[jboss-user] [JBoss Seam] - Re: Data separation in multi tenant applications with seam

christian_zeidler do-not-reply at jboss.com
Thu May 31 15:08:00 EDT 2007


OK, so what I have dome is to create two managed-persistence-contexts in components.xml

 <core:managed-persistence-context 
  |     	name="standardEntityManager"
  |         auto-create="true"
  |         persistence-unit-jndi-name="java:/standardEntityManagerFactory">
  |     </core:managed-persistence-context>
  | 
  |     <core:filter name="clientFilter">
  |         <core:name>clientFilter</core:name>
  |         <core:parameters>
  |             <key>clientId</key>
  |             <value>#{clientId}</value>
  |         </core:parameters>
  |     </core:filter>
  | 
  |     <core:managed-persistence-context 
  |     	name="filterEntityManager"
  |         auto-create="true"
  |         persistence-unit-jndi-name="java:/filteredEntityManagerFactory">
  |         <core:filters><value>#{clientFilter}</value></core:filters>
  |     </core:managed-persistence-context>

Then I added a @Factory Method for entityManager to Authenticator.java

	@In 
  | 	EntityManager entityManager;
  | 	
  | 	@Factory("entityManager")
  | 	public EntityManager selectEntityManager(){
  | 		try{
  | 			Context jndi = new InitialContext();
  | 			if(identity.isLoggedIn()){
  | 				EntityManagerFactory emf = (EntityManagerFactory) jndi.lookup("java:/filteredEntityManagerFactory");
  | 				log.info("just set: " + "java:/filteredEntityManagerFactory");
  | 				return emf.createEntityManager(); 
  | 			}else{
  | 				EntityManagerFactory emf = (EntityManagerFactory) jndi.lookup("java:/standardEntityManagerFactory");
  | 				log.info("just set: " + "java:/standardEntityManagerFactory");
  | 				return emf.createEntityManager();
  | 			}
  | 		}catch(NamingException e){
  | 			log.info("error " + e.toString());
  | 			return null;
  | 		}
  | 	}
  | 

Now when I run this and try to login, I get an exception:

20:55:47,143 ERROR [SeamLoginModule] Error invoking login method
  | javax.faces.el.EvaluationException: Exception while invoking expression #{authenticator.authenticate}
  |         at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:153)
  |         at org.jboss.seam.actionparam.ActionParamBindingHelper.invokeTheExpression(ActionParamBindingHelper.java:58)
  |         at org.jboss.seam.actionparam.ActionParamMethodBinding.invoke(ActionParamMethodBinding.java:75)
  |         at org.jboss.seam.core.Expressions$2.invoke(Expressions.java:148)
  |         at org.jboss.seam.security.jaas.SeamLoginModule.login(SeamLoginModule.java:104)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  |         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:585)
  |         at javax.security.auth.login.LoginContext.invoke(LoginContext.java:769)
  |         at javax.security.auth.login.LoginContext.access$000(LoginContext.java:186)
  |         at javax.security.auth.login.LoginContext$5.run(LoginContext.java:706)
  |         at java.security.AccessController.doPrivileged(Native Method)
  |         at javax.security.auth.login.LoginContext.invokeCreatorPriv(LoginContext.java:703)
  |         at javax.security.auth.login.LoginContext.login(LoginContext.java:575)
  |         at org.jboss.seam.security.Identity.authenticate(Identity.java:247)
  |         at org.jboss.seam.security.Identity.authenticate(Identity.java:240)
  |         at org.jboss.seam.security.Identity.login(Identity.java:170)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  |         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:585)
  |         at com.sun.el.parser.AstValue.invoke(AstValue.java:174)
  |         at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:286)
  |         at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
  |         at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:69)
  |         at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
  |         at javax.faces.component.UICommand.broadcast(UICommand.java:106)
  |         at org.ajax4jsf.framework.ajax.AjaxViewRoot.processEvents(AjaxViewRoot.java:180)
  |         at org.ajax4jsf.framework.ajax.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:158)
  |         at org.ajax4jsf.framework.ajax.AjaxViewRoot.processApplication(AjaxViewRoot.java:329)
  |         at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:343)
  |         at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:86)
  |         at javax.faces.webapp.FacesServlet.service(FacesServlet.java:137)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:63)
  |         at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:60)
  |         at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
  |         at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
  |         at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
  |         at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:57)
  |         at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
  |         at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:79)
  |         at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
  |         at org.jboss.seam.web.SeamFilter.doFilter(SeamFilter.java:84)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:96)
  |         at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:220)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  |         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
  |         at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
  |         at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
  |         at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
  |         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  |         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  |         at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
  |         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
  |         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
  |         at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
  |         at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
  |         at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  |         at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
  |         at java.lang.Thread.run(Thread.java:595)
  | Caused by: java.lang.NullPointerException
  |         at com.skyline.Authenticator.authenticate(Authenticator.java:62)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  |         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:585)
  |         at org.jboss.seam.util.Reflections.invoke(Reflections.java:20)
  |         at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
  |         at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:57)
  |         at org.jboss.seam.interceptors.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:34)
  |         at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
  |         at org.jboss.seam.interceptors.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:47)
  |         at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
  |         at org.jboss.seam.interceptors.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:27)
  |         at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
  |         at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:103)
  |         at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:151)
  |         at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:87)
  |         at com.skyline.Authenticator_$$_javassist_101.authenticate(Authenticator_$$_javassist_101.java)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  |         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:585)
  |         at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:129)
  |         ... 69 more
  | 

The nullpointerexception happens at line  Users user = (Users) entityManager.createQuery(
  | 	            "from Users where user_name = :username and password = :password")
  | 	            .setParameter("username", Identity.instance().getUsername())
  | 	            .setParameter("password", Identity.instance().getPassword())
  | 	            .getSingleResult();

That's where the entityManager is first used... it doesn't seem to get innitiated in the @Factory method...

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