IFailoverStrategy.hpp

Go to the documentation of this file.

#ifndef IFAILOVERSTRATEGY_HPP_
#define IFAILOVERSTRATEGY_HPP_

#include <memory>
#include <cstdint>

namespace kaa {

enum class Failover {
    BOOTSTRAP_SERVERS_NA = 0, 
    NO_OPERATION_SERVERS_RECEIVED,
    OPERATION_SERVERS_NA,
    CURRENT_BOOTSTRAP_SERVER_NA,
    NO_CONNECTIVITY
};

enum class FailoverStrategyAction {
    NOOP = 0, 
    RETRY,    
    USE_NEXT_BOOTSTRAP,
    USE_NEXT_OPERATIONS,
    STOP_APP
};

class FailoverStrategyDecision {

public:
        FailoverStrategyDecision(const FailoverStrategyAction& action, const std::int32_t& retryPeriod)
        : action_(action), retryPeriod_(retryPeriod) {}

        FailoverStrategyDecision(const FailoverStrategyAction& action)
        : action_(action), retryPeriod_(0) {}

        FailoverStrategyAction getAction() const {
        return action_;
    }

    std::size_t getRetryPeriod() const {
        return retryPeriod_;
    }

private:
        FailoverStrategyAction action_;
        std::size_t retryPeriod_;
};

class IFailoverStrategy {
public:

        virtual FailoverStrategyDecision onFailover(Failover failover) = 0;

        virtual ~IFailoverStrategy() {}

};

typedef std::shared_ptr<IFailoverStrategy> IFailoverStrategyPtr;

}

#endif /* IFAILOVERSTRATEGY_HPP_ */