2009/05/20 - Apache Shale has been retired.

For more information, please explore the Attic.

Coverage Report - org.apache.shale.view.faces.ShaleViewRoot
 
Classes in this File Line Coverage Branch Coverage Complexity
ShaleViewRoot
0% 
0% 
2.2
 
 1  
 /*
 2  
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3  
  * contributor license agreements.  See the NOTICE file distributed with
 4  
  * this work for additional information regarding copyright ownership.
 5  
  * The ASF licenses this file to you under the Apache License, Version 2.0
 6  
  * (the "License"); you may not use this file except in compliance with
 7  
  * the License.  You may obtain a copy of the License at
 8  
  *
 9  
  *      http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 package org.apache.shale.view.faces;
 18  
 
 19  
 import javax.faces.component.UIViewRoot;
 20  
 import javax.faces.context.FacesContext;
 21  
 
 22  
 import org.apache.shale.view.Constants;
 23  
 import org.apache.shale.view.ExceptionHandler;
 24  
 
 25  
 /**
 26  
  * <p>Extending the UIViewRoot to provide specialized exception
 27  
  * handling needed for the Shale view controller to enforce the contracts
 28  
  * of the callbacks.</p>
 29  
  */
 30  0
 public class ShaleViewRoot extends UIViewRoot  {
 31  
 
 32  
     /**
 33  
      * <p>Override to catch exceptions raised by the action listeners
 34  
      * in the invoke application phase.</p>
 35  
      *
 36  
      * @param context faces context
 37  
      */
 38  
     public void processApplication(FacesContext context) {
 39  
         try {
 40  0
             super.processApplication(context);
 41  0
         } catch (Exception e) {
 42  0
             handleException(context, e);
 43  0
             context.responseComplete();
 44  0
         }
 45  0
     }
 46  
 
 47  
     /**
 48  
      * <p>Override to catch and handle exceptions with immediate commands
 49  
      * and value change listeners in the apply request values phase.</p>
 50  
      *
 51  
      * @param context faces context
 52  
      */
 53  
     public void processDecodes(FacesContext context) {
 54  
         try {
 55  0
             super.processDecodes(context);
 56  0
         } catch (Exception e) {
 57  0
             handleException(context, e);
 58  0
             context.responseComplete();
 59  0
         }
 60  0
     }
 61  
 
 62  
     /**
 63  
      * <p>Override to catch and handle exceptions raised in the 
 64  
      * update model phase.</p>
 65  
      *
 66  
      * @param context faces context
 67  
      */
 68  
     public void processUpdates(FacesContext context) {
 69  
         try {
 70  0
             super.processUpdates(context);
 71  0
         } catch (Exception e) {
 72  0
             handleException(context, e);
 73  0
             context.responseComplete();
 74  0
         }
 75  0
     }
 76  
 
 77  
     /**
 78  
      * <p>Override to catch and handle exceptions in value change
 79  
      * listeners that might have occured in the process validations
 80  
      * phase.</p>
 81  
      *
 82  
      * @param context faces context
 83  
      */
 84  
     public void processValidators(FacesContext context) {
 85  
         try {
 86  0
             super.processValidators(context);
 87  0
         } catch (Exception e) {
 88  0
             handleException(context, e);
 89  0
             context.responseComplete();           
 90  0
         }
 91  0
     }
 92  
 
 93  
 
 94  
     /**
 95  
      * <p>Handle the specified exception according to the strategy
 96  
      * defined by our current {@link ExceptionHandler}.</p>
 97  
      *
 98  
      * @param context FacesContext for the current request
 99  
      * @param exception Exception to be handled
 100  
      */
 101  
     private void handleException(FacesContext context, Exception exception) {
 102  
 
 103  0
         if (context == null) {
 104  0
             exception.printStackTrace(System.out);
 105  0
             return;
 106  
         }
 107  0
         ExceptionHandler handler = (ExceptionHandler)
 108  
           context.getApplication().getVariableResolver().resolveVariable
 109  
                 (context, Constants.EXCEPTION_HANDLER);
 110  0
         handler.handleException(exception);
 111  
 
 112  0
     }
 113  
 }