forked from tikv/client-java
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathStoreVersion.java
More file actions
61 lines (53 loc) · 1.68 KB
/
StoreVersion.java
File metadata and controls
61 lines (53 loc) · 1.68 KB
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
/*
* Copyright 2020 PingCAP, Inc.
*
* 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,
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.tikv.common;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class StoreVersion {
private static final int SCALE = 10000;
private final Logger logger = LoggerFactory.getLogger(this.getClass());
private int v0 = 9999;
private int v1 = 9999;
private int v2 = 9999;
private StoreVersion(String version) {
try {
// tiflash version starts with `v`
if (version.startsWith("v")) {
version = version.substring(1);
}
String[] parts = version.split("[.-]");
if (parts.length > 0) {
v0 = Integer.parseInt(parts[0]);
}
if (parts.length > 1) {
v1 = Integer.parseInt(parts[1]);
}
if (parts.length > 2) {
v2 = Integer.parseInt(parts[2]);
}
} catch (Exception e) {
logger.warn("invalid store version: " + version, e);
}
}
public static int compareTo(String v0, String v1) {
return new StoreVersion(v0).toIntVersion() - new StoreVersion(v1).toIntVersion();
}
private int toIntVersion() {
return v0 * SCALE * SCALE + v1 * SCALE + v2;
}
private boolean greatThan(StoreVersion other) {
return toIntVersion() > other.toIntVersion();
}
}