1 /* 2 * Copyright 2023 Web-Legacy 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package org.apache.tiles.request.jakarta.servlet.extractor; 17 18 import java.util.Enumeration; 19 20 import org.apache.tiles.request.attribute.EnumeratedValuesExtractor; 21 22 import jakarta.servlet.http.HttpServletRequest; 23 import jakarta.servlet.http.HttpServletResponse; 24 25 /** 26 * Extract header values from an HTTP request. 27 * 28 * <p>Copied from Apache tiles-request-servlet 1.0.7 and adapted for 29 * Jakarta EE 9.</p> 30 */ 31 public class HeaderExtractor implements EnumeratedValuesExtractor { 32 33 /** 34 * The request. 35 */ 36 private HttpServletRequest request; 37 38 /** 39 * The response. 40 */ 41 private HttpServletResponse response; 42 43 /** 44 * Constructor. 45 * 46 * @param request The request. 47 * @param response The response. 48 */ 49 public HeaderExtractor(HttpServletRequest request, 50 HttpServletResponse response) { 51 52 this.request = request; 53 this.response = response; 54 } 55 56 /** 57 * The enumeration of the keys in the stored attributes. 58 * 59 * @return The keys. 60 */ 61 @Override 62 public Enumeration<String> getKeys() { 63 return request.getHeaderNames(); 64 } 65 66 /** 67 * Returns the value of the attribute with the given key. 68 * 69 * @param key The key of the attribute. 70 * 71 * @return The value. 72 */ 73 @Override 74 public String getValue(String key) { 75 return request.getHeader(key); 76 } 77 78 /** 79 * Returns the values stored at the given key. 80 * 81 * @param key The key of the attribute. 82 * 83 * @return The values of the attribute. 84 */ 85 @Override 86 public Enumeration<String> getValues(String key) { 87 return request.getHeaders(key); 88 } 89 90 /** 91 * Sets a value for the given key. 92 * 93 * @param key The key of the attribute. 94 * 95 * @param value The value of the attribute. 96 */ 97 @Override 98 public void setValue(String key, String value) { 99 response.setHeader(key, value); 100 } 101 }