| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2014 Ericsson |
| 3 | * |
| 4 | * All rights reserved. This program and the accompanying materials are |
| 5 | * made available under the terms of the Eclipse Public License v1.0 which |
| 6 | * accompanies this distribution, and is available at |
| 7 | * http://www.eclipse.org/legal/epl-v10.html |
| 8 | * |
| 9 | * Contributors: |
| 10 | * Vincent Perot - Initial API and implementation |
| 11 | *******************************************************************************/ |
| 12 | |
| 13 | package org.eclipse.linuxtools.internal.pcap.core.endpoint; |
| 14 | |
| 15 | import org.eclipse.jdt.annotation.Nullable; |
| 16 | import org.eclipse.linuxtools.internal.pcap.core.packet.Packet; |
| 17 | |
| 18 | /** |
| 19 | * Class that represents a pair of endpoints. This is used to find a packet |
| 20 | * stream between to endpoints. |
| 21 | * |
| 22 | * @author Vincent Perot |
| 23 | */ |
| 24 | public class ProtocolEndpointPair { |
| 25 | |
| 26 | private final ProtocolEndpoint fEndpointA; |
| 27 | private final ProtocolEndpoint fEndpointB; |
| 28 | |
| 29 | /** |
| 30 | * Constructor of the class {@link ProtocolEndpointPair}. It constructs a |
| 31 | * {@link ProtocolEndpointPair} object from a packet. |
| 32 | * |
| 33 | * @param packet |
| 34 | * The packet that contains the endpoints. |
| 35 | */ |
| 36 | public ProtocolEndpointPair(Packet packet) { |
| 37 | fEndpointA = packet.getSourceEndpoint(); |
| 38 | fEndpointB = packet.getDestinationEndpoint(); |
| 39 | } |
| 40 | |
| 41 | /** |
| 42 | * Getter method that returns the first endpoint of the pair. |
| 43 | * |
| 44 | * @return The first endpoint. |
| 45 | */ |
| 46 | public ProtocolEndpoint getFirstEndpoint() { |
| 47 | return fEndpointA; |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * Getter method that returns the second endpoint of the pair. |
| 52 | * |
| 53 | * @return The second endpoint. |
| 54 | */ |
| 55 | public ProtocolEndpoint getSecondEndpoint() { |
| 56 | return fEndpointB; |
| 57 | } |
| 58 | |
| 59 | /** |
| 60 | * Constructor of the class {@link ProtocolEndpointPair}. It constructs a |
| 61 | * {@link ProtocolEndpointPair} object from two endpoints. |
| 62 | * |
| 63 | * @param endpointA |
| 64 | * The first endpoint. |
| 65 | * @param endpointB |
| 66 | * The second endpoint. |
| 67 | */ |
| 68 | public ProtocolEndpointPair(ProtocolEndpoint endpointA, ProtocolEndpoint endpointB) { |
| 69 | fEndpointA = endpointA; |
| 70 | fEndpointB = endpointB; |
| 71 | } |
| 72 | |
| 73 | @Override |
| 74 | public int hashCode() { |
| 75 | final int prime = 31; |
| 76 | int result = 1; |
| 77 | result = prime * result + fEndpointA.hashCode() * fEndpointB.hashCode(); |
| 78 | return result; |
| 79 | } |
| 80 | |
| 81 | @Override |
| 82 | public boolean equals(@Nullable Object obj) { |
| 83 | |
| 84 | if (this == obj) { |
| 85 | return true; |
| 86 | } |
| 87 | if (!(obj instanceof ProtocolEndpointPair)) { |
| 88 | return false; |
| 89 | } |
| 90 | ProtocolEndpointPair other = (ProtocolEndpointPair) obj; |
| 91 | |
| 92 | return (this.fEndpointA.equals(other.fEndpointA) && this.fEndpointB.equals(other.fEndpointB)) || |
| 93 | (this.fEndpointA.equals(other.fEndpointB) && this.fEndpointB.equals(other.fEndpointA)); |
| 94 | } |
| 95 | |
| 96 | } |