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package me.shedaniel.rei.update;
public class Version implements Comparable<Version> {
private String version;
public Version(String version) {
if (version == null)
throw new IllegalArgumentException("Version can not be null");
if (!version.matches("[0-9]+(\\.[0-9]+)*"))
throw new IllegalArgumentException("Invalid version format");
this.version = version;
}
@Override
public final String toString() {
return this.version;
}
@Override
public int compareTo(Version other) {
if (other == null)
return 1;
String[] thisParts = this.toString().split("\\.");
String[] thatParts = other.toString().split("\\.");
int length = Math.max(thisParts.length, thatParts.length);
for(int i = 0; i < length; i++) {
int thisPart = i < thisParts.length ? Integer.parseInt(thisParts[i]) : 0;
int thatPart = i < thatParts.length ? Integer.parseInt(thatParts[i]) : 0;
if (thisPart < thatPart)
return -1;
if (thisPart > thatPart)
return 1;
}
return 0;
}
@Override
public boolean equals(Object that) {
if (this == that)
return true;
if (that == null)
return false;
if (this.getClass() != that.getClass())
return false;
return this.compareTo((Version) that) == 0;
}
}
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