Initial commit
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Matthias
Executable
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#pragma once
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#include <wfr/common/types/WfrTypes.h>
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#include <wfr/common/types/WfsTypes.h>
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#include <chrono>
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#include <string>
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#include <memory>
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namespace wfr {
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namespace wfs {
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// Forward declarations
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class Workflow;
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class Activity;
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class ActivityInstance;
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class AtomicActivityImplementation;
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}
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// main namespace
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namespace eventsystem {
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/**
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* Event Types.
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**/
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enum class EventType
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: int { GeneralLoggingEvent,
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WorkflowStatusEvent,
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ActivityStatusEvent,
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ActivityInstanceStatusEvent,
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ComputingResourceStatusEvent,
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ComponentStatusEvent };
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/**
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* Abstract event base class.
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**/
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class Event {
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// Invariant parameters that can be accessed directly
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public:
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const EventType eventType;
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const wfr_timestamp_sc_t timestamp;
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// Public functions
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public:
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Event(EventType type, const wfr_timestamp_sc_t& timestamp) noexcept
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: eventType(type), timestamp(timestamp) {}
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virtual ~Event() noexcept {}
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virtual std::string toString() const noexcept = 0;
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template<class T>
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T& as() noexcept { return *static_cast<T*>(this); }
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template<class T>
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const T& as() const noexcept { return *static_cast<const T*>(this); }
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};
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/**
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* Event for logging arbitrary messages
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**/
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class GeneralLoggingEvent : public Event {
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protected:
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std::string logMessage;
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public:
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GeneralLoggingEvent( const std::string& message,
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const wfr_timestamp_sc_t& timestamp = std::chrono::system_clock::now() ) noexcept
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: Event(EventType::GeneralLoggingEvent, timestamp), logMessage(message) {}
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const std::string& getMessage() const noexcept { return logMessage; }
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virtual std::string toString() const noexcept override;
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static std::shared_ptr<GeneralLoggingEvent> fireEvent( const std::string& message,
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const wfr_timestamp_sc_t& timestamp = std::chrono::system_clock::now(),
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bool noLocking = false ) noexcept;
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};
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/**
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* Event to indicate that the state of a workflow changed.
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**/
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class WorkflowStatusEvent : public Event {
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protected:
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wfr::wfs::Workflow& workflow;
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wfr::wfs::WorkflowStatus oldStatus;
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wfr::wfs::WorkflowStatus newStatus;
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public:
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WorkflowStatusEvent( wfr::wfs::Workflow& workflow,
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wfr::wfs::WorkflowStatus& oldStatus,
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wfr::wfs::WorkflowStatus& newStatus,
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const wfr_timestamp_sc_t& timestamp = std::chrono::system_clock::now() ) noexcept
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: Event(EventType::WorkflowStatusEvent, timestamp), workflow(workflow), oldStatus(oldStatus), newStatus(newStatus) {}
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wfr::wfs::WorkflowStatus getNewStatus() const noexcept { return newStatus; }
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wfr::wfs::WorkflowStatus getOldStatus() const noexcept { return oldStatus; }
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wfr::wfs::Workflow& getWorkflow() const noexcept { return workflow; }
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virtual std::string toString() const noexcept override;
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static std::shared_ptr<WorkflowStatusEvent> fireEvent( wfr::wfs::Workflow& workflow,
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wfr::wfs::WorkflowStatus& oldStatus,
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wfr::wfs::WorkflowStatus& newStatus,
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const wfr_timestamp_sc_t& timestamp = std::chrono::system_clock::now(),
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bool noLocking = false ) noexcept;
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};
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/**
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* Event to indicate that the state of an activity changed.
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**/
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class ActivityStatusEvent : public Event {
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protected:
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wfr::wfs::Activity& activity;
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wfr::wfs::ActivityStatus oldStatus;
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wfr::wfs::ActivityStatus newStatus;
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public:
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ActivityStatusEvent( wfr::wfs::Activity& activity,
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wfr::wfs::ActivityStatus oldStatus,
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wfr::wfs::ActivityStatus newStatus,
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const wfr_timestamp_sc_t& timestamp = std::chrono::system_clock::now() ) noexcept
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: Event(EventType::ActivityStatusEvent, timestamp), activity(activity), oldStatus(oldStatus), newStatus(newStatus) {}
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wfr::wfs::Activity& getActivity() const noexcept { return activity; }
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wfr::wfs::ActivityStatus getNewStatus() const noexcept { return newStatus; }
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wfr::wfs::ActivityStatus getOldStatus() const noexcept { return oldStatus; }
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virtual std::string toString() const noexcept override;
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static std::shared_ptr<ActivityStatusEvent> fireEvent( wfr::wfs::Activity& activity,
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wfr::wfs::ActivityStatus oldStatus,
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wfr::wfs::ActivityStatus newStatus,
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const wfr_timestamp_sc_t& timestamp = std::chrono::system_clock::now(),
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bool noLocking = false ) noexcept;
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};
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/**
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* Event to indicate that the state of an activity instance changed.
