1 package org.apache.velocity.tools.view;
2
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
22 import java.util.Enumeration;
23 import javax.servlet.ServletContext;
24
25 /**
26 * Implements {@link JeeConfig} with only a {@link ServletContext}.
27 *
28 * @version $Id$
29 * @since 2.0
30 */
31 public class JeeContextConfig implements JeeConfig
32 {
33 protected ServletContext context;
34
35 public JeeContextConfig(ServletContext context)
36 {
37 if (context == null)
38 {
39 throw new NullPointerException("ServletContext should not be null; there must be a way to get a ServletContext");
40 }
41 this.context = context;
42 }
43
44 /** {@inheritDoc} */
45 public String getInitParameter(String name)
46 {
47 return null;
48 }
49
50 /**
51 * Only checks the {@link ServletContext}'s init-params
52 * for the specified parameter.
53 */
54 public String findInitParameter(String key)
55 {
56 return context.getInitParameter(key);
57 }
58
59 /** {@inheritDoc} */
60 public Enumeration getInitParameterNames()
61 {
62 return null;
63 }
64
65 /** {@inheritDoc} */
66 public String getName()
67 {
68 return null;
69 }
70
71 /** {@inheritDoc} */
72 public ServletContext getServletContext()
73 {
74 return context;
75 }
76
77 }