1 /* 2 * $Id: ParameterExtractor.java 1066499 2011-02-02 15:33:34Z 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.servlet.extractor; 22 23 import java.util.Enumeration; 24 25 import javax.servlet.http.HttpServletRequest; 26 27 import org.apache.tiles.request.attribute.HasKeys; 28 29 /** 30 * Extract parameters from the request. 31 * 32 * @version $Rev: 1066499 $ $Date: 2011-02-03 02:33:34 +1100 (Thu, 03 Feb 2011) $ 33 */ 34 public class ParameterExtractor implements HasKeys<String> { 35 36 /** 37 * The servlet request. 38 */ 39 private HttpServletRequest request; 40 41 /** 42 * Constructor. 43 * 44 * @param request The servlet request. 45 */ 46 public ParameterExtractor(HttpServletRequest request) { 47 this.request = request; 48 } 49 50 @SuppressWarnings("unchecked") 51 @Override 52 public Enumeration<String> getKeys() { 53 return request.getParameterNames(); 54 } 55 56 @Override 57 public String getValue(String key) { 58 return request.getParameter(key); 59 } 60 }