mirror of
https://github.com/ciphervance/supercell-wx.git
synced 2025-10-30 14:10:06 +00:00
working level2 chunks with auto rerendering
This commit is contained in:
AdenKoperczak
parent
7c99bbc185
commit
fc83a7a36f
3 changed files with 232 additions and 125 deletions
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@ -53,6 +53,7 @@ public:
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std::shared_ptr<wsr88d::Ar2vFile> nexradFile_;
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std::chrono::system_clock::time_point time_;
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std::chrono::system_clock::time_point lastModified_;
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std::chrono::system_clock::time_point secondLastModified_;
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std::string lastKey_;
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int nextFile_ {1};
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bool hasAllFiles_ {false};
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@ -70,7 +71,8 @@ public:
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lastScan_ {"", false},
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currentScan_ {"", false},
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scansMutex_ {},
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updatePeriod_ {15},
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lastTimeListed_ {},
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updatePeriod_ {7},
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self_ {self}
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{
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// Disable HTTP request for region
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@ -96,11 +98,14 @@ public:
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Impl& operator=(Impl&&) = delete;
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std::chrono::system_clock::time_point GetScanTime(const std::string& prefix);
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std::string GetScanKey(const std::string& prefix,
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const std::chrono::system_clock::time_point& time,
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int last);
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std::shared_ptr<wsr88d::NexradFile> LoadScan(Impl::ScanRecord& scanRecord);
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int GetScanNumber(const std::string& prefix);
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int GetScanNumber(const std::string& prefix);
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std::string GetScanKey(const std::string& prefix,
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const std::chrono::system_clock::time_point& time,
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int last);
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bool LoadScan(Impl::ScanRecord& scanRecord);
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std::tuple<bool, size_t, size_t> ListObjects();
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std::string radarSite_;
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std::string bucketName_;
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@ -110,10 +115,11 @@ public:
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std::mutex refreshMutex_;
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std::unordered_map<std::string, std::chrono::system_clock::time_point>
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scanTimes_;
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ScanRecord lastScan_;
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ScanRecord currentScan_;
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std::shared_mutex scansMutex_;
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scanTimes_;
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ScanRecord lastScan_;
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ScanRecord currentScan_;
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std::shared_mutex scansMutex_;
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std::chrono::system_clock::time_point lastTimeListed_;
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std::chrono::seconds updatePeriod_;
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@ -187,6 +193,24 @@ AwsLevel2ChunksDataProvider::last_modified() const
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}
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std::chrono::seconds AwsLevel2ChunksDataProvider::update_period() const
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{
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std::shared_lock lock(p->scansMutex_);
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// Add an extra second of delay
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static const auto extra = std::chrono::seconds(1);
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// get update period from time between chunks
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if (p->currentScan_.valid_ && p->currentScan_.nextFile_ > 2)
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{
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auto delta =
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p->currentScan_.lastModified_ - p->currentScan_.secondLastModified_;
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return std::chrono::duration_cast<std::chrono::seconds>(delta) + extra;
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}
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else if (p->lastScan_.valid_ && p->lastScan_.nextFile_ > 2)
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{
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auto delta =
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p->lastScan_.lastModified_ - p->lastScan_.secondLastModified_;
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return std::chrono::duration_cast<std::chrono::seconds>(delta) + extra;
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}
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// default to a set update period
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return p->updatePeriod_;
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}
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@ -241,10 +265,16 @@ AwsLevel2ChunksDataProvider::GetTimePointsByDate(
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std::chrono::system_clock::time_point
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AwsLevel2ChunksDataProvider::Impl::GetScanTime(const std::string& prefix)
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{
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using namespace std::chrono;
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const auto& scanTimeIt = scanTimes_.find(prefix); // O(log(n))
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if (scanTimeIt != scanTimes_.cend())
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{
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return scanTimeIt->second;
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// If the time is greater than 2 hours ago, it may be a new scan
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auto replaceBy = system_clock::now() - hours {2};
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if (scanTimeIt->second > replaceBy)
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{
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return scanTimeIt->second;
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}
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}
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Aws::S3::Model::ListObjectsV2Request request;
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@ -258,6 +288,7 @@ AwsLevel2ChunksDataProvider::Impl::GetScanTime(const std::string& prefix)
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{
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auto timePoint = self_->GetTimePointByKey(
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outcome.GetResult().GetContents().at(0).GetKey());
