001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018 package org.apache.commons.configuration.web; 019 020 import java.util.Iterator; 021 import javax.servlet.Servlet; 022 import javax.servlet.ServletConfig; 023 024 import org.apache.commons.collections.iterators.EnumerationIterator; 025 026 /** 027 * A configuration wrapper around a {@link ServletConfig}. This configuration 028 * is read only, adding or removing a property will throw an 029 * UnsupportedOperationException. 030 * 031 * @author <a href="mailto:ebourg@apache.org">Emmanuel Bourg</a> 032 * @version $Revision: 515306 $, $Date: 2007-03-06 22:15:00 +0100 (Di, 06. Mrz 2007) $ 033 * @since 1.1 034 */ 035 public class ServletConfiguration extends BaseWebConfiguration 036 { 037 /** Stores a reference to the wrapped <code>ServletConfig</code>.*/ 038 protected ServletConfig config; 039 040 /** 041 * Create a ServletConfiguration using the initialization parameter of 042 * the specified servlet. 043 * 044 * @param servlet the servlet 045 */ 046 public ServletConfiguration(Servlet servlet) 047 { 048 this(servlet.getServletConfig()); 049 } 050 051 /** 052 * Create a ServletConfiguration using the servlet initialization parameters. 053 * 054 * @param config the servlet configuration 055 */ 056 public ServletConfiguration(ServletConfig config) 057 { 058 this.config = config; 059 } 060 061 public Object getProperty(String key) 062 { 063 return handleDelimiters(config.getInitParameter(key)); 064 } 065 066 public Iterator getKeys() 067 { 068 return new EnumerationIterator(config.getInitParameterNames()); 069 } 070 }