internal static DbSpatialDataReader CreateSpatialDataReader(
MetadataWorkspace workspace,
DbDataReader reader)
{
StoreItemCollection itemCollection = (StoreItemCollection)workspace.GetItemCollection(DataSpace.SSpace);
DbSpatialDataReader spatialDataReader = itemCollection.ProviderFactory.GetProviderServices().GetSpatialDataReader(reader, itemCollection.ProviderManifestToken);
if (spatialDataReader == null)
{
throw new ProviderIncompatibleException(Strings.ProviderDidNotReturnSpatialServices);
}
return(spatialDataReader);
}
internal static object GetSpatialValue(
MetadataWorkspace workspace,
DbDataReader reader,
TypeUsage columnType,
int columnOrdinal)
{
DbSpatialDataReader spatialDataReader = SpatialHelpers.CreateSpatialDataReader(workspace, reader);
if (Helper.IsGeographicType((PrimitiveType)columnType.EdmType))
{
return((object)spatialDataReader.GetGeography(columnOrdinal));
}
return((object)spatialDataReader.GetGeometry(columnOrdinal));
}
internal static async Task <object> GetSpatialValueAsync(
MetadataWorkspace workspace,
DbDataReader reader,
TypeUsage columnType,
int columnOrdinal,
CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
DbSpatialDataReader spatialReader = SpatialHelpers.CreateSpatialDataReader(workspace, reader);
if (Helper.IsGeographicType((PrimitiveType)columnType.EdmType))
{
return((object)await spatialReader.GetGeographyAsync(columnOrdinal, cancellationToken).WithCurrentCulture <DbGeography>());
}
return((object)await spatialReader.GetGeometryAsync(columnOrdinal, cancellationToken).WithCurrentCulture <DbGeometry>());
}