1 files changed, 38 insertions, 0 deletions
diff --git a/lib/livestatus/invavgaggregator.cpp b/lib/livestatus/invavgaggregator.cpp
new file mode 100644
index 0000000..33cf85c
--- /dev/null
+++ b/lib/livestatus/invavgaggregator.cpp
@@ -0,0 +1,38 @@
+/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
+
+#include "livestatus/invavgaggregator.hpp"
+
+using namespace icinga;
+
+InvAvgAggregator::InvAvgAggregator(String attr)
+	: m_InvAvgAttr(std::move(attr))
+{ }
+
+InvAvgAggregatorState *InvAvgAggregator::EnsureState(AggregatorState **state)
+{
+	if (!*state)
+		*state = new InvAvgAggregatorState();
+
+	return static_cast<InvAvgAggregatorState *>(*state);
+}
+
+void InvAvgAggregator::Apply(const Table::Ptr& table, const Value& row, AggregatorState **state)
+{
+	Column column = table->GetColumn(m_InvAvgAttr);
+
+	Value value = column.ExtractValue(row);
+
+	InvAvgAggregatorState *pstate = EnsureState(state);
+
+	pstate->InvAvg += (1.0 / value);
+	pstate->InvAvgCount++;
+}
+
+double InvAvgAggregator::GetResultAndFreeState(AggregatorState *state) const
+{
+	InvAvgAggregatorState *pstate = EnsureState(&state);
+	double result = pstate->InvAvg / pstate->InvAvgCount;
+	delete pstate;
+
+	return result;
+}