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MonitoringFactory.h
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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
///
/// \file MonitoringFactory.h
/// \author Adam Wegrzynek <adam.wegrzynek@cern.ch>
///
#ifndef ALICEO2_MONITORING_FACTORY_H
#define ALICEO2_MONITORING_FACTORY_H
#include "Monitoring/Monitoring.h"
#include "Monitoring/PullClient.h"
namespace o2
{
/// ALICE O2 Monitoring system
namespace monitoring
{
/// \brief Monitoring and monitoring backends factory
class MonitoringFactory
{
public:
/// Disables copy constructor
MonitoringFactory& operator=(const MonitoringFactory&) = delete;
MonitoringFactory(const MonitoringFactory&) = delete;
/// Provides single instance on Monitoring Monitoring (singleton)
/// \return renerence to Monitoring instance
/// \throw MonitoringException when backend initialisation failed
static std::unique_ptr<Monitoring> Get(std::string urlsString) noexcept(false);
/// Provides a Monitoring backend based on the URL
/// \return monitoring backend
/// \throw MonitoringException when backend initialisation failed
static std::unique_ptr<Backend> GetBackend(std::string& url);
static std::unique_ptr<PullClient> GetPullClient(const std::string &url, const std::vector<std::string>& topics, const std::string &label = "o2-monitoring-group");
private:
/// Private constructor disallows to create instance of Factory
MonitoringFactory() = default;
/// Sets backend verbosity based on the URL path
static void SetVerbosity(std::string selected, std::unique_ptr<Backend>& backend);
};
} // namespace monitoring
} // namespace o2
#endif // ALICEO2_MONITORING_FACTORY_H