public List <SignedLedger> GetLedgersFromHeight(long startHeight)
{
using (var entities = new BlockchainEntities())
{
var rawLedgers = entities.ledgers.Where(_ => _.height >= startHeight).ToList();
return(rawLedgers.Select(_ => LedgerCompressionEngine.ReadZippedLedger(_.raw)).ToList());
}
}
public SignedLedger GetLastLedgerFromRaw()
{
using (var entities = new BlockchainEntities())
{
var max = entities.ledgers.OrderByDescending(ledger => ledger.height).FirstOrDefault();
Debug.Assert(max == null || max.raw != null && max.raw.Length != 0);
return(LedgerCompressionEngine.ReadZippedLedger(max?.raw));
}
}
public SignedLedger GetLedgerByHash(LedgerHash hash)
{
using (var entities = new BlockchainEntities())
{
var ledger = entities.ledgers.FirstOrDefault(_ => _.hash == hash.Bytes);
var raw = ledger?.raw;
return(LedgerCompressionEngine.ReadZippedLedger(raw));
}
}
public static bool TryReadSignedLedger(GetSignedLedgerResponse response, out SignedLedger signed)
{
try
{
signed = LedgerCompressionEngine.ReadZippedLedger(Convert.FromBase64String(response.Ledger));
}
catch
{
signed = null;
return(false);
}
return(true);
}
public List <SignedLedgerState> GetLedgersWithStateFromHeight(long startHeight)
{
using (var entities = new BlockchainEntities())
{
var rawLedgers = entities.ledgers.Where(_ => _.height >= startHeight).ToList();
var readedLedgers = rawLedgers.Select(_ => LedgerCompressionEngine.ReadZippedLedger(_.raw));
var rawStateChanges = entities.ledgerstatechanges.Where(_ => _.ledger_height >= startHeight).ToList();
var readedStateChanges = rawStateChanges.Select(_ => ReadStateChange(_.ledger_height, _.raw));
var results = from ledger in readedLedgers
join state in readedStateChanges
on ledger.Ledger.LedgerLight.Height equals state.Item1
select new SignedLedgerState(ledger, state.Item2);
return(results.ToList());
}
}
public SignedLedger GetLedgerFromRaw(long height)
{
return(LedgerCompressionEngine.ReadZippedLedger(GetRawLedger(height)));
}