/// <summary>
/// Parse JSON into a SearchDocument.
/// </summary>
/// <param name="reader">The JSON reader.</param>
/// <param name="typeToConvert">The type to convert to.</param>
/// <param name="options">Serialization options.</param>
/// <param name="recursionDepth">
/// Depth of the current read recursion to bail out of circular
/// references.
/// </param>
/// <returns>A deserialized SearchDocument.</returns>
public static SearchDocument ReadSearchDocument(
ref Utf8JsonReader reader,
Type typeToConvert,
JsonSerializerOptions options,
int?recursionDepth = null)
{
Debug.Assert(typeToConvert != null);
Debug.Assert(typeToConvert.IsAssignableFrom(typeof(SearchDocument)));
recursionDepth ??= options.GetMaxRecursionDepth();
AssertRecursionDepth(recursionDepth.Value);
SearchDocument doc = new SearchDocument();
reader.Expects(JsonTokenType.StartObject);
while (reader.Read() && reader.TokenType != JsonTokenType.EndObject)
{
string propertyName = reader.ExpectsPropertyName();
// Ignore OData properties - we don't expose those on custom
// user schemas
if (!propertyName.StartsWith(Constants.ODataKeyPrefix, StringComparison.OrdinalIgnoreCase))
{
object value = ReadSearchDocObject(ref reader, recursionDepth.Value - 1);
doc[propertyName] = value;
}
else
{
reader.Skip();
}
}
return(doc);
// TODO: #10596 - Investigate using JsonSerializer for reading SearchDocument properties
// The built in converters for JsonSerializer are a little more
// helpful than we want right now and will do things like turn "1"
// to the integer 1 instead of a string. The number of special
// cases needed for converting dynamic documents is small enough
// that we're hard coding them here for now. We'll revisit with
// Search experts and their customer scenarios to get this right in
// the next preview.
object ReadSearchDocObject(ref Utf8JsonReader reader, int depth)
{
AssertRecursionDepth(depth);
switch (reader.TokenType)
{
case JsonTokenType.String:
case JsonTokenType.Number:
case JsonTokenType.True:
case JsonTokenType.False:
case JsonTokenType.None:
case JsonTokenType.Null:
return(ReadPrimitiveValue(ref reader));
case JsonTokenType.StartObject:
// TODO: #10592- Unify on an Azure.Core spatial type
// Return a complex object
return(ReadSearchDocument(ref reader, typeof(SearchDocument), options, depth - 1));
case JsonTokenType.StartArray:
var list = new List <object>();
while (reader.Read() && reader.TokenType != JsonTokenType.EndArray)
{
recursionDepth--;
object value = ReadSearchDocObject(ref reader, depth - 1);
list.Add(value);
}
return(list.ToArray());
default:
throw new JsonException();
}
}
}
