public bool HandlesOption(NsqConfig c, string option)
{
var typ = c.GetType();
foreach (var field in typ.GetProperties())
{
var opt = field.Get <OptAttribute>();
if (opt != null && opt.Name == option)
{
return(true);
}
}
return(false);
}
public void Validate(NsqConfig c)
{
var typ = c.GetType();
foreach (var field in typ.GetProperties())
{
MinAttribute min = field.Get <MinAttribute>();
MaxAttribute max = field.Get <MaxAttribute>();
if (min == null && max == null)
{
continue;
}
object value = field.GetValue(c, index: null);
var opt = field.Get <OptAttribute>();
if (min != null)
{
var coercedMinVal = (IComparable)opt.Coerce(min.Value, field.PropertyType);
if (coercedMinVal.CompareTo(value) == 1)
{
throw new Exception(string.Format("invalid {0} ! {1} < {2}", opt.Name, value, coercedMinVal));
}
}
if (max != null)
{
var coercedMaxVal = (IComparable)opt.Coerce(max.Value, field.PropertyType);
if (coercedMaxVal.CompareTo(value) == -1)
{
throw new Exception(string.Format("invalid {0} ! {1} > {2}", opt.Name, value, coercedMaxVal));
}
}
}
if (c.HeartbeatInterval > c.ReadTimeout)
{
throw new Exception(string.Format("HeartbeatInterval {0} must be less than ReadTimeout {1}",
c.HeartbeatInterval, c.ReadTimeout));
}
// TODO: PR go-nsq: this check was removed, seems still valid since the value can be set through code
// https://github.com/nsqio/go-nsq/commit/dd8e5fc4ad80922d884ece51f5574af3fa4f14d3#diff-b4bda758a2aef091432646c354b4dc59L376
if (c.BackoffStrategy == null)
{
throw new Exception(string.Format("BackoffStrategy cannot be null"));
}
}
public void Set(NsqConfig c, string option, object value)
{
var typ = c.GetType();
foreach (var field in typ.GetProperties())
{
var opt = field.Get <OptAttribute>();
if (opt == null || opt.Name != option)
{
continue;
}
var min = field.Get <MinAttribute>();
var max = field.Get <MaxAttribute>();
var coercedVal = opt.Coerce(value, field.PropertyType);
if (min != null)
{
var coercedMinVal = (IComparable)opt.Coerce(min.Value, field.PropertyType);
if (coercedMinVal.CompareTo(coercedVal) == 1)
{
throw new Exception(string.Format("invalid {0} ! {1} < {2}", opt.Name, coercedVal, coercedMinVal));
}
}
if (max != null)
{
var coercedMaxVal = (IComparable)opt.Coerce(max.Value, field.PropertyType);
if (coercedMaxVal.CompareTo(coercedVal) == -1)
{
throw new Exception(string.Format("invalid {0} ! {1} > {2}", opt.Name, coercedVal, coercedMaxVal));
}
}
field.SetValue(c, coercedVal, index: null);
return;
}
throw new Exception(string.Format("unknown option {0}", option));
}
public void SetDefaults(NsqConfig c)
{
Type typ = c.GetType();
foreach (var field in typ.GetProperties())
{
var opt = field.Get <OptAttribute>();
var defaultValue = field.Get <DefaultAttribute>();
if (opt == null || defaultValue == null)
{
continue;
}
c.Set(opt.Name, defaultValue.Value);
}
string hostname = OS.Hostname();
c.ClientID = hostname.Split(new[] { '.' })[0];
c.Hostname = hostname;
c.UserAgent = string.Format("{0}/{1}", ClientInfo.ClientName, ClientInfo.Version);
}