static IEnumerable <NodeType> StepNodes(string json)
{
using (var tokenizer = new JsonTokenizer(Allocator.TempJob))
using (var parser = new NodeParser(tokenizer, Allocator.TempJob))
{
// Tokenize the entire input data.
Write(tokenizer, json);
// Read until we have no more input.
while (parser.TokenNextIndex < tokenizer.TokenNextIndex)
{
var node = parser.Step();
if (node == NodeType.None)
{
continue;
}
yield return(node);
}
// Flush the parser.
while (parser.NodeType != NodeType.None)
{
yield return(parser.Step());
}
}
}
private async Task <IList <object> > ProduceJsonArrayAsync(JsonTokenizer tokenizer, int depth, JsonTokenBuffer tokenTailBuffer, ObjectTailBuffer nodeTailBuffer)
{
TokenType lsq;
if (TracingEnabled)
{
JsonToken t = NextAndGetToken(tokenizer, tokenTailBuffer, nodeTailBuffer); // pop the leading [.
tokenTailBuffer.Push(t);
lsq = t.Type;
}
else
{
lsq = NextAndGetType(tokenizer, tokenTailBuffer, nodeTailBuffer);
}
if (lsq != TokenType.LSQUARE)
{
// this cannot happen.
throw new InvalidJsonTokenException("JSON array should start with [. " + tokenTailBuffer.ToTraceString(), GetTailCharStream(tokenizer), PeekCharStream(tokenizer));
}
IList <object> list = new List <object>();
var type = PeekAndGetType(tokenizer, tokenTailBuffer, nodeTailBuffer);
if (type == TokenType.RSQUARE)
{
// empty array
JsonToken t = tokenizer.Next(); // discard the trailing ].
if (TracingEnabled)
{
tokenTailBuffer.Push(t);
}
}
else
{
IList <object> elements = await ProduceJsonArrayElementsAsync(tokenizer, depth, tokenTailBuffer, nodeTailBuffer);
var rsq = NextAndGetType(tokenizer, tokenTailBuffer, nodeTailBuffer); // discard the trailing ].
if (rsq == TokenType.RSQUARE)
{
// Done
((List <object>)list).AddRange(elements);
}
else
{
// ???
throw new InvalidJsonTokenException("JSON array should end with ]. " + tokenTailBuffer.ToTraceString(), GetTailCharStream(tokenizer), PeekCharStream(tokenizer));
}
}
IList <object> jArray = jsonTypeFactory.CreateArray(list);
if (TracingEnabled)
{
nodeTailBuffer.Push(jArray);
}
//if (log.IsLoggable(Level.FINE)) {
// log.fine("jArray = " + jArray);
//}
return(jArray);
}
static IEnumerable <NodeType> StepNodes(IEnumerable <string> parts)
{
using (var tokenizer = new JsonTokenizer(Allocator.TempJob))
using (var parser = new NodeParser(tokenizer, Allocator.TempJob))
{
foreach (var json in parts)
{
// Tokenize a part of the input data.
Write(tokenizer, json);
// Read until we consume all input data.
while (parser.TokenNextIndex < tokenizer.TokenNextIndex)
{
var node = parser.Step();
if (node == NodeType.None)
{
continue;
}
yield return(node);
}
}
// Flush the parser.
while (parser.NodeType != NodeType.None)
{
yield return(parser.Step());
}
}
}
/// <summary>
/// Deserializes the payload using the JsonParser, then converts the resulting clr objects into payload element form
/// Throws an TaupoInvalidOperationException if the json does not evaluate successfully.
