001 package org.apache.maven.repository.legacy.resolver.conflict;
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.codehaus.plexus.PlexusConstants;
023 import org.codehaus.plexus.PlexusContainer;
024 import org.codehaus.plexus.component.annotations.Component;
025 import org.codehaus.plexus.component.annotations.Requirement;
026 import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
027 import org.codehaus.plexus.context.Context;
028 import org.codehaus.plexus.context.ContextException;
029 import org.codehaus.plexus.personality.plexus.lifecycle.phase.Contextualizable;
030
031 /**
032 * A conflict resolver factory that obtains instances from a plexus container.
033 *
034 * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
035 * @todo you don't need the container in here with the active maps (jvz).
036 * @since 3.0
037 */
038 @Component( role = ConflictResolverFactory.class )
039 public class DefaultConflictResolverFactory
040 implements ConflictResolverFactory, Contextualizable
041 {
042 // fields -----------------------------------------------------------------
043
044 /**
045 * The plexus container used to obtain instances from.
046 */
047 @Requirement
048 private PlexusContainer container;
049
050 // ConflictResolverFactory methods ----------------------------------------
051
052 /*
053 * @see org.apache.maven.artifact.resolver.conflict.ConflictResolverFactory#getConflictResolver(java.lang.String)
054 */
055
056 public ConflictResolver getConflictResolver( String type )
057 throws ConflictResolverNotFoundException
058 {
059 try
060 {
061 return (ConflictResolver) container.lookup( ConflictResolver.ROLE, type );
062 }
063 catch ( ComponentLookupException exception )
064 {
065 throw new ConflictResolverNotFoundException( "Cannot find conflict resolver of type: " + type );
066 }
067 }
068
069 // Contextualizable methods -----------------------------------------------
070
071 /*
072 * @see org.codehaus.plexus.personality.plexus.lifecycle.phase.Contextualizable#contextualize(org.codehaus.plexus.context.Context)
073 */
074
075 public void contextualize( Context context )
076 throws ContextException
077 {
078 container = (PlexusContainer) context.get( PlexusConstants.PLEXUS_KEY );
079 }
080 }