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.alarm.provider;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class Threshold {
      private static final Logger LOGGER = LoggerFactory.getLogger(Threshold.class);
      private static final String NONE_THRESHOLD = "-";
  
      private String alarmRuleName;
      private final String threshold;
      private int intThreshold;
      private double doubleThreshold;
      private long longThreshold;
      private Integer[] intValuesThreshold;
  
      public Threshold(String alarmRuleName, String threshold) {
          this.alarmRuleName = alarmRuleName;
          this.threshold = threshold;
      }
  
      public int getIntThreshold() {
          return intThreshold;
      }
  
      public double getDoubleThreshold() {
          return doubleThreshold;
      }
  
      public long getLongThreshold() {
          return longThreshold;
      }
  
      public Integer[] getIntValuesThreshold() {
          return intValuesThreshold;
      }
  
      public void setType(MetricsValueType type) {
          try {
              switch (type) {
                  case INT:
                      intThreshold = Integer.parseInt(threshold);
                      break;
                  case LONG:
                      longThreshold = Long.parseLong(threshold);
                      break;
                  case DOUBLE:
                      doubleThreshold = Double.parseDouble(threshold);
                      break;
                  case MULTI_INTS:
                      String[] strings = threshold.split(",");
                      intValuesThreshold = new Integer[strings.length];
                      for (int i = 0; i < strings.length; i++) {
                          String thresholdItem = strings[i].trim();
                          if (NONE_THRESHOLD.equals(thresholdItem)) {
                              intValuesThreshold[i] = null;
                          } else {
                              intValuesThreshold[i] = Integer.parseInt(thresholdItem);
                          }
                      }
              }
          } catch (NumberFormatException e) {
              LOGGER.warn("Alarm rule {} threshold doesn't match the metrics type, expected type: {}", alarmRuleName, type);
          }
      }
  }
  