[jboss-user] [JBoss Seam] - When uploading a file via ice:inputFile, a component is nul

Newlukai do-not-reply at jboss.com
Tue Aug 7 10:16:39 EDT 2007


Hi,

I don't know, if it's a Seam issue or an ICEfaces issue. So I'll ask both of you ;). Before I forget it: I'm using Seam 1.2.1.GA, ICEfaces 1.6 on a JBoss AS 4.0.5.GA.

I've a page where an ice:inputFile is in an ice:popupPanel.
<ice:panelPopup draggable="true"
  |     rendered="#{testactionDeveloper.showUpDownloadDialog}"
  |     visible="#{testactionDeveloper.showUpDownloadDialog}">
  |   <f:facet name="header">
  |     ... omitted ...
  |   </f:facet>
  | 
  |   <f:facet name="body">
  |     <ice:panelGrid columns="1" cellpadding="0" cellspacing="0" border="0">
  |       <h:dataTable value="#{testactionDeveloper.attachedFiles}"
  |           var="attachedFile"
  |           rendered="#{!empty testactionDeveloper.attachedFiles}">
  |         ... omitted ...
  |       </h:dataTable>
  |       <ice:inputFile actionListener="#{testactionDeveloper.upload}" style="margin-top: 30px;" id="upload" />
  |     </ice:panelGrid>
  |   </f:facet>
  | </ice:panelPopup>

The "testactionDeveloper" is a Seam component which is defined as follows:
@Stateful
  | @Scope(ScopeType.SESSION)
  | @LoggedIn
  | @Name("testactionDeveloper")
  | public class TestactionDeveloperAction extends TestactionHandling implements TestactionDeveloper, Serializable {
  |   @In(required=false)
  |   private Release selectedRelease;
  |   
  |   @In(required=false)
  |   private Priorityclass selectedPriority;
  |   
  |   @In(required=false)
  |   private Severityclass selectedSeverity;
  |   
  |   @In(required=false)
  |   private User selectedUser;
  |   
  |   ... omitted, you'll see why ;) ...
  | }

As you can see TestactionDeveloperAction subclasses TestactionHandling:
public class TestactionHandling {
  |   @PersistenceContext(unitName = "aresDatabase")
  |   protected transient EntityManager em;
  |   
  |   @In
  |   protected transient FacesContext facesContext;
  |   
  |   @In
  |   protected transient UpDownload upDownload;
  |   
  |   @In @Valid
  |   protected User user;
  |   
  |   public String upload(ActionEvent event) {
  |     InputFile uploadedFile = (InputFile) event.getSource();
  |     boolean success = false;
  |     if(uploadedFile.getStatus() == InputFile.SAVED) {
  |       if(testaction == null) {
  |         testaction = testactions.get(testactionIndex);
  |       }
  |       UpDownloadFileinfo fileInfo = new UpDownloadFileinfo();
  |       fileInfo.setName(uploadedFile.getFileInfo().getFileName());
  |       fileInfo.setFile(uploadedFile.getFile());
  |       fileInfo.setContentType(uploadedFile.getFileInfo().getContentType());
  |       fileInfo.setTestactionID(testaction.getID());
  |       success = upDownload.upload(fileInfo);
  |     }
  |     if( !success ) {
  |       return "failed";
  |     }
  |     return "uploaded";
  |   }
  |   
  |   public List<UpDownloadFileinfo> getAttachedFiles() {
  |     return upDownload.getAttachedFiles(testaction.getID());
  |   }
  |   
  |   ... omitted ...
  | }

Here you can see that upload() and getAttachedFiles() delegate to another Seam component. This component ("upDownload") is configured via components.xml and looks like this:
@Scope(ScopeType.SESSION)
  | @Stateful
  | @LoggedIn
  | public class UpDownloadDatabase implements UpDownload, Serializable {
  |   @PersistenceContext(unitName = "aresDatabase")
  |   private transient EntityManager em;
  |   
  |   @In
  |   private transient FacesContext facesContext;
  |   
  |   private boolean showUpDownloadDialog;
  |   
  |   public boolean upload(UpDownloadFileinfo fileInfo) {
  |     com.idsscheer.ares.entities.File dbFile = new com.idsscheer.ares.entities.File();
  |     dbFile.setName(fileInfo.getName().replaceAll(" ", "_"));
  |     dbFile.setTActID(fileInfo.getTestactionID());
  |     dbFile.setContenttype(fileInfo.getContentType());
  |     
  |     
  |     ... get the data ...
  |     
  |     dbFile.setData(dataFromFile.toByteArray());
  |     
  |     em.persist(dbFile);
  |     em.flush();
  |     return true;
  |   }
  | 
  |   public List<UpDownloadFileinfo> getAttachedFiles(long testactionID) {
  |     List<File> files = EMHelper.execQuery(em, "from File where TACT_ID=" + testactionID + " order by NAME ASC");
  |     List<UpDownloadFileinfo> result = new ArrayList<UpDownloadFileinfo>(files.size());
  |     
  |     for(File file : files) {
  |       UpDownloadFileinfo fileInfo = new UpDownloadFileinfo();
  |       fileInfo.setContentType(file.getContenttype());
  |       fileInfo.setName(file.getName());
  |       fileInfo.setTestactionID(file.getTActID());
  |       result.add(fileInfo);
  |     }
  |     
  |     return result;
  |   }
  | }

