/*
    * 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.custom.calendar;
  
  import javax.el.ValueExpression;
  import javax.faces.component.UIComponent;
  import javax.faces.context.FacesContext;
  
  import org.apache.myfaces.shared_tomahawk.util.ClassUtils;
  
  /**
   * <p>
   * HtmlTree tag.
   * </p>
   * @since 1.1.7
   * @author <a href="mailto:oliver@rossmueller.com">Oliver Rossmueller </a>
   * @version $Revision: 888604 $ $Date: 2004/10/13 11:50:58
   */
  public abstract class AbstractHtmlInputCalendarTag extends 
      org.apache.myfaces.generated.taglib.html.ext.HtmlInputTextTag
  {
      
      private ValueExpression _dateBusinessConverter;
      
      public void setDateBusinessConverter( ValueExpression dateBusinessConverter)
      {
          _dateBusinessConverter = dateBusinessConverter;
      }
  
      public void release() {
          super.release();
          _dateBusinessConverter = null;
      }
  
      /**
       * Applies attributes to the tree component
       */
      protected void setProperties(UIComponent component) {
          super.setProperties(component);
          FacesContext context = FacesContext.getCurrentInstance();
  
          org.apache.myfaces.custom.calendar.AbstractHtmlInputCalendar comp =
              (org.apache.myfaces.custom.calendar.AbstractHtmlInputCalendar) component;
          
          if (_dateBusinessConverter != null)
          {
              if (!_dateBusinessConverter.isLiteralText())
              {
                  comp.setValueExpression("dateBusinessConverter", _dateBusinessConverter);
              }
              else
              {
                  String s = _dateBusinessConverter.getExpressionString();
                  if (s != null)
                  {            
                      try
                      {
                          Class clazz = ClassUtils.classForName(s);
                          comp.setDateBusinessConverter( (DateBusinessConverter) ClassUtils.newInstance(clazz));
                      }
                      catch(ClassNotFoundException e)
                      {
                          throw new IllegalArgumentException("Class referenced in calendarConverter not found: "+_dateBusinessConverter);
                      }
                      catch(ClassCastException e)
                      {
                          throw new IllegalArgumentException("Class referenced in calendarConverter is not instance of org.apache.myfaces.custom.calendar.CalendarConverter: "+_dateBusinessConverter);
                      }
                  }
              }
          }
      }
  }