Integrating Spring 3 + GenericDAO (Don't repeat the DAO!) + CXF JAX-RS (JAXB
Databinding) with a Generic Service Interface
---------------------------------------------------------------------------------------------------------------------------
Key: CXF-3022
URL: https://issues.apache.org/jira/browse/CXF-3022
Project: CXF
Issue Type: Bug
Components: JAXB Databinding
Affects Versions: 2.2.10
Environment: Spring 3.03, CXF 2.2.10, Apache Tomcat 6.0.26...
Reporter: Ivan Vitoria
Priority: Blocker
Hello everyone,
I'm trying to use a generic interface implementation as a JAX-RS service in
order to accomplish basic rest operations for all model data (in the same way
that the pattern
[GenericDAO|http://www.ibm.com/developerworks/java/library/j-genericdao.html].
The interface:
{code:title=IRestService.java|borderStyle=solid}
public interface IRestService<T, PK extends Long>
{
T getById(PK id);
PK add(T instance);
}
{code}
The generic service implementation:
{code:title=GenericRestServiceImpl.java|borderStyle=solid}
public class GenericRestServiceImpl<T, PK extends Long> implements
IRestService<T, PK>
{
private IGenericDAO<T, PK> iDAO;
public void setiDAO(IGenericDAO<T, PK> iDAO)
{
this.iDAO = iDAO;
}
public T getById(PK id)
{
return iDAO.read(id);
}
public PK add(T instance)
{
return iDAO.create(instance);
}
{code}
The simple POJO I want to send and receive:
{code:title=MobilityUser.java|borderStyle=solid}
@XmlRootElement(name="MobilityUser")
public class MobilityUser implements Serializable
{
private Long id;
private String login;
private String nif;
public MobilityUser()
{
}
// Setters & getters omitted...
}
{code}
The most relevant section of Spring context configuration
(applicationContext.xml):
{code:xml}
<!-- DAO Configuration (SessionFactory, DataSource, etc. omitted) -->
<bean id="abstractDAO"
class="org.springframework.aop.framework.ProxyFactoryBean" abstract="true" />
<bean id="abstractDaoTarget"
class="com.ica.mobility.persistence.dao.genericdao.GenericDAOHibernate"
abstract="true">
<property name="sessionFactory">
<ref bean="mobilitySessionFactory"/>
</property>
</bean>
<bean id="userDAO" parent="abstractDAO">
<property name="proxyInterfaces">
<value>com.ica.mobility.persistence.dao.genericdao.IGenericDAO</value>
</property>
<property name="target">
<bean id="userBean" parent="abstractDaoTarget">
<constructor-arg>
<value>com.ica.mobility.model.bean.MobilityUser</value>
</constructor-arg>
</bean>
</property>
</bean>
<!-- CXF Configuration -->
<jaxrs:server id="genericServer"
modelRef="classpath:/WEB-INF/model/resources.xml" abstract="true">
<jaxrs:features>
<cxf:logging/>
</jaxrs:features>
</jaxrs:server>
<bean id="userServer" parent="genericServer">
<property name="address" value="/user" />
<property name="serviceBeans">
<bean id="userService"
class="com.ica.mobility.mobile.service.GenericRestServiceImpl">
<property name="iDAO">
<ref bean="userDAO"></ref>
</property>
</bean>
</property>
</bean>
{code}
The JAX-RS model (resources.xml):
{code:xml}
<model xmlns="http://cxf.apache.org/jaxrs";>
<resource name="com.ica.mobility.mobile.service.IRestService" path="/"
consumesType="application/xml" producesType="application/xml">
<operation name="getById" verb="GET">
<param name="id" type="QUERY"/>
</operation>
<operation name="add" verb="POST" path="/add">
<param name="instance" type="REQUEST_BODY" />
</operation>
</resource>
</model>
{code}
There is no problem with GET operation (getById method). However, a runtime
exception (NullPointerException) occurs when a POST request is performed.
