public static bool TryRead(
BlittableJsonTraverser blittableJsonTraverser,
BlittableJsonReaderObject document,
StringSegment path,
out object value)
{
if (blittableJsonTraverser.TryRead(document, path, out value, out StringSegment leftPath) &&
leftPath.Length == 0)
{
value = TypeConverter.ConvertForIndexing(value);
return(true);
}
if (value == null)
{
return(false);
}
return(TryReadComputedProperties(blittableJsonTraverser, leftPath, ref value));
}
public static bool TryRead(BlittableJsonTraverser blittableJsonTraverser, Document document, StringSegment path, out object value)
{
StringSegment leftPath;
if (blittableJsonTraverser.TryRead(document.Data, path, out value, out leftPath) == false)
{
value = TypeConverter.ConvertForIndexing(value);
if (value == null)
{
return(false);
}
if (leftPath == "Length")
{
var lazyStringValue = value as LazyStringValue;
if (lazyStringValue != null)
{
value = lazyStringValue.Size;
return(true);
}
var lazyCompressedStringValue = value as LazyCompressedStringValue;
if (lazyCompressedStringValue != null)
{
value = lazyCompressedStringValue.UncompressedSize;
return(true);
}
var array = value as BlittableJsonReaderArray;
if (array != null)
{
value = array.Length;
return(true);
}
value = null;
return(false);
}
if (leftPath == "Count")
{
var array = value as BlittableJsonReaderArray;
if (array != null)
{
value = array.Length;
return(true);
}
value = null;
return(false);
}
if (value is DateTime || value is DateTimeOffset || value is TimeSpan)
{
int indexOfPropertySeparator;
do
{
indexOfPropertySeparator = leftPath.IndexOfAny(BlittableJsonTraverser.PropertySeparators, 0);
if (indexOfPropertySeparator != -1)
{
leftPath = leftPath.SubSegment(0, indexOfPropertySeparator);
}
var accessor = TypeConverter.GetPropertyAccessor(value);
value = accessor.GetValue(leftPath, value);
if (value == null)
{
return(false);
}
} while (indexOfPropertySeparator != -1);
return(true);
}
throw new InvalidOperationException($"Could not extract {path} from {document.Key}.");
}
value = TypeConverter.ConvertForIndexing(value);
return(true);
}
