001package 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
022import org.apache.maven.model.Activation;
023import org.apache.maven.model.ActivationProperty;
024import org.apache.maven.model.Profile;
025import org.apache.maven.model.building.ModelProblemCollector;
026import org.apache.maven.model.building.ModelProblem.Severity;
027import org.apache.maven.model.building.ModelProblem.Version;
028import org.apache.maven.model.building.ModelProblemCollectorRequest;
029import org.apache.maven.model.profile.ProfileActivationContext;
030import org.codehaus.plexus.component.annotations.Component;
031import org.codehaus.plexus.util.StringUtils;
032
033/**
034 * Determines profile activation based on the existence or value of some execution property.
035 *
036 * @author Benjamin Bentmann
037 * @see ActivationProperty
038 */
039@Component( role = ProfileActivator.class, hint = "property" )
040public class PropertyProfileActivator
041    implements ProfileActivator
042{
043
044    public boolean isActive( Profile profile, ProfileActivationContext context, ModelProblemCollector problems )
045    {
046        Activation activation = profile.getActivation();
047
048        if ( activation == null )
049        {
050            return false;
051        }
052
053        ActivationProperty property = activation.getProperty();
054
055        if ( property == null )
056        {
057            return false;
058        }
059
060        String name = property.getName();
061        boolean reverseName = false;
062
063        if ( name != null && name.startsWith( "!" ) )
064        {
065            reverseName = true;
066            name = name.substring( 1 );
067        }
068
069        if ( name == null || name.length() <= 0 )
070        {
071            problems.add( new ModelProblemCollectorRequest( Severity.ERROR, Version.BASE )
072                    .setMessage( "The property name is required to activate the profile " + profile.getId() )
073                    .setLocation( property.getLocation( "" ) ) );
074            return false;
075        }
076
077        String sysValue = context.getUserProperties().get( name );
078        if ( sysValue == null )
079        {
080            sysValue = context.getSystemProperties().get( name );
081        }
082
083        String propValue = property.getValue();
084        if ( StringUtils.isNotEmpty( propValue ) )
085        {
086            boolean reverseValue = false;
087            if ( propValue.startsWith( "!" ) )
088            {
089                reverseValue = true;
090                propValue = propValue.substring( 1 );
091            }
092
093            // we have a value, so it has to match the system value...
094            boolean result = propValue.equals( sysValue );
095
096            return reverseValue ? !result : result;
097        }
098        else
099        {
100            boolean result = StringUtils.isNotEmpty( sysValue );
101
102            return reverseName ? !result : result;
103        }
104    }
105
106    @Override
107    public boolean presentInConfig( Profile profile, ProfileActivationContext context, ModelProblemCollector problems )
108    {
109        Activation activation = profile.getActivation();
110
111        if ( activation == null )
112        {
113            return false;
114        }
115
116        ActivationProperty property = activation.getProperty();
117
118        if ( property == null )
119        {
120            return false;
121        }
122        return true;
123    }
124
125}