/// </summary>
/// <param name="serialized">A raw json payload</param>
/// <param name="payloadContext">Additional payload information to aid deserialization</param>
/// <returns>A PayloadElement representation of the payload</returns>
public ODataPayloadElement DeserializeFromBinary(byte[] serialized, ODataPayloadContext payloadContext)
{
ExceptionUtilities.CheckArgumentNotNull(serialized, "serialized");
ExceptionUtilities.CheckArgumentNotNull(payloadContext, "payloadContext");
string encodingName = payloadContext.EncodingName;
ODataPayloadElement errorPayload = null;
if (this.payloadErrorDeserializer.TryDeserializeErrorPayload(serialized, encodingName, out errorPayload))
{
return(errorPayload);
}
// Evaluate the given JSON text
Encoding encoding = HttpUtilities.GetEncodingOrDefault(encodingName);
string payload = encoding.GetString(serialized, 0, serialized.Length);
JsonValue jsonData = null;
using (StringReader reader = new StringReader(payload))
{
JsonTokenizer tokenizer = new JsonTokenizer(reader);
JsonParser parser = new JsonParser(tokenizer);
jsonData = parser.ParseValue();
}
// convert the deserialized JsonValue objects into payload elements
return(this.payloadConverter.ConvertToPayloadElement(jsonData));
}
public unsafe void PerformanceTest_JsonTokenizer_WriteWithStandardValidation_MockEntities(int count, int initialTokenBuffer)
{
var json = JsonTestData.GetMockEntities(count);
Measure.Method(() =>
{
fixed(char *ptr = json)
{
using (var tokenizer = new JsonTokenizer(initialTokenBuffer, JsonValidationType.Standard)
{
AllowTokenBufferResize = true
})
{
tokenizer.Write(new UnsafeBuffer <char> {
Buffer = ptr, Length = json.Length
}, 0, json.Length);
}
}
})
.Definition("JsonTokenizerWrite")
.WarmupCount(1)
.MeasurementCount(100)
.Run();
PerformanceTest.Active.CalculateStatisticalValues();
var size = json.Length / (double)1024 / 1024;
Debug.Log($"MB/s=[{size / (PerformanceTest.Active.SampleGroups.First().Median / 1000)}]");
}
private static void TestTokenizedValue(byte[] data, TokenType tokenType, string tokenData)
{
var tokeniser = new JsonTokenizer(data);
TestStep(tokeniser, tokenType, tokenData);
TestStep(tokeniser, TokenType.End, "");
}
/// <summary>
/// Parses the specified text reader content into a <see cref="JsonValue"/>
/// </summary>
/// <param name="reader">The reader to read.</param>
/// <returns>The <see cref="JsonValue"/> read from the reader.</returns>
public static JsonValue ParseValue(TextReader reader)
{
var tokenizer = new JsonTokenizer(reader);
var parser = new JsonTextPreservingParser(tokenizer);
return(parser.ParseValueOrProperty());
}
private static dynamic ReadJson(HttpWebResponse response)
{
using (response)
{
return(JsonTokenizer.Parse(Read(response)));
}
}
public void Dispose()
{
_tokenizer.Dispose();
_tokenizer = null !;
Current = null !;
}
private IList <object> ProduceJsonArrayElements(JsonTokenizer tokenizer, JsonTokenBuffer tokenTailBuffer, ObjectTailBuffer nodeTailBuffer)
{
IList <object> elements = new List <object>();
var type = PeekAndGetType(tokenizer, tokenTailBuffer, nodeTailBuffer);
while (type != TokenType.RSQUARE)
{
object element = ProduceJsonArrayElement(tokenizer, tokenTailBuffer, nodeTailBuffer);
if (element != null)
{
elements.Add(element);
}
type = PeekAndGetType(tokenizer, tokenTailBuffer, nodeTailBuffer);
// "consume" the comma.
if (parserPolicy.AllowExtraCommas)
{
while (type == TokenType.COMMA)
{
JsonToken t = tokenizer.Next();
if (TracingEnabled)
{
tokenTailBuffer.Push(t);
}
type = PeekAndGetType(tokenizer, tokenTailBuffer, nodeTailBuffer);
}
}
else
{
if (type == TokenType.COMMA)
{
JsonToken t = tokenizer.Next();
if (TracingEnabled)
{
tokenTailBuffer.Push(t);
}
type = PeekAndGetType(tokenizer, tokenTailBuffer, nodeTailBuffer);
if (parserPolicy.AllowTrailingComma)
{
// Continue.
