| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to you 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 org.apache.pivot.util; |
| |
| import java.io.Serializable; |
| |
| /** |
| * Represents a version number. Version numbers are defined as: |
| * <p> |
| * <i>major</i>.<i>minor</i>.<i>maintenance</i>_<i>update</i> |
| * <p> |
| * for example, "JDK 1.6.0_10". |
| */ |
| public class Version implements Comparable<Version>, Serializable { |
| private static final long serialVersionUID = -3677773163272115116L; |
| |
| private byte majorRevision = 0; |
| private byte minorRevision = 0; |
| private byte maintenanceRevision = 0; |
| private byte updateRevision = 0; |
| private String build = null; |
| |
| public Version(int majorRevision, int minorRevision, int maintenanceRevision, |
| int updateRevision) { |
| this(majorRevision, minorRevision, maintenanceRevision, updateRevision, null); |
| } |
| |
| public Version(int majorRevision, int minorRevision, int maintenanceRevision, |
| int updateRevision, String build) { |
| if (majorRevision > 0x7f) { |
| throw new IllegalArgumentException("majorRevision must be less than " |
| + 0x7f + "."); |
| } |
| |
| if (minorRevision > 0xff) { |
| throw new IllegalArgumentException("minorRevision must be less than " |
| + 0xff + "."); |
| } |
| |
| if (maintenanceRevision > 0xff) { |
| throw new IllegalArgumentException("maintenanceRevision must be less than " |
| + 0xff + "."); |
| } |
| |
| if (updateRevision > 0xff) { |
| throw new IllegalArgumentException("updateRevision must be less than " |
| + 0xff + "."); |
| } |
| |
| this.majorRevision = (byte)majorRevision; |
| this.minorRevision = (byte)minorRevision; |
| this.maintenanceRevision = (byte)maintenanceRevision; |
| this.updateRevision = (byte)updateRevision; |
| this.build = build; |
| } |
| |
| public byte getMajorRevision() { |
| return majorRevision; |
| } |
| |
| public byte getMinorRevision() { |
| return minorRevision; |
| } |
| |
| public byte getMaintenanceRevision() { |
| return maintenanceRevision; |
| } |
| |
| public byte getUpdateRevision() { |
| return updateRevision; |
| } |
| |
| public int getNumber() { |
| int number = ((majorRevision) & 0xff) << (8 * 3) |
| | ((minorRevision) & 0xff) << (8 * 2) |
| | ((maintenanceRevision) & 0xff) << (8 * 1) |
| | ((updateRevision) & 0xff) << (8 * 0); |
| |
| return number; |
| } |
| |
| @Override |
| public int compareTo(Version version) { |
| return (getNumber() - version.getNumber()); |
| } |
| |
| @Override |
| public boolean equals(Object object) { |
| return (object instanceof Version |
| && compareTo((Version)object) == 0); |
| } |
| |
| @Override |
| public int hashCode() { |
| return getNumber(); |
| } |
| |
| @Override |
| public String toString() { |
| String string = majorRevision |
| + "." + minorRevision |
| + "." + maintenanceRevision |
| + "_" + String.format("%02d", updateRevision); |
| |
| if (build != null) { |
| string += "-" + build; |
| } |
| |
| return string; |
| } |
| |
| public static Version decode(String string) { |
| Version version = null; |
| |
| byte majorRevision = 0; |
| byte minorRevision = 0; |
| byte maintenanceRevision = 0; |
| byte updateRevision = 0; |
| String build = null; |
| |
| String revision; |
| int i = string.indexOf("-"); |
| if (i == -1) { |
| revision = string; |
| } else { |
| revision = string.substring(0, i); |
| build = string.substring(i + 1); |
| } |
| |
| String[] revisionNumbers = revision.split("\\."); |
| |
| if (revisionNumbers.length > 0) { |
| majorRevision = Byte.parseByte(revisionNumbers[0]); |
| |
| if (revisionNumbers.length > 1) { |
| minorRevision = Byte.parseByte(revisionNumbers[1]); |
| |
| if (revisionNumbers.length > 2) { |
| String[] maintenanceRevisionNumbers = revisionNumbers[2].split("_"); |
| |
| if (maintenanceRevisionNumbers.length > 0) { |
| maintenanceRevision = Byte.parseByte(maintenanceRevisionNumbers[0]); |
| |
| if (maintenanceRevisionNumbers.length > 1) { |
| updateRevision = Byte.parseByte(maintenanceRevisionNumbers[1]); |
| } |
| } |
| } |
| } |
| |
| version = new Version(majorRevision, minorRevision, maintenanceRevision, |
| updateRevision, build); |
| } |
| |
| return version; |
| } |
| } |