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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.myfaces.view.facelets.el;
20  
21  import javax.el.ELContext;
22  import javax.el.ELException;
23  import javax.el.PropertyNotFoundException;
24  import javax.el.ValueExpression;
25  import javax.el.ValueReference;
26  import javax.faces.view.facelets.TagAttribute;
27  
28  /**
29   * TagValueExpression for el-api 2.2
30   * 
31   * @author Jakob Korherr (latest modification by $Author$)
32   * @version $Revision$ $Date$
33   */
34  public class ContextAwareTagValueExpressionUEL extends ContextAwareTagValueExpression
35  {
36  
37      public ContextAwareTagValueExpressionUEL()
38      {
39          super();
40      }
41  
42      public ContextAwareTagValueExpressionUEL(TagAttribute attr, ValueExpression orig)
43      {
44          super(attr, orig);
45      }
46      
47      @Override
48      public ValueReference getValueReference(ELContext context)
49      {
50          try
51          {
52              return getWrapped().getValueReference(context);
53          }
54          catch (PropertyNotFoundException pnfe)
55          {
56              throw new ContextAwarePropertyNotFoundException(getLocation(), getExpressionString(), getQName() ,  pnfe);
57          }
58          catch (ELException e)
59          {
60              throw new ContextAwareELException(getLocation(), getExpressionString(), getQName(),  e);
61          }
62          //Not necessary because NullPointerException by null context never occur and should not be wrapped
63          //catch (Exception e) {
64          //    throw new ContextAwareException(getLocation(), getExpressionString(), getQName(), e);
65          //}
66      }
67      
68  }