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livestatus: implement avg,min,max,std,invsum,invavg stats aggregators 

fixes #4398
This commit is contained in:
Michael Friedrich 2013-07-12 12:07:32 +02:00
parent 2a3b41f948
commit cfb3c9cf9f
16 changed files with 629 additions and 6 deletions
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12
components/livestatus/Makefile.am
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@ -16,6 +16,8 @@ liblivestatus_la_SOURCES = \
attributefilter.h \ attributefilter.h \
andfilter.cpp \ andfilter.cpp \
andfilter.h \ andfilter.h \
avgaggregator.cpp \
avgaggregator.h \
column.cpp \ column.cpp \
column.h \ column.h \
combinerfilter.cpp \ combinerfilter.cpp \
@ -40,9 +42,17 @@ liblivestatus_la_SOURCES = \
hostgroupstable.h \ hostgroupstable.h \
hoststable.cpp \ hoststable.cpp \
hoststable.h \ hoststable.h \
invavgaggregator.cpp \
invavgaggregator.h \
invsumaggregator.cpp \
invsumaggregator.h \
livestatus-type.cpp \ livestatus-type.cpp \
logtable.cpp \ logtable.cpp \
logtable.h \ logtable.h \
maxaggregator.cpp \
maxaggregator.h \
minaggregator.cpp \
minaggregator.h \
negatefilter.cpp \ negatefilter.cpp \
negatefilter.h \ negatefilter.h \
orfilter.cpp \ orfilter.cpp \
@ -55,6 +65,8 @@ liblivestatus_la_SOURCES = \
servicestable.h \ servicestable.h \
statustable.cpp \ statustable.cpp \
statustable.h \ statustable.h \
stdaggregator.cpp \
stdaggregator.h \
sumaggregator.cpp \ sumaggregator.cpp \
sumaggregator.h \ sumaggregator.h \
timeperiodstable.cpp \ timeperiodstable.cpp \

43
components/livestatus/avgaggregator.cpp Normal file
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@ -0,0 +1,43 @@
/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "livestatus/avgaggregator.h"
using namespace livestatus;
AvgAggregator::AvgAggregator(const String& attr)
: m_Avg(0), m_AvgCount(0)
{
m_AvgAttr = attr;
}
void AvgAggregator::Apply(const Table::Ptr& table, const Value& row)
{
Column column = table->GetColumn(m_AvgAttr);
Value value = column.ExtractValue(row);
m_Avg += value;
m_AvgCount++;
}
double AvgAggregator::GetResult(void) const
{
return (m_Avg / m_AvgCount);
}

50
components/livestatus/avgaggregator.h Normal file
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@ -0,0 +1,50 @@
/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#ifndef AVGAGGREGATOR_H
#define AVGAGGREGATOR_H
#include "livestatus/table.h"
#include "livestatus/aggregator.h"
namespace livestatus
{
/**
* @ingroup livestatus
*/
class AvgAggregator : public Aggregator
{
public:
DECLARE_PTR_TYPEDEFS(AvgAggregator);
AvgAggregator(const String& attr);
virtual void Apply(const Table::Ptr& table, const Value& row);
virtual double GetResult(void) const;
private:
double m_Avg;
double m_AvgCount;
String m_AvgAttr;
};
}
#endif /* AVGAGGREGATOR_H */

43
components/livestatus/invavgaggregator.cpp Normal file
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@ -0,0 +1,43 @@
/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "livestatus/invavgaggregator.h"
using namespace livestatus;
InvAvgAggregator::InvAvgAggregator(const String& attr)
: m_InvAvg(0), m_InvAvgCount(0)
{
m_InvAvgAttr = attr;
}
void InvAvgAggregator::Apply(const Table::Ptr& table, const Value& row)
{
Column column = table->GetColumn(m_InvAvgAttr);
Value value = column.ExtractValue(row);
m_InvAvg += (1.0 / value);
m_InvAvgCount++;
}
double InvAvgAggregator::GetResult(void) const
{
return (m_InvAvg / m_InvAvgCount);
}

