public async Task <bool> TryShowRowForUrn(SessionDetails sessionDetails, string systemName, string referenceVariableName, string urnValue, List <string> variableNames, TextWriter outputWriter)
{
FastStatsSystemService fastStatsSystemService = new FastStatsSystemService(connectorFactory, dataViewName);
Variable referenceVariable = await fastStatsSystemService.GetVariable(sessionDetails, systemName, referenceVariableName);
if (referenceVariable == null)
{
throw new Exception($"The variable {referenceVariableName} wasn't found in the system {systemName}");
}
Query query = BuildQueryForUrn(referenceVariable, urnValue);
variableNames.Insert(0, referenceVariableName);
List <Column> columns = BuildExportColumns(variableNames);
ExportsService exportsService = new ExportsService(connectorFactory, dataViewName);
List <string> rows = await exportsService.ExportData(systemName, sessionDetails, query, columns, 1, TimeSpan.FromMinutes(5));
if (rows == null)
{
return(false);
}
foreach (string row in rows)
{
outputWriter.WriteLine(row);
}
return(true);
}
public async Task <bool> TryShowCubeForVariables(SessionDetails sessionDetails, string systemName, string queryFilePath, List <string> variableNames, TextWriter outputWriter)
{
QueriesService queriesService = new QueriesService(connectorFactory, dataViewName);
Query query = await queriesService.GetQueryDefinitionFromFile(systemName, sessionDetails, queryFilePath, TimeSpan.FromMinutes(5));
if (query == null)
{
return(false);
}
if (query?.Selection?.TableName == null)
{
throw new Exception($"The query {queryFilePath} must have at least a selection with a table name");
}
FastStatsSystemService fastStatsSystemService = new FastStatsSystemService(connectorFactory, dataViewName);
foreach (string variableName in variableNames)
{
Variable variable = await fastStatsSystemService.GetVariable(sessionDetails, systemName, variableName);
if (variable == null)
{
throw new Exception($"Couldn't find a variable with the name {variableName} in the system {systemName}");
}
if (variable.Type != Variable.TypeEnum.Selector)
{
throw new Exception($"The DataAggregator can only build cubes with selector variables, but {variable.Description} is of type {variable.Type}");
}
}
List <Dimension> dimensions = BuildDimensions(variableNames);
List <Measure> measures = BuildMeasures(query.Selection.TableName);
CubesService cubesService = new CubesService(connectorFactory, dataViewName);
List <string> rows = await cubesService.CalculateCube(systemName, sessionDetails, query, dimensions, measures, TimeSpan.FromMinutes(5));
if (rows == null)
{
return(false);
}
foreach (string row in rows)
{
outputWriter.WriteLine(row);
}
return(true);
}
public async Task <bool> TryShowRowsForQuery(SessionDetails sessionDetails, string systemName, string queryFilePath, List <string> variableNames, int topNRows, TextWriter outputWriter)
{
QueriesService queriesService = new QueriesService(connectorFactory, dataViewName);
Query query = await queriesService.GetQueryDefinitionFromFile(systemName, sessionDetails, queryFilePath, TimeSpan.FromMinutes(5));
if (query == null)
{
return(false);
}
if (query?.Selection?.TableName == null)
{
throw new Exception($"The query {queryFilePath} must have at least a selection with a table name");
}
FastStatsSystemService fastStatsSystemService = new FastStatsSystemService(connectorFactory, dataViewName);
Variable referenceVariable = await fastStatsSystemService.GetReferenceVariableForTable(sessionDetails, systemName, query.Selection.TableName);
if (referenceVariable != null)
{
variableNames.Insert(0, referenceVariable.Name);
}
List <Column> columns = BuildExportColumns(variableNames);
ExportsService exportsService = new ExportsService(connectorFactory, dataViewName);
List <string> rows = await exportsService.ExportData(systemName, sessionDetails, query, columns, topNRows, TimeSpan.FromMinutes(5));
if (rows == null)
{
return(false);
}
foreach (string row in rows)
{
outputWriter.WriteLine(row);
}
return(true);
}
public async Task <bool> OutputStats(SessionDetails sessionDetails, TextWriter outputWriter)
{
FastStatsSystemService fastStatsSystemService = new FastStatsSystemService(connectorFactory, dataViewName);
List <string> systemNames = await fastStatsSystemService.GetSystemNames(sessionDetails);
if (systemNames == null || systemNames.Count == 0)
{
logger.LogError($"Couldn't find any FastStats systems in data view {dataViewName}");
return(false);
}
foreach (string systemName in systemNames)
{
VariableStatistics stats = await fastStatsSystemService.GetVariableStatistics(systemName, sessionDetails);
outputWriter.WriteLine(stats);
outputWriter.WriteLine();
outputWriter.WriteLine();
}
return(true);
}
