middleware.hpp

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#pragma once
 
 
#include <conduit/envelope.hpp>
 
#include <commons/prioritized.hpp>
 
#include <exception>
#include <string_view>
 
namespace conduit {
 
class Middleware : public comms::Prioritized {
public:
    Middleware() = default;
    Middleware(const Middleware&) = default;
    Middleware(Middleware&&) noexcept = default;
    Middleware& operator=(const Middleware&) = default;
    Middleware& operator=(Middleware&&) noexcept = default;
    ~Middleware() override = default;
 
    virtual bool before_dispatch(EventEnvelopeView& /*v*/) {
        return true;
    }
    virtual void after_dispatch(EventEnvelopeView& /*v*/) {}
    virtual void on_error(EventEnvelopeView& /*v*/, const std::exception_ptr& /*ep*/) {}
 
    virtual void on_transport_error(std::string_view /*transport*/,
                                    const std::exception_ptr& /*ep*/) {}
};
 
}  // namespace conduit