001    package org.apache.maven.artifact.handler.manager;
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.Map;
023    import java.util.Set;
024    import java.util.concurrent.ConcurrentHashMap;
025    
026    import org.apache.maven.artifact.handler.ArtifactHandler;
027    import org.apache.maven.artifact.handler.DefaultArtifactHandler;
028    import org.codehaus.plexus.component.annotations.Component;
029    import org.codehaus.plexus.component.annotations.Requirement;
030    
031    /**
032     * @author Jason van Zyl
033     */
034    @Component( role = ArtifactHandlerManager.class )
035    public class DefaultArtifactHandlerManager
036        implements ArtifactHandlerManager
037    {
038    
039        @Requirement( role = ArtifactHandler.class )
040        private Map<String, ArtifactHandler> artifactHandlers;
041    
042        private Map<String, ArtifactHandler> unmanagedHandlers = new ConcurrentHashMap<String, ArtifactHandler>();
043    
044        public ArtifactHandler getArtifactHandler( String type )
045        {
046            ArtifactHandler handler = unmanagedHandlers.get( type );
047    
048            if ( handler == null )
049            {
050                handler = artifactHandlers.get( type );
051    
052                if ( handler == null )
053                {
054                    handler = new DefaultArtifactHandler( type );
055                }
056            }
057    
058            return handler;
059        }
060    
061        public void addHandlers( Map<String, ArtifactHandler> handlers )
062        {
063            // legacy support for maven-gpg-plugin:1.0
064            unmanagedHandlers.putAll( handlers );
065        }
066    
067        @Deprecated
068        public Set<String> getHandlerTypes()
069        {
070            return artifactHandlers.keySet();
071        }
072    
073    }