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1   /*****************************************************************
2    * Licensed to the Apache Software Foundation (ASF) under one   *
3    * or more contributor license agreements.  See the NOTICE file *
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7    * "License"); you may not use this file except in compliance   *
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17   * under the License.                                           *
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19  
20  package org.apache.james.transport.matchers;
21  
22  import org.apache.mailet.GenericMatcher;
23  import org.apache.mailet.Mail;
24  import org.apache.mailet.MailAddress;
25  
26  import java.util.Collection;
27  import java.util.StringTokenizer;
28  
29  /***
30   * @version 1.0.0, 24/04/1999
31   */
32  public class SenderIs extends GenericMatcher {
33  
34      private Collection senders;
35  
36      public void init() throws javax.mail.MessagingException {
37          StringTokenizer st = new StringTokenizer(getCondition(), ", \t", false);
38          senders = new java.util.HashSet();
39          while (st.hasMoreTokens()) {
40              senders.add(new MailAddress(st.nextToken()));
41          }
42      }
43  
44      public Collection match(Mail mail) {
45          if (senders.contains(mail.getSender())) {
46              return mail.getRecipients();
47          } else {
48              return null;
49          }
50      }
51  }