/// <summary>
/// Tries to load data from the population report cache
/// </summary>
/// <returns>True if data is loaded; otherwise - false</returns>
private bool TryLoadCachedData()
{
if (populationData != null)
{
return(true);
}
lock (syncLock)
{
if (populationData != null)
{
return(true);
}
var reportFileInfo = new FileInfo(ReportFile);
if (reportFileInfo.Exists)
{
resetOnRead = reportFileInfo.Length > MaxReportFileSize;
try
{
using (var fs = new FileStream(ReportFile, FileMode.Open, FileAccess.ReadWrite, FileShare.Read))
{
populationData = Serializer.Deserialize <PopulationReportCache>(fs);
LoadPlayerTypes();
return(true);
}
}
catch (Exception ex)
{
LogProvider.Log.Error(this, $"Population report could not be loaded from '{ReportFile}'", ex);
}
}
populationData = new PopulationReportCache
{
Report = new List <PopulationReportIndicators>()
};
}
return(false);
}
/// <summary>
/// Gets population data
/// </summary>
public IEnumerable <ReportIndicators> GetReport(bool forceRefresh, CancellationToken cancellationToken)
{
try
{
if (!TryLoadCachedData())
{
ValidateCache();
BuildReportData(cancellationToken);
}
else if (!ValidateCache() || forceRefresh)
{
BuildReportData(cancellationToken);
}
return(populationData.Report.ToList());
}
finally
{
if (resetOnRead)
{
populationData = null;
}
}
}