Server log with StackTrace:
{code:title=server log|borderStyle=solid}
04-oct-2010 11:43:17 org.apache.cxf.interceptor.LoggingInInterceptor logging
INFO: Inbound Message
----------------------------
ID: 3
Address: /MobilityServer/mobile/user/add
Encoding: ISO-8859-1
Content-Type: application/xml
Headers: {content-type=[application/xml], host=[localhost:8080],
Content-Length=[90], user-agent=[Jakarta Commons-HttpClient/3.1],
accept-encoding=[gzip,deflate], Content-Type=[application/xml]}
Payload: <MobilityUser>
<id>5</id>
<login>Login</login>
<nif>Nif</nif>
</MobilityUser>
--------------------------------------
Listening for transport dt_shmem at address: tomcat_shared_memory_id
04-oct-2010 11:46:52 org.apache.cxf.phase.PhaseInterceptorChain doDefaultLogging
ADVERTENCIA: Interceptor for
{http://service.mobile.mobility.ica.com/}IRestService has thrown exception,
unwinding now
java.lang.NullPointerException
at java.lang.Class.isAssignableFrom(Native Method)
at
org.apache.cxf.jaxrs.utils.InjectionUtils.isSupportedCollectionOrArray(InjectionUtils.java:554)
at
org.apache.cxf.jaxrs.provider.JAXBElementProvider.isReadable(JAXBElementProvider.java:89)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.matchesReaderCriterias(ProviderFactory.java:457)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.chooseMessageReader(ProviderFactory.java:425)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.createMessageBodyReader(ProviderFactory.java:269)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.createMessageBodyReader(ProviderFactory.java:279)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.readFromMessageBody(JAXRSUtils.java:960)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameter(JAXRSUtils.java:575)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameters(JAXRSUtils.java:540)
at
com.ica.mobility.util.CustomInInterceptor.processRequest(CustomInInterceptor.java:242)
at
com.ica.mobility.util.CustomInInterceptor.handleMessage(CustomInInterceptor.java:77)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:244)
at
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:110)
at
org.apache.cxf.transport.servlet.ServletDestination.invoke(ServletDestination.java:98)
at
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:423)
at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:139)
at
org.apache.cxf.transport.servlet.AbstractCXFServlet.invoke(AbstractCXFServlet.java:142)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:179)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:103)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:159)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
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:619)
04-oct-2010 11:46:52 org.apache.cxf.phase.PhaseInterceptorChain doDefaultLogging
ADVERTENCIA: Interceptor for
{http://service.mobile.mobility.ica.com/}IRestService has thrown exception,
unwinding now
org.apache.cxf.interceptor.Fault
at
org.apache.cxf.interceptor.AbstractFaultChainInitiatorObserver.onMessage(AbstractFaultChainInitiatorObserver.java:67)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:293)
at
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:110)
at
org.apache.cxf.transport.servlet.ServletDestination.invoke(ServletDestination.java:98)
at
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:423)
at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:139)
at
org.apache.cxf.transport.servlet.AbstractCXFServlet.invoke(AbstractCXFServlet.java:142)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:179)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:103)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:159)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
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:619)
Caused by: java.lang.NullPointerException
at java.lang.Class.isAssignableFrom(Native Method)
at
org.apache.cxf.jaxrs.utils.InjectionUtils.isSupportedCollectionOrArray(InjectionUtils.java:554)
at
org.apache.cxf.jaxrs.provider.JAXBElementProvider.isReadable(JAXBElementProvider.java:89)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.matchesReaderCriterias(ProviderFactory.java:457)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.chooseMessageReader(ProviderFactory.java:425)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.createMessageBodyReader(ProviderFactory.java:269)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.createMessageBodyReader(ProviderFactory.java:279)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.readFromMessageBody(JAXRSUtils.java:960)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameter(JAXRSUtils.java:575)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameters(JAXRSUtils.java:540)
at
com.ica.mobility.util.CustomInInterceptor.processRequest(CustomInInterceptor.java:242)
