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.FilterConfig; 022 023 import org.apache.commons.collections.iterators.EnumerationIterator; 024 025 /** 026 * A configuration wrapper around a {@link FilterConfig}. This configuration is 027 * read only, adding or removing a property will throw an 028 * UnsupportedOperationException. 029 * 030 * @author <a href="mailto:ebourg@apache.org">Emmanuel Bourg</a> 031 * @version $Revision: 515306 $, $Date: 2007-03-06 22:15:00 +0100 (Di, 06. Mrz 2007) $ 032 * @since 1.1 033 */ 034 public class ServletFilterConfiguration extends BaseWebConfiguration 035 { 036 /** Stores the wrapped filter config.*/ 037 protected FilterConfig config; 038 039 /** 040 * Create a ServletFilterConfiguration using the filter initialization parameters. 041 * 042 * @param config the filter configuration 043 */ 044 public ServletFilterConfiguration(FilterConfig config) 045 { 046 this.config = config; 047 } 048 049 public Object getProperty(String key) 050 { 051 return handleDelimiters(config.getInitParameter(key)); 052 } 053 054 public Iterator getKeys() 055 { 056 return new EnumerationIterator(config.getInitParameterNames()); 057 } 058 }