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.ServletConfig;
24 import javax.servlet.ServletContext;
25
26 /**
27 * Implements {@link JeeConfig} with a {@link ServletConfig}.
28 *
29 * @version $Id$
30 * @since 2.0
31 */
32 public class JeeServletConfig implements JeeConfig
33 {
34 protected ServletConfig servlet;
35
36 public JeeServletConfig(ServletConfig servlet)
37 {
38 if (servlet == null)
39 {
40 throw new NullPointerException("ServletConfig should not be null; there must be a way to get a ServletContext");
41 }
42 this.servlet = servlet;
43 }
44
45 /** {@inheritDoc} */
46 public String getInitParameter(String name)
47 {
48 return servlet.getInitParameter(name);
49 }
50
51 /** {@inheritDoc} */
52 public String findInitParameter(String key)
53 {
54 String param = getInitParameter(key);
55 if (param == null)
56 {
57 param = getServletContext().getInitParameter(key);
58 }
59 return param;
60 }
61
62 /** {@inheritDoc} */
63 public Enumeration getInitParameterNames()
64 {
65 return servlet.getInitParameterNames();
66 }
67
68 /** {@inheritDoc} */
69 public String getName()
70 {
71 return servlet.getServletName();
72 }
73
74 /** {@inheritDoc} */
75 public ServletContext getServletContext()
76 {
77 return servlet.getServletContext();
78 }
79
80 }