/* Copyright (C) 2017-2024 Andreas Shimokawa, Carsten Pfeiffer, Daniel
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Dakhno, Michal Novotny
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This file is part of Gadgetbridge.
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Gadgetbridge is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Gadgetbridge is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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package nodomain.freeyourgadget.gadgetbridge.util;
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import androidx.annotation.NonNull;
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// http://stackoverflow.com/questions/198431/how-do-you-compare-two-version-strings-in-java
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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) {
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if(version == null)
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throw new IllegalArgumentException("Version can not be null");
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version = version.trim();
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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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public boolean smallerOrEqualThan(Version that){
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return !greaterThan(that);
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}
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public boolean greaterOrEqualThan(Version that){
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return !smallerThan(that);
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}
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public boolean smallerThan(Version that){
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return compareTo(that) == -1;
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}
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public boolean greaterThan(Version that){
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return compareTo(that) == 1;
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}
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public boolean sameAs(Version that){
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return compareTo(that) == 0;
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}
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@Override 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 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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@Override
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public int hashCode() {
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return version.hashCode();
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}
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@NonNull
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@Override
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public String toString() {
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return version;
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}
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}
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