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.naming.monitor;
  
  import com.alibaba.nacos.naming.consistency.persistent.raft.RaftCore;
  import com.alibaba.nacos.naming.consistency.persistent.raft.RaftPeer;
  import com.alibaba.nacos.naming.core.ServiceManager;
  import com.alibaba.nacos.naming.misc.Loggers;
  import com.alibaba.nacos.naming.push.PushService;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.scheduling.annotation.Scheduled;
  import org.springframework.stereotype.Component;
  
  import javax.annotation.PostConstruct;
  import java.util.Map;
  import java.util.concurrent.ScheduledExecutorService;
  import java.util.concurrent.ScheduledThreadPoolExecutor;
  import java.util.concurrent.ThreadFactory;
  import java.util.concurrent.TimeUnit;
  
  /**
   * @author nacos
   */
  
  @Component
  public class PerformanceLoggerThread {
  
      @Autowired
      private ServiceManager serviceManager;
  
      @Autowired
      private PushService pushService;
  
      @Autowired
      private RaftCore raftCore;
  
      private ScheduledExecutorService executor = new ScheduledThreadPoolExecutor(1, new ThreadFactory() {
          @Override
          public Thread newThread(Runnable r) {
              Thread t = new Thread(r);
              t.setDaemon(true);
              t.setName("nacos-server-performance");
              return t;
          }
      });
  
      private static final long PERIOD = 5 * 60;
  
      @PostConstruct
      public void init() {
          start();
      }
  
      private void start() {
          PerformanceLogTask task = new PerformanceLogTask();
          executor.scheduleWithFixedDelay(task, 30, PERIOD, TimeUnit.SECONDS);
      }
  
      @Scheduled(cron = "0 0 0 * * ?")
      public void refreshMetrics() {
          pushService.setFailedPush(0);
          pushService.setTotalPush(0);
          MetricsMonitor.getHttpHealthCheckMonitor().set(0);
          MetricsMonitor.getMysqlHealthCheckMonitor().set(0);
          MetricsMonitor.getTcpHealthCheckMonitor().set(0);
      }
  
      @Scheduled(cron = "0/15 * * * * ?")
      public void collectMetrics() {
          int serviceCount = serviceManager.getServiceCount();
          MetricsMonitor.getDomCountMonitor().set(serviceCount);
  
          int ipCount = serviceManager.getInstanceCount();
          MetricsMonitor.getIpCountMonitor().set(ipCount);
  
          long maxPushCost = getMaxPushCost();
          MetricsMonitor.getMaxPushCostMonitor().set(maxPushCost);
  
          long avgPushCost = getAvgPushCost();
          MetricsMonitor.getAvgPushCostMonitor().set(avgPushCost);
  
          MetricsMonitor.getTotalPushMonitor().set(pushService.getTotalPush());
          MetricsMonitor.getFailedPushMonitor().set(pushService.getFailedPushCount());
  
          if (raftCore.isLeader()) {
              MetricsMonitor.getLeaderStatusMonitor().set(1);
          } else if (raftCore.getPeerSet().local().state == RaftPeer.State.FOLLOWER) {
              MetricsMonitor.getLeaderStatusMonitor().set(0);
          } else {
              MetricsMonitor.getLeaderStatusMonitor().set(2);
          }
      }
  
      class PerformanceLogTask implements Runnable {
  
          @Override
          public void run() {
              try {
                  int serviceCount = serviceManager.getServiceCount();
                  int ipCount = serviceManager.getInstanceCount();
                  long maxPushCost = getMaxPushCost();
                  long avgPushCost = getAvgPushCost();
  
                  Loggers.PERFORMANCE_LOG.info("PERFORMANCE:" + "|" + serviceCount + "|" + ipCount + "|" + maxPushCost + "|" + avgPushCost);
              } catch (Exception e) {
                  Loggers.SRV_LOG.warn("[PERFORMANCE] Exception while print performance log.", e);
              }
  
          }
      }
  
      private long getMaxPushCost() {
          long max = -1;
  
          for (Map.Entry<String, Long> entry : PushService.pushCostMap.entrySet()) {
              if (entry.getValue() > max) {
                  max = entry.getValue();
              }
          }
  
          return max;
      }
  
      private long getAvgPushCost() {
          int size = 0;
          long totalCost = 0;
          long avgCost = -1;
  
          for (Map.Entry<String, Long> entry : PushService.pushCostMap.entrySet()) {
              size += 1;
              totalCost += entry.getValue();
          }
          PushService.pushCostMap.clear();
  
          if (size > 0 && totalCost > 0) {
              avgCost = totalCost / size;
          }
          return avgCost;
      }
  }
  