private DistinctObservation NewObservation(long timestamp, DistinctObservation[] existingObservations, Exception observation)
{
DistinctObservation existingObservation = null;
if (existingObservations != _distinctObservations)
{
existingObservation = Find(_distinctObservations, observation);
}
if (existingObservation == null)
{
byte[] encodedError = Encoding.UTF8.GetBytes(observation.ToString());
int length = EncodedErrorOffset + encodedError.Length;
int offset = _nextOffset;
if ((offset + length) > _buffer.Capacity)
{
return(InsufficientSpace);
}
_buffer.PutBytes(offset + EncodedErrorOffset, encodedError);
_buffer.PutLong(offset + FirstObservationTimestampOffset, timestamp);
_nextOffset = BitUtil.Align(offset + length, RecordAlignment);
existingObservation = new DistinctObservation(observation, offset);
_distinctObservations = Prepend(_distinctObservations, existingObservation);
_buffer.PutIntOrdered(offset + LengthOffset, length);
}
return(existingObservation);
}
private static DistinctObservation[] Prepend(DistinctObservation[] observations, DistinctObservation observation)
{
int length = observations.Length;
var newObservations = new DistinctObservation[length + 1];
newObservations[0] = observation;
Array.Copy(observations, 0, newObservations, 1, length);
return(newObservations);
}
private static DistinctObservation Find(DistinctObservation[] existingObservations, Exception observation)
{
DistinctObservation existingObservation = null;
foreach (var o in existingObservations)
{
if (ExceptionEquals(o.Throwable, observation))
{
existingObservation = o;
break;
}
}
return(existingObservation);
}
private static DistinctObservation[] Prepend(DistinctObservation[] observations, DistinctObservation observation)
{
int length = observations.Length;
var newObservations = new DistinctObservation[length + 1];
newObservations[0] = observation;
Array.Copy(observations, 0, newObservations, 1, length);
return newObservations;
}
private DistinctObservation NewObservation(long timestamp, DistinctObservation[] existingObservations, Exception observation)
{
DistinctObservation existingObservation = null;
if (existingObservations != _distinctObservations)
{
existingObservation = Find(_distinctObservations, observation);
}
if (existingObservation == null)
{
byte[] encodedError = Encoding.UTF8.GetBytes(observation.ToString());
int length = EncodedErrorOffset + encodedError.Length;
int offset = _nextOffset;
if ((offset + length) > _buffer.Capacity)
{
return InsufficientSpace;
}
_buffer.PutBytes(offset + EncodedErrorOffset, encodedError);
_buffer.PutLong(offset + FirstObservationTimestampOffset, timestamp);
_nextOffset = BitUtil.Align(offset + length, RecordAlignment);
existingObservation = new DistinctObservation(observation, offset);
_distinctObservations = Prepend(_distinctObservations, existingObservation);
_buffer.PutIntOrdered(offset + LengthOffset, length);
}
return existingObservation;
}
private static DistinctObservation Find(DistinctObservation[] existingObservations, Exception observation)
{
DistinctObservation existingObservation = null;
foreach (var o in existingObservations)
{
if (ExceptionEquals(o.Throwable, observation))
{
existingObservation = o;
break;
}
}
return existingObservation;
}
