public RedisResult <RedisRoleInfo> Role()
{
var raw = ExpectArray(RedisCommandList.Role);
if (!ReferenceEquals(raw, null))
{
var result = RedisRoleInfo.Parse(raw.Value);
return(new RedisResult <RedisRoleInfo>(result));
}
return(new RedisResult <RedisRoleInfo>(null));
}
protected virtual RedisRole DiscoverRole(RedisSocket socket)
{
if (!Disposed)
{
var role = RedisRole.Undefined;
try
{
using (var cmd = new RedisCommand(-1, RedisCommandList.Role, RedisCommandType.SendAndReceive))
{
var raw = cmd.ExpectArray(new RedisSocketContext(socket, Settings), true);
if (!ReferenceEquals(raw, null) && raw.IsCompleted)
{
var info = RedisRoleInfo.Parse(raw.Value);
if (!ReferenceEquals(info, null))
{
role = info.Role;
}
}
}
}
catch (Exception e)
{
var exception = e;
while (exception != null)
{
if (exception is SocketException)
{
return(RedisRole.Undefined);
}
var re = e as RedisException;
if (re != null && (re.ErrorCode == RedisErrorCode.ConnectionError ||
re.ErrorCode == RedisErrorCode.SocketError))
{
return(RedisRole.Undefined);
}
exception = exception.InnerException;
}
}
if (role == RedisRole.Undefined)
{
try
{
var serverInfo = GetServerInfo();
if (serverInfo != null)
{
var serverSection = serverInfo.Server;
if (serverSection != null)
{
role = (serverSection.RedisMode ?? String.Empty).Trim().ToRedisRole();
}
if (role == RedisRole.Undefined)
{
var replicationSection = serverInfo.Replication;
if (replicationSection != null)
{
role = (replicationSection.Role ?? String.Empty).Trim().ToRedisRole();
}
if (role == RedisRole.Undefined)
{
var sentinelSection = serverInfo.Sentinel;
if (sentinelSection != null && sentinelSection.SentinelMasters.HasValue)
{
role = RedisRole.Sentinel;
}
if (role == RedisRole.Undefined)
{
role = RedisRole.Master;
}
}
}
}
}
catch (Exception)
{ }
}
socket.Role = role;
return(role);
}
return(RedisRole.Undefined);
}
