Commit | Line | Data |
---|---|---|
5e7913a4 GB |
1 | /******************************************************************************* |
2 | * Copyright (c) 2017 École Polytechnique de Montréal | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials | |
5 | * are made available under the terms of the Eclipse Public License v1.0 | |
6 | * which accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | *******************************************************************************/ | |
9 | ||
dad84716 | 10 | package org.eclipse.tracecompass.datastore.core.interval; |
5e7913a4 GB |
11 | |
12 | import java.util.Objects; | |
13 | import java.util.StringJoiner; | |
14 | ||
15 | import org.eclipse.jdt.annotation.NonNull; | |
16 | import org.eclipse.jdt.annotation.Nullable; | |
88177c18 | 17 | import org.eclipse.tracecompass.datastore.core.serialization.ISafeByteBufferWriter; |
5e7913a4 GB |
18 | |
19 | /** | |
20 | * Basic implementation of {@link IHTInterval}. | |
21 | * | |
22 | * @author Geneviève Bastien | |
88177c18 | 23 | * @since 1.1 |
5e7913a4 GB |
24 | */ |
25 | public class HTInterval implements IHTInterval { | |
26 | ||
27 | private final long fStart; | |
28 | private final long fEnd; | |
29 | ||
30 | /** | |
31 | * The object to use to read a BaseHtObject from the disk | |
32 | */ | |
33 | public static final IHTIntervalReader<HTInterval> INTERVAL_READER = | |
34 | (buffer) -> new HTInterval(buffer.getLong(), buffer.getLong()); | |
35 | ||
36 | /** | |
37 | * Create a new segment. | |
38 | * | |
39 | * The end position should be equal to or greater than the start position. | |
40 | * | |
41 | * @param start | |
42 | * Start position of the segment | |
43 | * @param end | |
44 | * End position of the segment | |
45 | */ | |
46 | public HTInterval(long start, long end) { | |
47 | if (end < start) { | |
48 | throw new IllegalArgumentException(); | |
49 | } | |
50 | fStart = start; | |
51 | fEnd = end; | |
52 | } | |
53 | ||
54 | @Override | |
55 | public long getStart() { | |
56 | return fStart; | |
57 | } | |
58 | ||
59 | @Override | |
60 | public long getEnd() { | |
61 | return fEnd; | |
62 | } | |
63 | ||
64 | @Override | |
65 | public String toString() { | |
66 | return (new StringJoiner(", ", "[", "]")) //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ | |
67 | .add(String.valueOf(fStart)) | |
68 | .add(String.valueOf(fEnd)) | |
69 | .toString(); | |
70 | } | |
71 | ||
72 | @Override | |
73 | public int getSizeOnDisk() { | |
74 | return 2 * Long.BYTES; | |
75 | } | |
76 | ||
77 | @Override | |
78 | public void writeSegment(@NonNull ISafeByteBufferWriter buffer) { | |
79 | buffer.putLong(fStart); | |
80 | buffer.putLong(fEnd); | |
81 | } | |
82 | ||
83 | @Override | |
84 | public int hashCode() { | |
85 | return Objects.hash(fStart, fEnd); | |
86 | } | |
87 | ||
88 | @Override | |
89 | public boolean equals(@Nullable Object obj) { | |
90 | if (obj == null) { | |
91 | return false; | |
92 | } | |
93 | if (obj.getClass() != getClass()) { | |
94 | return false; | |
95 | } | |
96 | HTInterval other = (HTInterval) obj; | |
97 | return (fStart == other.fStart | |
98 | && fEnd == other.fEnd); | |
99 | } | |
100 | ||
101 | } |