2 * Copyright (c) 2016 Pantheon Technologies s.r.o. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.yangtools.concepts;
10 import static com.google.common.base.Preconditions.checkArgument;
12 import com.google.common.annotations.Beta;
13 import java.io.Serializable;
14 import java.util.Objects;
15 import javax.annotation.Nonnull;
18 * A single version according to <a href="http://semver.org/">Semantic Versioning</a>.
21 public final class SemVer implements Comparable<SemVer>, Serializable {
22 private static final long serialVersionUID = 1L;
23 private final int major;
24 private final int minor;
25 private final int patch;
27 private SemVer(final int major, final int minor, final int patch) {
28 checkArgument(major >= 0);
30 checkArgument(minor >= 0);
32 checkArgument(patch >= 0);
36 public static SemVer create(final int major) {
37 return create(major, 0);
40 public static SemVer create(final int major, final int minor) {
41 return create(major, minor, 0);
44 public static SemVer create(final int major, final int minor, final int patch) {
45 return new SemVer(major, minor, patch);
48 public static SemVer valueOf(@Nonnull final String str) {
49 final int minorIdx = str.indexOf('.');
51 return create(Integer.parseInt(str));
54 final String minorStr;
55 final int patchIdx = str.indexOf('.', minorIdx + 1);
57 minorStr = str.substring(minorIdx + 1);
58 return create(Integer.parseInt(str.substring(0, minorIdx), 10), Integer.parseInt(minorStr, 10));
61 minorStr = str.substring(minorIdx + 1, patchIdx);
62 return create(Integer.parseInt(str.substring(0, minorIdx), 10), Integer.parseInt(minorStr, 10),
63 Integer.parseInt(str.substring(patchIdx + 1), 10));
67 * Return the major version number.
69 * @return major version number
71 public int getMajor() {
76 * Return the minor version number.
78 * @return minor version number
80 public int getMinor() {
85 * Return the patch version number.
87 * @return patch version number
89 public int getPatch() {
94 public int compareTo(@Nonnull final SemVer other) {
95 int cmp = Integer.compare(major, other.major);
97 cmp = Integer.compare(minor, other.minor);
99 return Integer.compare(patch, other.patch);
107 public int hashCode() {
108 return Objects.hash(major, minor, patch);
112 public boolean equals(final Object obj) {
116 if (!(obj instanceof SemVer)) {
120 final SemVer o = (SemVer) obj;
121 return major == o.major && minor == o.minor && patch == o.patch;
125 public String toString() {
126 return major + "." + minor + "." + patch;