mirror of
https://github.com/ciphervance/supercell-wx.git
synced 2025-10-31 16:00:04 +00:00
763 lines
24 KiB
C++
763 lines
24 KiB
C++
#include <scwx/qt/manager/text_event_manager.hpp>
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#include <scwx/qt/main/application.hpp>
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#include <scwx/qt/settings/general_settings.hpp>
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#include <scwx/awips/text_product_file.hpp>
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#include <scwx/provider/iem_api_provider.ipp>
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#include <scwx/provider/warnings_provider.hpp>
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#include <scwx/util/logger.hpp>
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#include <scwx/util/time.hpp>
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#include <algorithm>
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#include <list>
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#include <map>
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#include <shared_mutex>
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#include <unordered_map>
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#include <boost/asio/post.hpp>
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#include <boost/asio/steady_timer.hpp>
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#include <boost/asio/thread_pool.hpp>
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#include <boost/container/stable_vector.hpp>
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#include <boost/range/irange.hpp>
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#include <range/v3/range/conversion.hpp>
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#include <range/v3/view/filter.hpp>
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#include <range/v3/view/single.hpp>
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#include <range/v3/view/transform.hpp>
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#if (__cpp_lib_chrono < 201907L)
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# include <date/date.h>
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#endif
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namespace scwx::qt::manager
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{
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using namespace std::chrono_literals;
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static const std::string logPrefix_ = "scwx::qt::manager::text_event_manager";
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static const auto logger_ = scwx::util::Logger::Create(logPrefix_);
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static constexpr std::chrono::hours kInitialLoadHistoryDuration_ =
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std::chrono::days {3};
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static constexpr std::chrono::hours kDefaultLoadHistoryDuration_ =
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std::chrono::hours {1};
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static const std::array<std::string, 8> kPils_ = {
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"FFS", "FFW", "MWS", "SMW", "SQW", "SVR", "SVS", "TOR"};
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static const std::
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unordered_map<std::string, std::pair<std::chrono::hours, std::chrono::hours>>
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kPilLoadWindows_ {{"FFS", {-24h, 1h}},
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{"FFW", {-24h, 1h}},
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{"MWS", {-4h, 1h}},
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{"SMW", {-4h, 1h}},
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{"SQW", {-4h, 1h}},
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{"SVR", {-4h, 1h}},
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{"SVS", {-4h, 1h}},
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{"TOR", {-4h, 1h}}};
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// Widest load window provided by kPilLoadWindows_
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static const std::pair<std::chrono::hours, std::chrono::hours>
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kArchiveLoadWindow_ {-24h, 1h};
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class TextEventManager::Impl
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{
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public:
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explicit Impl(TextEventManager* self) :
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self_ {self},
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refreshTimer_ {threadPool_},
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refreshMutex_ {},
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textEventMap_ {},
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textEventMutex_ {}
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{
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auto& generalSettings = settings::GeneralSettings::Instance();
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warningsProvider_ = std::make_shared<provider::WarningsProvider>(
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generalSettings.warnings_provider().GetValue());
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warningsProviderChangedCallbackUuid_ =
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generalSettings.warnings_provider().RegisterValueChangedCallback(
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[this](const std::string& value)
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{
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loadHistoryDuration_ = kInitialLoadHistoryDuration_;
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warningsProvider_ =
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std::make_shared<provider::WarningsProvider>(value);
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});
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boost::asio::post(threadPool_,
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[this]()
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{
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try
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{
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main::Application::WaitForInitialization();
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logger_->debug("Start Refresh");
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Refresh();
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}
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catch (const std::exception& ex)
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{
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logger_->error(ex.what());
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}
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});
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}
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~Impl()
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{
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settings::GeneralSettings::Instance()
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.warnings_provider()
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.UnregisterValueChangedCallback(warningsProviderChangedCallbackUuid_);
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std::unique_lock lock(refreshMutex_);
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refreshTimer_.cancel();
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lock.unlock();
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threadPool_.join();
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}
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Impl(const Impl&) = delete;
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Impl& operator=(const Impl&) = delete;
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Impl(const Impl&&) = delete;
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Impl& operator=(const Impl&&) = delete;
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void HandleMessage(const std::shared_ptr<awips::TextProductMessage>& message,
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bool archiveEvent = false);
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template<ranges::forward_range DateRange>
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requires std::same_as<ranges::range_value_t<DateRange>,
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std::chrono::sys_days>
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void ListArchives(DateRange dates);
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void LoadArchives(std::chrono::system_clock::time_point dateTime);
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void PruneArchives();
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void RefreshAsync();
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void Refresh();
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template<ranges::forward_range DateRange>
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requires std::same_as<ranges::range_value_t<DateRange>,
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std::chrono::sys_days>
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void UpdateArchiveDates(DateRange dates);
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// Thread pool sized for:
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// - Live Refresh (1x)
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// - Archive Loading (1x)
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boost::asio::thread_pool threadPool_ {2u};
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TextEventManager* self_;
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boost::asio::steady_timer refreshTimer_;
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std::mutex refreshMutex_;
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std::unordered_map<types::TextEventKey,
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std::vector<std::shared_ptr<awips::TextProductMessage>>,
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types::TextEventHash<types::TextEventKey>>
