content: /*
   * MIT License
   *
   * Copyright (c) 2018 Alibaba Group
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  package com.tmall.wireless.tangram3.eventbus;
  
  import android.support.annotation.NonNull;
  
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Method;
  
  /**
   * Created by longerian on 16/4/29.
   * <p>
   * Used to wrap an event subscriber.
   */
  public class EventHandlerWrapper {
  
      /**
       * Interested event type
       */
      @NonNull
      protected final String type;
  
      /**
       * Interested event producer's Id
       */
      protected final String producer;
  
      /**
       * Real subscriber object to invoke callback method
       */
      @NonNull
      protected final Object subscriber;
  
      /**
       * Callback mehtod's name in subscriber object, the method must be provided with parameter type of {@link Event}.
       */
      protected final String action;
  
      /**
       * Cached callback method object.
       */
      protected final Method handlerMethod;
  
      public final IEventHandlerReceiver eventHandlerReceiver;
  
      EventHandlerWrapper(@NonNull String type, String producer, @NonNull Object subscriber,
                          String action) {
          this.type = type;
          this.producer = producer;
          this.subscriber = subscriber;
          this.action = action;
          this.handlerMethod = ReflectedActionFinder.findMethodByName(action, subscriber);
          this.eventHandlerReceiver = null;
      }
  
      public EventHandlerWrapper(String type, IEventHandlerReceiver eventHandlerReceiver) {
          this.type = type;
          this.producer = null;
          this.subscriber = null;
          this.action = null;
          this.handlerMethod = null;
          this.eventHandlerReceiver = eventHandlerReceiver;
      }
  
      public EventHandlerWrapper(String type, String producer, IEventHandlerReceiver eventHandlerReceiver) {
          this.type = type;
          this.producer = producer;
          this.subscriber = null;
          this.action = null;
          this.handlerMethod = null;
          this.eventHandlerReceiver = eventHandlerReceiver;
      }
  
      final protected void handleEvent(@NonNull Event event) {
          if (handlerMethod != null) {
              try {
                  handlerMethod.invoke(subscriber, event);
              } catch (IllegalAccessException e) {
                  e.printStackTrace();
              } catch (InvocationTargetException e) {
                  e.printStackTrace();
              }
          } else if (eventHandlerReceiver != null) {
              eventHandlerReceiver.handleEvent(event);
          }
      }
  
  }
  