code: /*
   * 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.skywalking.oap.server.core.analysis.worker;
  
  import org.apache.skywalking.oap.server.core.alarm.AlarmEntrance;
  import org.apache.skywalking.oap.server.core.analysis.metrics.Metrics;
  import org.apache.skywalking.oap.server.core.analysis.metrics.WithMetadata;
  import org.apache.skywalking.oap.server.core.worker.AbstractWorker;
  import org.apache.skywalking.oap.server.library.module.ModuleDefineHolder;
  
  /**
   * Alarm notify worker, do a simple route to alarm core after the aggregation persistence.
   */
  public class AlarmNotifyWorker extends AbstractWorker<Metrics> {
      private AlarmEntrance entrance;
  
      public AlarmNotifyWorker(ModuleDefineHolder moduleDefineHolder) {
          super(moduleDefineHolder);
          this.entrance = new AlarmEntrance(moduleDefineHolder);
      }
  
      @Override
      public void in(Metrics metrics) {
          if (metrics instanceof WithMetadata) {
              entrance.forward(metrics);
          }
      }
  }
  