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textEventMap_;
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std::shared_mutex textEventMutex_;
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std::shared_ptr<provider::WarningsProvider> warningsProvider_ {nullptr};
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std::chrono::hours loadHistoryDuration_ {kInitialLoadHistoryDuration_};
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std::chrono::sys_time<std::chrono::hours> prevLoadTime_ {};
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std::chrono::sys_days archiveLimit_ {};
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std::mutex archiveMutex_ {};
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std::list<std::chrono::sys_days> archiveDates_ {};
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std::mutex archiveEventKeyMutex_ {};
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std::map<std::chrono::sys_days,
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std::unordered_set<types::TextEventKey,
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types::TextEventHash<types::TextEventKey>>>
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archiveEventKeys_ {};
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std::unordered_set<types::TextEventKey,
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types::TextEventHash<types::TextEventKey>>
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liveEventKeys_ {};
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std::mutex unloadedProductMapMutex_ {};
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std::map<std::chrono::sys_days,
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boost::container::stable_vector<scwx::types::iem::AfosEntry>>
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unloadedProductMap_;
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boost::uuids::uuid warningsProviderChangedCallbackUuid_ {};
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};
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TextEventManager::TextEventManager() : p(std::make_unique<Impl>(this)) {}
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TextEventManager::~TextEventManager() = default;
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size_t TextEventManager::message_count(const types::TextEventKey& key) const
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{
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size_t messageCount = 0u;
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std::shared_lock lock(p->textEventMutex_);
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auto it = p->textEventMap_.find(key);
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if (it != p->textEventMap_.cend())
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{
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messageCount = it->second.size();
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}
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return messageCount;
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}
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std::vector<std::shared_ptr<awips::TextProductMessage>>
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TextEventManager::message_list(const types::TextEventKey& key) const
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{
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std::vector<std::shared_ptr<awips::TextProductMessage>> messageList {};
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std::shared_lock lock(p->textEventMutex_);
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auto it = p->textEventMap_.find(key);
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if (it != p->textEventMap_.cend())
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{
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messageList.assign(it->second.begin(), it->second.end());
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}
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return messageList;
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}
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void TextEventManager::LoadFile(const std::string& filename)
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{
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logger_->debug("LoadFile: {}", filename);
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boost::asio::post(p->threadPool_,
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[=, this]()
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{
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try
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{
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awips::TextProductFile file;
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// Load file
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bool fileLoaded = file.LoadFile(filename);
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if (!fileLoaded)
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{
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return;
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}
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// Process messages
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auto messages = file.messages();
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for (auto& message : messages)
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{
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p->HandleMessage(message);
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}
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}
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catch (const std::exception& ex)
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{
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logger_->error(ex.what());
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}
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});
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}
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void TextEventManager::SelectTime(
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std::chrono::system_clock::time_point dateTime)
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{
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if (dateTime == std::chrono::system_clock::time_point {})
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{
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// Ignore a default date/time selection
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return;
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}
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logger_->trace("Select Time: {}", util::TimeString(dateTime));
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boost::asio::post(
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p->threadPool_,
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[dateTime, this]()
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{
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try
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{
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const auto today = std::chrono::floor<std::chrono::days>(dateTime);
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const auto yesterday = today - std::chrono::days {1};
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const auto tomorrow = today + std::chrono::days {1};
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const auto dateArray = std::array {yesterday, today, tomorrow};
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const auto dates =
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dateArray |
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ranges::views::filter(
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[this](const auto& date)
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{
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return p->archiveLimit_ == std::chrono::sys_days {} ||
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date < p->archiveLimit_;
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});
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const std::unique_lock lock {p->archiveMutex_};
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p->UpdateArchiveDates(dates);
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p->ListArchives(dates);
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p->LoadArchives(dateTime);
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p->PruneArchives();
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}
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catch (const std::exception& ex)
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{
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logger_->error(ex.what());
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}
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});
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}
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void TextEventManager::Impl::HandleMessage(
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const std::shared_ptr<awips::TextProductMessage>& message, bool archiveEvent)
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{
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using namespace std::chrono_literals;
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auto segments = message->segments();
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// If there are no segments, skip this message
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if (segments.empty())
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{
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return;
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}
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for (auto& segment : segments)
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{
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// If a segment has no header, or if there is no VTEC string, skip this
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// message. A segmented message corresponding to a text event should have
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// this information.
