internal string Get(string name)
{
UIntPtr destSize = (UIntPtr)0;
StringBuilder sb = null;
ConfRes res = Librdkafka.conf_get(handle, name, null, ref destSize);
if (res == ConfRes.Ok)
{
sb = new StringBuilder((int)destSize);
res = Librdkafka.conf_get(handle, name, sb, ref destSize);
}
if (res != ConfRes.Ok)
{
if (res == ConfRes.Unknown)
{
throw new InvalidOperationException($"No such configuration property: {name}");
}
throw new Exception("Unknown error while getting configuration property");
}
return(sb?.ToString());
}
internal void Set(string name, string value)
{
var errorStringBuilder = new StringBuilder(Librdkafka.MaxErrorStringLength);
ConfRes res = Librdkafka.conf_set(handle, name, value,
errorStringBuilder, (UIntPtr)errorStringBuilder.Capacity);
if (res == ConfRes.Ok)
{
return;
}
else if (res == ConfRes.Invalid)
{
throw new ArgumentException(errorStringBuilder.ToString());
}
else if (res == ConfRes.Unknown)
{
throw new InvalidOperationException(errorStringBuilder.ToString());
}
else
{
throw new Exception("Unknown error while setting configuration property");
}
}
internal static void conf_set_bytes(IntPtr conf, string name, byte[] value)
{
var errorStringBuilder = new StringBuilder(MaxErrorStringLength);
IntPtr pointerToValueBytes = Marshal.AllocHGlobal(value.Length);
try
{
Marshal.Copy(value, 0, pointerToValueBytes, value.Length);
ConfRes result = _conf_set_bytes(
conf,
name,
pointerToValueBytes,
(uint)value.Length,
errorStringBuilder,
(UIntPtr)errorStringBuilder.Capacity);
switch (result)
{
case ConfRes.Ok:
return;
case ConfRes.Invalid:
case ConfRes.Unknown:
throw new InvalidOperationException(errorStringBuilder.ToString());
default:
throw new Exception(
string.Format("Unknown error while setting bytes for property \"{0}\"", name));
}
}
finally
{
Marshal.FreeHGlobal(pointerToValueBytes);
}
}
internal void Set(string name, string value)
{
// TODO: Constant instead of 512?
var errorStringBuilder = new StringBuilder(512);
ConfRes res = LibRdKafka.topic_conf_set(handle, name, value,
errorStringBuilder, (UIntPtr)errorStringBuilder.Capacity);
if (res == ConfRes.Ok)
{
return;
}
else if (res == ConfRes.Invalid)
{
throw new InvalidOperationException(errorStringBuilder.ToString());
}
else if (res == ConfRes.Unknown)
{
throw new InvalidOperationException(errorStringBuilder.ToString());
}
else
{
throw new Exception("Unknown error while setting configuration property");
}
}