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#ifndef TESTS_STATISTICS_H
#define TESTS_STATISTICS_H
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include <qpid/sys/Time.h>
#include <limits>
#include <iosfwd>
#include <memory>
namespace qpid {
namespace messaging {
class Message;
}
namespace tests {
class Statistic {
public:
virtual ~Statistic();
virtual void message(const messaging::Message&) = 0;
virtual void report(std::ostream&) const = 0;
virtual void header(std::ostream&) const = 0;
};
class Throughput : public Statistic {
public:
Throughput();
virtual void message(const messaging::Message&);
virtual void report(std::ostream&) const;
virtual void header(std::ostream&) const;
protected:
int messages;
private:
bool started;
sys::AbsTime start;
};
class ThroughputAndLatency : public Throughput {
public:
ThroughputAndLatency();
virtual void message(const messaging::Message&);
virtual void report(std::ostream&) const;
virtual void header(std::ostream&) const;
private:
double total, min, max; // Milliseconds
int samples;
};
/** Report batch and overall statistics */
class ReporterBase {
public:
virtual ~ReporterBase();
/** Count message in the statistics */
void message(const messaging::Message& m);
/** Print overall report. */
void report();
protected:
ReporterBase(std::ostream& o, int batchSize, bool wantHeader);
virtual std::auto_ptr<Statistic> create() = 0;
private:
void header();
void report(const Statistic& s);
std::auto_ptr<Statistic> overall;
std::auto_ptr<Statistic> batch;
int batchSize, batchCount;
bool stopped, headerPrinted;
std::ostream& out;
};
template <class Stats> class Reporter : public ReporterBase {
public:
Reporter(std::ostream& o, int batchSize, bool wantHeader)
: ReporterBase(o, batchSize, wantHeader) {}
virtual std::auto_ptr<Statistic> create() {
return std::auto_ptr<Statistic>(new Stats);
}
};
}} // namespace qpid::tests
#endif /*!TESTS_STATISTICS_H*/
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