/// <summary>
/// Creates a StringWriter containing all specified data values to download in CSV format
/// </summary>
/// <param name="db">The original HISDataContext, containing a list of ODM databases.</param>
/// <param name="dataQueryForm">The data query form.</param>
/// <param name="form">The form.</param>
/// <returns></returns>
public static void Download(HISDataContext db, DataQueryFormModel dataQueryForm, FormCollection form)
{
var dataQueryModel = NewDataQueryModel(db, dataQueryForm);
foreach (TimeSeriesModel item in dataQueryModel.SeriesCatalog)
{
if (IsChecked(form, (item.TimeSeries.SeriesID + "@" + item.OdmDb).ToString()))
{
DownloadTimeSeries(db, dataQueryForm, form, item);
}
}
}
/// <summary>
/// Converts a list of unparsed DbID strings into DbIDs.
/// </summary>
/// <param name="form">The form.</param>
/// <returns></returns>
public static DataQueryFormModel ParsedDataQueryForm(UnparsedDataQueryFormModel form)
{
DataQueryFormModel dataQueryForm = new DataQueryFormModel()
{
RegionIDs = new List <DbID>(),
VariableIDs = new List <DbID>(),
CustomVariable = form.CustomVariable
};
if (form.StartTime != null)
{
dataQueryForm.StartTime = Convert.ToDateTime(form.StartTime);
}
else
{
dataQueryForm.StartTime = null;
}
if (form.EndTime != null)
{
dataQueryForm.EndTime = Convert.ToDateTime(form.EndTime);
}
else
{
dataQueryForm.EndTime = null;
}
foreach (var item in form.RegionIDs)
{
dataQueryForm.RegionIDs.Add(ParsedDbID(item));
}
if (form.VariableIDs != null)
{
foreach (var item in form.VariableIDs)
{
if (item.Equals("None") != true)
{
dataQueryForm.VariableIDs.Add(ParsedDbID(item));
}
}
}
return(dataQueryForm);
}
/// <summary>
/// Get a new DataQueryModel from submitted information.
/// </summary>
/// <param name="db">The db.</param>
/// <param name="dataQueryForm">The data query form.</param>
/// <returns></returns>
public static DataQueryModel NewDataQueryModel(HISDataContext db, DataQueryFormModel dataQueryForm)
{
var dataQueryModel = new DataQueryModel()
{
Regions = new List <RegionModel>(),
Sites = new List <SiteModel>(),
Sources = new List <SourceModel>(),
Variables = new List <VariableModel>(),
SeriesCatalog = new List <TimeSeriesModel>(),
DataQueryForm = dataQueryForm
};
var items = db.ODMDatabases;
dataQueryModel = DataQueryRepository.AddRegions(dataQueryModel, db);
foreach (var odmDb in items)
{
ODMDbDataContext db2 = DataQueryRepository.GetODMDbDataContext(odmDb);
dataQueryModel = DataQueryRepository.AddSitesSourcesVars(dataQueryModel, db2, odmDb.Title);
if (dataQueryForm != null)
{
List <RegionDatabase> matches = (from rd in db.RegionDatabases
where (rd.DatabaseID == odmDb.DatabaseID)
select rd).ToList <RegionDatabase>();
var isInRegion = false;
if (matches != null)
{
foreach (var match in matches)
{
if (dataQueryForm.RegionIDs.Any(s => s.ID == match.RegionID))
{
isInRegion = true;
}
}
}
if (isInRegion)
{
foreach (var item in db2.TimeSeries)
{
if (dataQueryForm.VariableIDs.Count > 0)
{
if (
dataQueryForm.VariableIDs.Any(s => (s.ID == item.VariableID) & (s.OdmDb == odmDb.Title)) ||
(
(dataQueryForm.CustomVariable != null) &&
db2.Variables.SingleOrDefault(v => v.VariableID == item.VariableID).VariableName.ToUpper().Contains(dataQueryForm.CustomVariable.ToUpper())
