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.sys.utils;
  
  import java.lang.reflect.Method;
  
  /**
   * MethodUtil related.
   *
   * @author yanhom
   */
  public final class MethodUtil {
  
      private MethodUtil() {}
  
      /**
       * Invoke method and return double value.
       *
       * @param method target method
       * @param targetObj the object the underlying method is invoked from
       * @return result
       */
      public static double invokeAndReturnDouble(Method method, Object targetObj) {
          try {
              return method != null ? (double) method.invoke(targetObj) : Double.NaN;
          } catch (Exception e) {
              return Double.NaN;
          }
      }
  
      /**
       * Invoke method and return long value.
       *
       * @param method target method
       * @param targetObj the object the underlying method is invoked from
       * @return result
       */
      public static long invokeAndReturnLong(Method method, Object targetObj) {
          try {
              return method != null ? (long) method.invoke(targetObj) : -1;
          } catch (Exception e) {
              return -1;
          }
      }
  }
  