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Ref T786, weather manager

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* adjusted to new requestWeatherGrid
* use fetchNextWeatherDataDeferred to make sure follow up calls are decoupled
* for callbacks use weatherRequest.callback.singleShot so it is called in correct thread
This commit is contained in:
Klaus Basan
2020-04-19 02:25:25 +02:00
committed by Mat Sutcliffe
parent cc77183b05
commit 7304013eea
2 changed files with 53 additions and 23 deletions
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54
src/blackcore/weathermanager.cpp
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@@ -8,6 +8,7 @@
#include "blackcore/weatherdata.h"
#include "blackcore/weathermanager.h"
#include "blackcore/application.h"
#include "blackmisc/weather/gridpoint.h"
#include "blackmisc/weather/weatherdataplugininfo.h"
@@ -40,16 +41,22 @@ namespace BlackCore
// todo: send weather grid to drivers from here
}
void CWeatherManager::requestWeatherGrid(const CWeatherGrid &weatherGrid, const CIdentifier &identifier)
void CWeatherManager::requestWeatherGrid(const ICoordinateGeodetic &position, const CIdentifier &identifier)
{
WeatherRequest request { {}, identifier, weatherGrid, {} };
const CWeatherGrid weatherGrid = CWeatherGrid { { "GLOB", position } };
this->requestWeatherGrid(weatherGrid, identifier);
}
void CWeatherManager::requestWeatherGrid(const CWeatherGrid &initialWeatherGrid, const CIdentifier &identifier)
{
const WeatherRequest request { {}, identifier, initialWeatherGrid, {} };
m_pendingRequests.append(request);
// Serialize the requests, since plugins can handle only one at a time
if (m_pendingRequests.size() == 1) { fetchNextWeatherData(); }
if (m_pendingRequests.size() == 1) { fetchNextWeatherDataDeferred(); }
}
void CWeatherManager::requestWeatherGrid(const CWeatherGrid &weatherGrid,
void CWeatherManager::requestWeatherGrid(const CWeatherGrid &initialWeatherGrid,
const CSlot<void(const CWeatherGrid &)> &callback)
{
BLACK_VERIFY_X(callback, Q_FUNC_INFO, "Missing callback");
@@ -61,14 +68,14 @@ namespace BlackCore
return;
}
const WeatherRequest weatherRequest { {}, CIdentifier::null(), weatherGrid, callback };
const WeatherRequest weatherRequest { {}, CIdentifier::null(), initialWeatherGrid, callback };
m_pendingRequests.append(weatherRequest);
// Serialize the requests, since plugins can handle only one at a time
if (m_pendingRequests.size() == 1) { fetchNextWeatherData(); }
if (m_pendingRequests.size() == 1) { fetchNextWeatherDataDeferred(); }
}
void CWeatherManager::requestWeatherGridFromFile(const QString &filePath, const CWeatherGrid &weatherGrid,
void CWeatherManager::requestWeatherGridFromFile(const QString &filePath, const CWeatherGrid &initialWeatherGrid,
const CSlot<void(const CWeatherGrid &)> &callback)
{
if (m_isWeatherClear && callback)
@@ -77,11 +84,11 @@ namespace BlackCore
return;
}
WeatherRequest weatherRequest { filePath, CIdentifier::null(), weatherGrid, callback };
WeatherRequest weatherRequest { filePath, CIdentifier::null(), initialWeatherGrid, callback };
m_pendingRequests.append(weatherRequest);
// Serialize the requests, since plugins can handle only one at a time
if (m_pendingRequests.size() == 1) { fetchNextWeatherData(); }
if (m_pendingRequests.size() == 1) { fetchNextWeatherDataDeferred(); }
}
bool CWeatherManager::loadWeatherDataPlugins()
@@ -123,11 +130,28 @@ namespace BlackCore
for (IWeatherData *plugin : as_const(m_weatherDataPlugins))
{
if (weatherRequest.filePath.isEmpty()) { plugin->fetchWeatherData(weatherRequest.weatherGrid, maxDistance); }
else { plugin->fetchWeatherDataFromFile(weatherRequest.filePath, weatherRequest.weatherGrid, maxDistance); }
if (!plugin) { continue; }
if (weatherRequest.filePath.isEmpty())
{
plugin->fetchWeatherData(weatherRequest.weatherGrid, maxDistance);
}
else
{
plugin->fetchWeatherDataFromFile(weatherRequest.filePath, weatherRequest.weatherGrid, maxDistance);
}
}
}
void CWeatherManager::fetchNextWeatherDataDeferred()
{
QPointer<CWeatherManager> myself(this);
QTimer::singleShot(0, this, [ = ]
{
if (!myself || !sApp || sApp->isShuttingDown()) { return; }
myself->fetchNextWeatherData();
});
}
void CWeatherManager::handleNextRequest()
{
Q_ASSERT(!m_pendingRequests.isEmpty());
@@ -136,7 +160,7 @@ namespace BlackCore
Q_ASSERT(weatherDataPlugin);
const auto fetchedWeatherGrid = weatherDataPlugin->getWeatherData();
const WeatherRequest weatherRequest = m_pendingRequests.constFirst();
const WeatherRequest weatherRequest = m_pendingRequests.front();
CWeatherGrid requestedWeatherGrid = weatherRequest.weatherGrid;
// Interpolation. So far it just picks the closest point without interpolation.
@@ -147,7 +171,11 @@ namespace BlackCore
gridPoint.setPosition(nearestGridPoint.getPosition());
}
if (weatherRequest.callback) { weatherRequest.callback.singleShot(requestedWeatherGrid); }
if (weatherRequest.callback)
{
weatherRequest.callback.singleShot(requestedWeatherGrid);
}
if (!weatherRequest.identifier.isAnonymous()) { emit weatherGridReceived(requestedWeatherGrid, weatherRequest.identifier); }
m_pendingRequests.pop_front();