content: /*
   * Copyright 1999-2020 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.monitor;
  
  import java.util.Optional;
  import java.util.concurrent.ConcurrentHashMap;
  import java.util.concurrent.ConcurrentMap;
  import java.util.concurrent.atomic.AtomicInteger;
  import java.util.concurrent.atomic.AtomicLong;
  
  /**
   * Distro records holder.
   *
   * @author xiweng.yy
   */
  public class DistroRecordsHolder {
      
      private static final DistroRecordsHolder INSTANCE = new DistroRecordsHolder();
      
      private final ConcurrentMap<String, DistroRecord> distroRecords;
      
      private DistroRecordsHolder() {
          distroRecords = new ConcurrentHashMap<>();
      }
      
      public static DistroRecordsHolder getInstance() {
          return INSTANCE;
      }
      
      public Optional<DistroRecord> getRecordIfExist(String type) {
          return Optional.ofNullable(distroRecords.get(type));
      }
      
      public DistroRecord getRecord(String type) {
          return distroRecords.computeIfAbsent(type, s -> new DistroRecord(type));
      }
      
      public long getTotalSyncCount() {
          final AtomicLong result = new AtomicLong();
          distroRecords.forEach((s, distroRecord) -> result.addAndGet(distroRecord.getTotalSyncCount()));
          return result.get();
      }
      
      public long getSuccessfulSyncCount() {
          final AtomicLong result = new AtomicLong();
          distroRecords.forEach((s, distroRecord) -> result.addAndGet(distroRecord.getSuccessfulSyncCount()));
          return result.get();
      }
      
      public long getFailedSyncCount() {
          final AtomicLong result = new AtomicLong();
          distroRecords.forEach((s, distroRecord) -> result.addAndGet(distroRecord.getFailedSyncCount()));
          return result.get();
      }
      
      public int getFailedVerifyCount() {
          final AtomicInteger result = new AtomicInteger();
          distroRecords.forEach((s, distroRecord) -> result.addAndGet(distroRecord.getFailedVerifyCount()));
          return result.get();
      }
  }
  