cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/inventory/sync/config/WatchdogSchedulingConfigurer.java

   1 /*
   2  * ============LICENSE_START=======================================================
   3  *  Copyright (C) 2022-2023 Nordix Foundation
   4  *  ================================================================================
   5  *  Licensed under the Apache License, Version 2.0 (the "License");
   6  *  you may not use this file except in compliance with the License.
   7  *  You may obtain a copy of the License at
   8  *
   9  *        http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  *  Unless required by applicable law or agreed to in writing, software
  12  *  distributed under the License is distributed on an "AS IS" BASIS,
  13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  *  See the License for the specific language governing permissions and
  15  *  limitations under the License.
  16  *
  17  *  SPDX-License-Identifier: Apache-2.0
  18  *  ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.cps.ncmp.api.impl.inventory.sync.config;
  22
  23 import java.util.concurrent.ThreadPoolExecutor;
  24 import org.springframework.context.annotation.Bean;
  25 import org.springframework.context.annotation.Configuration;
  26 import org.springframework.scheduling.TaskScheduler;
  27 import org.springframework.scheduling.annotation.EnableScheduling;
  28 import org.springframework.scheduling.annotation.SchedulingConfigurer;
  29 import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
  30 import org.springframework.scheduling.config.ScheduledTaskRegistrar;
  31
  32 @Configuration
  33 @EnableScheduling
  34 public class WatchdogSchedulingConfigurer implements SchedulingConfigurer {
  35
  36     @Override
  37     public void configureTasks(final ScheduledTaskRegistrar scheduledTaskRegistrar) {
  38         scheduledTaskRegistrar.setTaskScheduler(taskScheduler());
  39     }
  40
  41     /**
  42      * Implementation of Spring's {@link TaskScheduler} interface, wrapping
  43      * a native {@link org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler} for watchdogs.
  44      */
  45     @Bean
  46     public TaskScheduler taskScheduler() {
  47         final ThreadPoolTaskScheduler taskScheduler = new ThreadPoolTaskScheduler();
  48         taskScheduler.setPoolSize(10);
  49         taskScheduler.setThreadNamePrefix("watchdog-th-");
  50         taskScheduler.setAwaitTerminationSeconds(60);
  51         taskScheduler.setWaitForTasksToCompleteOnShutdown(true);
  52         taskScheduler.setRejectedExecutionHandler(new ThreadPoolExecutor.DiscardPolicy());
  53         taskScheduler.initialize();
  54         return taskScheduler;
  55     }
  56 }