com.wavemaker.commons.util.Version Maven / Gradle / Ivy
/**
* Copyright (C) 2020 WaveMaker, 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,
* 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 com.wavemaker.commons.util;
/**
* @author Uday Shankar
*/
public class Version implements Comparable {
private String version;
public final String get() {
return this.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, " + version);
}
this.version = version;
}
@Override
public int compareTo(Version that) {
if (that == null) {
return 1;
}
String[] thisParts = this.get().split("\\.");
String[] thatParts = that.get().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 int hashCode() {
return get().hashCode();
}
@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;
}
@Override
public String toString() {
return "Version{" +
"version='" + version + '\'' +
'}';
}
public boolean lessThan(Version otherVersion) {
return lessThan(this.get(), otherVersion.get());
}
public boolean lessThanOrEqualTo(Version otherVersion) {
return lessThanOrEqualTo(this.get(), otherVersion.get());
}
public boolean greaterThan(Version otherVersion) {
return greaterThan(this.get(), otherVersion.get());
}
public boolean greaterThanOrEqualTo(Version otherVersion) {
return greaterThanOrEqualTo(this.get(), otherVersion.get());
}
public static boolean lessThan(String v1, String v2) {
return new Version(v1).compareTo(new Version(v2)) < 0;
}
public static boolean lessThanOrEqualTo(String v1, String v2) {
return new Version(v1).compareTo(new Version(v2)) <= 0;
}
public static boolean greaterThan(String v1, String v2) {
return new Version(v1).compareTo(new Version(v2)) > 0;
}
public static boolean greaterThanOrEqualTo(String v1, String v2) {
return new Version(v1).compareTo(new Version(v2)) >= 0;
}
}