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1   /************************************************************************
2    * Copyright (c) 1999-2006 The Apache Software Foundation.             *
3    * All rights reserved.                                                *
4    * ------------------------------------------------------------------- *
5    * Licensed under the Apache License, Version 2.0 (the "License"); you *
6    * may not use this file except in compliance with the License. You    *
7    * may obtain a copy of the License at:                                *
8    *                                                                     *
9    *     http://www.apache.org/licenses/LICENSE-2.0                      *
10   *                                                                     *
11   * Unless required by applicable law or agreed to in writing, software *
12   * distributed under the License is distributed on an "AS IS" BASIS,   *
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or     *
14   * implied.  See the License for the specific language governing       *
15   * permissions and limitations under the License.                      *
16   ***********************************************************************/
17  
18  package org.apache.james.transport.matchers;
19  
20  import org.apache.mailet.GenericMatcher;
21  import org.apache.mailet.Mail;
22  import org.apache.mailet.MailAddress;
23  
24  import java.util.Collection;
25  import java.util.StringTokenizer;
26  
27  /***
28   * @version 1.0.0, 24/04/1999
29   */
30  public class SenderIs extends GenericMatcher {
31  
32      private Collection senders;
33  
34      public void init() throws javax.mail.MessagingException {
35          StringTokenizer st = new StringTokenizer(getCondition(), ", \t", false);
36          senders = new java.util.HashSet();
37          while (st.hasMoreTokens()) {
38              senders.add(new MailAddress(st.nextToken()));
39          }
40      }
41  
42      public Collection match(Mail mail) {
43          if (senders.contains(mail.getSender())) {
44              return mail.getRecipients();
45          } else {
46              return null;
47          }
48      }
49  }