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.druid.util;
  
  import com.alibaba.druid.stat.JdbcSqlStat;
  import com.alibaba.druid.support.logging.Log;
  import com.alibaba.druid.support.logging.LogFactory;
  
  import java.lang.reflect.Method;
  import java.util.Arrays;
  import java.util.Map;
  import java.util.concurrent.atomic.AtomicInteger;
  import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
  import java.util.concurrent.atomic.AtomicLong;
  import java.util.concurrent.atomic.AtomicLongFieldUpdater;
  
  public class JdbcSqlStatUtils {
      private static final Log LOG = LogFactory.getLog(JdbcSqlStatUtils.class);
  
      @SuppressWarnings("unchecked")
      public static Map<String, Object> getData(Object jdbcSqlStat) {
          try {
              if (jdbcSqlStat.getClass() == JdbcSqlStat.class) {
                  return ((JdbcSqlStat) jdbcSqlStat).getData();
              }
  
              Method method = jdbcSqlStat.getClass().getMethod("getData");
              Object obj = method.invoke(jdbcSqlStat);
              return (Map<String, Object>) obj;
          } catch (Exception e) {
              LOG.error("getData error", e);
              return null;
          }
      }
  
      public static long[] rtrim(long[] array) {
          int notZeroLen = array.length;
          for (int i = array.length - 1; i >= 0; --i, notZeroLen--) {
              if (array[i] != 0) {
                  break;
              }
          }
  
          if (notZeroLen != array.length) {
              array = Arrays.copyOf(array, notZeroLen);
          }
  
          return array;
      }
  
      public static <T> int get(T stat, AtomicIntegerFieldUpdater<T> updater, boolean reset) {
          if (reset) {
              return updater.getAndSet(stat, 0);
          } else {
              return updater.get(stat);
          }
      }
  
      public static <T> long get(T stat, AtomicLongFieldUpdater<T> updater, boolean reset) {
          if (reset) {
              return updater.getAndSet(stat, 0);
          } else {
              return updater.get(stat);
          }
      }
  
      public static long get(AtomicLong counter, boolean reset) {
          if (reset) {
              return counter.getAndSet(0);
          } else {
              return counter.get();
          }
      }
  
      public static int get(AtomicInteger counter, boolean reset) {
          if (reset) {
              return counter.getAndSet(0);
          } else {
              return counter.get();
          }
      }
  }
  