.jaxrs.client.****ClientProxyImpl.****
doChainedInvocation(**
ClientProxyImpl.java:487)
at
org.apache.cxf.jaxrs.client.****ClientProxyImpl.invoke(**
ClientProxyImpl.java:188)
at $Proxy18.getResource(Unknown Source)
at project.Client.main(Client.****java:35)
Any idea about this error please?
Regards,
Diana
--
View this message in context: http://cxf.547215.n5.nabble.**
com/How-to-configure-cxf-to-****use-MOXY-Jaxb-for-RESTful-****
tp5723506.html<http://cxf.**547215.n5.nabble.com/How-to-**
configure-cxf-to-use-MOXY-**Jaxb-for-RESTful-tp5723506.**html<http://cxf.547215.n5.nabble.com/How-to-configure-cxf-to-use-MOXY-Jaxb-for-RESTful-tp5723506.html>
Sent from the cxf-user mailing list archive at Nabble.com.
--
Sergey Beryozkin
Talend Community Coders
http://coders.talend.com/
Blog: http://sberyozkin.blogspot.com
--
Sergey Beryozkin
Talend Community Coders
http://coders.talend.com/
Blog: http://sberyozkin.blogspot.com