}
else
{
// Invalid char sequence: ",]"
if (type == TokenType.RSQUARE)
{
throw new InvalidJsonTokenException("Syntax error: Array has a trailing comma. " + tokenTailBuffer.ToTraceString(), GetTailCharStream(tokenizer), PeekCharStream(tokenizer));
}
}
}
}
}
//if (log.isLoggable(Level.FINER)) {
// log.finer("elements = " + elements);
//}
return(elements);
}
public override ODataPayloadElement Visit(PrimitiveValue payloadElement)
{
var rawText = payloadElement.Annotations.OfType <RawTextPayloadElementRepresentationAnnotation>().Select(r => r.Text).SingleOrDefault();
var dataType = payloadElement.Annotations.OfType <DataTypeAnnotation>().Select(d => d.DataType).OfType <PrimitiveDataType>().SingleOrDefault();
if (rawText != null && dataType != null)
{
using (var reader = new StringReader(rawText))
{
var tokenizer = new JsonTokenizer(reader);
var parsed = tokenizer.Value;
if (tokenizer.TokenType == JsonTokenType.String)
{
var clrType = dataType.GetFacetValue <PrimitiveClrTypeFacet, Type>(null);
if (this.converter.TryConvertFromString((string)parsed, clrType, out parsed))
{
return(payloadElement.ReplaceWith(new PrimitiveValue(payloadElement.FullTypeName, parsed)));
}
}
}
}
return(base.Visit(payloadElement));
}
static void CheckEndOfExpression(JsonTokenizer tokenizer)
{
if (tokenizer.TryReadNext())
{
ThrowUnexpected(tokenizer);
}
}
private string ProduceJsonString(JsonTokenizer tokenizer, JsonTokenBuffer tokenTailBuffer, ObjectTailBuffer nodeTailBuffer)
{
string jString = null;
try {
JsonToken t = tokenizer.Next();
// log.warning(">>>>>>>>>>>>>>>>>>>>>>>>>>>>> t = " + t);
if (TracingEnabled)
{
tokenTailBuffer.Push(t);
}
string value = (string)t.Value;
// log.warning(">>>>>>>>>>>>>>>>>>>>>>>>>>>>> value = " + value);
jString = (string)jsonTypeFactory.CreateString(value);
// log.warning(">>>>>>>>>>>>>>>>>>>>>>>>>>>>> jString = " + jString);
} catch (Exception e) {
throw new UnknownParserException("Failed to create a String node. " + tokenTailBuffer.ToTraceString(), e, GetTailCharStream(tokenizer), PeekCharStream(tokenizer));
}
if (TracingEnabled)
{
// ???
nodeTailBuffer.Push(jString);
}
return(jString);
}
JsonNode ParseArray(JsonTokenizer tokenizer)
{
var res = new JsonNode();
res.MakeArray();
bool needSep = false;
while (true)
{
tokenizer.ReadNext();
if (tokenizer.SpecialChar == ']')
{
return(res);
}
if (needSep)
{
if (tokenizer.SpecialChar != ',')
{
throw new JsonException("Separator expected");
}
tokenizer.ReadNext();
}
JsonNode value = ParseValue(tokenizer);
res.m_Array.Add(value);
value.AssignParent(res);
needSep = true;
}
}
public static JsonData Parse(string json)
{
_buffer ??= new StringBuilder(200);
using var tokenizer = new JsonTokenizer(json, _buffer);
return(Parse(tokenizer));
}
public static JsonData Parse(Stream stream, Encoding?encoding = null)
{
_buffer ??= new StringBuilder(200);
using var tokenizer = new JsonTokenizer(new JsonReader(stream, encoding), _buffer);
return(Parse(tokenizer));
}
public TElement[] Deserialize(ref JsonTokenizer tokenizer)
{
var buffer = new LocalList <TElement>();
while (tokenizer.MoveNext())
{
var token = tokenizer.Current;
var tokenType = token.TokenType;
// ReSharper disable once ConvertIfStatementToSwitchStatement
if (tokenType == JsonTokenType.Null)
{
return(null);
}
if (tokenType == JsonTokenType.ArrayStart)
{
continue;
}
if (tokenType == JsonTokenType.ArrayEnd)
{
break;
}
var element = _elementConverter.Deserialize(ref tokenizer);
buffer.Add(element);
}
return(buffer.ToArray());
}
public void ParsingComplexJsonObject_Works()
{
// arrange
string json = File.ReadAllText("complexJsonObject.json");
JsonTokenizer sut = new JsonTokenizer();
// act & assert
// root object
AssertTokenType(json, sut, JsonTokenTypeEnum.StartObject);
AssertPropertyName(json, sut, "Name");
AssertPropertyValue(json, sut, "Foo");
AssertPropertyName(json, sut, "Age");
AssertPropertyValue(json, sut, "123");
AssertPropertyName(json, sut, "IsHuman");
AssertPropertyValue(json, sut, "false");
// tags array
AssertPropertyName(json, sut, "Tags");
AssertTokenType(json, sut, JsonTokenTypeEnum.StartArray);
AssertPropertyName(json, sut, "robot");
AssertPropertyName(json, sut, "ai");
