private static List <AlertHistoryItemModel> ProduceAlertHistoryItemsAsync(Stream stream)
{
Debug.Assert(stream != null, "stream is a null reference.");
var models = new List <AlertHistoryItemModel>();
try
{
stream.Position = 0;
using (var reader = new StreamReader(stream))
{
IEnumerable <ExpandoObject> expandos = ParsingHelper.ParseCsv(reader).ToExpandoObjects();
foreach (ExpandoObject expando in expandos)
{
AlertHistoryItemModel model = ProduceAlertHistoryItem(expando);
if (model != null)
{
models.Add(model);
}
}
}
}
finally
{
}
return(models);
}
private async static Task <List <AlertHistoryItemModel> > ProduceAlertHistoryItemsAsync(CloudBlockBlob blob)
{
Debug.Assert(blob != null, "blob is a null reference.");
var models = new List <AlertHistoryItemModel>();
var stream = new MemoryStream();
TextReader reader = null;
try
{
await blob.DownloadToStreamAsync(stream);
stream.Position = 0;
reader = new StreamReader(stream);
IEnumerable <ExpandoObject> expandos = ParsingHelper.ParseCsv(reader).ToExpandoObjects();
foreach (ExpandoObject expando in expandos)
{
AlertHistoryItemModel model = ProduceAlertHistoryItem(expando);
if (model != null)
{
models.Add(model);
}
}
}
finally
{
IDisposable dispStream = stream as IDisposable;
if (dispStream != null)
{
dispStream.Dispose();
}
IDisposable dispReader = reader as IDisposable;
if (dispReader != null)
{
dispReader.Dispose();
}
}
return(models);
}
private static List <AlertHistoryItemModel> ProduceAlertHistoryItemsAsync(Stream stream)
{
Debug.Assert(stream != null, "stream is a null reference.");
var models = new List <AlertHistoryItemModel>();
TextReader reader = null;
try
{
stream.Position = 0;
reader = new StreamReader(stream);
IEnumerable <ExpandoObject> expandos = ParsingHelper.ParseCsv(reader).ToExpandoObjects();
foreach (ExpandoObject expando in expandos)
{
AlertHistoryItemModel model = ProduceAlertHistoryItem(expando);
if (model != null)
{
models.Add(model);
}
}
}
finally
{
IDisposable dispStream = stream as IDisposable;
if (dispStream != null)
{
dispStream.Dispose();
}
IDisposable dispReader = reader as IDisposable;
if (dispReader != null)
{
dispReader.Dispose();
}
}
return(models);
}
private static AlertHistoryItemModel ProduceAlertHistoryItem(
ExpandoObject expandoObject,
string sourceField)
{
DateTime date;
AlertHistoryItemModel model;
string str;
Debug.Assert(
expandoObject != null,
"expandoObject is a null reference.");
Debug.Assert(
!string.IsNullOrEmpty(sourceField),
"sourceField is a null reference or empty string.");
model = null;
str =
ReflectionHelper.GetNamedPropertyValue(
expandoObject,
sourceField,
true,
false) as string;
if (string.Equals(
str,
"AlarmTemp",
StringComparison.OrdinalIgnoreCase))
{
model = new AlertHistoryItemModel()
{
RuleOutput = str
};
model.DeviceId =
ReflectionHelper.GetNamedPropertyValue(
expandoObject,
"deviceid",
true,
false) as string;
model.Value =
ReflectionHelper.GetNamedPropertyValue(
expandoObject,
"tempreading",
true,
false) as string;
}
else if (string.Equals(
str,
"AlarmHumidity",
StringComparison.OrdinalIgnoreCase))
{
model = new AlertHistoryItemModel()
{
RuleOutput = str
};
model.DeviceId =
ReflectionHelper.GetNamedPropertyValue(
expandoObject,
"deviceid",
true,
false) as string;
model.Value =
ReflectionHelper.GetNamedPropertyValue(
expandoObject,
"humidityreading",
true,
false) as string;
}
if (model != null)
{
str =
ReflectionHelper.GetNamedPropertyValue(
expandoObject,
"time",
true,
false) as string;
if (DateTime.TryParse(str, out date))
{
model.Timestamp = date;
}
model.Value = AttemptNumericFormatting(model.Value);
}
return(model);
}
