| // *************************************************************************************************************************** |
| // * 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.juneau.internal; |
| |
| import static org.apache.juneau.internal.StringUtils.*; |
| |
| /** |
| * Represents an OSGi-style version range like <js>"1.2"</js> or <js>"[1.0,2.0)"</js>. |
| * |
| * <p> |
| * The range can be any of the following formats: |
| * <ul> |
| * <li><js>"[0,1.0)"</js> = Less than 1.0. 1.0 and 1.0.0 does not match. |
| * <li><js>"[0,1.0]"</js> = Less than or equal to 1.0. Note that 1.0.1 will match. |
| * <li><js>"1.0"</js> = At least 1.0. 1.0 and 2.0 will match. |
| * </ul> |
| */ |
| public class VersionRange { |
| |
| private final Version minVersion, maxVersion; |
| private final boolean minExclusive, maxExclusive; |
| |
| /** |
| * Constructor. |
| * |
| * @param range The range string to parse. |
| */ |
| public VersionRange(String range) { |
| range = range.trim(); |
| if (! range.isEmpty()) { |
| char c1 = range.charAt(0), c2 = range.charAt(range.length()-1); |
| int c = range.indexOf(','); |
| if (c > -1 && (c1 == '[' || c1 == '(') && (c2 == ']' || c2 == ')')) { |
| String v1 = range.substring(1, c), v2 = range.substring(c+1, range.length()-1); |
| minVersion = new Version(v1); |
| maxVersion = new Version(v2); |
| minExclusive = c1 == '('; |
| maxExclusive = c2 == ')'; |
| } else { |
| minVersion = new Version(range); |
| maxVersion = null; |
| minExclusive = maxExclusive = false; |
| } |
| } else { |
| minVersion = maxVersion = null; |
| minExclusive = maxExclusive = false; |
| } |
| } |
| |
| /** |
| * Returns <jk>true</jk> if the specified version string matches this version range. |
| * |
| * @param v The version string (e.g. <js>"1.2.3"</js>) |
| * @return <jk>true</jk> if the specified version string matches this version range. |
| */ |
| public boolean matches(String v) { |
| if (isEmpty(v)) |
| return (minVersion == null && maxVersion == null); |
| Version ver = new Version(v); |
| if (minVersion != null && ! ver.isAtLeast(minVersion, minExclusive)) |
| return false; |
| if (maxVersion != null && ! ver.isAtMost(maxVersion, maxExclusive)) |
| return false; |
| return true; |
| } |
| |
| @Override /* Object */ |
| public String toString() { |
| return (minExclusive ? "(" : "[") + minVersion + ',' + maxVersion + (maxExclusive ? ")" : "]"); |
| } |
| } |