package org.apache.archiva.repository;
   
   /*
    * 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 org.apache.archiva.admin.model.RepositoryAdminException;
  import org.apache.archiva.admin.model.beans.ManagedRepository;
  import org.apache.archiva.admin.model.beans.RemoteRepository;
  import org.apache.archiva.admin.model.managed.ManagedRepositoryAdmin;
  import org.apache.archiva.admin.model.remote.RemoteRepositoryAdmin;
  import org.apache.archiva.configuration.ArchivaConfiguration;
  import org.apache.archiva.configuration.ConfigurationNames;
  import org.apache.archiva.redback.components.registry.Registry;
  import org.apache.archiva.redback.components.registry.RegistryListener;
  import org.springframework.context.ApplicationContext;
  import org.springframework.stereotype.Service;
  
  import javax.annotation.PostConstruct;
  import javax.inject.Inject;
  import java.util.Map;
  import java.util.concurrent.ConcurrentHashMap;
  
  /**
   * RepositoryContentRequest
   *
   *
   */
  @Service( "repositoryContentFactory#default" )
  public class RepositoryContentFactory
      implements RegistryListener
  {
      /**
       *
       */
      @Inject
      private ArchivaConfiguration archivaConfiguration;
  
      @Inject
      private ManagedRepositoryAdmin managedRepositoryAdmin;
  
      @Inject
      private RemoteRepositoryAdmin remoteRepositoryAdmin;
  
      @Inject
      private ApplicationContext applicationContext;
  
      private final Map<String, ManagedRepositoryContent> managedContentMap;
  
      private final Map<String, RemoteRepositoryContent> remoteContentMap;
  
  
      public RepositoryContentFactory()
      {
          managedContentMap = new ConcurrentHashMap<String, ManagedRepositoryContent>();
          remoteContentMap = new ConcurrentHashMap<String, RemoteRepositoryContent>();
      }
  
      /**
       * Get the ManagedRepositoryContent object for the repository Id specified.
       *
       * @param repoId the repository id to fetch.
       * @return the ManagedRepositoryContent object associated with the repository id.
       * @throws RepositoryNotFoundException if the repository id does not exist within the configuration.
       * @throws RepositoryException         the repository content object cannot be loaded due to configuration issue.
       */
      public ManagedRepositoryContent getManagedRepositoryContent( String repoId )
          throws RepositoryNotFoundException, RepositoryException
      {
          try
          {
              ManagedRepositoryContent repo = managedContentMap.get( repoId );
  
              if ( repo != null )
              {
                  return repo;
              }
  
              ManagedRepository repoConfig = managedRepositoryAdmin.getManagedRepository( repoId );
              if ( repoConfig == null )
              {
                  throw new RepositoryNotFoundException(
                      "Unable to find managed repository configuration for id:" + repoId );
              }
 
             repo = applicationContext.getBean( "managedRepositoryContent#" + repoConfig.getLayout(),
                                                ManagedRepositoryContent.class );
             repo.setRepository( repoConfig );
             managedContentMap.put( repoId, repo );
 
             return repo;
         }
         catch ( RepositoryAdminException e )
         {
             throw new RepositoryException( e.getMessage(), e );
         }
     }
 
     public RemoteRepositoryContent getRemoteRepositoryContent( String repoId )
         throws RepositoryNotFoundException, RepositoryException
     {
         try
         {
             RemoteRepositoryContent repo = remoteContentMap.get( repoId );
 
             if ( repo != null )
             {
                 return repo;
             }
 
             RemoteRepository repoConfig = remoteRepositoryAdmin.getRemoteRepository( repoId );
             if ( repoConfig == null )
             {
                 throw new RepositoryNotFoundException(
                     "Unable to find remote repository configuration for id:" + repoId );
             }
 
             repo = applicationContext.getBean( "remoteRepositoryContent#" + repoConfig.getLayout(),
                                                RemoteRepositoryContent.class );
             repo.setRepository( repoConfig );
             remoteContentMap.put( repoId, repo );
 
             return repo;
         }
         catch ( RepositoryAdminException e )
         {
             throw new RepositoryException( e.getMessage(), e );
         }
     }
 
 
     @Override
     public void afterConfigurationChange( Registry registry, String propertyName, Object propertyValue )
     {
         if ( ConfigurationNames.isManagedRepositories( propertyName ) || ConfigurationNames.isRemoteRepositories(
             propertyName ) )
         {
             initMaps();
         }
     }
 
     @Override
     public void beforeConfigurationChange( Registry registry, String propertyName, Object propertyValue )
     {
         /* do nothing */
     }
 
     @PostConstruct
     public void initialize()
     {
         archivaConfiguration.addChangeListener( this );
     }
 
     private void initMaps()
     {
         // olamy we use concurent so no need of synchronize
         //synchronized ( managedContentMap )
         //{
         managedContentMap.clear();
         //}
 
         //synchronized ( remoteContentMap )
         //{
         remoteContentMap.clear();
         //}
     }
 
     public ArchivaConfiguration getArchivaConfiguration()
     {
         return archivaConfiguration;
     }
 
     public void setArchivaConfiguration( ArchivaConfiguration archivaConfiguration )
     {
         this.archivaConfiguration = archivaConfiguration;
     }
 }