OFPortStatisticsRequest.java

/*
 * Copyright (c) 2013 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:
 *
 *    Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior 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. 
 */

package org.openflow.protocol.statistics;


import org.jboss.netty.buffer.ChannelBuffer;

/**
 * Represents an ofp_port_stats_request structure
 * @author David Erickson (daviderickson@cs.stanford.edu)
 */
public class OFPortStatisticsRequest implements OFStatistics {
    protected short portNumber;

    /**
     * @return the portNumber
     */
    public short getPortNumber() {
        return portNumber;
    }

    /**
     * @param portNumber the portNumber to set
     */
    public void setPortNumber(short portNumber) {
        this.portNumber = portNumber;
    }

    @Override
    public int getLength() {
        return 8;
    }

    @Override
    public void readFrom(ChannelBuffer data) {
        this.portNumber = data.readShort();
        data.readShort(); // pad
        data.readInt(); // pad
    }

    @Override
    public void writeTo(ChannelBuffer data) {
        data.writeShort(this.portNumber);
        data.writeShort((short) 0); // pad
        data.writeInt(0); // pad
    }

    @Override
    public int hashCode() {
        final int prime = 433;
        int result = 1;
        result = prime * result + portNumber;
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (!(obj instanceof OFPortStatisticsRequest)) {
            return false;
        }
        OFPortStatisticsRequest other = (OFPortStatisticsRequest) obj;
        if (portNumber != other.portNumber) {
            return false;
        }
        return true;
    }
}