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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 javax.faces.view.facelets.ConverterConfig;
22  import javax.faces.view.facelets.ConverterHandler;
23  import javax.faces.view.facelets.FaceletContext;
24  import javax.faces.view.facelets.MetaRuleset;
25  import javax.faces.view.facelets.TagAttribute;
26  import javax.faces.view.facelets.TagAttributeException;
27  
28  import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFFaceletTag;
29  
30  @JSFFaceletTag(
31          name = "mcc:convertEnum",
32          bodyContent = "empty", 
33          converterClass="org.apache.myfaces.commons.converter.EnumConverter")
34  public class ConvertEnumTagHandler extends ConverterHandler
35  {
36      private final TagAttribute targetClass;
37      
38      public ConvertEnumTagHandler(ConverterConfig config)
39      {
40          super(config);
41          this.targetClass = this.getAttribute("targetClass");
42      }
43  
44      public void setAttributes(FaceletContext ctx, Object obj)
45      {
46          super.setAttributes(ctx, obj);
47          EnumConverter c = (EnumConverter) obj;
48          if (this.targetClass != null)
49          {
50              if (this.targetClass.isLiteral())
51              {
52                  try
53                  {
54                      c.setTargetClass(org.apache.myfaces.commons.util.ClassUtils.classForName(this.targetClass.getValue()));
55                  }
56                  catch (ClassNotFoundException e)
57                  {
58                      throw new TagAttributeException(this.targetClass,"Cannot find class assigned: "+this.targetClass.getValue(),e);
59                  }
60              }
61              else
62              {
63                  c.setTargetClass((Class) this.targetClass.getObject(ctx, Class.class));
64              }
65          }
66      }
67  
68      @Override
69      protected MetaRuleset createMetaRuleset(Class type)
70      {
71          return super.createMetaRuleset(type).ignore("targetClass");
72      }
73  }