Initial moving of product listing to the background for level 3

This commit is contained in:
Dan Paulat 2025-08-30 16:27:55 -05:00
parent 68f66c0c2f
commit f4226b487d
14 changed files with 356 additions and 178 deletions

View file

@ -289,11 +289,18 @@ AwsLevel2ChunksDataProvider::FindLatestTime()
std::vector<std::chrono::system_clock::time_point>
AwsLevel2ChunksDataProvider::GetTimePointsByDate(
std::chrono::system_clock::time_point /*date*/)
std::chrono::system_clock::time_point /* date */, bool /* update */)
{
return {};
}
bool AwsLevel2ChunksDataProvider::IsDateCached(
std::chrono::system_clock::time_point /* date */)
{
// No cache, default to true
return true;
}
std::chrono::system_clock::time_point
AwsLevel2ChunksDataProvider::Impl::GetScanTime(const std::string& prefix)
{

View file

@ -15,9 +15,7 @@
#include <aws/s3/model/ListObjectsV2Request.h>
#include <fmt/chrono.h>
namespace scwx
{
namespace provider
namespace scwx::provider
{
static const std::string logPrefix_ =
@ -177,7 +175,7 @@ std::chrono::system_clock::time_point AwsNexradDataProvider::FindLatestTime()
std::vector<std::chrono::system_clock::time_point>
AwsNexradDataProvider::GetTimePointsByDate(
std::chrono::system_clock::time_point date)
std::chrono::system_clock::time_point date, bool update)
{
const auto day = std::chrono::floor<std::chrono::days>(date);
@ -188,23 +186,26 @@ AwsNexradDataProvider::GetTimePointsByDate(
std::shared_lock lock(p->objectsMutex_);
// Is the date present in the date list?
bool currentDatePresent;
bool currentDatePresent = false;
auto currentDateIterator =
std::find(p->objectDates_.cbegin(), p->objectDates_.cend(), day);
if (currentDateIterator == p->objectDates_.cend())
{
// Temporarily unlock mutex
lock.unlock();
// List objects, since the date is not present in the date list
auto [success, newObjects, totalObjects] = ListObjects(date);
if (success)
if (update)
{
p->UpdateObjectDates(date);
}
// Temporarily unlock mutex
lock.unlock();
// Re-lock mutex
lock.lock();
// List objects, since the date is not present in the date list
const auto [success, newObjects, totalObjects] = ListObjects(date);
if (success)
{
p->UpdateObjectDates(date);
}
// Re-lock mutex
lock.lock();
}
currentDatePresent = false;
}
@ -214,8 +215,8 @@ AwsNexradDataProvider::GetTimePointsByDate(
}
// Determine objects to retrieve
auto objectsBegin = p->objects_.lower_bound(day);
auto objectsEnd = p->objects_.lower_bound(day + std::chrono::days {1});
const auto objectsBegin = p->objects_.lower_bound(day);
const auto objectsEnd = p->objects_.lower_bound(day + std::chrono::days {1});
// Copy time points to destination vector
std::transform(objectsBegin,
@ -236,6 +237,20 @@ AwsNexradDataProvider::GetTimePointsByDate(
return timePoints;
}
bool AwsNexradDataProvider::IsDateCached(
std::chrono::system_clock::time_point date)
{
const auto day = std::chrono::floor<std::chrono::days>(date);
const std::shared_lock lock(p->objectsMutex_);
// Is the date present in the date list?
const auto currentDateIterator =
std::find(p->objectDates_.cbegin(), p->objectDates_.cend(), day);
return currentDateIterator != p->objectDates_.cend();
}
std::tuple<bool, size_t, size_t>
AwsNexradDataProvider::ListObjects(std::chrono::system_clock::time_point date)
{
@ -446,5 +461,4 @@ void AwsNexradDataProvider::Impl::UpdateObjectDates(
objectDates_.push_back(day);
}
} // namespace provider
} // namespace scwx
} // namespace scwx::provider