content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * Licensed 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 com.alibaba.nacos.core.distributed.distro.task.delay;
  
  import com.alibaba.nacos.common.task.NacosTask;
  import com.alibaba.nacos.common.task.NacosTaskProcessor;
  import com.alibaba.nacos.core.distributed.distro.component.DistroComponentHolder;
  import com.alibaba.nacos.core.distributed.distro.entity.DistroKey;
  import com.alibaba.nacos.core.distributed.distro.task.DistroTaskEngineHolder;
  import com.alibaba.nacos.core.distributed.distro.task.execute.DistroSyncChangeTask;
  import com.alibaba.nacos.core.distributed.distro.task.execute.DistroSyncDeleteTask;
  
  /**
   * Distro delay task processor.
   *
   * @author xiweng.yy
   */
  public class DistroDelayTaskProcessor implements NacosTaskProcessor {
      
      private final DistroTaskEngineHolder distroTaskEngineHolder;
      
      private final DistroComponentHolder distroComponentHolder;
      
      public DistroDelayTaskProcessor(DistroTaskEngineHolder distroTaskEngineHolder,
              DistroComponentHolder distroComponentHolder) {
          this.distroTaskEngineHolder = distroTaskEngineHolder;
          this.distroComponentHolder = distroComponentHolder;
      }
      
      @Override
      public boolean process(NacosTask task) {
          if (!(task instanceof DistroDelayTask)) {
              return true;
          }
          DistroDelayTask distroDelayTask = (DistroDelayTask) task;
          DistroKey distroKey = distroDelayTask.getDistroKey();
          switch (distroDelayTask.getAction()) {
              case DELETE:
                  DistroSyncDeleteTask syncDeleteTask = new DistroSyncDeleteTask(distroKey, distroComponentHolder);
                  distroTaskEngineHolder.getExecuteWorkersManager().addTask(distroKey, syncDeleteTask);
                  return true;
              case CHANGE:
              case ADD:
                  DistroSyncChangeTask syncChangeTask = new DistroSyncChangeTask(distroKey, distroComponentHolder);
                  distroTaskEngineHolder.getExecuteWorkersManager().addTask(distroKey, syncChangeTask);
                  return true;
              default:
                  return false;
          }
      }
  }
  