private async Task <HashSet <string> > GetLatestInclusionStates(string hash, HashSet <string> hashes) // non-public function
{
if (hashes.Count == 0)
{
return(null);
}
// get a list of confirmed TXs to the given address
var callerID = $"{nameof(GetLatestInclusionStates)}::{hash}";
// Get from a partial cache - list of confirmed TX hashes
var cached = await FS.GetFSPartialCacheEntryAsync(call : callerID);
var CachedOutput = cached == null ? new HashSet <string>() : (HashSet <string>)cached;
var loadedfromcache = CachedOutput.Count();
hashes.ExceptWith(CachedOutput); // removing all hashes that were already confirmed
InclusionStates res;
HashSet <string> OnlyNewlyConfirmedHashes = null;
if (hashes.Count > 0) // are there any non-confirmed left?
{
try
{
res = await Repo.GetLatestInclusionAsync((from h in hashes select new Hash(h)).ToList());
}
catch (Exception)
{
throw;
}
OnlyNewlyConfirmedHashes = (from v in res.States where v.Value == true select v.Key.Value).ToHashSet();
if (OnlyNewlyConfirmedHashes.Count > 0)
{
CachedOutput.UnionWith(OnlyNewlyConfirmedHashes); // saving all back to the cache
//Write to partial cache
await FS.AddFSPartialCacheEntryAsync(
call : callerID,
result : CachedOutput);
}
}
Logger.LogInformation("{callerID} in action. {loadedfromcache} confirmed hashes loaded from cache. {OnlyNewlyConfirmedHashes.Count} hashes were new ones.", callerID.Substring(0, 25), loadedfromcache, OnlyNewlyConfirmedHashes?.Count);
//returning all from cache + new one from API call
return(CachedOutput);
}
public async Task <HashSet <string> > GetTransactionsByBundle(string bundleHash)
{
// get a list of transactions to the given address
var callerID = $"{nameof(GetTransactionsByBundle)}::{bundleHash}";
// Get from a partial cache
var cached = await FS.GetFSPartialCacheEntryAsync(call : callerID);
HashSet <string> CachedOutput = cached == null ? new HashSet <string>() : (HashSet <string>)cached;
// Get info from node
TransactionHashList res;
try
{
res = await Repo.FindTransactionsByBundlesAsync(new List <Hash>() { new Hash(bundleHash) });
}
catch (Exception)
{
throw;
}
var origCnt = CachedOutput.Count;
CachedOutput.UnionWith((from i in res.Hashes select i.Value).ToArray());
if (origCnt < CachedOutput.Count) // need to update the record
{
//Write to partial cache
await FS.AddFSPartialCacheEntryAsync(
call : callerID,
result : CachedOutput);
}
Logger.LogInformation("{callerID} in action. {origCnt} transaction hashes loaded from cache. {CachedOutput.Count} hashes in total.", callerID.Substring(0, 50), origCnt, CachedOutput.Count);
return(CachedOutput);
}