/*
    * 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.
   */
  package org.eclipse.aether.connector.basic;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  
  import java.util.Collections;
  import java.util.Map;
  
  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.checksum.ProvidedChecksumsSource;
  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;
  
  import static java.util.Objects.requireNonNull;
  
  /**
   * 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 Map<String, ProvidedChecksumsSource> providedChecksumsSources;
  
      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,
              Map<String, ProvidedChecksumsSource> providedChecksumsSources) {
          setTransporterProvider(transporterProvider);
          setRepositoryLayoutProvider(layoutProvider);
          setChecksumPolicyProvider(checksumPolicyProvider);
          setFileProcessor(fileProcessor);
          setProvidedChecksumSources(providedChecksumsSources);
      }
  
      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));
          setProvidedChecksumSources(Collections.emptyMap());
      }
  
      /**
       * 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;
     }
 
     /**
      * Sets the provided checksum sources to use for this component.
      *
      * @param providedChecksumsSources The provided checksum sources to use, must not be {@code null}.
      * @return This component for chaining, never {@code null}.
      * @since 1.8.0
      */
     public BasicRepositoryConnectorFactory setProvidedChecksumSources(
             Map<String, ProvidedChecksumsSource> providedChecksumsSources) {
         this.providedChecksumsSources =
                 requireNonNull(providedChecksumsSources, "provided checksum sources 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 {
         requireNonNull(session, "session cannot be null");
         requireNonNull(repository, "repository cannot be null");
 
         return new BasicRepositoryConnector(
                 session,
                 repository,
                 transporterProvider,
                 layoutProvider,
                 checksumPolicyProvider,
                 fileProcessor,
                 providedChecksumsSources);
     }
 }