package org.apache.archiva.indexer;
   
   /*
    * 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.repository.RepositoryType;
  import org.apache.archiva.repository.UnsupportedRepositoryTypeException;
  import org.springframework.context.ApplicationContext;
  import org.springframework.stereotype.Service;
  
  import javax.inject.Inject;
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * This factory is used to get a index manager for a certain repository type.
   */
  @Service("indexerManagerFactory")
  public class IndexManagerFactory {
  
      Map<RepositoryType, ArchivaIndexManager> managers= new HashMap<>();
  
      @Inject
      ApplicationContext applicationContext;
  
      public ArchivaIndexManager getIndexManager(RepositoryType type) {
          if (managers.containsKey(type)) {
              return managers.get(type);
          } else {
              ArchivaIndexManager manager = applicationContext.getBeansOfType(ArchivaIndexManager.class).values().stream().
                      filter(m -> m.supportsRepository(type)).
                      findFirst().orElseThrow(() -> new UnsupportedRepositoryTypeException(type));
              managers.put(type, manager);
              return manager;
          }
      }
  }