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scanTimes_.insert_or_assign(prefix, timePoint);
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return timePoint;
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}
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@ -277,6 +308,135 @@ std::string AwsLevel2ChunksDataProvider::Impl::GetScanKey(
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"{0}/{1:%Y%m%d-%H%M%S}-{2}", prefix, fmt::gmtime(time), last - 1);
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}
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std::tuple<bool, size_t, size_t>
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AwsLevel2ChunksDataProvider::Impl::ListObjects()
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{
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size_t newObjects = 0;
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size_t totalObjects = 0;
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std::chrono::system_clock::time_point now = std::chrono::system_clock::now();
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if (currentScan_.valid_ && !currentScan_.hasAllFiles_ &&
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lastTimeListed_ + std::chrono::minutes(7) > now)
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{
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return {true, newObjects, totalObjects};
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}
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logger_->debug("ListObjects");
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lastTimeListed_ = now;
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const std::string prefix = radarSite_ + "/";
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Aws::S3::Model::ListObjectsV2Request request;
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request.SetBucket(bucketName_);
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request.SetPrefix(prefix);
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request.SetDelimiter("/");
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auto outcome = client_->ListObjectsV2(request);
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if (outcome.IsSuccess())
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{
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auto& scans = outcome.GetResult().GetCommonPrefixes();
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logger_->debug("Found {} scans", scans.size());
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if (scans.size() > 0)
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{
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// find latest scan
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auto scanNumberMap = std::map<int, std::string>();
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for (auto& scan : scans) // O(n log(n)) n <= 999
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{
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const std::string& scanPrefix = scan.GetPrefix();
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scanNumberMap.insert_or_assign(GetScanNumber(scanPrefix),
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scanPrefix);
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}
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// TODO ensure not out of range
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int lastScanNumber = -1;
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// Start with last scan
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int previousScanNumber = scanNumberMap.crbegin()->first;
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const int firstScanNumber = scanNumberMap.cbegin()->first;
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// This indicates that highest number scan is the last scan
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// NOLINTNEXTLINE(cppcoreguidelines-avoid-magic-numbers)
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if (previousScanNumber != 999 || firstScanNumber != 1)
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{
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lastScanNumber = previousScanNumber;
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}
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else
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{
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// have already checked scan with highest number, so skip first
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previousScanNumber = firstScanNumber;
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bool first = true;
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for (const auto& scan : scanNumberMap)
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{
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if (first)
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{
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first = false;
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continue;
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}
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if (scan.first != previousScanNumber + 1)
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{
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lastScanNumber = previousScanNumber;
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break;
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}
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previousScanNumber = scan.first;
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}
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}
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if (lastScanNumber == -1)
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{
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logger_->warn("Could not find last scan");
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// TODO make sure this makes sence
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return {false, 0, 0};
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}
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std::string& lastScanPrefix = scanNumberMap.at(lastScanNumber);
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int secondLastScanNumber =
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lastScanNumber == 1 ? 999 : lastScanNumber - 1;
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const auto& secondLastScanPrefix =
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scanNumberMap.find(secondLastScanNumber);
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if (!currentScan_.valid_ ||
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currentScan_.prefix_ != lastScanPrefix)
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{
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if (currentScan_.valid_ &&
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(secondLastScanPrefix == scanNumberMap.cend() ||
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currentScan_.prefix_ == secondLastScanPrefix->second))
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{
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lastScan_ = currentScan_;
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}
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else if (secondLastScanPrefix != scanNumberMap.cend())
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{
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lastScan_.valid_ = true;
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lastScan_.prefix_ = secondLastScanPrefix->second;
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lastScan_.nexradFile_ = nullptr;
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lastScan_.time_ = GetScanTime(secondLastScanPrefix->second);
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lastScan_.lastModified_ = {};
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lastScan_.secondLastModified_ = {};
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lastScan_.lastKey_ = "";
