package org.apache.maven.resolver.examples.manual;
   
   /*
    * 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.maven.repository.internal.MavenRepositorySystemUtils;
  import org.eclipse.aether.RepositorySystem;
  import org.eclipse.aether.connector.basic.BasicRepositoryConnectorFactory;
  import org.eclipse.aether.impl.DefaultServiceLocator;
  import org.eclipse.aether.spi.connector.RepositoryConnectorFactory;
  import org.eclipse.aether.spi.connector.transport.TransporterFactory;
  import org.eclipse.aether.transport.file.FileTransporterFactory;
  import org.eclipse.aether.transport.http.HttpTransporterFactory;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * A factory for repository system instances that employs Maven Artifact Resolver's built-in service locator
   * infrastructure to wire up the system's components.
   */
  public class ManualRepositorySystemFactory
  {
      private static final Logger LOGGER = LoggerFactory.getLogger( ManualRepositorySystemFactory.class );
  
      public static RepositorySystem newRepositorySystem()
      {
          /*
           * Aether's components implement org.eclipse.aether.spi.locator.Service to ease manual wiring and using the
           * prepopulated DefaultServiceLocator, we only need to register the repository connector and transporter
           * factories.
           */
          DefaultServiceLocator locator = MavenRepositorySystemUtils.newServiceLocator();
          locator.addService( RepositoryConnectorFactory.class, BasicRepositoryConnectorFactory.class );
          locator.addService( TransporterFactory.class, FileTransporterFactory.class );
          locator.addService( TransporterFactory.class, HttpTransporterFactory.class );
  
          locator.setErrorHandler( new DefaultServiceLocator.ErrorHandler()
          {
              @Override
              public void serviceCreationFailed( Class<?> type, Class<?> impl, Throwable exception )
              {
                 LOGGER.error( "Service creation failed for {} with implementation {}",
                          type, impl, exception );
              }
          } );
  
          return locator.getService( RepositorySystem.class );
      }
  
  }