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1   /************************************************************************
2    * Copyright (c) 2000-2006 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.mailets.debug;
19  
20  import org.apache.mailet.GenericMailet;
21  import org.apache.mailet.Mail;
22  
23  /***
24   * A simple in memory counter.  Designed to count messages sent to this recipient
25   * for debugging purposes.
26   *
27   */
28  public class Counter extends GenericMailet {
29  
30      /***
31       * The number of mails processed by this mailet
32       */
33      int counter = 0;
34  
35      /***
36       * Count processed mails, marking each mail as completed after counting.
37       *
38       * @param mail the mail to process
39       */
40      public void service(Mail mail) {
41          counter++;
42          log(counter + "");
43          mail.setState(Mail.GHOST);
44      }
45  
46      /***
47       * Return a string describing this mailet.
48       *
49       * @return a string describing this mailet
50       */
51      public String getMailetInfo() {
52          return "Counter Mailet";
53      }
54  }