/*
    * 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.apache.maven.cling.invoker;
  
  import java.util.Optional;
  
  import org.apache.maven.api.services.Lookup;
  import org.apache.maven.internal.impl.DefaultLookup;
  import org.codehaus.plexus.DefaultPlexusContainer;
  
  import static java.util.Objects.requireNonNull;
  import static org.apache.maven.cling.invoker.CliUtils.toPlexusLoggingLevel;
  
  /**
   * Container capsule backed by Plexus Container.
   */
  public class PlexusContainerCapsule implements ContainerCapsule {
      private final ClassLoader previousClassLoader;
      private final DefaultPlexusContainer plexusContainer;
      private final Lookup lookup;
  
      public PlexusContainerCapsule(
              LookupContext context, ClassLoader previousClassLoader, DefaultPlexusContainer plexusContainer) {
          this.previousClassLoader = requireNonNull(previousClassLoader, "previousClassLoader");
          this.plexusContainer = requireNonNull(plexusContainer, "plexusContainer");
          this.lookup = new DefaultLookup(plexusContainer);
          updateLogging(context);
      }
  
      @Override
      public void updateLogging(LookupContext context) {
          plexusContainer.getLoggerManager().setThresholds(toPlexusLoggingLevel(context.loggerLevel));
      }
  
      @Override
      public Lookup getLookup() {
          return lookup;
      }
  
      @Override
      public Optional<ClassLoader> currentThreadClassLoader() {
          return Optional.of(plexusContainer.getContainerRealm());
      }
  
      @Override
      public void close() {
          try {
              plexusContainer.dispose();
          } finally {
              Thread.currentThread().setContextClassLoader(previousClassLoader);
          }
      }
  }