public ObjectPropertyInternal(
BinaryNavigatorNode nameNode,
BinaryNavigatorNode valueNode)
{
this.NameNode = nameNode;
this.ValueNode = valueNode;
}
/// <summary>
/// Initializes a new instance of the JsonBinaryNavigator class
/// </summary>
/// <param name="buffer">The (UTF-8) buffer to navigate.</param>
/// <param name="jsonStringDictionary">The JSON string dictionary.</param>
/// <param name="skipValidation">whether to skip validation or not.</param>
public JsonBinaryNavigator(
ReadOnlyMemory <byte> buffer,
JsonStringDictionary jsonStringDictionary,
bool skipValidation = false)
{
if (buffer.Length < 2)
{
throw new ArgumentException($"{nameof(buffer)} must have at least two byte.");
}
if (buffer.Span[0] != (byte)JsonSerializationFormat.Binary)
{
throw new ArgumentNullException("buffer must be binary encoded.");
}
// offset for the 0x80 (128) binary serialization type marker.
buffer = buffer.Slice(1);
// Only navigate the outer most json value and trim off trailing bytes
int jsonValueLength = JsonBinaryEncoding.GetValueLength(buffer.Span);
if (buffer.Length < jsonValueLength)
{
throw new ArgumentException("buffer is shorter than the length prefix.");
}
buffer = buffer.Slice(0, jsonValueLength);
this.buffer = buffer;
this.jsonStringDictionary = jsonStringDictionary;
this.rootNode = new BinaryNavigatorNode(this.buffer, NodeTypes.GetNodeType(this.buffer.Span[0]));
}
private IEnumerable <BinaryNavigatorNode> GetArrayItemsInternal(ReadOnlyMemory <byte> buffer)
{
byte typeMarker = buffer.Span[0];
int firstArrayItemOffset = JsonBinaryEncoding.GetFirstValueOffset(typeMarker);
int arrayLength = JsonBinaryEncoding.GetValueLength(buffer.Span);
// Scope to just the array
buffer = buffer.Slice(0, (int)arrayLength);
// Seek to the first array item
buffer = buffer.Slice(firstArrayItemOffset);
while (buffer.Length != 0)
{
int arrayItemLength = JsonBinaryEncoding.GetValueLength(buffer.Span);
if (arrayItemLength > buffer.Length)
{
// Array Item got cut off.
throw new JsonInvalidTokenException();
}
// Create a buffer for that array item
BinaryNavigatorNode arrayItem = new BinaryNavigatorNode(
buffer.Slice(0, arrayItemLength),
NodeTypes.GetNodeType(buffer.Span[0]));
yield return(arrayItem);
// Slice off the array item
buffer = buffer.Slice(arrayItemLength);
}
}
private static bool IsStringOrNested(BinaryNavigatorNode binaryNavigatorNode)
{
switch (binaryNavigatorNode.JsonNodeType)
{
case JsonNodeType.String:
case JsonNodeType.FieldName:
case JsonNodeType.Array:
case JsonNodeType.Object:
return(true);
default:
return(false);
}
}
private bool TryGetBufferedRawJsonInternal(
BinaryNavigatorNode binaryNavigatorNode,
out ReadOnlyMemory <byte> bufferedRawJson)
{
if ((this.jsonStringDictionary != null) && JsonBinaryNavigator.IsStringOrNested(binaryNavigatorNode))
{
// Force a rewrite for dictionary encoding.
