public T HGet <T>(string key, string field)
{
ValidateKeyVal(key);
ValidateFieldVal(field);
var command = new HGetCommand <T>(key, field);
return(command.Execute());
}
private string PerformHGet(HGetCommand command)
{
if (_storage.TryGetValue(command.Key, out var value))
{
if (value is HashValue hv)
{
if (!hv.Value.ContainsKey(command.Value))
{
return($"No such element in database associated with key {command.Key}");
}
return(hv.Value[command.Value]);
}
return($"Type associated with key {command.Key} is not a hash-value type");
}
return("Key does not exists");
}
