Repo created

libs/map/features_fetcher.cpp

@@ -0,0 +1,94 @@
+#include "map/features_fetcher.hpp"
+
+#include "platform/platform.hpp"
+
+#include "indexer/classificator_loader.hpp"
+
+#include "base/assert.hpp"
+#include "base/logging.hpp"
+
+using platform::CountryFile;
+using platform::LocalCountryFile;
+
+FeaturesFetcher::FeaturesFetcher()
+{
+  m_dataSource.AddObserver(*this);
+}
+
+FeaturesFetcher::~FeaturesFetcher()
+{
+  m_dataSource.RemoveObserver(*this);
+}
+
+// While reading any files (classificator or mwm), there are 2 types of possible exceptions:
+// Reader::Exception, FileAbsentException.
+// Let's process RootException everywhere, to supress such errors.
+
+void FeaturesFetcher::InitClassificator()
+{
+  try
+  {
+    classificator::Load();
+  }
+  catch (RootException const & e)
+  {
+    LOG(LERROR, ("Classificator read error: ", e.what()));
+  }
+}
+
+std::pair<MwmSet::MwmId, MwmSet::RegResult> FeaturesFetcher::RegisterMap(LocalCountryFile const & localFile)
+{
+  try
+  {
+    auto result = m_dataSource.RegisterMap(localFile);
+    if (result.second != MwmSet::RegResult::Success)
+    {
+      LOG(LWARNING, ("Can't add map", localFile.GetCountryName(), "(", result.second, ").",
+                     "Probably it's already added or has newer data version."));
+    }
+    else
+    {
+      MwmSet::MwmId const & id = result.first;
+      ASSERT(id.IsAlive(), ());
+      m_rect.Add(id.GetInfo()->m_bordersRect);
+    }
+
+    return result;
+  }
+  catch (RootException const & ex)
+  {
+    LOG(LERROR, ("IO error while adding", localFile.GetCountryName(), "map.", ex.Msg()));
+    return std::make_pair(MwmSet::MwmId(), MwmSet::RegResult::BadFile);
+  }
+}
+
+bool FeaturesFetcher::DeregisterMap(CountryFile const & countryFile)
+{
+  return m_dataSource.Deregister(countryFile);
+}
+
+void FeaturesFetcher::Clear()
+{
+  m_dataSource.Clear();
+}
+
+void FeaturesFetcher::ClearCaches()
+{
+  m_dataSource.ClearCache();
+}
+
+m2::RectD FeaturesFetcher::GetWorldRect() const
+{
+  if (m_rect == m2::RectD())
+  {
+    // Rect is empty when no countries are loaded, return max global rect.
+    return mercator::Bounds::FullRect();
+  }
+  return m_rect;
+}
+
+void FeaturesFetcher::OnMapDeregistered(platform::LocalCountryFile const & localFile)
+{
+  if (m_onMapDeregistered)
+    m_onMapDeregistered(localFile);
+}