This additional "upDownload" component is necessary since it should be possible to switch between saving files in a db or on a filesystem. So I just use the interface UpDownload in the clients and set the implementation in components.xml.

But my problem is now that as soon as I click on "Upload" the attribute "user" in TestactionDeveloperAction (TestactionHandling) is null. Therefore a RequiredException is thrown. But this attribute shouldn't be null, it isn't involved in the upload process. I don't know, what's wrong.

Perhaps you can read sth out of the stack trace:
15:51:33,015 WARN  [UploadServlet] File upload failed
  | javax.faces.el.EvaluationException: /showTestactionForDeveloper.xhtml @247,114 actionListener="#{testactionDeveloper.upload}": javax.ejb.EJBException: org.jboss.seam.RequiredException: In attribute requires non-null value: testactionDeveloper.user
  | 	at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:73)
  | 	at com.icesoft.faces.component.inputfile.InputFile.notifyDone(InputFile.java:254)
  | 	at com.icesoft.faces.component.inputfile.InputFile.upload(InputFile.java:206)
  | 	at com.icesoft.faces.webapp.http.servlet.UploadServlet.service(UploadServlet.java:66)
  | 	at com.icesoft.faces.webapp.http.servlet.PathDispatcher$Matcher.serviceOnMatch(PathDispatcher.java:52)
  | 	at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:29)
  | 	at com.icesoft.faces.webapp.http.servlet.MainSessionBoundServlet.service(MainSessionBoundServlet.java:97)
  | 	at com.icesoft.faces.webapp.http.servlet.SessionDispatcher.service(SessionDispatcher.java:35)
  | 	at com.icesoft.faces.webapp.http.servlet.PathDispatcher$Matcher.serviceOnMatch(PathDispatcher.java:52)
  | 	at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:29)
  | 	at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:85)
  | 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
  | 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  | 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
  | 	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
  | 	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:359)
  | 	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
  | 	at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.service(BlockingServlet.java:54)
  | 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  | 	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.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$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
  | 	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  | 	at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
  | 	at java.lang.Thread.run(Thread.java:595)
  | Caused by: javax.ejb.EJBException: org.jboss.seam.RequiredException: In attribute requires non-null value: testactionDeveloper.user
  | 	at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:69)
  | 	at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83)
  | 	at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:83)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
  | 	at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.stateful.StatefulContainer.localInvoke(StatefulContainer.java:203)
  | 	at org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:98)
  | 	at $Proxy134.upload(Unknown Source)
  | 	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.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:72)
  | 	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:57)
  | 	at org.jboss.seam.interceptors.RemoveInterceptor.aroundInvoke(RemoveInterceptor.java:40)
  | 	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
  | 	at org.jboss.seam.interceptors.SynchronizationInterceptor.aroundInvoke(SynchronizationInterceptor.java:31)
  | 	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
  | 	at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:113)
  | 	at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:50)
  | 	at org.javassist.tmp.java.lang.Object_$$_javassist_36.upload(Object_$$_javassist_36.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 com.sun.el.parser.AstValue.invoke(AstValue.java:130)
  | 	at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274)
  | 	at org.jboss.seam.ui.facelet.OptionalParameterMethodExpression.invoke(OptionalParameterMethodExpression.java:34)
  | 	at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
  | 	at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:69)
  | 	... 37 more
  | Caused by: org.jboss.seam.RequiredException: In attribute requires non-null value: testactionDeveloper.user
  | 	at org.jboss.seam.Component.getValueToInject(Component.java:1919)
  | 	at org.jboss.seam.Component.injectAttributes(Component.java:1368)
  | 	at org.jboss.seam.Component.inject(Component.java:1195)
  | 	at org.jboss.seam.interceptors.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:46)
  | 	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.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:53)
  | 	at sun.reflect.GeneratedMethodAccessor275.invoke(Unknown Source)
  | 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  | 	at java.lang.reflect.Method.invoke(Method.java:585)
  | 	at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118)
  | 	at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:57)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:46)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 	at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
  | 	... 77 more

Thanks in advance
Newlukai

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