/*

 * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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package sun.nio.ch.sctp;

import com.sun.nio.sctp.Association;

import com.sun.nio.sctp.AssociationChangeNotification;

import java.lang.annotation.Native;

/**

 * An implementation of AssociationChangeNotification

 */

public class AssociationChange extends AssociationChangeNotification

    implements SctpNotification

{

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

    @Native private final static int SCTP_COMM_UP = 1;

    @Native private final static int SCTP_COMM_LOST = 2;

    @Native private final static int SCTP_RESTART = 3;

    @Native private final static int SCTP_SHUTDOWN = 4;

    @Native private final static int SCTP_CANT_START = 5;

    private Association association;

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

     * returned to user code */

    private int assocId;

    private AssocChangeEvent event;

    private int maxOutStreams;

    private int maxInStreams;

    /* Invoked from native */

    private AssociationChange(int assocId,

                              int intEvent,

                              int maxOutStreams,

                              int maxInStreams) {

        switch (intEvent) {

            case SCTP_COMM_UP :

                this.event = AssocChangeEvent.COMM_UP;

                break;

            case SCTP_COMM_LOST :

                this.event = AssocChangeEvent.COMM_LOST;

                break;

            case SCTP_RESTART :

                this.event = AssocChangeEvent.RESTART;

                break;

            case SCTP_SHUTDOWN :

                this.event = AssocChangeEvent.SHUTDOWN;

                break;

            case SCTP_CANT_START :

                this.event = AssocChangeEvent.CANT_START;

                break;

            default :

                throw new AssertionError(

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

        }

        this.assocId = assocId;

        this.maxOutStreams = maxOutStreams;

        this.maxInStreams = maxInStreams;

    }

    @Override

    public int assocId() {

        return assocId;

    }

    @Override

    public void setAssociation(Association association) {

        this.association = association;

    }

    @Override

    public Association association() {

        assert association != null;

        return association;

    }

    @Override

    public AssocChangeEvent event() {

        return event;

    }

    int maxOutStreams() {

        return maxOutStreams;

    }

    int maxInStreams() {

        return maxInStreams;

    }

    @Override

    public String toString() {

        StringBuilder sb = new StringBuilder();

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

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

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

        return sb.toString();

    }

}