/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
    * with the License.  You may obtain a copy of the License at
    *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  package org.apache.myfaces.commons.converter;
  
  import javax.faces.view.facelets.ConverterConfig;
  import javax.faces.view.facelets.ConverterHandler;
  import javax.faces.view.facelets.FaceletContext;
  import javax.faces.view.facelets.MetaRuleset;
  import javax.faces.view.facelets.TagAttribute;
  import javax.faces.view.facelets.TagAttributeException;
  
  import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFFaceletTag;
  
  @JSFFaceletTag(
          name = "mcc:convertEnum",
          bodyContent = "empty", 
          converterClass="org.apache.myfaces.commons.converter.EnumConverter")
  public class ConvertEnumTagHandler extends ConverterHandler
  {
      private final TagAttribute targetClass;
      
      public ConvertEnumTagHandler(ConverterConfig config)
      {
          super(config);
          this.targetClass = this.getAttribute("targetClass");
      }
  
      public void setAttributes(FaceletContext ctx, Object obj)
      {
          super.setAttributes(ctx, obj);
          EnumConverter c = (EnumConverter) obj;
          if (this.targetClass != null)
          {
              if (this.targetClass.isLiteral())
              {
                  try
                  {
                      c.setTargetClass(org.apache.myfaces.commons.util.ClassUtils.classForName(this.targetClass.getValue()));
                  }
                  catch (ClassNotFoundException e)
                  {
                      throw new TagAttributeException(this.targetClass,"Cannot find class assigned: "+this.targetClass.getValue(),e);
                  }
              }
              else
              {
                  c.setTargetClass((Class) this.targetClass.getObject(ctx, Class.class));
              }
          }
      }
  
      @Override
      protected MetaRuleset createMetaRuleset(Class type)
      {
          return super.createMetaRuleset(type).ignore("targetClass");
      }
  }