AssertPropertyName(json, sut, "replicator");
AssertPropertyName(json, sut, "42");
AssertTokenType(json, sut, JsonTokenTypeEnum.EndArray);
// inventory object
AssertPropertyName(json, sut, "Inventory");
AssertTokenType(json, sut, JsonTokenTypeEnum.StartObject);
AssertPropertyName(json, sut, "Slots");
AssertPropertyValue(json, sut, "10");
AssertPropertyName(json, sut, "Weight");
AssertPropertyValue(json, sut, "1.7");
// items array
AssertPropertyName(json, sut, "Items");
AssertTokenType(json, sut, JsonTokenTypeEnum.StartArray);
// inventory item
AssertTokenType(json, sut, JsonTokenTypeEnum.StartObject);
AssertPropertyName(json, sut, "Name");
AssertPropertyValue(json, sut, "Burner");
AssertTokenType(json, sut, JsonTokenTypeEnum.EndObject);
// inventory item
AssertTokenType(json, sut, JsonTokenTypeEnum.StartObject);
AssertPropertyName(json, sut, "Name");
AssertPropertyValue(json, sut, "Lightsaber");
AssertTokenType(json, sut, JsonTokenTypeEnum.EndObject);
AssertTokenType(json, sut, JsonTokenTypeEnum.EndArray);
AssertTokenType(json, sut, JsonTokenTypeEnum.EndObject);
AssertTokenType(json, sut, JsonTokenTypeEnum.EndObject);
}
protected internal virtual void DisableTracing(JsonTokenizer tokenizer)
{
tracingEnabled = false;
if (tokenizer != null && tokenizer is TraceableJsonTokenizer)
{
((TraceableJsonTokenizer)tokenizer).DisableTracing();
}
}
public virtual void DisableLookAheadParsing(JsonTokenizer tokenizer)
{
this.lookAheadParsing = false;
if (tokenizer != null && tokenizer is LookAheadJsonTokenizer)
{
((LookAheadJsonTokenizer)tokenizer).DisableLookAheadParsing();
}
}
public IEnumerable <TEntity> GetEntities(IEntitySourceContext <TEntity> context)
{
var tokenizer = new JsonTokenizer(GetReader());
tokenizer.Skip(JsonTokenType.ArrayStart);
return(new Enumerator(_converters, _descriptions, tokenizer));
}
public void NextAfterEndDocumentThrows()
{
var tokenizer = JsonTokenizer.FromTextReader(new StringReader("null"));
Assert.Equal(JsonToken.Null, tokenizer.Next());
Assert.Equal(JsonToken.EndDocument, tokenizer.Next());
Assert.Throws <InvalidOperationException>(() => tokenizer.Next());
}
public virtual void EnableLookAheadParsing(JsonTokenizer tokenizer)
{
this.lookAheadParsing = true;
if (tokenizer != null && tokenizer is LookAheadJsonTokenizer)
{
((LookAheadJsonTokenizer)tokenizer).EnableLookAheadParsing();
}
}
protected TElement DeserializeElement(JsonTokenizer tokenizer)
{
var token = tokenizer.Current;
var tokenType = token.TokenType;
return(tokenType != JsonTokenType.Null
? _elementConverter.Deserialize(tokenizer)
: default !);
public static JsonData VisitProperty(JsonTokenizer tokenizer, out string propertyName)
{
var property = tokenizer.Current.GetNotNullPropertyName();
tokenizer.MoveNext();
propertyName = property !;
return(Visit(tokenizer));
}
static void ThrowUnexpected(JsonTokenizer tokenizer)
{
if (tokenizer.HasSpecialChar)
{
throw new JsonException("Unexpected special character: " + tokenizer.SpecialChar.ToString());
}
throw new JsonException((tokenizer.TokenIsString ? "Unexpected string: " : "Unexpected token: ") + tokenizer.Token);
}
public void SkipValue(string json)
{
var tokenizer = JsonTokenizer.FromTextReader(new StringReader(json.Replace('\'', '"')));
Assert.Equal(JsonToken.StartObject, tokenizer.Next());
Assert.Equal("skip", tokenizer.Next().StringValue);
tokenizer.SkipValue();
Assert.Equal("next", tokenizer.Next().StringValue);
}
private JsonToken NextAndGetToken(JsonTokenizer tokenizer, JsonTokenBuffer tokenTailBuffer, ObjectTailBuffer nodeTailBuffer)
{
JsonToken s = tokenizer.Next();
if (s == null)
{
throw new UnknownParserException("Failed to get the next json token. " + tokenTailBuffer.ToTraceString(), GetTailCharStream(tokenizer), PeekCharStream(tokenizer));
}
return(s);
}
static void Write(JsonTokenizer tokenizer, string json)
{
unsafe
{
fixed(char *ptr = json)
{
tokenizer.Write(new UnsafeBuffer <char>(ptr, json.Length), 0, json.Length);
}
}
}
public TNullable?Deserialize(ref JsonTokenizer tokenizer)
{
var token = tokenizer.Current;
if (token.TokenType == JsonTokenType.Null)
{
return(null);
}
return(_valueConverter.Deserialize(ref tokenizer));
}