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 java.util.HashMap;
023    import java.util.Map;
024    
025    import org.apache.maven.toolchain.model.ToolchainModel;
026    import org.codehaus.plexus.logging.Logger;
027    
028    /**
029     *
030     * @author mkleint
031     */
032    public abstract class DefaultToolchain
033        implements Toolchain, ToolchainPrivate
034    {
035    
036        private String type;
037    
038        private Map<String, RequirementMatcher> provides = new HashMap<String, RequirementMatcher>();
039    
040        public static final String KEY_TYPE = "type"; //NOI18N
041    
042        private ToolchainModel model;
043    
044        private Logger logger;
045    
046        protected DefaultToolchain( ToolchainModel model, Logger logger )
047        {
048            this.model = model;
049    
050            this.logger = logger;
051        }
052    
053        protected DefaultToolchain( ToolchainModel model, String type, Logger logger )
054        {
055            this( model, logger );
056            this.type = type;
057        }
058    
059        public final String getType()
060        {
061            return type != null ? type : model.getType();
062        }
063    
064    
065        public final ToolchainModel getModel()
066        {
067            return model;
068        }
069    
070        public final void addProvideToken( String type, RequirementMatcher matcher )
071        {
072            provides.put( type, matcher );
073        }
074    
075    
076        public boolean matchesRequirements( Map<String, String> requirements )
077        {
078            for ( Map.Entry<String, String> requirement : requirements.entrySet() )
079            {
080                String key = requirement.getKey();
081    
082                RequirementMatcher matcher = provides.get( key );
083    
084                if ( matcher == null )
085                {
086                    getLog().debug( "Toolchain " + this + " is missing required property: " + key );
087                    return false;
088                }
089                if ( !matcher.matches( requirement.getValue() ) )
090                {
091                    getLog().debug( "Toolchain " + this + " doesn't match required property: " + key );
092                    return false;
093                }
094            }
095            return true;
096        }
097    
098        protected Logger getLog()
099        {
100            return logger;
101        }
102    }