public static SnowflakeId Default()
{
lock (SLock)
{
if (_snowflakeId != null)
{
return(_snowflakeId);
}
var random = new Random();
if (!int.TryParse(Environment.GetEnvironmentVariable("SNOWFLAKE_WORKERID", EnvironmentVariableTarget.Machine), out var workerId))
{
workerId = random.Next((int)MaxWorkerId);
}
if (!int.TryParse(Environment.GetEnvironmentVariable("SNOWFLAKE_DATACENTERID", EnvironmentVariableTarget.Machine), out var datacenterId))
{
datacenterId = random.Next((int)MaxDatacenterId);
}
return(_snowflakeId = new SnowflakeId(workerId, datacenterId));
}
}
public static TKey Generate <TKey>()
{
if (typeof(TKey) == typeof(Guid))
{
return((TKey)TypeDescriptor.GetConverter(typeof(TKey)).ConvertFromInvariantString(Guid.NewGuid().ToString()));
}
if (typeof(TKey) == typeof(string))
{
return((TKey)TypeDescriptor.GetConverter(typeof(TKey)).ConvertFromInvariantString(SnowflakeId.Create().ToString()));
}
if (typeof(TKey) == typeof(long))
{
return((TKey)TypeDescriptor.GetConverter(typeof(TKey)).ConvertFromInvariantString(SnowflakeId.Create().ToString()));
}
throw new NotSupportedException($"不支持此类型的id");
}