public object Compress(object payload, CompressionSettings settings)
{
if (payload != null)
{
var payloadType = payload.GetType();
var payloadDescriptor = _provider.GetPayload(payloadType);
// Only compress the payload if we have a payload descriptor for it
if (payloadDescriptor != null)
{
return payloadDescriptor.Data.Select(dataDescriptor =>
{
// Recursively compress the object value until it's at a base type
return Compress(CheckNull(dataDescriptor.GetValue(payload), dataDescriptor), settings);
});
}
else
{
// At this point the payload object isn't directly a payload but may contain a payload
if (_provider.HasPayload(payloadType))
{
// We also do this part separately and special case enumerable payloads because it's more performant then
// trying to compress every item of an array no matter if its a payload or not.
var payloadList = payload as ICollection;
var compressedList = new List<object>();
payloadType = payloadType.GetEnumerableType();
payloadDescriptor = _provider.GetPayload(payloadType);
if (payloadDescriptor != null)
{
foreach (var item in payloadList)
{
compressedList.Add(Compress(item, payloadDescriptor.Settings));
}
return compressedList;
}
}
}
payload = ApplyCompressionSettings(payload, settings);
}
return payload;
}
private object ApplyCompressionSettings(object payload, CompressionSettings settings)
{
var payloadType = payload.GetType();
if (settings.RoundNumbersTo >= 0 && payloadType.CanBeRounded())
{
if (payloadType != typeof(double))
{
payload = Math.Round((decimal)payload, settings.RoundNumbersTo);
}
else
{
payload = Math.Round((double)payload, settings.RoundNumbersTo);
}
}
return payload;
}