package org.codehaus.modello.model;
   
   /*
    * Copyright (c) 2004, Codehaus.org
    *
    * Permission is hereby granted, free of charge, to any person obtaining a copy of
    * this software and associated documentation files (the "Software"), to deal in
    * the Software without restriction, including without limitation the rights to
    * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
   * of the Software, and to permit persons to whom the Software is furnished to do
   * so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  /**
   * Default values for a model, that can be overrided with <code>defaults</code> element of the model descriptor.
   *
   * @author <a href="mailto:evenisse@codehaus.org">Emmanuel Venisse</a>
   */
  public class ModelDefault {
      public static final String CHECK_DEPRECATION = "checkDeprecation";
  
      public static final String CHECK_DEPRECATION_VALUE = "false";
  
      public static final String PACKAGE = "package";
  
      public static final String PACKAGE_VALUE = "model";
  
      public static final String LIST = "java.util.List";
  
      public static final String LIST_VALUE = "new java.util.ArrayList<?>()";
  
      public static final String MAP = "java.util.Map";
  
      public static final String MAP_VALUE = "new java.util.HashMap()";
  
      public static final String PROPERTIES = "java.util.Properties";
  
      public static final String PROPERTIES_VALUE = "new java.util.Properties()";
  
      public static final String SET = "java.util.Set";
  
      public static final String SET_VALUE = "new java.util.HashSet<?>()";
  
      public static final String STRICT_XML_ATTRIBUTES = "strictXmlAttributes";
  
      public static final String STRICT_XML_ATTRIBUTES_VALUE = "true";
  
      private String key;
  
      private String value;
  
      public static ModelDefault getDefault(String key) throws ModelValidationException {
          validateKey(key);
  
          ModelDefault modelDefault = new ModelDefault();
  
          modelDefault.setKey(key);
  
          if (CHECK_DEPRECATION.equalsIgnoreCase(key)) {
              modelDefault.setValue(CHECK_DEPRECATION_VALUE);
          } else if (PACKAGE.equalsIgnoreCase(key)) {
              modelDefault.setValue(PACKAGE_VALUE);
          } else if (LIST.equalsIgnoreCase(key)) {
              modelDefault.setValue(LIST_VALUE);
          } else if (MAP.equalsIgnoreCase(key)) {
              modelDefault.setValue(MAP_VALUE);
          } else if (PROPERTIES.equalsIgnoreCase(key)) {
              modelDefault.setValue(PROPERTIES_VALUE);
          } else if (SET.equalsIgnoreCase(key)) {
              modelDefault.setValue(SET_VALUE);
          } else if (STRICT_XML_ATTRIBUTES.equalsIgnoreCase(key)) {
              modelDefault.setValue(STRICT_XML_ATTRIBUTES_VALUE);
          }
  
          return modelDefault;
      }
  
      public void setKey(String key) {
          this.key = key;
      }
  
      public String getKey() {
          return key;
      }
  
      public void setValue(String value) {
          this.value = value;
      }
 
     public String getValue() {
         return value;
     }
 
     public boolean getBoolean() {
         return Boolean.valueOf(value).booleanValue();
     }
 
     public void validateElement() throws ModelValidationException {
         if (isEmpty(key)) {
             throw new ModelValidationException("You must define the key of default element.");
         }
 
         if (isEmpty(value)) {
             throw new ModelValidationException("You must define the value of default element.");
         }
 
         validateKey(key);
     }
 
     private static void validateKey(String key) throws ModelValidationException {
         if (!SET.equalsIgnoreCase(key)
                 && !LIST.equalsIgnoreCase(key)
                 && !MAP.equalsIgnoreCase(key)
                 && !PROPERTIES.equalsIgnoreCase(key)
                 && !CHECK_DEPRECATION.equalsIgnoreCase(key)
                 && !PACKAGE.equalsIgnoreCase(key)
                 && !STRICT_XML_ATTRIBUTES.equalsIgnoreCase(key)) {
             throw new ModelValidationException("The key of default element must be ' " + SET + "', '" + LIST + "', '"
                     + MAP + "', '" + PROPERTIES + "', '" + CHECK_DEPRECATION + "', '" + PACKAGE + "' or '"
                     + STRICT_XML_ATTRIBUTES + "', was '" + key + "'.");
         }
     }
 
     protected boolean isEmpty(String string) {
         return string == null || string.trim().length() == 0;
     }
 }