private PolygonFeature GetPolygonFeatureData(PolygonFeatureGeoData featureGeoData, IEnumerable <MapData> records,
DateTime date)
{
var code = featureGeoData.ColumnValue.Trim();
MapData data = records.FirstOrDefault(x => x.ColumnValue == code);
PolygonFeature featureData = new PolygonFeature
{
Area = featureGeoData.Area,
SampleId = Guid.NewGuid().ToString("N"),
Geometry = featureGeoData.Coordinates.ToArray(),
ValidityTime = date,
ExtendedData = featureGeoData.ColumnValue,
UserConf = 100
};
if (data == null)
{
_logger.Line($"Failed to map feature data - {code}");
File.AppendAllLines(_missingMapsFileName, new[] { featureGeoData.ColumnValue });
}
else
{
featureData.LandCover = data.LandCover;
featureData.CropType1 = data.CropType1;
featureData.CropType2 = data.CropType2;
featureData.Irrigation1 = data.Irrigation1;
featureData.Irrigation2 = data.Irrigation2;
featureData.Irrigation3 = data.Irrigation3;
}
return(featureData);
}
private Task CreateFeatureReadTask(string shpPath, DateTime dateTime,
BlockingCollection <BaseFeature> featureList, long endIndex,
MapData[] mapDataList, long startIndex)
{
var task = Task.Factory.StartNew(() =>
{
_logger.Line(
$"{Environment.CurrentManagedThreadId} -Read Start S-{startIndex} E-{endIndex} Total-{endIndex - startIndex}");
using (var gdalWrapper = new GdalWrapper())
{
gdalWrapper.Configure();
gdalWrapper.InitializeDatasetForRead(shpPath, _config.InputDriverName);
IEnumerable <LayerWrapper> layers = gdalWrapper.GetLayers();
LayerWrapper layerWrapper = layers.First();
for (; startIndex < endIndex; startIndex++)
{
var featureWrapper = layerWrapper.GetFeature(startIndex);
if (featureWrapper == null)
{
continue;
}
PolygonFeatureGeoData featureData = featureWrapper.GetFieldGeo();
featureData.ColumnValue = featureWrapper.GetFieldAsString(_config.ColNameToRead);
featureList.Add(GetPolygonFeatureData(featureData, mapDataList, dateTime));
if ((endIndex - startIndex) % 1000 == 0)
{
_logger.Line(
$"{Environment.CurrentManagedThreadId} S-{startIndex} E-{endIndex} Remaining-{endIndex - startIndex}");
}
}
}
}
);
return(task);
}
