| /* |
| * 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.sling.scripting.javascript.wrapper; |
| |
| import java.util.Iterator; |
| import java.util.LinkedHashMap; |
| import java.util.Map; |
| |
| import javax.jcr.Item; |
| import javax.jcr.RepositoryException; |
| |
| import org.mozilla.javascript.ScriptRuntime; |
| import org.mozilla.javascript.Scriptable; |
| import org.mozilla.javascript.ScriptableObject; |
| import org.mozilla.javascript.Undefined; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class ScriptableItemMap extends ScriptableObject { |
| |
| public static final String CLASSNAME = "ItemMap"; |
| |
| /** default log */ |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private final Map<String, Item> items = new LinkedHashMap<String, Item>(); |
| |
| public void jsConstructor(Object res) { |
| if (res instanceof Iterator<?>) { |
| Iterator<?> itemIterator = (Iterator<?>) res; |
| while (itemIterator.hasNext()) { |
| Item item = (Item) itemIterator.next(); |
| try { |
| items.put(item.getName(), item); |
| } catch (RepositoryException re) { |
| log.error("ScriptableItemMap<init>: Cannot get name of item " |
| + item, re); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public String getClassName() { |
| return CLASSNAME; |
| } |
| |
| @Override |
| public boolean has(int index, Scriptable start) { |
| return getItem(index) != null; |
| } |
| |
| @Override |
| public boolean has(String name, Scriptable start) { |
| return items.containsKey(name); |
| } |
| |
| @Override |
| public Object get(int index, Scriptable start) { |
| Item item = getItem(index); |
| if (item != null) { |
| return ScriptRuntime.toObject(this, item); |
| } |
| |
| return Undefined.instance; |
| } |
| |
| @Override |
| public Object get(String name, Scriptable start) { |
| // special provision for the "length" property to simulate an array |
| if ("length".equals(name)) { |
| return ScriptRuntime.toNumber(this.items.keySet().size()+""); |
| } |
| |
| Item item = items.get(name); |
| Object result = Undefined.instance; |
| if (item != null) { |
| result = ScriptRuntime.toObject(this, item); |
| } |
| |
| return result; |
| } |
| |
| @Override |
| public Object[] getIds() { |
| return items.keySet().toArray(); |
| } |
| |
| private Item getItem(int index) { |
| if (index < 0 || index >= items.size()) { |
| return null; |
| } |
| |
| Iterator<Item> itemsIter = items.values().iterator(); |
| while (itemsIter.hasNext() && index > 0) { |
| itemsIter.next(); |
| index--; |
| } |
| |
| return itemsIter.hasNext() ? itemsIter.next() : null; |
| } |
| } |