private async static Task<List<DeviceTelemetrySummaryModel>> LoadBlobTelemetrySummaryModelsAsync(
CloudBlockBlob blob)
{
Debug.Assert(blob != null, "blob is a null reference.");
var models = new List<DeviceTelemetrySummaryModel>();
TextReader reader = null;
MemoryStream stream = null;
try
{
stream = new MemoryStream();
await blob.DownloadToStreamAsync(stream);
stream.Position = 0;
reader = new StreamReader(stream);
IEnumerable<StrDict> strdicts = ParsingHelper.ParseCsv(reader).ToDictionaries();
DeviceTelemetrySummaryModel model;
double number;
string str;
foreach (StrDict strdict in strdicts)
{
model = new DeviceTelemetrySummaryModel();
if (strdict.TryGetValue("deviceid", out str))
{
model.DeviceId = str;
}
if (strdict.TryGetValue("averagehumidity", out str) &&
double.TryParse(
str,
NumberStyles.Float,
CultureInfo.InvariantCulture,
out number))
{
model.AverageHumidity = number;
}
if (strdict.TryGetValue("maxhumidity", out str) &&
double.TryParse(
str,
NumberStyles.Float,
CultureInfo.InvariantCulture,
out number))
{
model.MaximumHumidity = number;
}
if (strdict.TryGetValue("minimumhumidity", out str) &&
double.TryParse(
str,
NumberStyles.Float,
CultureInfo.InvariantCulture,
out number))
{
model.MinimumHumidity = number;
}
if (strdict.TryGetValue("timeframeminutes", out str) &&
double.TryParse(
str,
NumberStyles.Float,
CultureInfo.InvariantCulture,
out number))
{
model.TimeFrameMinutes = number;
}
// Translate LastModified to local time zone. DateTimeOffsets
// don't do this automatically. This is for equivalent behavior
// with parsed DateTimes.
if ((blob.Properties != null) &&
blob.Properties.LastModified.HasValue)
{
model.Timestamp = blob.Properties.LastModified.Value.LocalDateTime;
}
models.Add(model);
}
}
finally
{
IDisposable disp;
if ((disp = stream) != null)
{
disp.Dispose();
}
if ((disp = reader) != null)
{
disp.Dispose();
}
}
return models;
}
private static List<DeviceTelemetrySummaryModel> LoadBlobTelemetrySummaryModels(Stream stream, DateTime? lastModifiedTime)
{
Debug.Assert(stream != null, "stream is a null reference.");
var models = new List<DeviceTelemetrySummaryModel>();
TextReader reader = null;
try
{
stream.Position = 0;
reader = new StreamReader(stream);
IEnumerable<StrDict> strdicts = ParsingHelper.ParseCsv(reader).ToDictionaries();
DeviceTelemetrySummaryModel model;
double number;
string str;
foreach (StrDict strdict in strdicts)
{
model = new DeviceTelemetrySummaryModel();
if (strdict.TryGetValue("deviceid", out str))
{
model.DeviceId = str;
}
if (strdict.TryGetValue("averagehumidity", out str) &&
double.TryParse(
str,
NumberStyles.Float,
CultureInfo.InvariantCulture,
out number))
{
model.AverageHumidity = number;
}
if (strdict.TryGetValue("maxhumidity", out str) &&
double.TryParse(
str,
NumberStyles.Float,
CultureInfo.InvariantCulture,
out number))
{
model.MaximumHumidity = number;
}
if (strdict.TryGetValue("minimumhumidity", out str) &&
double.TryParse(
str,
NumberStyles.Float,
CultureInfo.InvariantCulture,
out number))
{
model.MinimumHumidity = number;
}
if (strdict.TryGetValue("timeframeminutes", out str) &&
double.TryParse(
str,
NumberStyles.Float,
CultureInfo.InvariantCulture,
out number))
{
model.TimeFrameMinutes = number;
}
model.Timestamp = lastModifiedTime;
models.Add(model);
}
}
finally
{
IDisposable disp;
if ((disp = stream) != null)
{
disp.Dispose();
}
if ((disp = reader) != null)
{
disp.Dispose();
}
}
return models;
}
private async static Task<List<DeviceTelemetrySummaryModel>> LoadBlobTelemetrySummaryModelsAsync(
CloudBlockBlob blob)
{
IDisposable disp;
IEnumerable<StrDict> strdicts;
DeviceTelemetrySummaryModel model;
List<DeviceTelemetrySummaryModel> models;
double number;
TextReader reader;
string str;
MemoryStream stream;
Debug.Assert(blob != null, "blob is a null reference.");
models = new List<DeviceTelemetrySummaryModel>();
reader = null;
stream = null;
try
{
stream = new MemoryStream();
await blob.DownloadToStreamAsync(stream);
stream.Position = 0;
reader = new StreamReader(stream);
strdicts = ParsingHelper.ParseCsv(reader).ToDictionaries();
foreach (StrDict strdict in strdicts)
{
model = new DeviceTelemetrySummaryModel();
if (strdict.TryGetValue("deviceid", out str))
{
model.DeviceId = str;
}
if (strdict.TryGetValue("averagehumidity", out str) &&
double.TryParse(str, out number))
{
model.AverageHumidity = number;
}
if (strdict.TryGetValue("maxhumidity", out str) &&
double.TryParse(str, out number))
{
model.MaximumHumidity = number;
}
if (strdict.TryGetValue("minimumhumidity", out str) &&
double.TryParse(str, out number))
{
model.MinimumHumidity = number;
}
if (strdict.TryGetValue("timeframeminutes", out str) &&
double.TryParse(str, out number))
{
model.TimeFrameMinutes = number;
}
if ((blob.Properties != null) &&
blob.Properties.LastModified.HasValue)
{
model.Timestamp =
blob.Properties.LastModified.Value.UtcDateTime;
}
models.Add(model);
}
}
finally
{
if ((disp = stream) != null)
{
disp.Dispose();
}
if ((disp = reader) != null)
{
disp.Dispose();
}
}
return models;
}