)
)
{
dataQueryModel.SeriesCatalog.Add(new TimeSeriesModel()
{
TimeSeries = item, OdmDb = odmDb.Title
});
}
}
else
{
if ((dataQueryForm.CustomVariable != null) &&
db2.Variables.SingleOrDefault(v => v.VariableID == item.VariableID).VariableName.ToUpper().Contains(dataQueryForm.CustomVariable.ToUpper()))
{
dataQueryModel.SeriesCatalog.Add(new TimeSeriesModel()
{
TimeSeries = item, OdmDb = odmDb.Title
});
}
}
}
}
}
}
var allRegionIDs = new List <DbID>();
var allVarIDs = new List <DbID>();
foreach (var item in dataQueryModel.Regions)
{
allRegionIDs.Add(new DbID()
{
ID = item.Region.RegionID, OdmDb = item.OdmDb
});
}
foreach (var item in dataQueryModel.Variables)
{
allVarIDs.Add(new DbID()
{
ID = item.Variable.VariableID, OdmDb = item.OdmDb
});
}
if (dataQueryModel.DataQueryForm == null)
{
dataQueryModel.DataQueryForm = new DataQueryFormModel()
{
RegionIDs = allRegionIDs,
VariableIDs = allVarIDs
};
}
return(dataQueryModel);
}
/// <summary>
/// Downloads the time series.
/// </summary>
/// <param name="db">The db.</param>
/// <param name="Downloader">The downloader.</param>
/// <param name="item">The item.</param>
public static void DownloadTimeSeries(HISDataContext db, DataQueryFormModel dataQueryForm, FormCollection form, TimeSeriesModel item)
{
var odmDb = db.ODMDatabases.SingleOrDefault(d => d.Title == item.OdmDb);
using (ODMDbDataContext db2 = GetODMDbDataContext(odmDb))
{
var dataList = (from data in db2.DataValues
where (data.SiteID == item.TimeSeries.SiteID) &
(data.SourceID == item.TimeSeries.SourceID) &
(data.VariableID == item.TimeSeries.VariableID) &
(dataQueryForm.StartTime != null ? (data.LocalDateTime.CompareTo(dataQueryForm.StartTime) >= 0) : true) &
(dataQueryForm.EndTime != null ? (data.LocalDateTime.CompareTo(dataQueryForm.EndTime) <= 0) : true)
orderby data.LocalDateTime
select data).ToList();
string newLine = "Time,Value";
string[] vars = { "Unit", "Variable", "Site", "Source", "Method", "Sample", "QualityControlLevel" };
foreach (var thisVar in vars)
{
if (IsChecked(form, "select" + thisVar))
{
newLine = newLine + "," + thisVar;
}
}
try
{
HttpContext.Current.Response.Write(newLine);
}
catch
{
}
int lines = 0;
foreach (var data in dataList)
{
var varDictionary = new Dictionary <string, string>()
{
{ "Unit", data.Variable.Unit.UnitsName != null ? data.Variable.Unit.UnitsName : "" },
{ "Variable", data.Variable != null ? data.Variable.VariableName + "(" + data.Variable.DataType + ")" : "" },
{ "Site", data.Site != null ? data.Site.SiteName : "" },
{ "Source", data.Source != null ? data.Source.Organization : "" },
{ "Method", data.Method != null ? data.Method.MethodDescription : "" },
{ "Sample", data.Sample != null ? data.Sample.SampleType : "" },
{ "QualityControlLevel", data.QualityControlLevel != null ? data.QualityControlLevel.Definition : "" }
};
newLine = @"""" + data.LocalDateTime + @""",""" +
data.DataValue1 + @"""";
foreach (var thisVar in varDictionary)
{
if (IsChecked(form, "select" + thisVar.Key))
{
newLine = newLine + @",""" + thisVar.Value + @"""";
}
}
WriteResponseLine(newLine);
lines++;
if (lines > 99)
{
HttpContext.Current.Response.Flush();
lines = 0;
}
}
}
}