50
components/livestatus/invavgaggregator.h Normal file
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@ -0,0 +1,50 @@
/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#ifndef INVAVGAGGREGATOR_H
#define INVAVGAGGREGATOR_H
#include "livestatus/table.h"
#include "livestatus/aggregator.h"
namespace livestatus
{
/**
* @ingroup livestatus
*/
class InvAvgAggregator : public Aggregator
{
public:
DECLARE_PTR_TYPEDEFS(InvAvgAggregator);
InvAvgAggregator(const String& attr);
virtual void Apply(const Table::Ptr& table, const Value& row);
virtual double GetResult(void) const;
private:
double m_InvAvg;
double m_InvAvgCount;
String m_InvAvgAttr;
};
}
#endif /* INVAVGAGGREGATOR_H */

42
components/livestatus/invsumaggregator.cpp Normal file
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@ -0,0 +1,42 @@
/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "livestatus/invsumaggregator.h"
using namespace livestatus;
InvSumAggregator::InvSumAggregator(const String& attr)
: m_InvSum(0)
{
m_InvSumAttr = attr;
}
void InvSumAggregator::Apply(const Table::Ptr& table, const Value& row)
{
Column column = table->GetColumn(m_InvSumAttr);
Value value = column.ExtractValue(row);
m_InvSum += (1.0 / value);
}
double InvSumAggregator::GetResult(void) const
{
return m_InvSum;
}

49
components/livestatus/invsumaggregator.h Normal file
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@ -0,0 +1,49 @@
/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#ifndef INVSUMAGGREGATOR_H
#define INVSUMAGGREGATOR_H
#include "livestatus/table.h"
#include "livestatus/aggregator.h"
namespace livestatus
{
/**
* @ingroup livestatus
*/
class InvSumAggregator : public Aggregator
{
public:
DECLARE_PTR_TYPEDEFS(InvSumAggregator);
InvSumAggregator(const String& attr);
virtual void Apply(const Table::Ptr& table, const Value& row);
virtual double GetResult(void) const;
private:
double m_InvSum;
String m_InvSumAttr;
};
}
#endif /* INVSUMAGGREGATOR_H */

12
components/livestatus/livestatus.vcxproj
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@ -22,6 +22,12 @@
<ClInclude Include="aggregator.h" /> <ClInclude Include="aggregator.h" />
<ClInclude Include="countaggregator.h" /> <ClInclude Include="countaggregator.h" />
<ClInclude Include="sumaggregator.h" /> <ClInclude Include="sumaggregator.h" />
<ClInclude Include="avgaggregator.h" />
<ClInclude Include="minaggregator.h" />
<ClInclude Include="maxaggregator.h" />
<ClInclude Include="stdaggregator.h" />
<ClInclude Include="invsumaggregator.h" />
<ClInclude Include="invavgaggregator.h" />
<ClInclude Include="andfilter.h" /> <ClInclude Include="andfilter.h" />
<ClInclude Include="attributefilter.h" /> <ClInclude Include="attributefilter.h" />
<ClInclude Include="column.h" /> <ClInclude Include="column.h" />
@ -50,6 +56,12 @@
<ClCompile Include="aggregator.cpp" /> <ClCompile Include="aggregator.cpp" />
<ClCompile Include="countaggregator.cpp" /> <ClCompile Include="countaggregator.cpp" />
<ClCompile Include="sumaggregator.cpp" /> <ClCompile Include="sumaggregator.cpp" />
<ClInclude Include="avgaggregator.cpp" />
<ClInclude Include="minaggregator.cpp" />
<ClInclude Include="maxaggregator.cpp" />
<ClInclude Include="stdaggregator.cpp" />
<ClInclude Include="invsumaggregator.cpp" />
<ClInclude Include="invavgaggregator.cpp" />
<ClCompile Include="andfilter.cpp" /> <ClCompile Include="andfilter.cpp" />
<ClCompile Include="attributefilter.cpp" /> <ClCompile Include="attributefilter.cpp" />
<ClCompile Include="column.cpp" /> <ClCompile Include="column.cpp" />

