Initial commit

Lts/Services/AreaEffectSimulation/meteo_data_provider.cpp

@@ -0,0 +1,104 @@
+/**
+  * Subscribe to MeteoDataManagement and provide the correct weather for the given position
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+
+#include "meteo_data_provider.h"
+#include "main_handler.h"
+#include <LtsCoordTrans/lts_coord_trans.h>
+#include "settings.h"
+
+using namespace AreaEffectSimulation;
+
+MeteoDataProvider::MeteoDataProvider(MainHandler *mainHandler)
+  : QObject()
+  , m_mainHandler(mainHandler)
+  , m_mdmDtc(MeteoDataManagement::Interface::Dtc::create(m_mainHandler->dds()->ddsConnector()))
+  , m_staticWeatherId(0)
+{
+  connect(m_mdmDtc.get(), &MeteoDataManagement::Interface::Dtc::meteoDataChanged,
+          this, &MeteoDataProvider::meteoDataChanged);
+  m_mdmDtc->enableMeteoData();
+}
+
+MeteoDataProvider::~MeteoDataProvider()
+{}
+
+MeteoDataManagement::MeteoData MeteoDataProvider::getStaticWeather()
+{
+  initWeatherData();
+  if (m_staticWeatherId > 0)
+  {
+    auto it = m_meteoData.find(m_staticWeatherId);
+    if (it != m_meteoData.end())
+      return it.value();
+  }
+  // default values from wikipedia for aviations
+  MeteoDataManagement::MeteoData dummyWeather;
+  dummyWeather.pressure(1013.25);
+  dummyWeather.temperature(15);
+  dummyWeather.humidity(0);
+
+  dummyWeather.timeStamp(m_mainHandler->dds()->currentPartitionTimeMSec());
+  dummyWeather.windDirection(0);
+  dummyWeather.windSpeed(0);
+  dummyWeather.windOk(true);
+  dummyWeather.climateOk(true);
+  return dummyWeather;
+}
+
+MeteoDataManagement::MeteoData MeteoDataProvider::getNearestWeather(const Core::GeoPosition2D &pos)
+{
+  initWeatherData();
+  LtsCoordTrans::UtmCoordinate utm(LtsCoordTrans::UtmCoordinate::fromGeographic(pos.lon(), pos.lat()));
+  double nearestDistanceSquared = std::numeric_limits<double>::max();
+  MeteoDataManagement::MeteoData retMd;
+  for (const auto &md : qAsConst(m_meteoData))
+  {
+    if (md.isStaticMeteoData())
+      continue;
+    if (QDateTime::fromMSecsSinceEpoch(md.timeStamp()).addMSecs(Settings::getValidityPeriodWeatherData()) < m_mainHandler->dds()->currentPartitionTime())
+      continue;
+    const double distanceSquared = LtsCoordTrans::squareDistance(utm, md.pos().lon(), md.pos().lat());
+    if (distanceSquared < nearestDistanceSquared)
+    {
+      retMd = md;
+      nearestDistanceSquared = distanceSquared;
+    }
+  }
+  return (retMd.id() > 0) ? retMd : getStaticWeather();
+}
+
+void MeteoDataProvider::meteoDataChanged(const MeteoDataManagement::MeteoData &data, DataModification modType)
+{
+  switch (modType)
+  {
+  case DataModification::eRemoved:
+    m_meteoData.remove(data.id());
+    if (m_staticWeatherId == data.id())
+      m_staticWeatherId = 0;
+    break;
+  case DataModification::eAdded:
+  case DataModification::eModified:
+    m_meteoData[data.id()] = data;
+    if (data.isStaticMeteoData())
+      m_staticWeatherId = data.id();
+    break;
+  }
+}
+
+void MeteoDataProvider::initWeatherData()
+{
+  if (!m_meteoData.isEmpty())
+    return;
+  m_mdmDtc->waitForHistoricalDataMeteoData();
+  m_meteoData = m_mdmDtc->meteoDatas();
+  for (const auto &data : qAsConst(m_meteoData))
+    if (data.isStaticMeteoData())
+    {
+      m_staticWeatherId = data.id();
+      return;
+    }
+}