/*
    * 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.ArrayList;
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.EnumSet;
  import java.util.List;
  import java.util.Set;
  import java.util.stream.Collectors;
  
  import org.eclipse.aether.RepositoryEvent;
  import org.eclipse.aether.RepositoryListener;
  
  import static java.util.Objects.requireNonNull;
  
  /**
   * Collects observed repository events for later inspection.
   */
  class RecordingRepositoryListener implements RepositoryListener {
  
      private final List<RepositoryEvent> events = Collections.synchronizedList(new ArrayList<>());
  
      public List<RepositoryEvent> getEvents(RepositoryEvent.EventType... types) {
          if (types == null || types.length == 0) {
              return events;
          }
          Set<RepositoryEvent.EventType> requiredTypes = EnumSet.copyOf(Arrays.asList(types));
          return events.stream().filter(e -> requiredTypes.contains(e.getType())).collect(Collectors.toList());
      }
  
      public void clear() {
          events.clear();
      }
  
      @Override
      public void artifactDescriptorInvalid(RepositoryEvent event) {
          requireNonNull(event, "event cannot be null");
          events.add(event);
      }
  
      @Override
      public void artifactDescriptorMissing(RepositoryEvent event) {
          requireNonNull(event, "event cannot be null");
          events.add(event);
      }
  
      @Override
      public void metadataInvalid(RepositoryEvent event) {
          requireNonNull(event, "event cannot be null");
          events.add(event);
      }
  
      @Override
      public void artifactResolving(RepositoryEvent event) {
          requireNonNull(event, "event cannot be null");
          events.add(event);
      }
  
      @Override
      public void artifactResolved(RepositoryEvent event) {
          requireNonNull(event, "event cannot be null");
          events.add(event);
      }
  
      @Override
      public void artifactDownloading(RepositoryEvent event) {
          requireNonNull(event, "event cannot be null");
          events.add(event);
      }
  
      @Override
      public void artifactDownloaded(RepositoryEvent event) {
          requireNonNull(event, "event cannot be null");
          events.add(event);
      }
  
      @Override
      public void metadataDownloaded(RepositoryEvent event) {
          requireNonNull(event, "event cannot be null");
          events.add(event);
      }
 
     @Override
     public void metadataDownloading(RepositoryEvent event) {
         requireNonNull(event, "event cannot be null");
         events.add(event);
     }
 
     @Override
     public void metadataResolving(RepositoryEvent event) {
         requireNonNull(event, "event cannot be null");
         events.add(event);
     }
 
     @Override
     public void metadataResolved(RepositoryEvent event) {
         requireNonNull(event, "event cannot be null");
         events.add(event);
     }
 
     @Override
     public void artifactInstalling(RepositoryEvent event) {
         requireNonNull(event, "event cannot be null");
         events.add(event);
     }
 
     @Override
     public void artifactInstalled(RepositoryEvent event) {
         requireNonNull(event, "event cannot be null");
         events.add(event);
     }
 
     @Override
     public void metadataInstalling(RepositoryEvent event) {
         requireNonNull(event, "event cannot be null");
         events.add(event);
     }
 
     @Override
     public void metadataInstalled(RepositoryEvent event) {
         requireNonNull(event, "event cannot be null");
         events.add(event);
     }
 
     @Override
     public void artifactDeploying(RepositoryEvent event) {
         requireNonNull(event, "event cannot be null");
         events.add(event);
     }
 
     @Override
     public void artifactDeployed(RepositoryEvent event) {
         requireNonNull(event, "event cannot be null");
         events.add(event);
     }
 
     @Override
     public void metadataDeploying(RepositoryEvent event) {
         requireNonNull(event, "event cannot be null");
         events.add(event);
     }
 
     @Override
     public void metadataDeployed(RepositoryEvent event) {
         requireNonNull(event, "event cannot be null");
         events.add(event);
     }
 }