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if (!segment->header_.has_value() ||
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segment->header_->vtecString_.empty())
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{
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return;
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}
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}
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// Determine year
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const std::chrono::year_month_day wmoDate =
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std::chrono::floor<std::chrono::days>(
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message->wmo_header()->GetDateTime());
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const std::chrono::year wmoYear = wmoDate.year();
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std::unique_lock lock(textEventMutex_);
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// Find a matching event in the event map
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auto& vtecString = segments[0]->header_->vtecString_;
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types::TextEventKey key {vtecString[0].pVtec_, wmoYear};
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size_t messageIndex = 0;
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auto it = textEventMap_.find(key);
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bool updated = false;
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if (
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// If there was no matching event
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it == textEventMap_.cend() &&
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// The event is not new
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vtecString[0].pVtec_.action() != awips::PVtec::Action::New &&
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// The message was on January 1
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wmoDate.month() == std::chrono::January && wmoDate.day() == 1d &&
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// This is at least the 10th ETN of the year
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// NOLINTNEXTLINE(cppcoreguidelines-avoid-magic-numbers): Readability
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vtecString[0].pVtec_.event_tracking_number() > 10)
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{
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// Attempt to find a matching event from last year
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key = {vtecString[0].pVtec_, wmoYear - std::chrono::years {1}};
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it = textEventMap_.find(key);
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}
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if (it == textEventMap_.cend())
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{
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// If there was no matching event, add the message to a new event
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textEventMap_.emplace(key, std::vector {message});
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messageIndex = 0;
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updated = true;
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if (!archiveEvent)
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{
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// Add the Text Event Key to the list of live events to prevent pruning
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liveEventKeys_.insert(key);
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}
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}
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else if (std::find_if(it->second.cbegin(),
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it->second.cend(),
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[=](auto& storedMessage)
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{
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return *message->wmo_header().get() ==
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*storedMessage->wmo_header().get();
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}) == it->second.cend())
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{
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// If there was a matching event, and this message has not been stored
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// (WMO header equivalence check), add the updated message to the existing
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// event
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// Determine the chronological sequence of the message. Note, if there
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// were no time hints given to the WMO header, this will place the message
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// at the end of the vector.
