private async Task <bool> UpdateVerifiedPackagesAsync()
{
// The "old" data in this case is the latest file that was copied to the region's storage container by this
// job (or initialized by Db2AzureSearch).
var oldResult = await _verifiedPackagesDataClient.ReadLatestAsync(
AccessConditionWrapper.GenerateEmptyCondition(),
_stringCache);
// The "new" data in this case is from the database.
var newData = await _databaseFetcher.GetVerifiedPackagesAsync();
var changes = new HashSet <string>(oldResult.Data, oldResult.Data.Comparer);
changes.SymmetricExceptWith(newData);
_logger.LogInformation("{Count} package IDs have verified status changes.", changes.Count);
if (changes.Count == 0)
{
return(false);
}
else
{
await _verifiedPackagesDataClient.ReplaceLatestAsync(newData, oldResult.Metadata.GetIfMatchCondition());
return(true);
}
}
