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5255c030 VP |
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 | ||
71f2817f | 13 | package org.eclipse.tracecompass.internal.pcap.core.protocol.ethernet2; |
5255c030 VP |
14 | |
15 | import java.util.Arrays; | |
16 | ||
17 | import org.eclipse.jdt.annotation.Nullable; | |
71f2817f AM |
18 | import org.eclipse.tracecompass.internal.pcap.core.endpoint.ProtocolEndpoint; |
19 | import org.eclipse.tracecompass.internal.pcap.core.util.ConversionHelper; | |
5255c030 VP |
20 | |
21 | /** | |
22 | * Class that extends the {@link ProtocolEndpoint} class. It represents the | |
23 | * endpoint at an Ethernet II level. | |
24 | * | |
25 | * @author Vincent Perot | |
26 | */ | |
27 | public class EthernetIIEndpoint extends ProtocolEndpoint { | |
28 | ||
29 | private final byte[] fMacAddress; | |
30 | ||
31 | /** | |
32 | * Constructor of the {@link EthernetIIEndpoint} class. It takes a packet to | |
33 | * get its endpoint. Since every packet has two endpoints (source and | |
34 | * destination), the isSourceEndpoint parameter is used to specify which | |
35 | * endpoint to take. | |
36 | * | |
37 | * @param packet | |
38 | * The packet that contains the endpoints. | |
39 | * @param isSourceEndpoint | |
40 | * Whether to take the source or the destination endpoint of the | |
41 | * packet. | |
42 | */ | |
43 | public EthernetIIEndpoint(EthernetIIPacket packet, boolean isSourceEndpoint) { | |
44 | super(packet, isSourceEndpoint); | |
45 | fMacAddress = isSourceEndpoint ? packet.getSourceMacAddress() : packet.getDestinationMacAddress(); | |
46 | } | |
47 | ||
48 | @Override | |
49 | public int hashCode() { | |
50 | final int prime = 31; | |
51 | int result = 1; | |
52 | ProtocolEndpoint endpoint = getParentEndpoint(); | |
53 | if (endpoint == null) { | |
54 | result = 0; | |
55 | } else { | |
56 | result = endpoint.hashCode(); | |
57 | } | |
58 | result = prime * result + Arrays.hashCode(fMacAddress); | |
59 | return result; | |
60 | } | |
61 | ||
62 | @Override | |
63 | public boolean equals(@Nullable Object obj) { | |
64 | if (this == obj) { | |
65 | return true; | |
66 | } | |
67 | if (!(obj instanceof EthernetIIEndpoint)) { | |
68 | return false; | |
69 | } | |
70 | ||
71 | EthernetIIEndpoint other = (EthernetIIEndpoint) obj; | |
72 | ||
73 | // Check on layer | |
74 | boolean localEquals = Arrays.equals(fMacAddress, other.fMacAddress); | |
75 | if (!localEquals) { | |
76 | return false; | |
77 | } | |
78 | ||
79 | // Check above layers. | |
80 | ProtocolEndpoint endpoint = getParentEndpoint(); | |
81 | if (endpoint != null) { | |
82 | return endpoint.equals(other.getParentEndpoint()); | |
83 | } | |
84 | return true; | |
85 | } | |
86 | ||
87 | @Override | |
88 | public String toString() { | |
89 | ProtocolEndpoint endpoint = getParentEndpoint(); | |
90 | if (endpoint == null) { | |
91 | return ConversionHelper.toMacAddress(fMacAddress); | |
92 | } | |
d6fca387 | 93 | return (endpoint.toString().equals(EMPTY_STRING) ? |
5255c030 VP |
94 | ConversionHelper.toMacAddress(fMacAddress) : |
95 | endpoint.toString() + '/' + ConversionHelper.toMacAddress(fMacAddress)); | |
96 | ||
97 | } | |
98 | } |