public override async Task InitializeAsync(CancellationToken cancellationToken = default)
{
if (_rows != null)
{
throw new InvalidOperationException("Cannot initialize more than once.");
}
if (ResponseStream != null)
{
var body = await _deserializer.DeserializeAsync <ViewResultData>(ResponseStream, cancellationToken).ConfigureAwait(false);
MetaData = new ViewMetaData
{
TotalRows = body.total_rows
};
_rows = body.rows?.Select(p => new ViewRow <TKey, TValue>
{
Id = p.id,
Key = p.key,
Value = p.value
}) ?? Enumerable.Empty <IViewRow <TKey, TValue> >();
}
else
{
_rows = Enumerable.Empty <IViewRow <TKey, TValue> >();
}
DecodeSpan?.Finish();
}
private async Task ReadResponseAttributes(CancellationToken cancellationToken)
{
if (_reader == null)
{
// Should not be possible
throw new InvalidOperationException("_reader is null");
}
if (MetaData == null)
{
MetaData = new ViewMetaData();
}
while (true)
{
var path = await _reader.ReadToNextAttributeAsync(cancellationToken).ConfigureAwait(false);
if (path == null)
{
// End of stream
break;
}
if (path == "total_rows" && _reader.Value != null && _reader.ValueType == typeof(long))
{
MetaData.TotalRows = (uint)(long)_reader.Value;
}
else if (path == "rows")
{
// we've reached the 'rows' element, return now so when we enumerate we start from here
_hasReadToRows = true;
return;
}
}
// if we got here, there was no 'rows' element in the stream
_hasFinishedReading = true;
}