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**/
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class ActivityInstanceStatusEvent : public Event {
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protected:
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wfr::wfs::ActivityInstance& activityInstance;
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wfr::wfs::ActivityInstanceStatus oldStatus;
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wfr::wfs::ActivityInstanceStatus newStatus;
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public:
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ActivityInstanceStatusEvent( wfr::wfs::ActivityInstance& activityInstance,
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wfr::wfs::ActivityInstanceStatus oldStatus,
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wfr::wfs::ActivityInstanceStatus newStatus,
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const wfr_timestamp_sc_t& timestamp = std::chrono::system_clock::now() ) noexcept
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: Event(EventType::ActivityInstanceStatusEvent, timestamp), activityInstance(activityInstance), oldStatus(oldStatus), newStatus(newStatus) {}
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wfr::wfs::ActivityInstance& getActivityInstance() const noexcept { return activityInstance; }
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wfr::wfs::ActivityInstanceStatus getNewStatus() const noexcept { return newStatus; }
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wfr::wfs::ActivityInstanceStatus getOldStatus() const noexcept { return oldStatus; }
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virtual std::string toString() const noexcept override;
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static std::shared_ptr<ActivityInstanceStatusEvent> fireEvent( wfr::wfs::ActivityInstance& activity,
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wfr::wfs::ActivityInstanceStatus oldStatus,
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wfr::wfs::ActivityInstanceStatus newStatus,
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const wfr_timestamp_sc_t& timestamp = std::chrono::system_clock::now(),
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bool noLocking = false ) noexcept;
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};
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/**
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* Event to indicate that the state of a WFR component changed.
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*/
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class ComponentStatusEvent : public Event {
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protected:
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wfs::ComponentType componentType;
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wfs::ComponentStatus oldStatus;
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wfs::ComponentStatus newStatus;
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wfr::wfs::Workflow* workflow;
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public:
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ComponentStatusEvent( wfs::ComponentType componentType,
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wfs::ComponentStatus oldStatus,
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wfs::ComponentStatus newStatus,
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wfr::wfs::Workflow* wf = nullptr,
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const wfr_timestamp_sc_t& timestamp = std::chrono::system_clock::now()) noexcept
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: Event(EventType::ComponentStatusEvent, timestamp), componentType(componentType), oldStatus(oldStatus), newStatus(newStatus), workflow(wf) {}
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wfs::ComponentType getComponentType() const noexcept { return componentType; }
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wfs::ComponentStatus getNewStatus() const noexcept { return newStatus; }
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wfs::ComponentStatus getOldStatus() const noexcept { return oldStatus; }
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wfr::wfs::Workflow* getWorkflow() const noexcept { return workflow; }
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virtual std::string toString() const noexcept override;
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static std::shared_ptr<ComponentStatusEvent> fireEvent( wfs::ComponentType componentType,
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wfs::ComponentStatus oldStatus,
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wfs::ComponentStatus newStatus,
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wfr::wfs::Workflow* wf = nullptr,
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const wfr_timestamp_sc_t& timestamp = std::chrono::system_clock::now(),
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bool noLocking = false ) noexcept;
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};
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/**
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* Event to indicate that the state of a computing resource changed.
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**/
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class ComputingResourceStatusEvent : public Event {
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protected:
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wfr::wfs::Workflow* workflow;
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wfr::wfs::ActivityImplementationType deviceType;
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wfr_id_t deviceID;
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wfr::wfs::ComputingResourceStatus oldStatus;
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wfr::wfs::ComputingResourceStatus newStatus;
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wfr::wfs::ActivityInstance* executedTask;
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wfr::wfs::AtomicActivityImplementation* executedImpl;
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wfr_size_t deviceSlotCount;
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public:
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ComputingResourceStatusEvent(wfr::wfs::Workflow* wf, wfr::wfs::ActivityImplementationType deviceType, wfr_id_t deviceID,
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wfr::wfs::ComputingResourceStatus oldStatus, wfr::wfs::ComputingResourceStatus newStatus,
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wfr::wfs::ActivityInstance* executedTask = nullptr, wfr::wfs::AtomicActivityImplementation* executedImpl = nullptr,
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wfr_size_t deviceSlotCount = 0,
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wfr_timestamp_sc_t timestamp = std::chrono::system_clock::now()) noexcept
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: Event(EventType::ComputingResourceStatusEvent, timestamp), workflow(wf), deviceType(deviceType),
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deviceID(deviceID), oldStatus(oldStatus), newStatus(newStatus), executedTask(executedTask),
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executedImpl(executedImpl), deviceSlotCount(deviceSlotCount) {}
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wfr::wfs::ActivityImplementationType getDeviceType() const noexcept { return deviceType; }
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wfr::wfs::Workflow* getWorkflow() const noexcept { return workflow; }
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wfr_id_t getDeviceID() const noexcept { return deviceID; }
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wfr::wfs::ComputingResourceStatus getNewStatus() const noexcept { return newStatus; }
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wfr::wfs::ComputingResourceStatus getOldStatus() const noexcept { return oldStatus; }
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wfr::wfs::ActivityInstance* getExecutedTask() const noexcept { return executedTask; }
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wfr::wfs::AtomicActivityImplementation* getExecutedImpl() const noexcept { return executedImpl; }
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wfr_size_t getDeviceSlotCount() const noexcept { return deviceSlotCount; }
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virtual std::string toString() const noexcept override;
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static std::shared_ptr<ComputingResourceStatusEvent> fireEvent( wfr::wfs::Workflow* wf,
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wfr::wfs::ActivityImplementationType deviceType,
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wfr_id_t deviceID,
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wfr::wfs::ComputingResourceStatus oldStatus,
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wfr::wfs::ComputingResourceStatus newStatus,
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wfr::wfs::ActivityInstance* executedTask = nullptr,
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wfr::wfs::AtomicActivityImplementation* executedImpl = nullptr,
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wfr_size_t deviceSlotCount = 0,
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wfr_timestamp_sc_t timestamp = std::chrono::system_clock::now(),
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bool noLocking = false ) noexcept;
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};
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} /* namespace eventsystem */
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} /* namespace wfr */
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