ImportanceAwareNodeSelector.h

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#pragma once
#include "catapult/extensions/NodeSelector.h"
#include "catapult/ionet/Node.h"
#include "catapult/ionet/NodeInfo.h"
 
namespace catapult {
    namespace cache { class ImportanceView; }
    namespace ionet { class NodeContainerView; }
}
 
namespace catapult { namespace timesync {
 
    class ImportanceAwareNodeSelector {
    public:
        using NodeSelector = std::function<ionet::NodeSet (extensions::WeightedCandidates&, uint64_t, size_t)>;
 
    public:
        explicit ImportanceAwareNodeSelector(ionet::ServiceIdentifier serviceId, uint8_t maxNodes, Importance minImportance);
 
        explicit ImportanceAwareNodeSelector(
                ionet::ServiceIdentifier serviceId,
                uint8_t maxNodes,
                Importance minImportance,
                const NodeSelector& selector);
 
    public:
        ionet::NodeSet selectNodes(
                const cache::ImportanceView& importanceView,
                const ionet::NodeContainerView& nodeContainerView,
                Height height) const;
 
    private:
        std::pair<bool, Importance> isCandidate(
                const cache::ImportanceView& importanceView,
                const ionet::Node& node,
                const ionet::NodeInfo& nodeInfo,
                Height height) const;
 
    private:
        ionet::ServiceIdentifier m_serviceId;
        uint8_t m_maxNodes;
        Importance m_minImportance;
        NodeSelector m_selector;
    };
}}