package org.eclipse.aether.internal.impl;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   * 
   *  http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  import java.util.Objects;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  import javax.inject.Singleton;
  
  import org.eclipse.aether.RepositorySystemSession;
  import org.eclipse.aether.repository.LocalRepository;
  import org.eclipse.aether.repository.LocalRepositoryManager;
  import org.eclipse.aether.repository.NoLocalRepositoryManagerException;
  import org.eclipse.aether.spi.localrepo.LocalRepositoryManagerFactory;
  import org.eclipse.aether.spi.locator.Service;
  import org.eclipse.aether.spi.locator.ServiceLocator;
  
  /**
   * Creates enhanced local repository managers for repository types {@code "default"} or {@code "" (automatic)}. Enhanced
   * local repository manager is built upon the classical Maven 2.0 local repository structure but additionally keeps
   * track of from what repositories a cached artifact was resolved. Resolution of locally cached artifacts will be
   * rejected in case the current resolution request does not match the known source repositories of an artifact, thereby
   * emulating physically separated artifact caches per remote repository.
   */
  @Singleton
  @Named( "enhanced" )
  public class EnhancedLocalRepositoryManagerFactory
      implements LocalRepositoryManagerFactory, Service
  {
      private float priority = 10.0f;
  
      private TrackingFileManager trackingFileManager;
  
      public EnhancedLocalRepositoryManagerFactory()
      {
          // no arg ctor for ServiceLocator
      }
  
      @Inject
      public EnhancedLocalRepositoryManagerFactory( final TrackingFileManager trackingFileManager )
      {
          this.trackingFileManager = Objects.requireNonNull( trackingFileManager );
      }
  
      @Override
      public void initService( final ServiceLocator locator )
      {
          this.trackingFileManager = Objects.requireNonNull( locator.getService( TrackingFileManager.class ) );
      }
  
      public LocalRepositoryManager newInstance( RepositorySystemSession session, LocalRepository repository )
          throws NoLocalRepositoryManagerException
      {
          if ( "".equals( repository.getContentType() ) || "default".equals( repository.getContentType() ) )
          {
              return new EnhancedLocalRepositoryManager( repository.getBasedir(), session, trackingFileManager );
          }
          else
          {
              throw new NoLocalRepositoryManagerException( repository );
          }
      }
  
      public float getPriority()
      {
          return priority;
      }
  
      /**
       * Sets the priority of this component.
       * 
       * @param priority The priority.
       * @return This component for chaining, never {@code null}.
       */
      public EnhancedLocalRepositoryManagerFactory setPriority( float priority )
      {
          this.priority = priority;
          return this;
      }
  
  }