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.xbean.finder.filter;
018    
019    /**
020     * First, all Include directives are evaluated; at least one must match, or the className is rejected.
021     * Next, all Exclude directives are evaluated. If any matches, the className is rejected.
022     * Last, any classNames which do not match an Include or a Exclude directive are denied by default.
023     */
024    public class IncludeExcludeFilter implements Filter {
025    
026        private Filter include;
027        private Filter exclude;
028    
029        public IncludeExcludeFilter(Filter include, Filter exclude) {
030            this.include = include;
031            this.exclude = exclude;
032        }
033    
034        @Override
035        public boolean accept(String name) {
036            if (include.accept(name)) return !exclude.accept(name);
037            return false;
038        }
039    
040        @Override
041        public String toString() {
042            return "Include." + include +
043                    " Exclude." + exclude;
044        }
045    }