OFActionDataLayer.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. 
 */

/**
 * @author David Erickson (daviderickson@cs.stanford.edu) - Mar 11, 2010
 */
package org.openflow.protocol.action;

import java.util.Arrays;


import org.codehaus.jackson.map.annotate.JsonSerialize;
import org.jboss.netty.buffer.ChannelBuffer;
import org.openflow.protocol.OFPhysicalPort;
import org.sdnplatform.core.web.serializers.ByteArrayMACSerializer;

/**
 * Represents an ofp_action_dl_addr
 * @author David Erickson (daviderickson@cs.stanford.edu) - Mar 11, 2010
 */
public abstract class OFActionDataLayer extends OFAction {
    public static int MINIMUM_LENGTH = 16;

    protected byte[] dataLayerAddress;

    /**
     * @return the dataLayerAddress
     */
    @JsonSerialize(using=ByteArrayMACSerializer.class)
    public byte[] getDataLayerAddress() {
        return dataLayerAddress;
    }

    /**
     * @param dataLayerAddress the dataLayerAddress to set
     */
    public void setDataLayerAddress(byte[] dataLayerAddress) {
        this.dataLayerAddress = dataLayerAddress;
    }

    @Override
    public void readFrom(ChannelBuffer data) {
        super.readFrom(data);
        if (this.dataLayerAddress == null)
            this.dataLayerAddress = new byte[OFPhysicalPort.OFP_ETH_ALEN];
        data.readBytes(this.dataLayerAddress);
        data.readInt();
        data.readShort();
    }

    @Override
    public void writeTo(ChannelBuffer data) {
        super.writeTo(data);
        data.writeBytes(this.dataLayerAddress);
        data.writeInt(0);
        data.writeShort((short) 0);
    }

    @Override
    public int hashCode() {
        final int prime = 347;
        int result = super.hashCode();
        result = prime * result + Arrays.hashCode(dataLayerAddress);
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (!super.equals(obj)) {
            return false;
        }
        if (!(obj instanceof OFActionDataLayer)) {
            return false;
        }
        OFActionDataLayer other = (OFActionDataLayer) obj;
        if (!Arrays.equals(dataLayerAddress, other.dataLayerAddress)) {
            return false;
        }
        return true;
    }
}