package org.eclipse.aether.connector.basic;
   
   /*
    * 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 javax.inject.Inject;
  import javax.inject.Named;
  
  import static java.util.Objects.requireNonNull;
  
  import org.eclipse.aether.RepositorySystemSession;
  import org.eclipse.aether.repository.RemoteRepository;
  import org.eclipse.aether.spi.connector.RepositoryConnector;
  import org.eclipse.aether.spi.connector.RepositoryConnectorFactory;
  import org.eclipse.aether.spi.connector.checksum.ChecksumPolicyProvider;
  import org.eclipse.aether.spi.connector.layout.RepositoryLayoutProvider;
  import org.eclipse.aether.spi.connector.transport.TransporterProvider;
  import org.eclipse.aether.spi.io.FileProcessor;
  import org.eclipse.aether.spi.locator.Service;
  import org.eclipse.aether.spi.locator.ServiceLocator;
  import org.eclipse.aether.transfer.NoRepositoryConnectorException;
  
  /**
   * A repository connector factory that employs pluggable
   * {@link org.eclipse.aether.spi.connector.transport.TransporterFactory transporters} and
   * {@link org.eclipse.aether.spi.connector.layout.RepositoryLayoutFactory repository layouts} for the transfers.
   */
  @Named( "basic" )
  public final class BasicRepositoryConnectorFactory
      implements RepositoryConnectorFactory, Service
  {
      private TransporterProvider transporterProvider;
  
      private RepositoryLayoutProvider layoutProvider;
  
      private ChecksumPolicyProvider checksumPolicyProvider;
  
      private FileProcessor fileProcessor;
  
      private float priority;
  
      /**
       * Creates an (uninitialized) instance of this connector factory. <em>Note:</em> In case of manual instantiation by
       * clients, the new factory needs to be configured via its various mutators before first use or runtime errors will
       * occur.
       */
      public BasicRepositoryConnectorFactory()
      {
          // enables default constructor
      }
  
      @Inject
      BasicRepositoryConnectorFactory( TransporterProvider transporterProvider, RepositoryLayoutProvider layoutProvider,
                                       ChecksumPolicyProvider checksumPolicyProvider, FileProcessor fileProcessor )
      {
          setTransporterProvider( transporterProvider );
          setRepositoryLayoutProvider( layoutProvider );
          setChecksumPolicyProvider( checksumPolicyProvider );
          setFileProcessor( fileProcessor );
      }
  
      public void initService( ServiceLocator locator )
      {
          setTransporterProvider( locator.getService( TransporterProvider.class ) );
          setRepositoryLayoutProvider( locator.getService( RepositoryLayoutProvider.class ) );
          setChecksumPolicyProvider( locator.getService( ChecksumPolicyProvider.class ) );
          setFileProcessor( locator.getService( FileProcessor.class ) );
      }
  
      /**
       * Sets the transporter provider to use for this component.
       *
       * @param transporterProvider The transporter provider to use, must not be {@code null}.
       * @return This component for chaining, never {@code null}.
       */
      public BasicRepositoryConnectorFactory setTransporterProvider( TransporterProvider transporterProvider )
      {
          this.transporterProvider = requireNonNull( transporterProvider, "transporter provider cannot be null" );
          return this;
      }
  
      /**
       * Sets the repository layout provider to use for this component.
      *
      * @param layoutProvider The repository layout provider to use, must not be {@code null}.
      * @return This component for chaining, never {@code null}.
      */
     public BasicRepositoryConnectorFactory setRepositoryLayoutProvider( RepositoryLayoutProvider layoutProvider )
     {
         this.layoutProvider =  requireNonNull( layoutProvider, "repository layout provider cannot be null" );
         return this;
     }
 
     /**
      * Sets the checksum policy provider to use for this component.
      *
      * @param checksumPolicyProvider The checksum policy provider to use, must not be {@code null}.
      * @return This component for chaining, never {@code null}.
      */
     public BasicRepositoryConnectorFactory setChecksumPolicyProvider( ChecksumPolicyProvider checksumPolicyProvider )
     {
         this.checksumPolicyProvider = requireNonNull(
                 checksumPolicyProvider, "checksum policy provider cannot be null" );
         return this;
     }
 
     /**
      * Sets the file processor to use for this component.
      *
      * @param fileProcessor The file processor to use, must not be {@code null}.
      * @return This component for chaining, never {@code null}.
      */
     public BasicRepositoryConnectorFactory setFileProcessor( FileProcessor fileProcessor )
     {
         this.fileProcessor = requireNonNull( fileProcessor, "file processor cannot be null" );
         return this;
     }
 
     public float getPriority()
     {
         return priority;
     }
 
     /**
      * Sets the priority of this component.
      * 
      * @param priority The priority.
      * @return This component for chaining, never {@code null}.
      */
     public BasicRepositoryConnectorFactory setPriority( float priority )
     {
         this.priority = priority;
         return this;
     }
 
     public RepositoryConnector newInstance( RepositorySystemSession session, RemoteRepository repository )
         throws NoRepositoryConnectorException
     {
         return new BasicRepositoryConnector( session, repository, transporterProvider, layoutProvider,
                                              checksumPolicyProvider, fileProcessor );
     }
 
 }