1 /**************************************************************** 2 * Licensed to the Apache Software Foundation (ASF) under one * 3 * or more contributor license agreements. See the NOTICE file * 4 * distributed with this work for additional information * 5 * regarding copyright ownership. The ASF licenses this file * 6 * to you under the Apache License, Version 2.0 (the * 7 * "License"); you may not use this file except in compliance * 8 * with the License. You may obtain a copy of the License at * 9 * * 10 * http://www.apache.org/licenses/LICENSE-2.0 * 11 * * 12 * Unless required by applicable law or agreed to in writing, * 13 * software distributed under the License is distributed on an * 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * 15 * KIND, either express or implied. See the License for the * 16 * specific language governing permissions and limitations * 17 * under the License. * 18 ****************************************************************/ 19 20 21 package org.apache.mailet.base; 22 23 import java.util.ArrayList; 24 import java.util.Collection; 25 26 import javax.mail.MessagingException; 27 28 import org.apache.mailet.Mail; 29 import org.apache.mailet.Matcher; 30 import org.apache.mailet.MatcherConfig; 31 32 /** 33 * This class can be used as a wrapper for getting the "not matched" recipients 34 * 35 */ 36 public class MatcherInverter implements Matcher { 37 38 private Matcher wrappedMatcher; 39 40 public MatcherInverter(Matcher wrappedMatcher) { 41 this.wrappedMatcher = wrappedMatcher; 42 } 43 44 /** 45 * @see org.apache.mailet.Matcher#destroy() 46 */ 47 public void destroy() { 48 wrappedMatcher.destroy(); 49 } 50 51 /** 52 * @see org.apache.mailet.Matcher#getMatcherConfig() 53 */ 54 public MatcherConfig getMatcherConfig() { 55 return wrappedMatcher.getMatcherConfig(); 56 } 57 58 /** 59 * @see org.apache.mailet.Matcher#getMatcherInfo() 60 */ 61 public String getMatcherInfo() { 62 return wrappedMatcher.getMatcherInfo(); 63 } 64 65 /** 66 * @see org.apache.mailet.Matcher#destroy() 67 */ 68 public void init(MatcherConfig config) throws MessagingException { 69 wrappedMatcher.init(config); 70 } 71 72 /** 73 * Return a Collection of "not matched" recipients 74 * 75 */ 76 public Collection match(Mail mail) throws MessagingException { 77 // Create a new recipient Collection cause mail.getRecipients() give a reference to the internal 78 // list of recipients. If we make changes there the original collection whould be corrupted 79 Collection recipients = new ArrayList(mail.getRecipients()); 80 81 recipients.removeAll(wrappedMatcher.match(mail)); 82 return recipients; 83 } 84 85 }