[TOMAHAWK-1297] Redirect to a JSF page when Throwable exception or error occur

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.1.7
• Assignee: Leonardo Uribe
• Reporter: Leonardo Uribe
• Created: 11/Jul/08 02:15
• Updated: 03/Sep/08 04:46
• Resolved: 28/Aug/08 00:55

Description

This issue was originally open as MYFACES-1889 but this enhancements should be here.

One possible enhancement to the error handling feature of myfaces could be the capability of redirect to a jsf page.

I have studied the issue in deep and the thing could be as described below:

1. Add this configuration to WEB-INF/web.xml

<context-param>
<description>
Handle exceptions with jsf redirect page.
</description>
<param-name>org.apache.myfaces.ERROR_HANDLING_REDIRECT_PAGE</param-name>
<param-value>true</param-value>
</context-param>

2. Define a navigation rule like this:

<navigation-rule>
<from-view-id>*</from-view-id>
<navigation-case>
<from-outcome>java.lang.NullPointerException</from-outcome>
<to-view-id>/nullErrorPage.jsp</to-view-id>
</navigation-case>
</navigation-rule>

Note that in from-outcome there is defined the class name of the error to be redirected by this page.

The first test of this feature has been successful, but there are some questions to be solved:

1. How to add error information (maybe add as a value on the request scope like exceptionList)
2. How to handle multiple errors, maybe the best is use a special outcome like org.apache.myfaces.MultipleThrowable

I'll do some test this weekend and add a possible patch of this feature.