/*
    * 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.commons.jxpath.ri.model.dynamic;
  
  import java.util.Locale;
  
  import org.apache.commons.jxpath.DynamicPropertyHandler;
  import org.apache.commons.jxpath.JXPathBeanInfo;
  import org.apache.commons.jxpath.JXPathIntrospector;
  import org.apache.commons.jxpath.ri.QName;
  import org.apache.commons.jxpath.ri.model.NodePointer;
  import org.apache.commons.jxpath.ri.model.NodePointerFactory;
  import org.apache.commons.jxpath.ri.model.beans.NullPointer;
  import org.apache.commons.jxpath.util.ValueUtils;
  
  /**
   * Implements NodePointerFactory for Dynamic classes like Map.
   */
  public class DynamicPointerFactory implements NodePointerFactory {
  
      /**
       * Factory order constant.
       */
      public static final int DYNAMIC_POINTER_FACTORY_ORDER = 800;
  
      /**
       * Constructs a new instance.
       */
      public DynamicPointerFactory() {
          // empty
      }
  
      @Override
      public NodePointer createNodePointer(final NodePointer parent, final QName qName, final Object bean) {
          if (bean == null) {
              return new NullPointer(parent, qName);
          }
          final JXPathBeanInfo bi = JXPathIntrospector.getBeanInfo(bean.getClass());
          if (bi.isDynamic()) {
              final DynamicPropertyHandler handler = ValueUtils.getDynamicPropertyHandler(bi.getDynamicPropertyHandlerClass());
              return new DynamicPointer(parent, qName, bean, handler);
          }
          return null;
      }
  
      @Override
      public NodePointer createNodePointer(final QName qName, final Object bean, final Locale locale) {
          final JXPathBeanInfo bi = JXPathIntrospector.getBeanInfo(bean.getClass());
          if (bi.isDynamic()) {
              final DynamicPropertyHandler handler = ValueUtils.getDynamicPropertyHandler(bi.getDynamicPropertyHandlerClass());
              return new DynamicPointer(qName, bean, handler, locale);
          }
          return null;
      }
  
      @Override
      public int getOrder() {
          return DYNAMIC_POINTER_FACTORY_ORDER;
      }
  }