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/*
* Copyright 2009, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// Implementation of helper classes to aggregate the collected in-memory
// stats to persistent storage.
#include "aggregator.h"
namespace stats_report {
bool MetricsAggregator::AggregateMetrics() {
if (!StartAggregation())
return false;
MetricIterator it(coll_), end;
for (; it != end; ++it) {
MetricBase *metric = *it;
DCHECK(NULL != metric);
switch (metric->type()) {
case kCountType:
Aggregate(metric->AsCount());
break;
case kTimingType:
Aggregate(metric->AsTiming());
break;
case kIntegerType:
Aggregate(metric->AsInteger());
break;
case kBoolType:
Aggregate(metric->AsBool());
break;
default:
DCHECK(false && "Impossible metric type");
break;
}
}
// done, close up
EndAggregation();
return true;
}
MetricsAggregator::MetricsAggregator() : coll_(g_global_metrics) {
DCHECK(coll_.initialized());
}
MetricsAggregator::MetricsAggregator(const MetricCollection &coll)
: coll_(coll) {
DCHECK(coll_.initialized());
}
MetricsAggregator::~MetricsAggregator() {
}
bool MetricsAggregator::StartAggregation() {
// nothing
return true;
}
void MetricsAggregator::EndAggregation() {
// nothing
}
} // namespace stats_report
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