bufferedRawJson = default;
return(false);
}
ReadOnlyMemory <byte> buffer = binaryNavigatorNode.Buffer;
if (buffer.Length == 0)
{
throw new ArgumentException($"Node must not be empty.");
}
bufferedRawJson = buffer;
return(true);
}
private void WriteToInternal(BinaryNavigatorNode binaryNavigatorNode, IJsonWriter jsonWriter)
{
ReadOnlyMemory <byte> buffer = binaryNavigatorNode.Buffer;
JsonNodeType nodeType = binaryNavigatorNode.JsonNodeType;
switch (nodeType)
{
case JsonNodeType.Null:
jsonWriter.WriteNullValue();
break;
case JsonNodeType.False:
jsonWriter.WriteBoolValue(false);
break;
case JsonNodeType.True:
jsonWriter.WriteBoolValue(true);
break;
case JsonNodeType.Number64:
{
Number64 value = JsonBinaryEncoding.GetNumberValue(buffer.Span);
jsonWriter.WriteNumber64Value(value);
}
break;
case JsonNodeType.String:
case JsonNodeType.FieldName:
bool fieldName = binaryNavigatorNode.JsonNodeType == JsonNodeType.FieldName;
if (JsonBinaryEncoding.TryGetBufferedStringValue(
this.rootBuffer,
buffer,
out Utf8Memory bufferedStringValue))
{
if (fieldName)
{
jsonWriter.WriteFieldName(bufferedStringValue.Span);
}
else
{
jsonWriter.WriteStringValue(bufferedStringValue.Span);
}
}
else
{
string value = JsonBinaryEncoding.GetStringValue(
this.rootBuffer,
buffer);
if (fieldName)
{
jsonWriter.WriteFieldName(value);
}
else
{
jsonWriter.WriteStringValue(value);
}
}
break;
case JsonNodeType.Array:
{
jsonWriter.WriteArrayStart();
foreach (BinaryNavigatorNode arrayItem in this.GetArrayItemsInternal(buffer))
{
this.WriteToInternal(arrayItem, jsonWriter);
}
jsonWriter.WriteArrayEnd();
}
break;
case JsonNodeType.Object:
{
jsonWriter.WriteObjectStart();
foreach (ObjectPropertyInternal objectProperty in this.GetObjectPropertiesInternal(buffer))
{
this.WriteToInternal(objectProperty.NameNode, jsonWriter);
this.WriteToInternal(objectProperty.ValueNode, jsonWriter);
}
jsonWriter.WriteObjectEnd();
}
break;
case JsonNodeType.Int8:
{
sbyte value = JsonBinaryEncoding.GetInt8Value(buffer.Span);
jsonWriter.WriteInt8Value(value);
}
break;
case JsonNodeType.Int16:
{
short value = JsonBinaryEncoding.GetInt16Value(buffer.Span);
jsonWriter.WriteInt16Value(value);
}
break;
case JsonNodeType.Int32:
{
int value = JsonBinaryEncoding.GetInt32Value(buffer.Span);
jsonWriter.WriteInt32Value(value);
}
break;
case JsonNodeType.Int64:
{
long value = JsonBinaryEncoding.GetInt64Value(buffer.Span);
jsonWriter.WriteInt64Value(value);
}
break;
case JsonNodeType.UInt32:
{
uint value = JsonBinaryEncoding.GetUInt32Value(buffer.Span);
jsonWriter.WriteUInt32Value(value);
}
break;
case JsonNodeType.Float32:
{
float value = JsonBinaryEncoding.GetFloat32Value(buffer.Span);
jsonWriter.WriteFloat32Value(value);
}
break;
case JsonNodeType.Float64:
{
double value = JsonBinaryEncoding.GetFloat64Value(buffer.Span);
jsonWriter.WriteFloat64Value(value);
}
break;
case JsonNodeType.Binary:
{
ReadOnlyMemory <byte> value = JsonBinaryEncoding.GetBinaryValue(buffer);
jsonWriter.WriteBinaryValue(value.Span);
}
break;
case JsonNodeType.Guid:
{
Guid value = JsonBinaryEncoding.GetGuidValue(buffer.Span);
jsonWriter.WriteGuidValue(value);
}
break;
default:
throw new ArgumentOutOfRangeException($"Unknown {nameof(JsonNodeType)}: {nodeType}.");
}
}
private void WriteToInternal(BinaryNavigatorNode binaryNavigatorNode, IJsonWriter jsonWriter, bool sameEncoding)
{
ReadOnlyMemory <byte> buffer = binaryNavigatorNode.Buffer;
