1 /* 2 * $Id: VelocityScopeMap.java 942431 2010-05-08 18:05:19Z apetrelli $ 3 * 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 */ 21 package org.apache.tiles.request.velocity; 22 23 import java.util.HashSet; 24 import java.util.Set; 25 26 import org.apache.tiles.request.collection.ScopeMap; 27 import org.apache.tiles.request.velocity.extractor.VelocityScopeExtractor; 28 import org.apache.velocity.context.Context; 29 30 /** 31 * <p>Private implementation of <code>Map</code> for servlet request 32 * attributes.</p> 33 * 34 * @version $Rev: 942431 $ $Date: 2010-05-09 04:05:19 +1000 (Sun, 09 May 2010) $ 35 */ 36 37 final class VelocityScopeMap extends ScopeMap { 38 39 /** 40 * The request object to use. 41 */ 42 private Context request = null; 43 44 /** 45 * Constructor. 46 * 47 * @param request The request object to use. 48 */ 49 public VelocityScopeMap(Context request) { 50 super(new VelocityScopeExtractor(request)); 51 this.request = request; 52 } 53 54 @Override 55 public Object remove(Object key) { 56 return request.remove(key); 57 } 58 59 @Override 60 public Object put(String key, Object value) { 61 return request.put(key, value); 62 } 63 64 /** {@inheritDoc} */ 65 public boolean containsKey(Object key) { 66 return request.containsKey(key); 67 } 68 69 70 /** {@inheritDoc} */ 71 public boolean isEmpty() { 72 return size() < 1; 73 } 74 75 76 /** {@inheritDoc} */ 77 public Set<String> keySet() { 78 Set<String> set = new HashSet<String>(); 79 for (Object key : request.getKeys()) { 80 set.add((String) key); 81 } 82 return (set); 83 } 84 85 /** {@inheritDoc} */ 86 public int size() { 87 return request.getKeys().length; 88 } 89 }