36
components/livestatus/livestatus.vcxproj.filters
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@ -51,6 +51,24 @@
<ClInclude Include="sumaggregator.h"> <ClInclude Include="sumaggregator.h">
<Filter>Headerdateien</Filter> <Filter>Headerdateien</Filter>
</ClInclude> </ClInclude>
<ClInclude Include="sumaggregator.h">
<Filter>Headerdateien</Filter>
</ClInclude>
<ClInclude Include="minaggregator.h">
<Filter>Headerdateien</Filter>
</ClInclude>
<ClInclude Include="maxaggregator.h">
<Filter>Headerdateien</Filter>
</ClInclude>
<ClInclude Include="stdaggregator.h">
<Filter>Headerdateien</Filter>
</ClInclude>
<ClInclude Include="invavgaggregator.h">
<Filter>Headerdateien</Filter>
</ClInclude>
<ClInclude Include="invsumaggregator.h">
<Filter>Headerdateien</Filter>
</ClInclude>
<ClInclude Include="andfilter.h"> <ClInclude Include="andfilter.h">
<Filter>Headerdateien</Filter> <Filter>Headerdateien</Filter>
</ClInclude> </ClInclude>
@ -131,6 +149,24 @@
<ClCompile Include="sumaggregator.cpp"> <ClCompile Include="sumaggregator.cpp">
<Filter>Quelldateien</Filter> <Filter>Quelldateien</Filter>
</ClCompile> </ClCompile>
<ClCompile Include="avgaggregator.cpp">
<Filter>Quelldateien</Filter>
</ClCompile>
<ClCompile Include="minaggregator.cpp">
<Filter>Quelldateien</Filter>
</ClCompile>
<ClCompile Include="maxaggregator.cpp">
<Filter>Quelldateien</Filter>
</ClCompile>
<ClCompile Include="stdaggregator.cpp">
<Filter>Quelldateien</Filter>
</ClCompile>
<ClCompile Include="invavgaggregator.cpp">
<Filter>Quelldateien</Filter>
</ClCompile>
<ClCompile Include="invsumaggregator.cpp">
<Filter>Quelldateien</Filter>
</ClCompile>
<ClCompile Include="attributefilter.cpp"> <ClCompile Include="attributefilter.cpp">
<Filter>Quelldateien</Filter> <Filter>Quelldateien</Filter>
</ClCompile> </ClCompile>

43
components/livestatus/maxaggregator.cpp Normal file
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@ -0,0 +1,43 @@
/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "livestatus/maxaggregator.h"
using namespace livestatus;
MaxAggregator::MaxAggregator(const String& attr)
: m_Max(0)
{
m_MaxAttr = attr;
}
void MaxAggregator::Apply(const Table::Ptr& table, const Value& row)
{
Column column = table->GetColumn(m_MaxAttr);
Value value = column.ExtractValue(row);
if (value > m_Max)
m_Max = value;
}
double MaxAggregator::GetResult(void) const
{
return m_Max;
}

49
components/livestatus/maxaggregator.h Normal file
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@ -0,0 +1,49 @@
/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#ifndef MAXAGGREGATOR_H
#define MAXAGGREGATOR_H
#include "livestatus/table.h"
#include "livestatus/aggregator.h"
namespace livestatus
{
/**
* @ingroup livestatus
*/
class MaxAggregator : public Aggregator
{
public:
DECLARE_PTR_TYPEDEFS(MaxAggregator);
MaxAggregator(const String& attr);
virtual void Apply(const Table::Ptr& table, const Value& row);
virtual double GetResult(void) const;
private:
double m_Max;
String m_MaxAttr;
};
}
#endif /* MAXAGGREGATOR_H */

43
components/livestatus/minaggregator.cpp Normal file
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@ -0,0 +1,43 @@
/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "livestatus/minaggregator.h"
using namespace livestatus;
MinAggregator::MinAggregator(const String& attr)
: m_Min(0)
{
m_MinAttr = attr;
}
void MinAggregator::Apply(const Table::Ptr& table, const Value& row)
{
Column column = table->GetColumn(m_MinAttr);
Value value = column.ExtractValue(row);
if (value < m_Min)
m_Min = value;
}
double MinAggregator::GetResult(void) const
{
return m_Min;
}

