/*
* 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;
import java.util.Arrays;
import org.jboss.netty.buffer.ChannelBuffer;
import org.openflow.util.U16;
/**
* Represents an ofp_echo_request message
*
* @author Rob Sherwood (rob.sherwood@stanford.edu)
*/
public class OFEchoRequest extends OFMessage {
public static int MINIMUM_LENGTH = 8;
byte[] payload;
public OFEchoRequest() {
super();
this.type = OFType.ECHO_REQUEST;
this.length = U16.t(MINIMUM_LENGTH);
}
@Override
public void readFrom(ChannelBuffer bb) {
super.readFrom(bb);
int datalen = this.getLengthU() - MINIMUM_LENGTH;
if (datalen > 0) {
this.payload = new byte[datalen];
bb.readBytes(payload);
}
}
/**
* @return the payload
*/
public byte[] getPayload() {
return payload;
}
/**
* @param payload
* the payload to set
*/
public void setPayload(byte[] payload) {
this.payload = payload;
}
@Override
public void writeTo(ChannelBuffer bb) {
super.writeTo(bb);
if (payload != null)
bb.writeBytes(payload);
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = super.hashCode();
result = prime * result + Arrays.hashCode(payload);
return result;
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (!super.equals(obj))
return false;
if (getClass() != obj.getClass())
return false;
OFEchoRequest other = (OFEchoRequest) obj;
if (!Arrays.equals(payload, other.payload))
return false;
return true;
}
}