mirror of https://github.com/Icinga/icinga2.git
56 lines
2.2 KiB
C++
56 lines
2.2 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2017 Icinga Development Team (https://www.icinga.com/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "livestatus/avgaggregator.hpp"
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using namespace icinga;
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AvgAggregator::AvgAggregator(const String& attr)
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: m_AvgAttr(attr)
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{ }
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AvgAggregatorState *AvgAggregator::EnsureState(AggregatorState **state)
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{
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if (!*state)
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*state = new AvgAggregatorState();
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return static_cast<AvgAggregatorState *>(*state);
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}
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void AvgAggregator::Apply(const Table::Ptr& table, const Value& row, AggregatorState **state)
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{
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Column column = table->GetColumn(m_AvgAttr);
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Value value = column.ExtractValue(row);
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AvgAggregatorState *pstate = EnsureState(state);
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pstate->Avg += value;
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pstate->AvgCount++;
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}
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double AvgAggregator::GetResultAndFreeState(AggregatorState *state) const
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{
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AvgAggregatorState *pstate = EnsureState(&state);
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double result = pstate->Avg / pstate->AvgCount;
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delete pstate;
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return result;
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}
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