mirror of
https://github.com/ciphervance/supercell-wx.git
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109 lines
2.9 KiB
C++
109 lines
2.9 KiB
C++
#include <scwx/provider/aws_level2_data_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 <fmt/chrono.h>
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#include <fmt/format.h>
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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
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{
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namespace provider
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{
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static const std::string logPrefix_ =
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"scwx::provider::aws_level2_data_provider";
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static const auto logger_ = util::Logger::Create(logPrefix_);
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static const std::string kDefaultBucketName_ = "noaa-nexrad-level2";
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static const std::string kDefaultRegion_ = "us-east-1";
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class AwsLevel2DataProvider::Impl
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{
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public:
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explicit Impl(const std::string& radarSite) : radarSite_ {radarSite} {}
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~Impl() {}
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std::string radarSite_;
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};
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AwsLevel2DataProvider::AwsLevel2DataProvider(const std::string& radarSite) :
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AwsLevel2DataProvider(radarSite, kDefaultBucketName_, kDefaultRegion_)
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{
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}
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AwsLevel2DataProvider::AwsLevel2DataProvider(const std::string& radarSite,
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const std::string& bucketName,
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const std::string& region) :
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AwsNexradDataProvider(radarSite, bucketName, region),
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p(std::make_unique<Impl>(radarSite))
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{
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}
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AwsLevel2DataProvider::~AwsLevel2DataProvider() = default;
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AwsLevel2DataProvider::AwsLevel2DataProvider(AwsLevel2DataProvider&&) noexcept =
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default;
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AwsLevel2DataProvider&
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AwsLevel2DataProvider::operator=(AwsLevel2DataProvider&&) noexcept = default;
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std::string
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AwsLevel2DataProvider::GetPrefix(std::chrono::system_clock::time_point date)
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{
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if (date < std::chrono::system_clock::time_point {})
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{
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date = std::chrono::system_clock::time_point {};
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}
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return fmt::format("{0:%Y/%m/%d}/{1}/", fmt::gmtime(date), p->radarSite_);
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}
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std::chrono::system_clock::time_point
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AwsLevel2DataProvider::GetTimePointByKey(const std::string& key) const
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{
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return GetTimePointFromKey(key);
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}
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std::chrono::system_clock::time_point
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AwsLevel2DataProvider::GetTimePointFromKey(const std::string& key)
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{
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std::chrono::system_clock::time_point time {};
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const size_t lastSeparator = key.rfind('/');
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const size_t offset =
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(lastSeparator == std::string::npos) ? 0 : lastSeparator + 5;
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// Filename format is GGGGYYYYMMDD_TTTTTT(_V##).gz
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static const size_t formatSize = std::string("YYYYMMDD_TTTTTT").size();
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if (key.size() >= offset + formatSize)
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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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using namespace date;
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#endif
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static const std::string timeFormat {"%Y%m%d_%H%M%S"};
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std::string timeStr {key.substr(offset, formatSize)};
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std::istringstream in {timeStr};
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in >> parse(timeFormat, time);
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if (in.fail())
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{
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logger_->warn("Invalid time: \"{}\"", timeStr);
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}
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}
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else
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{
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logger_->warn("Time not parsable from key: \"{}\"", key);
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}
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return time;
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}
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} // namespace provider
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} // namespace scwx
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