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auto insertionPoint = std::upper_bound(
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it->second.begin(),
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it->second.end(),
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message,
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[](const std::shared_ptr<awips::TextProductMessage>& a,
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const std::shared_ptr<awips::TextProductMessage>& b)
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{
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return a->wmo_header()->GetDateTime() <
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b->wmo_header()->GetDateTime();
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});
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// Insert the message in chronological order
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messageIndex = std::distance(it->second.begin(), insertionPoint);
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it->second.insert(insertionPoint, message);
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updated = true;
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};
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// If this is an archive event, and the key does not exist in the live events
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// Assumption: A live event will always be loaded before a duplicate archive
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// event
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if (archiveEvent && !liveEventKeys_.contains(key))
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{
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// Add the Text Event Key to the current date's archive
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const std::unique_lock archiveEventKeyLock {archiveEventKeyMutex_};
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auto& archiveKeys = archiveEventKeys_[wmoDate];
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archiveKeys.insert(key);
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}
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lock.unlock();
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if (updated)
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{
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Q_EMIT self_->AlertUpdated(key, messageIndex, message->uuid());
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}
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}
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template<ranges::forward_range DateRange>
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requires std::same_as<ranges::range_value_t<DateRange>,
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std::chrono::sys_days>
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void TextEventManager::Impl::ListArchives(DateRange dates)
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{
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// Don't reload data that has already been loaded
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auto filteredDates =
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dates |
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ranges::views::filter([this](const auto& date)
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{ return !unloadedProductMap_.contains(date); });
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const auto dv = ranges::to<std::vector>(filteredDates);
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std::for_each(
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std::execution::par,
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dv.begin(),
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dv.end(),
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[this](const auto& date)
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{
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static const auto kEmptyRange_ =
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ranges::views::single(std::string_view {});
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static const auto kPilsView_ =
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kPils_ |
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ranges::views::transform([](const std::string& pil)
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{ return std::string_view {pil}; });
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const auto dateArray = std::array {date};
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auto productEntries = provider::IemApiProvider::ListTextProducts(
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dateArray | ranges::views::all, kEmptyRange_, kPilsView_);
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const std::unique_lock lock {unloadedProductMapMutex_};
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if (productEntries.has_value())
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{
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unloadedProductMap_.try_emplace(
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date,
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boost::container::stable_vector<scwx::types::iem::AfosEntry> {
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std::make_move_iterator(productEntries.value().begin()),
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std::make_move_iterator(productEntries.value().end())});
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}
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});
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}
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void TextEventManager::Impl::LoadArchives(
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std::chrono::system_clock::time_point dateTime)
