1 /*
2 * $Id: InitParameterExtractor.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.ServletContext;
26
27 import org.apache.tiles.request.attribute.HasKeys;
28
29 /**
30 * Extract initialization parameters from the servlet context.
31 *
32 * @version $Rev: 1066499 $ $Date: 2011-02-03 02:33:34 +1100 (Thu, 03 Feb 2011) $
33 */
34 public class InitParameterExtractor implements HasKeys<String> {
35
36 /**
37 * The servlet context.
38 */
39 private ServletContext context;
40
41 /**
42 * Constructor.
43 *
44 * @param context The servlet context.
45 */
46 public InitParameterExtractor(ServletContext context) {
47 this.context = context;
48 }
49
50 @SuppressWarnings("unchecked")
51 @Override
52 public Enumeration<String> getKeys() {
53 return context.getInitParameterNames();
54 }
55
56 @Override
57 public String getValue(String key) {
58 return context.getInitParameter(key);
59 }
60
61 }