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1   /****************************************************************
2    * Licensed to the Apache Software Foundation (ASF) under one   *
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5    * regarding copyright ownership.  The ASF licenses this file   *
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7    * "License"); you may not use this file except in compliance   *
8    * with the License.  You may obtain a copy of the License at   *
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16   * specific language governing permissions and limitations      *
17   * under the License.                                           *
18   ****************************************************************/
19  
20  
21  package org.apache.james.jspf.terms;
22  
23  import org.apache.james.jspf.core.Inet6Util;
24  
25  /**
26   * This class represent the ip6 mechanism
27   * 
28   */
29  public class IP6Mechanism extends IP4Mechanism {
30  
31      /**
32       * ABNF: IP6 = "ip6" ":" ip6-network [ ip6-cidr-length ]
33       */
34      public static final String REGEX = "[iI][pP][6]"
35              + "\\:([0-9A-Fa-f\\:\\.]+)" + "(?:" + IP6_CIDR_LENGTH_REGEX + ")?";
36  
37      /**
38       * @see org.apache.james.jspf.terms.IP4Mechanism#isValidAddress(String)
39       */
40      protected boolean isValidAddress(String ipString) {
41          return Inet6Util.isValidIP6Address(ipString);
42      }
43  
44      /**
45       * @see org.apache.james.jspf.terms.IP4Mechanism#getMaxCidr()
46       */
47      protected int getMaxCidr() {
48          return 128;
49      }
50      
51  
52      /**
53       * @see java.lang.Object#toString()
54       */
55      public String toString() {
56          if (getIp().getMaskLength() == getMaxCidr()) {
57              return "ip6:"+getIp().getIPAddress();
58          } else {
59              return "ip6:"+getIp().getIPAddress()+"/"+getIp().getMaskLength();
60          }
61      }
62  
63  }