public UInt256 GetValue(UInt160 contract, UInt256 key)
{
var value = _state.Get(
EntryPrefix.StorageByHash.BuildPrefix(contract).Concat(key.ToBytes()).ToArray()
);
return(value is null ? UInt256Utils.Zero : value.ToUInt256());
}
public Money GetBalance(UInt160 owner)
{
var key = EntryPrefix.BalanceByOwnerAndAsset.BuildPrefix(owner);
var value = _state.Get(key);
var balance = value?.ToUInt256() ?? UInt256Utils.Zero;
return(new Money(balance));
}
public EventObject GetEventByTransactionHashAndIndex(UInt256 transactionHash, uint eventIndex)
{
var prefix = EntryPrefix.EventByTransactionHashAndIndex.BuildPrefix(transactionHash, eventIndex);
var raw = _state.Get(prefix);
prefix = EntryPrefix.EventTopicsByTransactionHashAndIndex.BuildPrefix(transactionHash, eventIndex);
var topics = _state.Get(prefix);
return(new EventObject(
raw is null ? null : Event.Parser.ParseFrom(raw),
topics is null ? null : topics.ByteArrayToTransactionHashList().ToList()
));
}
public ConsensusState GetConsensusState()
{
var raw = _state.Get(EntryPrefix.ConsensusState.BuildPrefix()) ??
throw new ConsensusStateNotPresentException();
return(ConsensusState.FromBytes(raw));
}
public ulong GetTotalTransactionCount(UInt160 from)
{
var raw = _state.Get(EntryPrefix.TransactionCountByFrom.BuildPrefix(from));
return(raw?.AsReadOnlySpan().ToUInt64() ?? 0u);
}
public Contract?GetContractByHash(UInt160 contractHash)
{
var value = _state.Get(EntryPrefix.ContractByHash.BuildPrefix(contractHash));
return(value != null?Contract.FromBytes(value) : null);
}
public ulong GetTotalBlockHeight()
{
var raw = _state.Get(EntryPrefix.BlockHeight.BuildPrefix());
return(raw?.AsReadOnlySpan().ToUInt64() ?? 0u);
}