001 package org.apache.maven.model.profile.activation; 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 java.io.File; 023 024 import org.apache.maven.model.Activation; 025 import org.apache.maven.model.ActivationFile; 026 import org.apache.maven.model.Profile; 027 import org.apache.maven.model.building.ModelProblemCollector; 028 import org.apache.maven.model.building.ModelProblem.Severity; 029 import org.apache.maven.model.path.PathTranslator; 030 import org.apache.maven.model.profile.ProfileActivationContext; 031 import org.codehaus.plexus.component.annotations.Component; 032 import org.codehaus.plexus.component.annotations.Requirement; 033 import org.codehaus.plexus.interpolation.AbstractValueSource; 034 import org.codehaus.plexus.interpolation.MapBasedValueSource; 035 import org.codehaus.plexus.interpolation.RegexBasedInterpolator; 036 import org.codehaus.plexus.util.StringUtils; 037 038 /** 039 * Determines profile activation based on the existence/absence of some file. 040 * 041 * @author Benjamin Bentmann 042 */ 043 @Component( role = ProfileActivator.class, hint = "file" ) 044 public class FileProfileActivator 045 implements ProfileActivator 046 { 047 048 @Requirement 049 private PathTranslator pathTranslator; 050 051 public FileProfileActivator setPathTranslator( PathTranslator pathTranslator ) 052 { 053 this.pathTranslator = pathTranslator; 054 return this; 055 } 056 057 public boolean isActive( Profile profile, ProfileActivationContext context, ModelProblemCollector problems ) 058 { 059 Activation activation = profile.getActivation(); 060 061 if ( activation == null ) 062 { 063 return false; 064 } 065 066 ActivationFile file = activation.getFile(); 067 068 if ( file == null ) 069 { 070 return false; 071 } 072 073 String path; 074 boolean missing; 075 076 if ( StringUtils.isNotEmpty( file.getExists() ) ) 077 { 078 path = file.getExists(); 079 missing = false; 080 } 081 else if ( StringUtils.isNotEmpty( file.getMissing() ) ) 082 { 083 path = file.getMissing(); 084 missing = true; 085 } 086 else 087 { 088 return false; 089 } 090 091 RegexBasedInterpolator interpolator = new RegexBasedInterpolator(); 092 093 final File basedir = context.getProjectDirectory(); 094 095 if ( basedir != null ) 096 { 097 interpolator.addValueSource( new AbstractValueSource( false ) 098 { 099 public Object getValue( String expression ) 100 { 101 /* 102 * NOTE: We intentionally only support ${basedir} and not ${project.basedir} as the latter form 103 * would suggest that other project.* expressions can be used which is however beyond the design. 104 */ 105 if ( "basedir".equals( expression ) ) 106 { 107 return basedir.getAbsolutePath(); 108 } 109 return null; 110 } 111 } ); 112 } 113 else if ( path.indexOf( "${basedir}" ) >= 0 ) 114 { 115 return false; 116 } 117 118 interpolator.addValueSource( new MapBasedValueSource( context.getUserProperties() ) ); 119 120 interpolator.addValueSource( new MapBasedValueSource( context.getSystemProperties() ) ); 121 122 try 123 { 124 path = interpolator.interpolate( path, "" ); 125 } 126 catch ( Exception e ) 127 { 128 problems.add( Severity.ERROR, "Failed to interpolate file location " + path + " for profile " 129 + profile.getId() + ": " + e.getMessage(), file.getLocation( missing ? "missing" : "exists" ), e ); 130 return false; 131 } 132 133 path = pathTranslator.alignToBaseDirectory( path, basedir ); 134 135 File f = new File( path ); 136 137 if ( !f.isAbsolute() ) 138 { 139 return false; 140 } 141 142 boolean fileExists = f.exists(); 143 144 return missing ? !fileExists : fileExists; 145 } 146 147 }