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 static org.pf4j.RuntimeMode.DEVELOPMENT;
  
  import org.apache.bifromq.plugin.BifroMQPlugin;
  import org.apache.bifromq.plugin.BifroMQPluginDescriptor;
  import java.lang.reflect.Constructor;
  import lombok.extern.slf4j.Slf4j;
  import org.pf4j.DefaultPluginFactory;
  import org.pf4j.Plugin;
  import org.pf4j.PluginWrapper;
  
  @Slf4j
  public class BifroMQPluginFactory extends DefaultPluginFactory {
      protected Plugin createInstance(Class<?> pluginClass, PluginWrapper pluginWrapper) {
          ClassLoader originalLoader = Thread.currentThread().getContextClassLoader();
          try {
              Thread.currentThread().setContextClassLoader(pluginWrapper.getPluginClassLoader());
              if (BifroMQPlugin.class.isAssignableFrom(pluginClass)) {
                  return createBifroMQPluginInstance(pluginClass, pluginWrapper);
              }
              return super.createInstance(pluginClass, pluginWrapper);
          } finally {
              Thread.currentThread().setContextClassLoader(originalLoader);
          }
      }
  
      private Plugin createBifroMQPluginInstance(Class<?> pluginClass, PluginWrapper pluginWrapper) {
          BifroMQPluginDescriptor context = new BifroMQPluginDescriptor(
              pluginWrapper.getDescriptor(),
              pluginWrapper.getPluginPath(),
              pluginWrapper.getPluginClassLoader(),
              pluginWrapper.getRuntimeMode() == DEVELOPMENT);
          try {
              Constructor<?> constructor = pluginClass.getDeclaredConstructor(BifroMQPluginDescriptor.class);
              return (Plugin) constructor.newInstance(context);
          } catch (Exception e) {
              log.error("Failed to initialize BifroMQ Plugin[{}]", pluginClass.getName(), e);
          }
          return null;
      }
  }
  