01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17:
18: package org.apache.commons.configuration.web;
19:
20: import java.util.Iterator;
21: import javax.servlet.Servlet;
22: import javax.servlet.ServletContext;
23:
24: import org.apache.commons.collections.iterators.EnumerationIterator;
25:
26: /**
27: * A configuration wrapper to read the initialization parameters of a servlet
28: * context. This configuration is read only, adding or removing a property will
29: * throw an UnsupportedOperationException.
30: *
31: * @author <a href="mailto:ebourg@apache.org">Emmanuel Bourg</a>
32: * @version $Revision: 515306 $, $Date: 2007-03-06 22:15:00 +0100 (Di, 06 Mrz 2007) $
33: * @since 1.1
34: */
35: public class ServletContextConfiguration extends BaseWebConfiguration {
36: /** Stores the wrapped servlet context.*/
37: protected ServletContext context;
38:
39: /**
40: * Create a ServletContextConfiguration using the context of
41: * the specified servlet.
42: *
43: * @param servlet the servlet
44: */
45: public ServletContextConfiguration(Servlet servlet) {
46: this .context = servlet.getServletConfig().getServletContext();
47: }
48:
49: /**
50: * Create a ServletContextConfiguration using the servlet context
51: * initialization parameters.
52: *
53: * @param context the servlet context
54: */
55: public ServletContextConfiguration(ServletContext context) {
56: this .context = context;
57: }
58:
59: public Object getProperty(String key) {
60: return handleDelimiters(context.getInitParameter(key));
61: }
62:
63: public Iterator getKeys() {
64: return new EnumerationIterator(context.getInitParameterNames());
65: }
66: }
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