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{
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using namespace std::chrono;
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#if (__cpp_lib_chrono >= 201907L)
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namespace df = std;
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static constexpr std::string_view kDateFormat {"{:%Y%m%d%H%M}"};
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#else
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using namespace date;
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namespace df = date;
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# define kDateFormat "%Y%m%d%H%M"
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#endif
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// Search unloaded products in the widest archive load window
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const std::chrono::sys_days startDate =
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std::chrono::floor<std::chrono::days>(dateTime +
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kArchiveLoadWindow_.first);
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const std::chrono::sys_days endDate = std::chrono::floor<std::chrono::days>(
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dateTime + kArchiveLoadWindow_.second + std::chrono::days {1});
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// Determine load windows for each PIL
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std::unordered_map<std::string, std::pair<std::string, std::string>>
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pilLoadWindowStrings;
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for (auto& loadWindow : kPilLoadWindows_)
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{
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const std::string& pil = loadWindow.first;
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pilLoadWindowStrings.insert_or_assign(
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pil,
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std::pair<std::string, std::string> {
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df::format(kDateFormat, (dateTime + loadWindow.second.first)),
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df::format(kDateFormat, (dateTime + loadWindow.second.second))});
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}
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std::vector<scwx::types::iem::AfosEntry> loadListEntries {};
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for (auto date : boost::irange(startDate, endDate))
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{
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auto mapIt = unloadedProductMap_.find(date);
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if (mapIt == unloadedProductMap_.cend())
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{
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continue;
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}
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for (auto it = mapIt->second.begin(); it != mapIt->second.end();)
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{
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const auto& pil = it->pil_;
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// Check PIL
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if (pil.size() >= 3)
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{
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auto pilPrefix = pil.substr(0, 3);
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auto windowIt = pilLoadWindowStrings.find(pilPrefix);
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// Check Window
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if (windowIt != pilLoadWindowStrings.cend())
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{
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const auto& productId = it->productId_;
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const auto& windowStart = windowIt->second.first;
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const auto& windowEnd = windowIt->second.second;
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if (windowStart <= productId && productId <= windowEnd)
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{
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// Product matches, move it to the load list
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loadListEntries.emplace_back(std::move(*it));
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it = mapIt->second.erase(it);
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continue;
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}
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}
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}
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// Current iterator was not matched
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++it;
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}
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}
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std::vector<std::shared_ptr<awips::TextProductFile>> products {};
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// Load the load list
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if (!loadListEntries.empty())
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{
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auto loadView = loadListEntries |
|
|
ranges::views::transform([](const auto& entry)
|
|
{ return entry.productId_; });
|
|
products = provider::IemApiProvider::LoadTextProducts(loadView);
|
|
}
|
|
|
|
// Process loaded products
|
|
for (auto& product : products)
|
|
{
|
|
const auto& messages = product->messages();
|
|
|
|
for (auto& message : messages)