at
com.ica.mobility.util.CustomInInterceptor.handleMessage(CustomInInterceptor.java:77)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:244)
... 28 more
04-oct-2010 11:46:52 org.apache.cxf.phase.PhaseInterceptorChain unwind
ADVERTENCIA: Exception in handleFault on interceptor
org.apache.cxf.binding.xml.interceptor.xmlfaultoutintercep...@d445e2
org.apache.cxf.interceptor.Fault
at
org.apache.cxf.interceptor.AbstractFaultChainInitiatorObserver.onMessage(AbstractFaultChainInitiatorObserver.java:67)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:293)
at
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:110)
at
org.apache.cxf.transport.servlet.ServletDestination.invoke(ServletDestination.java:98)
at
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:423)
at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:139)
at
org.apache.cxf.transport.servlet.AbstractCXFServlet.invoke(AbstractCXFServlet.java:142)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:179)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:103)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:159)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
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:619)
Caused by: java.lang.NullPointerException
at java.lang.Class.isAssignableFrom(Native Method)
at
org.apache.cxf.jaxrs.utils.InjectionUtils.isSupportedCollectionOrArray(InjectionUtils.java:554)
at
org.apache.cxf.jaxrs.provider.JAXBElementProvider.isReadable(JAXBElementProvider.java:89)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.matchesReaderCriterias(ProviderFactory.java:457)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.chooseMessageReader(ProviderFactory.java:425)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.createMessageBodyReader(ProviderFactory.java:269)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.createMessageBodyReader(ProviderFactory.java:279)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.readFromMessageBody(JAXRSUtils.java:960)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameter(JAXRSUtils.java:575)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameters(JAXRSUtils.java:540)
at
com.ica.mobility.util.CustomInInterceptor.processRequest(CustomInInterceptor.java:242)
at
com.ica.mobility.util.CustomInInterceptor.handleMessage(CustomInInterceptor.java:77)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:244)
... 28 more
04-oct-2010 11:46:52
org.apache.cxf.interceptor.AbstractFaultChainInitiatorObserver onMessage
GRAVE: Error occurred during error handling, give up!
org.apache.cxf.interceptor.Fault
at
org.apache.cxf.interceptor.AbstractFaultChainInitiatorObserver.onMessage(AbstractFaultChainInitiatorObserver.java:67)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:293)
at
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:110)
at
org.apache.cxf.transport.servlet.ServletDestination.invoke(ServletDestination.java:98)
at
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:423)
at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:139)
at
org.apache.cxf.transport.servlet.AbstractCXFServlet.invoke(AbstractCXFServlet.java:142)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:179)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:103)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:159)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
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:619)
Caused by: java.lang.NullPointerException
at java.lang.Class.isAssignableFrom(Native Method)
at
org.apache.cxf.jaxrs.utils.InjectionUtils.isSupportedCollectionOrArray(InjectionUtils.java:554)
at
org.apache.cxf.jaxrs.provider.JAXBElementProvider.isReadable(JAXBElementProvider.java:89)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.matchesReaderCriterias(ProviderFactory.java:457)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.chooseMessageReader(ProviderFactory.java:425)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.createMessageBodyReader(ProviderFactory.java:269)
at
org.apache.cxf.jaxrs.provider.ProviderFactory.createMessageBodyReader(ProviderFactory.java:279)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.readFromMessageBody(JAXRSUtils.java:960)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameter(JAXRSUtils.java:575)
at
org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameters(JAXRSUtils.java:540)
at
com.ica.mobility.util.CustomInInterceptor.processRequest(CustomInInterceptor.java:242)
at
com.ica.mobility.util.CustomInInterceptor.handleMessage(CustomInInterceptor.java:77)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:244)
... 28 more
{code}
I hope you have all the information you need.
Cheers,
Ivan
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