private static void InvalidatePoliticianImage(string politicianKey)
{
// We do this via updates to avoid synchronization problems
var oldBlobs = PoliticiansImagesBlobsLocal.GetDataByPoliticianKey(politicianKey);
if (oldBlobs.Count == 1)
{
var newBlobs =
PoliticiansImagesBlobsGlobal.GetCacheDataByPoliticianKey(politicianKey);
switch (newBlobs.Count)
{
case 1:
{
var oldRow = oldBlobs[0];
var newRow = newBlobs[0];
oldRow.Profile300 = newRow.Profile300;
oldRow.Profile200 = newRow.Profile200;
oldRow.Headshot100 = newRow.Headshot100;
oldRow.Headshot75 = newRow.Headshot75;
oldRow.Headshot50 = newRow.Headshot50;
oldRow.Headshot35 = newRow.Headshot35;
oldRow.Headshot25 = newRow.Headshot25;
oldRow.Headshot20 = newRow.Headshot20;
oldRow.Headshot15 = newRow.Headshot15;
PoliticiansImagesBlobsLocal.UpdateTable(oldBlobs);
}
break;
case 0:
PoliticiansImagesBlobsLocal.DeleteByPoliticianKey(politicianKey);
break;
}
}
var oldData = PoliticiansImagesDataLocal.GetDataByPoliticianKey(politicianKey);
if (oldData.Count != 1)
{
return;
}
var newData =
PoliticiansImagesDataGlobal.GetDataByPoliticianKey(politicianKey);
switch (newData.Count)
{
case 1:
{
var oldRow = oldData[0];
var newRow = newData[0];
oldRow.ProfileOriginalDate = newRow.ProfileOriginalDate;
oldRow.HeadshotDate = newRow.HeadshotDate;
oldRow.HeadshotResizeDate = newRow.HeadshotResizeDate;
PoliticiansImagesDataLocal.UpdateTable(oldData);
}
break;
case 0:
PoliticiansImagesDataLocal.DeleteByPoliticianKey(politicianKey);
break;
}
}
public static ImageModDates GetImageModDates(string politicianKey)
{
ImageModDates result;
lock (ImageModDatesCache)
if (!ImageModDatesCache.TryGetValue(politicianKey, out result))
{
var table = PoliticiansImagesData.GetData(politicianKey);
if (table.Count == 0)
{
ImageManager.CopyCommonDataToLocal(politicianKey);
table = PoliticiansImagesData.GetData(politicianKey);
}
result = RefreshImageModDates(table);
}
// check for cache expiration
if (result.RefreshDate + new TimeSpan(0, CacheExpiration, 0) < DateTime.UtcNow)
{
lock (ImageModDatesCache)
{
// expired
ImageManager.CopyCommonDataToLocal(politicianKey);
var table = PoliticiansImagesData.GetData(politicianKey);
result = RefreshImageModDates(table);
}
}
return(result ?? new ImageModDates());
}
