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/*******************************************************************************
* Copyright (c) 2014 Ericsson
*
* All rights reserved. This program and the accompanying materials are
* made available under the terms of the Eclipse Public License v1.0 which
* accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Vincent Perot - Initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.internal.pcap.core.protocol.ethernet2;
import java.util.Arrays;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.linuxtools.internal.pcap.core.endpoint.ProtocolEndpoint;
import org.eclipse.linuxtools.internal.pcap.core.util.ConversionHelper;
/**
* Class that extends the {@link ProtocolEndpoint} class. It represents the
* endpoint at an Ethernet II level.
*
* @author Vincent Perot
*/
public class EthernetIIEndpoint extends ProtocolEndpoint {
private final byte[] fMacAddress;
/**
* Constructor of the {@link EthernetIIEndpoint} class. It takes a packet to
* get its endpoint. Since every packet has two endpoints (source and
* destination), the isSourceEndpoint parameter is used to specify which
* endpoint to take.
*
* @param packet
* The packet that contains the endpoints.
* @param isSourceEndpoint
* Whether to take the source or the destination endpoint of the
* packet.
*/
public EthernetIIEndpoint(EthernetIIPacket packet, boolean isSourceEndpoint) {
super(packet, isSourceEndpoint);
fMacAddress = isSourceEndpoint ? packet.getSourceMacAddress() : packet.getDestinationMacAddress();
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
ProtocolEndpoint endpoint = getParentEndpoint();
if (endpoint == null) {
result = 0;
} else {
result = endpoint.hashCode();
}
result = prime * result + Arrays.hashCode(fMacAddress);
return result;
}
@Override
public boolean equals(@Nullable Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof EthernetIIEndpoint)) {
return false;
}
EthernetIIEndpoint other = (EthernetIIEndpoint) obj;
// Check on layer
boolean localEquals = Arrays.equals(fMacAddress, other.fMacAddress);
if (!localEquals) {
return false;
}
// Check above layers.
ProtocolEndpoint endpoint = getParentEndpoint();
if (endpoint != null) {
return endpoint.equals(other.getParentEndpoint());
}
return true;
}
@Override
public String toString() {
ProtocolEndpoint endpoint = getParentEndpoint();
if (endpoint == null) {
return ConversionHelper.toMacAddress(fMacAddress);
}
return (endpoint.toString().equals(EMPTY_STRING) ?
ConversionHelper.toMacAddress(fMacAddress) :
endpoint.toString() + '/' + ConversionHelper.toMacAddress(fMacAddress));
}
}
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