49
components/livestatus/minaggregator.h Normal file
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@ -0,0 +1,49 @@
/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#ifndef MINAGGREGATOR_H
#define MINAGGREGATOR_H
#include "livestatus/table.h"
#include "livestatus/aggregator.h"
namespace livestatus
{
/**
* @ingroup livestatus
*/
class MinAggregator : public Aggregator
{
public:
DECLARE_PTR_TYPEDEFS(MinAggregator);
MinAggregator(const String& attr);
virtual void Apply(const Table::Ptr& table, const Value& row);
virtual double GetResult(void) const;
private:
double m_Min;
String m_MinAttr;
};
}
#endif /* MINAGGREGATOR_H */

18
components/livestatus/query.cpp
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@ -20,6 +20,12 @@
#include "livestatus/query.h" #include "livestatus/query.h"
#include "livestatus/countaggregator.h" #include "livestatus/countaggregator.h"
#include "livestatus/sumaggregator.h" #include "livestatus/sumaggregator.h"
#include "livestatus/minaggregator.h"
#include "livestatus/maxaggregator.h"
#include "livestatus/avgaggregator.h"
#include "livestatus/stdaggregator.h"
#include "livestatus/invsumaggregator.h"
#include "livestatus/invavgaggregator.h"
#include "livestatus/attributefilter.h" #include "livestatus/attributefilter.h"
#include "livestatus/negatefilter.h" #include "livestatus/negatefilter.h"
#include "livestatus/orfilter.h" #include "livestatus/orfilter.h"
@ -116,17 +122,17 @@ Query::Query(const std::vector<String>& lines)
if (aggregate_arg == "sum") { if (aggregate_arg == "sum") {
aggregator = boost::make_shared<SumAggregator>(aggregate_attr); aggregator = boost::make_shared<SumAggregator>(aggregate_attr);
} else if (aggregate_arg == "min") { } else if (aggregate_arg == "min") {
/* TODO */ aggregator = boost::make_shared<MinAggregator>(aggregate_attr);
} else if (aggregate_arg == "max") { } else if (aggregate_arg == "max") {
/* TODO */ aggregator = boost::make_shared<MaxAggregator>(aggregate_attr);
} else if (aggregate_arg == "avg") { } else if (aggregate_arg == "avg") {
/* TODO */ aggregator = boost::make_shared<AvgAggregator>(aggregate_attr);
} else if (aggregate_arg == "std") { } else if (aggregate_arg == "std") {
/* TODO */ aggregator = boost::make_shared<StdAggregator>(aggregate_attr);
} else if (aggregate_arg == "suminv") { } else if (aggregate_arg == "suminv") {
/* TODO */ aggregator = boost::make_shared<InvSumAggregator>(aggregate_attr);
} else if (aggregate_arg == "avginv") { } else if (aggregate_arg == "avginv") {
/* TODO */ aggregator = boost::make_shared<InvAvgAggregator>(aggregate_attr);
} else { } else {
filter = ParseFilter(params); filter = ParseFilter(params);

45
components/livestatus/stdaggregator.cpp Normal file
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@ -0,0 +1,45 @@
/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "livestatus/stdaggregator.h"
#include <math.h>
using namespace livestatus;
StdAggregator::StdAggregator(const String& attr)
: m_StdSum(0), m_StdQSum(0), m_StdCount(0)
{
m_StdAttr = attr;
}
void StdAggregator::Apply(const Table::Ptr& table, const Value& row)
{
Column column = table->GetColumn(m_StdAttr);
Value value = column.ExtractValue(row);
m_StdSum += value;
m_StdQSum += pow(value, 2);
m_StdCount++;
}
double StdAggregator::GetResult(void) const
{
return sqrt((m_StdQSum - (1 / m_StdCount) * pow(m_StdSum, 2)) / (m_StdCount - 1));
}

51
components/livestatus/stdaggregator.h Normal file
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@ -0,0 +1,51 @@
/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#ifndef STDAGGREGATOR_H
#define STDAGGREGATOR_H
#include "livestatus/table.h"
#include "livestatus/aggregator.h"
namespace livestatus
{
/**
* @ingroup livestatus
*/
class StdAggregator : public Aggregator
{
public:
DECLARE_PTR_TYPEDEFS(StdAggregator);
StdAggregator(const String& attr);
virtual void Apply(const Table::Ptr& table, const Value& row);
virtual double GetResult(void) const;
private:
double m_StdSum;
double m_StdQSum;
double m_StdCount;
String m_StdAttr;
};
}
#endif /* STDAGGREGATOR_H */