|
|
{
|
|
HandleMessage(message, true);
|
|
}
|
|
}
|
|
}
|
|
|
|
void TextEventManager::Impl::PruneArchives()
|
|
{
|
|
static constexpr std::size_t kMaxArchiveDates_ = 5;
|
|
|
|
std::unordered_set<types::TextEventKey,
|
|
types::TextEventHash<types::TextEventKey>>
|
|
eventKeysToKeep {};
|
|
std::unordered_set<types::TextEventKey,
|
|
types::TextEventHash<types::TextEventKey>>
|
|
eventKeysToPrune {};
|
|
|
|
// Remove oldest dates from the archive
|
|
while (archiveDates_.size() > kMaxArchiveDates_)
|
|
{
|
|
archiveDates_.pop_front();
|
|
}
|
|
|
|
const std::unique_lock archiveEventKeyLock {archiveEventKeyMutex_};
|
|
|
|
// If there are the same number of dates in archiveEventKeys_, archiveDates_
|
|
// and unloadedProductMap_, there is nothing to prune
|
|
if (archiveEventKeys_.size() == archiveDates_.size() &&
|
|
unloadedProductMap_.size() == archiveDates_.size())
|
|
{
|
|
// Nothing to prune
|
|
return;
|
|
}
|
|
|
|
const std::unique_lock unloadedProductMapLock {unloadedProductMapMutex_};
|
|
|
|
for (auto it = archiveEventKeys_.begin(); it != archiveEventKeys_.end();)
|
|
{
|
|
const auto& date = it->first;
|
|
const auto& eventKeys = it->second;
|
|
|
|
// If date is not in recent days map
|
|
if (std::find(archiveDates_.cbegin(), archiveDates_.cend(), date) ==
|
|
archiveDates_.cend())
|
|
{
|
|
// Prune these keys (unless they are in the eventKeysToKeep set)
|
|
eventKeysToPrune.insert(eventKeys.begin(), eventKeys.end());
|
|
|
|
// The date is not in the list of recent dates, remove it
|
|
it = archiveEventKeys_.erase(it);
|
|
}
|
|
else
|
|
{
|
|
// Make sure these keys don't get pruned
|
|
eventKeysToKeep.insert(eventKeys.begin(), eventKeys.end());
|
|
|
|
// The date is recent, keep it
|
|
++it;
|
|
}
|
|
}
|
|
|
|
for (auto it = unloadedProductMap_.begin(); it != unloadedProductMap_.end();)
|
|
{
|
|
const auto& date = it->first;
|
|
|
|
// If date is not in recent days map
|
|
if (std::find(archiveDates_.cbegin(), archiveDates_.cend(), date) ==
|
|
archiveDates_.cend())
|
|
{
|
|
// The date is not in the list of recent dates, remove it
|
|
it = unloadedProductMap_.erase(it);
|
|
}
|
|
else
|
|
{
|
|
// The date is recent, keep it
|
|
++it;
|
|
}
|
|
}
|
|
|
|
// Remove elements from eventKeysToPrune if they are in eventKeysToKeep
|
|
for (const auto& eventKey : eventKeysToKeep)
|
|
{
|
|
eventKeysToPrune.erase(eventKey);
|
|
}
|
|
|
|
// Remove eventKeysToPrune from textEventMap
|
|
for (const auto& eventKey : eventKeysToPrune)
|
|
{
|
|
textEventMap_.erase(eventKey);
|
|
}
|
|
|
|
// If event keys were pruned, emit a signal
|
|
if (!eventKeysToPrune.empty())
|
|
{
|
|
logger_->debug("Pruned {} archive events", eventKeysToPrune.size());
|
|
|
|
Q_EMIT self_->AlertsRemoved(eventKeysToPrune);
|
|
}
|
|
}
|
|
|
|
void TextEventManager::Impl::RefreshAsync()
|
|
{
|
|
boost::asio::post(threadPool_,
|
|
[this]()
|
|
{
|
|
try
|
|
{
|
|
Refresh();
|
|
}
|
|
catch (const std::exception& ex)
|
|
{
|
|
logger_->error(ex.what());
|
|
}
|
|
});
|
|
}
|
|
|
|
void TextEventManager::Impl::Refresh()
|
|
{
|
|
logger_->trace("Refresh");
|
|
|
|
// Take a unique lock before refreshing
|
|
std::unique_lock lock(refreshMutex_);
|
|
|
|
// Take a copy of the current warnings provider to protect against change
|
|
std::shared_ptr<provider::WarningsProvider> warningsProvider =
|
|
warningsProvider_;
|
|
|
|
// Load updated files from the warnings provider
|
|
// Start time should default to:
|
|
// - 3 days of history for the first load
|
|
// - 1 hour of history for subsequent loads
|
|
// If the time jumps, we should attempt to load from no later than the
|
|
// previous load time
|
|
auto loadTime =
|
|
std::chrono::floor<std::chrono::hours>(std::chrono::system_clock::now());
|
|
auto startTime = loadTime - loadHistoryDuration_;
|
|
|
|
if (prevLoadTime_ != std::chrono::sys_time<std::chrono::hours> {})
|
|
{
|
|
startTime = std::min(startTime, prevLoadTime_);
|
|
}
|
|
|
|
if (archiveLimit_ == std::chrono::sys_days {})
|
|
{
|
|
archiveLimit_ = std::chrono::ceil<std::chrono::days>(startTime);
|
|
}
|
|
|
|
auto updatedFiles = warningsProvider->LoadUpdatedFiles(startTime);
|
|
|
|
// Store the load time and reset the load history duration
|
|
prevLoadTime_ = loadTime;
|
|
loadHistoryDuration_ = kDefaultLoadHistoryDuration_;
|
|
|
|
// Handle messages
|
|
for (auto& file : updatedFiles)
|
|
{
|
|
for (auto& message : file->messages())
|
|
{
|
|
HandleMessage(message);
|
|
}
|
|
}
|
|
|
|
// Schedule another update in 15 seconds
|
|
using namespace std::chrono;
|
|
refreshTimer_.expires_after(15s);
|
|
refreshTimer_.async_wait(
|
|
[this](const boost::system::error_code& e)
|
|
{
|
|
if (e == boost::asio::error::operation_aborted)
|
|
{
|
|
logger_->debug("Refresh timer cancelled");
|
|
}
|
|
else if (e != boost::system::errc::success)
|
|
{
|
|
logger_->warn("Refresh timer error: {}", e.message());
|
|
}
|
|
else
|
|
{
|
|
RefreshAsync();
|
|
}
|
|
});
|
|
}
|
|
|
|
template<ranges::forward_range DateRange>
|
|
requires std::same_as<ranges::range_value_t<DateRange>,
|
|
std::chrono::sys_days>
|
|
void TextEventManager::Impl::UpdateArchiveDates(DateRange dates)
|
|
{
|
|
for (const auto& date : dates)
|
|
{
|
|
// Remove any existing occurrences of day, and add to the back of the list
|
|
archiveDates_.remove(date);
|
|
archiveDates_.push_back(date);
|
|
}
|
|
}
|
|
|
|
std::shared_ptr<TextEventManager> TextEventManager::Instance()
|
|
{
|
|
static std::weak_ptr<TextEventManager> textEventManagerReference_ {};
|
|
static std::mutex instanceMutex_ {};
|
|
|
|
std::unique_lock lock(instanceMutex_);
|
|
|
|
std::shared_ptr<TextEventManager> textEventManager =
|
|
textEventManagerReference_.lock();
|
|
|
|
if (textEventManager == nullptr)
|
|
{
|
|
textEventManager = std::make_shared<TextEventManager>();
|
|
textEventManagerReference_ = textEventManager;
|
|
}
|
|
|
|
return textEventManager;
|
|
}
|
|
|
|
} // namespace scwx::qt::manager
|