/*
    * 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.internal.impl;
  
  import java.util.List;
  
  import org.eclipse.aether.RepositorySystemSession;
  import org.eclipse.aether.impl.RemoteRepositoryManager;
  import org.eclipse.aether.repository.RemoteRepository;
  import org.eclipse.aether.repository.RepositoryPolicy;
  
  import static java.util.Objects.requireNonNull;
  
  public class StubRemoteRepositoryManager implements RemoteRepositoryManager {
  
      public StubRemoteRepositoryManager() {}
  
      @Override
      public List<RemoteRepository> aggregateRepositories(
              RepositorySystemSession session,
              List<RemoteRepository> dominantRepositories,
              List<RemoteRepository> recessiveRepositories,
              boolean recessiveIsRaw) {
          requireNonNull(session, "session cannot be null");
          requireNonNull(dominantRepositories, "dominantRepositories cannot be null");
          requireNonNull(recessiveRepositories, "recessiveRepositories cannot be null");
          return dominantRepositories;
      }
  
      @Override
      public RepositoryPolicy getPolicy(
              RepositorySystemSession session, RemoteRepository repository, boolean releases, boolean snapshots) {
          requireNonNull(session, "session cannot be null");
          requireNonNull(repository, "repository cannot be null");
          RepositoryPolicy policy = repository.getPolicy(snapshots);
  
          String checksums = session.getChecksumPolicy();
          if (checksums == null || checksums.isEmpty()) {
              checksums = policy.getChecksumPolicy();
          }
          String artifactUpdates = session.getArtifactUpdatePolicy();
          if (artifactUpdates == null || artifactUpdates.isEmpty()) {
              artifactUpdates = policy.getArtifactUpdatePolicy();
          }
          String metadataUpdates = session.getArtifactUpdatePolicy();
          if (metadataUpdates == null || metadataUpdates.isEmpty()) {
              metadataUpdates = policy.getMetadataUpdatePolicy();
          }
  
          policy = new RepositoryPolicy(policy.isEnabled(), artifactUpdates, metadataUpdates, checksums);
  
          return policy;
      }
  }