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    package org.apache.servicemix.camel.util;
018    
019    import java.util.LinkedList;
020    import java.util.List;
021    
022    import org.apache.camel.spi.HeaderFilterStrategy;
023    
024    /**
025     * {@link HeaderFilterStrategy} implementation that will evaluate a set of
026     * strategies
027     */
028    public class HeaderFilterStrategies implements HeaderFilterStrategy {
029    
030        private final List<HeaderFilterStrategy> strategies = new LinkedList<HeaderFilterStrategy>();
031    
032        public boolean applyFilterToCamelHeaders(String s, Object o) {
033            for (HeaderFilterStrategy strategy : strategies) {
034                if (strategy.applyFilterToCamelHeaders(s, o)) {
035                    return true;
036                }
037            }
038            return false;
039        }
040    
041        public boolean applyFilterToExternalHeaders(String s, Object o) {
042            for (HeaderFilterStrategy strategy : strategies) {
043                if (strategy.applyFilterToExternalHeaders(s, o)) {
044                    return true;
045                }
046            }
047            return false;
048        }
049    
050        /**
051         * Add a strategy to the set of strategies
052         *
053         * @param strategy
054         */
055        public void add(HeaderFilterStrategy strategy) {
056            if (strategy != null) {
057                strategies.add(strategy);
058            }
059        }
060    }