    001    /*
    002     * Licensed to the Apache Software Foundation (ASF) under one or more
    003     * contributor license agreements.  See the NOTICE file distributed with
    004     * this work for additional information regarding copyright ownership.
    005     * The ASF licenses this file to You under the Apache License, Version 2.0
    006     * (the "License"); you may not use this file except in compliance with
    007     * the License.  You may obtain a copy of the License at
    008     *
    009     *     http://www.apache.org/licenses/LICENSE-2.0
    010     *
    011     * Unless required by applicable law or agreed to in writing, software
    012     * distributed under the License is distributed on an "AS IS" BASIS,
    013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014     * See the License for the specific language governing permissions and
    015     * limitations under the License.
    016     */
    017    package org.apache.commons.jxpath.ri.model.dynamic;
    018
    019    import java.util.Locale;
    020
    021    import org.apache.commons.jxpath.DynamicPropertyHandler;
    022    import org.apache.commons.jxpath.JXPathBeanInfo;
    023    import org.apache.commons.jxpath.JXPathIntrospector;
    024    import org.apache.commons.jxpath.ri.QName;
    025    import org.apache.commons.jxpath.ri.model.NodePointer;
    026    import org.apache.commons.jxpath.ri.model.NodePointerFactory;
    027    import org.apache.commons.jxpath.ri.model.beans.NullPointer;
    028    import org.apache.commons.jxpath.util.ValueUtils;
    029
    030    /**
    031     * Implements NodePointerFactory for Dynamic classes like Map.
    032     *
    033     * @author Dmitri Plotnikov
    034     * @version $Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $
    035     */
    036    public class DynamicPointerFactory implements NodePointerFactory {
    037
    038        /**
    039         * Factory order constant.
    040         */
    041        public static final int DYNAMIC_POINTER_FACTORY_ORDER = 800;
    042
    043        public int getOrder() {
    044            return DYNAMIC_POINTER_FACTORY_ORDER;
    045        }
    046
    047        public NodePointer createNodePointer(
    048            QName name,
    049            Object bean,
    050            Locale locale) {
    051            JXPathBeanInfo bi = JXPathIntrospector.getBeanInfo(bean.getClass());
    052            if (bi.isDynamic()) {
    053                DynamicPropertyHandler handler =
    054                    ValueUtils.getDynamicPropertyHandler(
    055                        bi.getDynamicPropertyHandlerClass());
    056                return new DynamicPointer(name, bean, handler, locale);
    057            }
    058            return null;
    059        }
    060
    061        public NodePointer createNodePointer(
    062            NodePointer parent,
    063            QName name,
    064            Object bean) {
    065            if (bean == null) {
    066                return new NullPointer(parent, name);
    067            }
    068
    069            JXPathBeanInfo bi = JXPathIntrospector.getBeanInfo(bean.getClass());
    070            if (bi.isDynamic()) {
    071                DynamicPropertyHandler handler =
    072                    ValueUtils.getDynamicPropertyHandler(
    073                        bi.getDynamicPropertyHandlerClass());
    074                return new DynamicPointer(parent, name, bean, handler);
    075            }
    076            return null;
    077        }
    078    }