JsonNodeType nodeType = binaryNavigatorNode.JsonNodeType;
if (sameEncoding && this.TryGetBufferedRawJsonInternal(binaryNavigatorNode, out ReadOnlyMemory <byte> bufferedRawJson))
{
// Token type doesn't make any difference other than whether it's a value or field name
JsonTokenType tokenType = nodeType == JsonNodeType.FieldName ? JsonTokenType.FieldName : JsonTokenType.String;
jsonWriter.WriteRawJsonToken(tokenType, bufferedRawJson.Span);
return;
}
switch (nodeType)
{
case JsonNodeType.Null:
jsonWriter.WriteNullValue();
break;
case JsonNodeType.False:
jsonWriter.WriteBoolValue(false);
break;
case JsonNodeType.True:
jsonWriter.WriteBoolValue(true);
break;
case JsonNodeType.Number64:
{
Number64 value = JsonBinaryEncoding.GetNumberValue(buffer.Span);
jsonWriter.WriteNumber64Value(value);
}
break;
case JsonNodeType.String:
case JsonNodeType.FieldName:
bool fieldName = binaryNavigatorNode.JsonNodeType == JsonNodeType.FieldName;
Utf8Memory utf8Buffer = Utf8Memory.UnsafeCreateNoValidation(buffer);
if (JsonBinaryEncoding.TryGetBufferedStringValue(
utf8Buffer,
this.jsonStringDictionary,
out Utf8Memory bufferedStringValue))
{
if (fieldName)
{
jsonWriter.WriteFieldName(bufferedStringValue.Span);
}
else
{
jsonWriter.WriteStringValue(bufferedStringValue.Span);
}
}
else
{
string value = JsonBinaryEncoding.GetStringValue(
utf8Buffer,
this.jsonStringDictionary);
if (fieldName)
{
jsonWriter.WriteFieldName(value);
}
else
{
jsonWriter.WriteStringValue(value);
}
}
break;
case JsonNodeType.Array:
{
jsonWriter.WriteArrayStart();
foreach (BinaryNavigatorNode arrayItem in this.GetArrayItemsInternal(buffer))
{
this.WriteToInternal(arrayItem, jsonWriter, sameEncoding);
}
jsonWriter.WriteArrayEnd();
}
break;
case JsonNodeType.Object:
{
jsonWriter.WriteObjectStart();
foreach (ObjectPropertyInternal objectProperty in this.GetObjectPropertiesInternal(buffer))
{
this.WriteToInternal(objectProperty.NameNode, jsonWriter, sameEncoding);
this.WriteToInternal(objectProperty.ValueNode, jsonWriter, sameEncoding);
}
jsonWriter.WriteObjectEnd();
}
break;
case JsonNodeType.Int8:
{
sbyte value = JsonBinaryEncoding.GetInt8Value(buffer.Span);
jsonWriter.WriteInt8Value(value);
}
break;
case JsonNodeType.Int16:
{
short value = JsonBinaryEncoding.GetInt16Value(buffer.Span);
jsonWriter.WriteInt16Value(value);
}
break;
case JsonNodeType.Int32:
{
int value = JsonBinaryEncoding.GetInt32Value(buffer.Span);
jsonWriter.WriteInt32Value(value);
}
break;
case JsonNodeType.Int64:
{
long value = JsonBinaryEncoding.GetInt64Value(buffer.Span);
jsonWriter.WriteInt64Value(value);
}
break;
case JsonNodeType.UInt32:
{
uint value = JsonBinaryEncoding.GetUInt32Value(buffer.Span);
jsonWriter.WriteUInt32Value(value);
}
break;
case JsonNodeType.Float32:
{
float value = JsonBinaryEncoding.GetFloat32Value(buffer.Span);
jsonWriter.WriteFloat32Value(value);
}
break;
case JsonNodeType.Float64:
{
double value = JsonBinaryEncoding.GetFloat64Value(buffer.Span);
jsonWriter.WriteFloat64Value(value);
}
break;
case JsonNodeType.Binary:
{
ReadOnlyMemory <byte> value = JsonBinaryEncoding.GetBinaryValue(buffer);
jsonWriter.WriteBinaryValue(value.Span);
}
break;
case JsonNodeType.Guid:
{
Guid value = JsonBinaryEncoding.GetGuidValue(buffer.Span);
jsonWriter.WriteGuidValue(value);
}
break;
default:
throw new ArgumentOutOfRangeException($"Unknown {nameof(JsonNodeType)}: {nodeType}.");
}
}
