granicus.if.org Git - icinga2/blob - lib/livestatus/invsumaggregator.cpp

   1 /******************************************************************************
   2  * Icinga 2                                                                   *
   3  * Copyright (C) 2012-2016 Icinga Development Team (https://www.icinga.org/)  *
   4  *                                                                            *
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   8  * of the License, or (at your option) any later version.                     *
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  10  * This program is distributed in the hope that it will be useful,            *
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  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
  13  * GNU General Public License for more details.                               *
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  18  ******************************************************************************/
  19
  20 #include "livestatus/invsumaggregator.hpp"
  21
  22 using namespace icinga;
  23
  24 InvSumAggregator::InvSumAggregator(const String& attr)
  25     : m_InvSum(0), m_InvSumAttr(attr)
  26 { }
  27
  28 void InvSumAggregator::Apply(const Table::Ptr& table, const Value& row)
  29 {
  30         Column column = table->GetColumn(m_InvSumAttr);
  31
  32         Value value = column.ExtractValue(row);
  33
  34         m_InvSum += (1.0 / value);
  35 }
  36
  37 double InvSumAggregator::GetResult(void) const
  38 {
  39         return m_InvSum;
  40 }