///// <summary>
///// 获得nep5资产的exchange合约映射
///// </summary>
///// <param name="tokenA"></param>
///// <param name="tokenB"></param>
///// <returns></returns>
//public static byte[] GetExchangePair(byte[] tokenA, byte[] tokenB)
//{
// return Storage.Get(GetPairKey(tokenA, tokenB));
//}
/// <summary>
/// 获得nep5资产的exchange合约映射
/// </summary>
/// <returns></returns>
public static ExchangePair[] GetAllExchangePair()
{
var iterator = Storage.Find(ExchangeMapKey);
var result = new ExchangePair[0];
while (iterator.Next())
{
var exchangeContractHash = iterator.Value;
if (exchangeContractHash.Length == 20)
{
var keyPair = iterator.Key.AsByteArray().Last(40);
var tokenA = keyPair.Take(20);
var tokenB = keyPair.Last(20);
var item = new ExchangePair()
{
TokenA = tokenA,
TokenB = tokenB,
ExchangePairHash = exchangeContractHash,
};
Append(result, item);
}
}
return(result);
}
/// <summary>
/// 获得nep17资产的exchange合约映射
/// </summary>
/// <returns></returns>
public static ExchangePair[] GetAllExchangePair()
{
var iterator = (Iterator <KeyValue>)StorageFind(ExchangeMapKey);
var result = new ExchangePair[0];
while (iterator.Next())
{
var keyValue = iterator.Value;
if (keyValue.Value != null)
{
var exchangeContractHash = keyValue.Value;
var tokenA = keyValue.Key.Take(20);
var tokenB = keyValue.Key.Last(20);
var item = new ExchangePair()
{
TokenA = (UInt160)tokenA,
TokenB = (UInt160)tokenB,
ExchangePairHash = exchangeContractHash,
};
Append(result, item);
}
}
return(result);
}