51 lines
1.5 KiB
Java
51 lines
1.5 KiB
Java
package de.mc8051.arma3launcher.repo;
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public class Version implements Comparable<Version> {
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private String version;
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public final String get() {
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return this.version;
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}
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public Version(String version) throws IllegalArgumentException {
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if (version == null)
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throw new IllegalArgumentException("Version can not be null");
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if (!version.matches("[0-9]+(\\.[0-9]+)*"))
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throw new IllegalArgumentException("Invalid version format");
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this.version = version;
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}
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@Override
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public int compareTo(Version that) {
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if (that == null)
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return 1;
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String[] thisParts = this.get().split("\\.");
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String[] thatParts = that.get().split("\\.");
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int length = Math.max(thisParts.length, thatParts.length);
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for (int i = 0; i < length; i++) {
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int thisPart = i < thisParts.length ?
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Integer.parseInt(thisParts[i]) : 0;
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int thatPart = i < thatParts.length ?
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Integer.parseInt(thatParts[i]) : 0;
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if (thisPart < thatPart)
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return -1;
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if (thisPart > thatPart)
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return 1;
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}
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return 0;
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}
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@Override
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public boolean equals(Object that) {
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if (this == that)
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return true;
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if (that == null)
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return false;
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if (this.getClass() != that.getClass())
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return false;
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return this.compareTo((Version) that) == 0;
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}
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}
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