/*
 * Copyright (c) 2011,2012 Big Switch Networks, Inc.
 *
 * Licensed under the Eclipse Public License, Version 1.0 (the
 * "License"); you may not use this file except in compliance with the
 * License. You may obtain a copy of the License at
 *
 *      http://www.eclipse.org/legal/epl-v10.html
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * permissions and limitations under the License.
 *
 * This file incorporates work covered by the following copyright and
 * permission notice:
 *
 *    Originally created by David Erickson, Stanford University
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the
 *    License. You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing,
 *    software distributed under the License is distributed on an "AS
 *    IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 *    express or implied. See the License for the specific language
 *    governing permissions and limitations under the License.
 */

/**
 * @author Srini
 */

package org.opendaylight.controller.hosttracker.internal;

import org.opendaylight.controller.sal.core.NodeConnector;

public class AttachmentPoint {
    NodeConnector port;
    long activeSince;
    long lastSeen;

    // Timeout for moving attachment points from OF/broadcast
    // domain to another.
    public static final long INACTIVITY_INTERVAL = 30000; // 30 seconds
    public static final long EXTERNAL_TO_EXTERNAL_TIMEOUT = 5000; // 5 seconds
    public static final long OPENFLOW_TO_EXTERNAL_TIMEOUT = 30000; // 30 seconds
    public static final long CONSISTENT_TIMEOUT = 30000; // 30 seconds

    public AttachmentPoint(NodeConnector port, long activeSince, long lastSeen) {
        this.port = port;
        this.activeSince = activeSince;
        this.lastSeen = lastSeen;
    }

    public AttachmentPoint(NodeConnector port, long lastSeen) {
        this.port = port;
        this.lastSeen = lastSeen;
        this.activeSince = lastSeen;
    }

    public AttachmentPoint(AttachmentPoint ap) {
        this.port = ap.port;
        this.activeSince = ap.activeSince;
        this.lastSeen = ap.lastSeen;
    }

    public NodeConnector getPort() {
        return port;
    }

    public void setPort(NodeConnector port) {
        this.port = port;
    }

    public long getActiveSince() {
        return activeSince;
    }

    public void setActiveSince(long activeSince) {
        this.activeSince = activeSince;
    }

    public long getLastSeen() {
        return lastSeen;
    }

    public void setLastSeen(long lastSeen) {
        if (this.lastSeen + INACTIVITY_INTERVAL < lastSeen)
            this.activeSince = lastSeen;
        if (this.lastSeen < lastSeen)
            this.lastSeen = lastSeen;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((port == null) ? 0 : port.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        AttachmentPoint other = (AttachmentPoint) obj;
        if (port == null) {
            if (other.port != null)
                return false;
        } else if (!port.equals(other.port))
            return false;
        return true;
    }

    @Override
    public String toString() {
        return "AttachmentPoint [port=" + port + ", activeSince=" + activeSince
                + ", lastSeen=" + lastSeen + "]";
    }
}