[jboss-user] [JBoss Seam] - Re: PhaseListener in Seam 2.0
wachtda
do-not-reply at jboss.com
Tue Jan 22 02:14:09 EST 2008
Thank you for the hint with the observer.
I'm created a Seam-Component with a observer for org.jboss.seam.beforePhase.
It works, but I get always an error:
| 08:13:04,936 ERROR [STDERR] java.lang.NullPointerException
| 08:13:04,937 ERROR [STDERR] at com.solarmax.scratchbook.action.TrimUIInputStrings.beforePhase(TrimUIInputStrings.java:24 )
| 08:13:04,937 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| 08:13:04,937 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| 08:13:04,938 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| 08:13:04,938 ERROR [STDERR] at java.lang.reflect.Method.invoke(Method.java:585)
| 08:13:04,938 ERROR [STDERR] at org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
| 08:13:04,938 ERROR [STDERR] at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
| 08:13:04,938 ERROR [STDERR] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
| 08:13:04,938 ERROR [STDERR] at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31)
| 08:13:04,938 ERROR [STDERR] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| 08:13:04,938 ERROR [STDERR] at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:4 2)
| 08:13:04,938 ERROR [STDERR] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| 08:13:04,938 ERROR [STDERR] at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
| 08:13:04,938 ERROR [STDERR] at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java :155)
| 08:13:04,938 ERROR [STDERR] at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:91)
| 08:13:04,938 ERROR [STDERR] at com.solarmax.scratchbook.action.TrimUIInputStrings_$$_javassist_2.beforePhase(TrimUIInput Strings_$$_javassist_2.java)
| 08:13:04,938 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| 08:13:04,938 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| 08:13:04,939 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| 08:13:04,939 ERROR [STDERR] at java.lang.reflect.Method.invoke(Method.java:585)
| 08:13:04,939 ERROR [STDERR] at org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
| 08:13:04,939 ERROR [STDERR] at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125)
| 08:13:04,939 ERROR [STDERR] at org.jboss.seam.Component.callComponentMethod(Component.java:2078)
| 08:13:04,939 ERROR [STDERR] at org.jboss.seam.core.Events.raiseEvent(Events.java:85)
| 08:13:04,939 ERROR [STDERR] at org.jboss.seam.jsf.SeamPhaseListener.raiseEventsBeforePhase(SeamPhaseListener.java:381)
| 08:13:04,939 ERROR [STDERR] at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:118)
| 08:13:04,939 ERROR [STDERR] at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:222)
| 08:13:04,939 ERROR [STDERR] at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
| 08:13:04,939 ERROR [STDERR] at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
| 08:13:04,939 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j ava:290)
| 08:13:04,939 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| 08:13:04,939 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
| 08:13:04,939 ERROR [STDERR] at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68)
| 08:13:04,939 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| 08:13:04,940 ERROR [STDERR] at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
| 08:13:04,940 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| 08:13:04,940 ERROR [STDERR] at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
| 08:13:04,940 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| 08:13:04,940 ERROR [STDERR] at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44)
| 08:13:04,940 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| 08:13:04,940 ERROR [STDERR] at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
| 08:13:04,940 ERROR [STDERR] at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
| 08:13:04,941 ERROR [STDERR] at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
| 08:13:04,941 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| 08:13:04,941 ERROR [STDERR] at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
| 08:13:04,941 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| 08:13:04,941 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
| 08:13:04,941 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j ava:235)
| 08:13:04,941 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| 08:13:04,941 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
| 08:13:04,941 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j ava:235)
| 08:13:04,941 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| 08:13:04,941 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
| 08:13:04,941 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
| 08:13:04,941 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.ja va:179)
| 08:13:04,941 ERROR [STDERR] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
| 08:13:04,942 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
| 08:13:04,942 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
| 08:13:04,942 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
| 08:13:04,942 ERROR [STDERR] at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java: 157)
| 08:13:04,942 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
| 08:13:04,942 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
| 08:13:04,942 ERROR [STDERR] at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:856)
| 08:13:04,942 ERROR [STDERR] at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProto col.java:566)
| 08:13:04,942 ERROR [STDERR] at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1508)
| 08:13:04,942 ERROR [STDERR] at java.lang.Thread.run(Thread.java:595)
|
My Seam-Component:
| @Name("trimUIINputStrings")
| public class TrimUIInputStrings {
|
| @Observer("org.jboss.seam.beforePhase")
| public void beforePhase(PhaseEvent event) {
| try {
| FacesContext context = event.getFacesContext();
| HttpServletRequest request = (HttpServletRequest) context.getExternalContext().getRequest();
|
| //Only handle POST
| if ("POST".equalsIgnoreCase(request.getMethod())) {
| trimUIInputStrings(context.getViewRoot().getChildren());
| }
| } catch (Exception e) {
| // TODO Auto-generated catch block
| e.printStackTrace();
| }
| }
|
|
| private void trimUIInputStrings(List<UIComponent> children) {
|
| for (UIComponent child : children) {
| //Only handle UIInput components
| if(child instanceof UIInput) {
| UIInput input = (UIInput) child;
| Object value = input.getValue();
|
| //Only handle Strings
| if(value != null && value instanceof String) {
| input.setValue(((String) value).trim());
| }
| }
|
| if(child.getChildCount() > 0) {
|
| //Loop through it's children
| trimUIInputStrings(child.getChildren());
| }
| }
| }
|
| }
|
Any hints for me?
Thank you
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