blob: b88d8cfecc5411276f56187b00c351e54521654a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.support;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Utility class which represents a version
*/
public class Version implements Comparable<Version> {
private final int mMajor;
private final int mMinor;
private final int mPatch;
private final String mExtra;
public Version(String versionString) {
Pattern compile = Pattern.compile("^(\\d+)\\.(\\d+)\\.(\\d+)(-.+)?$");
Matcher matcher = compile.matcher(versionString);
if (!matcher.matches()) {
throw new IllegalArgumentException("Can not parse version: " + versionString);
}
mMajor = Integer.parseInt(matcher.group(1));
mMinor = Integer.parseInt(matcher.group(2));
mPatch = Integer.parseInt(matcher.group(3));
mExtra = matcher.groupCount() == 4 ? matcher.group(4) : null;
}
@Override
public int compareTo(Version version) {
return mMajor != version.mMajor ? mMajor - version.mMajor : mMinor - version.mMinor;
}
public boolean isPatch() {
return mPatch != 0;
}
public boolean isSnapshot() {
return "-SNAPSHOT".equals(mExtra);
}
public int getMajor() {
return mMajor;
}
public int getMinor() {
return mMinor;
}
public int getPatch() {
return mPatch;
}
public String getExtra() {
return mExtra;
}
@Override
public String toString() {
return mMajor + "." + mMinor + "." + mPatch + (mExtra != null ? mExtra : "");
}
}
|
