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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.commons.converter;
20  
21  import com.sun.facelets.FaceletContext;
22  import com.sun.facelets.tag.MetaRuleset;
23  import com.sun.facelets.tag.TagAttribute;
24  import com.sun.facelets.tag.TagAttributeException;
25  import com.sun.facelets.tag.jsf.ConvertHandler;
26  import com.sun.facelets.tag.jsf.ConverterConfig;
27  
28  public class ConvertEnumTagHandler extends ConvertHandler
29  {
30      private final TagAttribute targetClass;
31      
32      public ConvertEnumTagHandler(ConverterConfig config)
33      {
34          super(config);
35          this.targetClass = this.getAttribute("targetClass");
36      }
37  
38      public void setAttributes(FaceletContext ctx, Object obj)
39      {
40          super.setAttributes(ctx, obj);
41          EnumConverter c = (EnumConverter) obj;
42          if (this.targetClass != null)
43          {
44              if (this.targetClass.isLiteral())
45              {
46                  try
47                  {
48                      c.setTargetClass(org.apache.myfaces.commons.util.ClassUtils.classForName(this.targetClass.getValue()));
49                  }
50                  catch (ClassNotFoundException e)
51                  {
52                      throw new TagAttributeException(this.targetClass,"Cannot find class assigned: "+this.targetClass.getValue(),e);
53                  }
54              }
55              else
56              {
57                  c.setTargetClass((Class) this.targetClass.getObject(ctx, Class.class));
58              }
59          }
60      }
61  
62      @Override
63      protected MetaRuleset createMetaRuleset(Class type)
64      {
65          return super.createMetaRuleset(type).ignore("targetClass");
66      }
67  }