1 /*
   2  * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package sun.nio.ch.sctp;
  26 
  27 import java.net.SocketAddress;
  28 import com.sun.nio.sctp.Association;
  29 import com.sun.nio.sctp.PeerAddressChangeNotification;
  30 
  31 /**
  32  * An implementation of PeerAddressChangeNotification
  33  */
  34 public class SctpPeerAddrChange extends PeerAddressChangeNotification
  35     implements SctpNotification
  36 {
  37     /* static final ints so that they can be referenced from native */
  38     private final static int SCTP_ADDR_AVAILABLE = 1;
  39     private final static int SCTP_ADDR_UNREACHABLE = 2;
  40     private final static int SCTP_ADDR_REMOVED = 3;
  41     private final static int SCTP_ADDR_ADDED = 4;
  42     private final static int SCTP_ADDR_MADE_PRIM = 5;
  43     private final static int SCTP_ADDR_CONFIRMED =6;
  44 
  45     private Association association;
  46 
  47     /* assocId is used to lookup the association before the notification is
  48      * returned to user code */
  49     private int assocId;
  50     private SocketAddress address;
  51     private AddressChangeEvent event;
  52 
  53     /* Invoked from native */
  54     private SctpPeerAddrChange(int assocId, SocketAddress address, int intEvent) {
  55         switch (intEvent) {
  56             case SCTP_ADDR_AVAILABLE :
  57                 this.event = AddressChangeEvent.ADDR_AVAILABLE;
  58                 break;
  59             case SCTP_ADDR_UNREACHABLE :
  60                 this.event = AddressChangeEvent.ADDR_UNREACHABLE;
  61                 break;
  62             case SCTP_ADDR_REMOVED :
  63                 this.event = AddressChangeEvent.ADDR_REMOVED;
  64                 break;
  65             case SCTP_ADDR_ADDED :
  66                 this.event = AddressChangeEvent.ADDR_ADDED;
  67                 break;
  68             case SCTP_ADDR_MADE_PRIM :
  69                 this.event = AddressChangeEvent.ADDR_MADE_PRIMARY;
  70                 break;
  71             case SCTP_ADDR_CONFIRMED :
  72                 this.event = AddressChangeEvent.ADDR_CONFIRMED;
  73                 break;
  74             default:
  75                 throw new AssertionError("Unknown event type");
  76         }
  77         this.assocId = assocId;
  78         this.address = address;
  79     }
  80 
  81     @Override
  82     public int assocId() {
  83         return assocId;
  84     }
  85 
  86     @Override
  87     public void setAssociation(Association association) {
  88         this.association = association;
  89     }
  90 
  91     @Override
  92     public SocketAddress address() {
  93         assert address != null;
  94         return address;
  95     }
  96 
  97     @Override
  98     public Association association() {
  99         assert association != null;
 100         return association;
 101     }
 102 
 103     @Override
 104     public AddressChangeEvent event() {
 105         assert event != null;
 106         return event;
 107     }
 108 
 109     @Override
 110     public String toString() {
 111         StringBuilder sb = new StringBuilder();
 112         sb.append(super.toString()).append(" [");
 113         sb.append("Address: ").append(address);
 114         sb.append(", Association:").append(association);
 115         sb.append(", Event: ").append(event).append("]");
 116         return sb.toString();
 117     }
 118 }
 119