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lastScan_.nextFile_ = 1;
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lastScan_.hasAllFiles_ = false;
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newObjects += 1;
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}
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currentScan_.valid_ = true;
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currentScan_.prefix_ = lastScanPrefix;
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currentScan_.nexradFile_ = nullptr;
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currentScan_.time_ = GetScanTime(lastScanPrefix);
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currentScan_.lastModified_ = {};
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currentScan_.secondLastModified_ = {};
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currentScan_.lastKey_ = "";
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currentScan_.nextFile_ = 1;
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currentScan_.hasAllFiles_ = false;
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newObjects += 1;
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}
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}
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}
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return {true, newObjects, totalObjects};
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}
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std::tuple<bool, size_t, size_t>
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AwsLevel2ChunksDataProvider::ListObjects(std::chrono::system_clock::time_point)
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{
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@ -289,16 +449,16 @@ AwsLevel2ChunksDataProvider::LoadObjectByKey(const std::string& /*prefix*/)
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return nullptr;
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}
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std::shared_ptr<wsr88d::NexradFile>
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AwsLevel2ChunksDataProvider::Impl::LoadScan(Impl::ScanRecord& scanRecord)
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bool AwsLevel2ChunksDataProvider::Impl::LoadScan(Impl::ScanRecord& scanRecord)
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{
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if (!scanRecord.valid_)
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{
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return nullptr;
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logger_->warn("Tried to load scan which was not listed yet");
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return false;
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}
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else if (scanRecord.hasAllFiles_)
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{
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return scanRecord.nexradFile_;
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return false;
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}
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Aws::S3::Model::ListObjectsV2Request listRequest;
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@ -314,19 +474,23 @@ AwsLevel2ChunksDataProvider::Impl::LoadScan(Impl::ScanRecord& scanRecord)
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if (!listOutcome.IsSuccess())
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{
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logger_->warn("Could not find scan at {}", scanRecord.prefix_);
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return nullptr;
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return false;
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}
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bool hasNew = false;
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auto& chunks = listOutcome.GetResult().GetContents();
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for (const auto& chunk : chunks)
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{
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const std::string& key = chunk.GetKey();
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// TODO this is wrong, 1st number can be 1-3 digits
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// We just want the number of this chunk for now
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// KIND/585/20250324-134727-001-S
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static const size_t startNumberPos =
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std::string("KIND/585/20250324-134727-").size();
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// KIND/5/20250324-134727-001-S
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static const size_t firstSlash = std::string("KIND/").size();
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const size_t secondSlash = key.find('/', firstSlash);
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static const size_t startNumberPosOffset =
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std::string("/20250324-134727-").size();
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const size_t startNumberPos =
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secondSlash + startNumberPosOffset;
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const std::string& keyNumberStr = key.substr(startNumberPos, 3);
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const int keyNumber = std::stoi(keyNumberStr);
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if (keyNumber != scanRecord.nextFile_)
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@ -334,12 +498,11 @@ AwsLevel2ChunksDataProvider::Impl::LoadScan(Impl::ScanRecord& scanRecord)
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continue;
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}
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// TODO this is wrong, 1st number can be 1-3 digits
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// Now we want the ending char
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// KIND/585/20250324-134727-001-S
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static const size_t charPos =
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std::string("KIND/585/20250324-134727-001-").size();
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const char keyChar = key[charPos];
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std::string("/20250324-134727-001-").size();
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const char keyChar = key[secondSlash + charPos];
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Aws::S3::Model::GetObjectRequest objectRequest;
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objectRequest.SetBucket(bucketName_);
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@ -351,7 +514,7 @@ AwsLevel2ChunksDataProvider::Impl::LoadScan(Impl::ScanRecord& scanRecord)
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{
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logger_->warn("Could not get object: {}",
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outcome.GetError().GetMessage());
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return nullptr;
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return hasNew;
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}
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auto& body = outcome.GetResultWithOwnership().GetBody();
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@ -364,7 +527,7 @@ AwsLevel2ChunksDataProvider::Impl::LoadScan(Impl::ScanRecord& scanRecord)
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if (!scanRecord.nexradFile_->LoadData(body))
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{
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logger_->warn("Failed to load first chunk");
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return nullptr;
