1 /*

     2  * Copyright (c) 2009, 2013, 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 com.sun.nio.sctp.Association;

    28 import com.sun.nio.sctp.AssociationChangeNotification;

    29 import java.lang.annotation.Native;

    30 

    31 /**

    32  * An implementation of AssociationChangeNotification

    33  */

    34 public class AssociationChange extends AssociationChangeNotification

    35     implements SctpNotification

    36 {

    37     /* static final ints so that they can be referenced from native */

    38     @Native private final static int SCTP_COMM_UP = 1;

    39     @Native private final static int SCTP_COMM_LOST = 2;

    40     @Native private final static int SCTP_RESTART = 3;

    41     @Native private final static int SCTP_SHUTDOWN = 4;

    42     @Native private final static int SCTP_CANT_START = 5;

    43 

    44     private Association association;

    45 

    46     /* assocId is used to lookup the association before the notification is

    47      * returned to user code */

    48     private int assocId;

    49     private AssocChangeEvent event;

    50     private int maxOutStreams;

    51     private int maxInStreams;

    52 

    53     /* Invoked from native */

    54     private AssociationChange(int assocId,

    55                               int intEvent,

    56                               int maxOutStreams,

    57                               int maxInStreams) {

    58         switch (intEvent) {

    59             case SCTP_COMM_UP :

    60                 this.event = AssocChangeEvent.COMM_UP;

    61                 break;

    62             case SCTP_COMM_LOST :

    63                 this.event = AssocChangeEvent.COMM_LOST;

    64                 break;

    65             case SCTP_RESTART :

    66                 this.event = AssocChangeEvent.RESTART;

    67                 break;

    68             case SCTP_SHUTDOWN :

    69                 this.event = AssocChangeEvent.SHUTDOWN;

    70                 break;

    71             case SCTP_CANT_START :

    72                 this.event = AssocChangeEvent.CANT_START;

    73                 break;

    74             default :

    75                 throw new AssertionError(

    76                       "Unknown Association Change Event type: " + intEvent);

    77         }

    78 

    79         this.assocId = assocId;

    80         this.maxOutStreams = maxOutStreams;

    81         this.maxInStreams = maxInStreams;

    82     }

    83 

    84     @Override

    85     public int assocId() {

    86         return assocId;

    87     }

    88 

    89     @Override

    90     public void setAssociation(Association association) {

    91         this.association = association;

    92     }

    93 

    94     @Override

    95     public Association association() {

    96         assert association != null;

    97         return association;

    98     }

    99 

   100     @Override

   101     public AssocChangeEvent event() {

   102         return event;

   103     }

   104 

   105     int maxOutStreams() {

   106         return maxOutStreams;

   107     }

   108 

   109     int maxInStreams() {

   110         return maxInStreams;

   111     }

   112 

   113     @Override

   114     public String toString() {

   115         StringBuilder sb = new StringBuilder();

   116         sb.append(super.toString()).append(" [");

   117         sb.append("Association:").append(association);

   118         sb.append(", Event: ").append(event).append("]");

   119         return sb.toString();

   120     }

   121 }