001 package org.apache.maven.toolchain; 002 003 /* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022 import org.apache.maven.artifact.versioning.DefaultArtifactVersion; 023 import org.apache.maven.artifact.versioning.InvalidVersionSpecificationException; 024 import org.apache.maven.artifact.versioning.VersionRange; 025 026 /** 027 * 028 * @author mkleint 029 */ 030 public final class RequirementMatcherFactory 031 { 032 private RequirementMatcherFactory() 033 { 034 } 035 036 public static RequirementMatcher createExactMatcher( String provideValue ) 037 { 038 return new ExactMatcher( provideValue ); 039 } 040 041 public static RequirementMatcher createVersionMatcher( String provideValue ) 042 { 043 return new VersionMatcher( provideValue ); 044 } 045 046 private static final class ExactMatcher 047 implements RequirementMatcher 048 { 049 050 private String provides; 051 052 private ExactMatcher( String provides ) 053 { 054 this.provides = provides; 055 } 056 057 public boolean matches( String requirement ) 058 { 059 return provides.equalsIgnoreCase( requirement ); 060 } 061 } 062 063 private static final class VersionMatcher 064 implements RequirementMatcher 065 { 066 067 DefaultArtifactVersion version; 068 069 private VersionMatcher( String version ) 070 { 071 this.version = new DefaultArtifactVersion( version ); 072 } 073 074 public boolean matches( String requirement ) 075 { 076 try 077 { 078 VersionRange range = VersionRange.createFromVersionSpec( requirement ); 079 if ( range.hasRestrictions() ) 080 { 081 return range.containsVersion( version ); 082 } 083 else 084 { 085 return range.getRecommendedVersion().compareTo( version ) == 0; 086 } 087 } 088 catch ( InvalidVersionSpecificationException ex ) 089 { 090 //TODO error reporting 091 ex.printStackTrace(); 092 return false; 093 } 094 } 095 } 096 }