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return hasNew;
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}
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break;
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}
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@ -373,7 +536,7 @@ AwsLevel2ChunksDataProvider::Impl::LoadScan(Impl::ScanRecord& scanRecord)
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if (!scanRecord.nexradFile_->LoadLDMRecords(body))
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{
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logger_->warn("Failed to load middle chunk");
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return nullptr;
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return hasNew;
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}
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break;
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}
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@ -382,31 +545,38 @@ AwsLevel2ChunksDataProvider::Impl::LoadScan(Impl::ScanRecord& scanRecord)
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if (!scanRecord.nexradFile_->LoadLDMRecords(body))
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{
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logger_->warn("Failed to load last chunk");
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return nullptr;
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return hasNew;
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}
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scanRecord.hasAllFiles_ = true;
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break;
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}
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default:
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return nullptr;
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logger_->warn("Could not load chunk with unknown char");
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return hasNew;
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}
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hasNew = true;
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std::chrono::seconds lastModifiedSeconds {
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outcome.GetResult().GetLastModified().Seconds()};
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std::chrono::system_clock::time_point lastModified {lastModifiedSeconds};
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scanRecord.secondLastModified_ = scanRecord.lastModified_;
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scanRecord.lastModified_ = lastModified;
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scanRecord.nextFile_ += 1;
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scanRecord.lastKey_ = key;
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}
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if (scanRecord.nexradFile_ != nullptr)
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if (scanRecord.nexradFile_ == nullptr)
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{
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logger_->warn("Could not load file");
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}
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else
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{
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scanRecord.nexradFile_->IndexFile();
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}
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return scanRecord.nexradFile_;
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return hasNew;
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}
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std::shared_ptr<wsr88d::NexradFile>
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@ -417,14 +587,15 @@ AwsLevel2ChunksDataProvider::LoadObjectByTime(
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if (p->currentScan_.valid_ && time >= p->currentScan_.time_)
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{
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return p->LoadScan(p->currentScan_);
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return p->currentScan_.nexradFile_;
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}
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else if (p->lastScan_.valid_ && time >= p->lastScan_.time_)
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{
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return p->LoadScan(p->lastScan_);
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return p->lastScan_.nexradFile_;
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}
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else
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{
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logger_->warn("Could not find scan with time");
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return nullptr;
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}
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}
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@ -440,8 +611,8 @@ int AwsLevel2ChunksDataProvider::Impl::GetScanNumber(const std::string& prefix)
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// We just want the number of this chunk for now
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// KIND/585/20250324-134727-001-S
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static const size_t startNumberPos = std::string("KIND/").size();
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const std::string& prefixNumberStr = prefix.substr(startNumberPos, 3);
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static const size_t firstSlash = std::string("KIND/").size();
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const std::string& prefixNumberStr = prefix.substr(firstSlash, 3);
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return std::stoi(prefixNumberStr);
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}
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@ -449,106 +620,35 @@ std::pair<size_t, size_t> AwsLevel2ChunksDataProvider::Refresh()
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{
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using namespace std::chrono;
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boost::timer::cpu_timer timer {};
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timer.start();
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std::unique_lock lock(p->refreshMutex_);
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std::unique_lock scanLock(p->scansMutex_);
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size_t newObjects = 0;
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size_t totalObjects = 0;
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const std::string prefix = p->radarSite_ + "/";
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Aws::S3::Model::ListObjectsV2Request request;
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request.SetBucket(p->bucketName_);
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request.SetPrefix(prefix);
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request.SetDelimiter("/");
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auto outcome = p->client_->ListObjectsV2(request);
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if (outcome.IsSuccess())
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{
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auto& scans = outcome.GetResult().GetCommonPrefixes();
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logger_->debug("Found {} scans", scans.size());
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boost::timer::cpu_timer timer {};
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timer.start();
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if (scans.size() > 0)
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{
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// TODO this cannot be done by getting things form the network.
