content: /*
   * 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.bifromq.plugin.manager;
  
  import org.pf4j.PluginClassLoader;
  import org.pf4j.PluginDescriptor;
  import org.pf4j.PluginManager;
  
  class BifroMQPluginClassLoader extends PluginClassLoader {
      private final PluginManager pluginManager;
      private final PluginDescriptor pluginDescriptor;
  
      public BifroMQPluginClassLoader(PluginManager pluginManager,
                                      PluginDescriptor pluginDescriptor,
                                      ClassLoader parent) {
          super(pluginManager, pluginDescriptor, parent);
          this.pluginManager = pluginManager;
          this.pluginDescriptor = pluginDescriptor;
      }
  
      @Override
      public Class<?> loadClass(String className) throws ClassNotFoundException {
          synchronized (getClassLoadingLock(className)) {
              // if the class is provided by bifromq
              if (!pluginDescriptor.getPluginClass().equals(className) &&
                      ProvidedPackages.isProvided(className)) {
                  return getParent().loadClass(className);
              }
          }
          return super.loadClass(className);
      }
  }
  