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/*
* Copyright 2014 Open Networking Laboratory
*
* 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.onlab.packet;
import java.util.Arrays;
import static org.onlab.packet.PacketUtils.*;
/**
*
*/
public class Data extends BasePacket {
protected byte[] data;
/**
*
*/
public Data() {
data = new byte[0];
}
/**
* @param data the data
*/
public Data(final byte[] data) {
this.data = data;
}
/**
* @return the data
*/
public byte[] getData() {
return this.data;
}
/**
* @param data
* the data to set
* @return self
*/
public Data setData(final byte[] data) {
this.data = data;
return this;
}
@Override
public byte[] serialize() {
return this.data;
}
@Override
public IPacket deserialize(final byte[] data, final int offset,
final int length) {
this.data = Arrays.copyOfRange(data, offset, data.length);
return this;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 1571;
int result = super.hashCode();
result = prime * result + Arrays.hashCode(this.data);
return result;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(final Object obj) {
if (this == obj) {
return true;
}
if (!super.equals(obj)) {
return false;
}
if (!(obj instanceof Data)) {
return false;
}
final Data other = (Data) obj;
if (!Arrays.equals(this.data, other.data)) {
return false;
}
return true;
}
/**
* Deserializer function for generic payload data.
*
* @return deserializer function
*/
public static Deserializer<Data> deserializer() {
return (data, offset, length) -> {
// Allow zero-length data for now
if (length == 0) {
return new Data();
}
checkInput(data, offset, length, 1);
Data dataObject = new Data();
dataObject.data = Arrays.copyOfRange(data, offset, data.length);
return dataObject;
};
}
}
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