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// Use index number instead.
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// find latest scan
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std::chrono::system_clock::time_point latestTime = {};
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std::chrono::system_clock::time_point secondLatestTime = {};
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size_t latestIndex = 0;
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size_t secondLatestIndex = 0;
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for (size_t i = 0; i < scans.size(); i++) // O(n log(n)) n <= 999
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{
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auto time = p->GetScanTime(scans[i].GetPrefix());
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if (time > latestTime)
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{
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secondLatestTime = latestTime;
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latestTime = time;
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secondLatestIndex = latestIndex;
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latestIndex = i;
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}
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}
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const auto& last = scans.at(secondLatestIndex).GetPrefix();
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if (secondLatestTime != std::chrono::system_clock::time_point {})
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{
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p->lastScan_ = p->currentScan_;
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}
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else if (!p->lastScan_.valid_ || p->lastScan_.prefix_ != last)
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{
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p->lastScan_.valid_ = true;
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p->lastScan_.prefix_ = last;
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p->lastScan_.nexradFile_ = nullptr;
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||||
p->lastScan_.time_ = secondLatestTime;
|
||||
p->lastScan_.lastModified_ = {};
|
||||
p->lastScan_.lastKey_ = "";
|
||||
p->lastScan_.nextFile_ = 1;
|
||||
p->lastScan_.hasAllFiles_ = false;
|
||||
newObjects += 1;
|
||||
}
|
||||
|
||||
const auto& current = scans.at(latestIndex).GetPrefix();
|
||||
if (!p->currentScan_.valid_ || p->currentScan_.prefix_ != current)
|
||||
{
|
||||
p->currentScan_.valid_ = true;
|
||||
p->currentScan_.prefix_ = current;
|
||||
p->currentScan_.nexradFile_ = nullptr;
|
||||
p->currentScan_.time_ = latestTime;
|
||||
p->currentScan_.lastModified_ = {};
|
||||
p->currentScan_.lastKey_ = "";
|
||||
p->currentScan_.nextFile_ = 1;
|
||||
p->currentScan_.hasAllFiles_ = false;
|
||||
newObjects += 1;
|
||||
}
|
||||
}
|
||||
|
||||
timer.stop();
|
||||
logger_->debug("Updated current scans in {}", timer.format(6, "%ws"));
|
||||
}
|
||||
|
||||
logger_->debug("Loading scans");
|
||||
auto [success, newObjects, totalObjects] = p->ListObjects();
|
||||
|
||||
if (p->currentScan_.valid_)
|
||||
{
|
||||
p->LoadScan(p->currentScan_);
|
||||
if (p->LoadScan(p->currentScan_))
|
||||
{
|
||||
newObjects += 1;
|
||||
}
|
||||
totalObjects += 1;
|
||||
}
|
||||
if (p->lastScan_.valid_)
|
||||
{
|
||||
p->LoadScan(p->lastScan_);
|
||||
/*
|
||||
if (p->LoadScan(p->lastScan_))
|
||||
{
|
||||
newObjects += 1;
|
||||
}
|
||||
*/
|
||||
totalObjects += 1;
|
||||
}
|
||||
|
||||
|
||||
timer.stop();
|
||||
logger_->debug("Refresh() in {}", timer.format(6, "%ws"));
|
||||
return std::make_pair(newObjects, totalObjects);
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue