public void WriteObjectEnd()
{
var currentState = _continuationState.Pop();
long start = 0;
start = _writer.Position;
switch (currentState.State)
{
case ContinuationState.ReadPropertyName:
case ContinuationState.ReadPropertyValue:
{
_writeToken = _writer.WriteObjectMetadata(currentState.Properties, currentState.FirstWrite,
currentState.MaxPropertyId);
// here we know that the last itme in the stack is the keep the last ReadObjectDocument
if (_continuationState.Count > 1)
{
var outerState = _continuationState.Pop();
if (outerState.State == ContinuationState.ReadArray)
{
outerState.Types.Add(_writeToken.WrittenToken);
outerState.Positions.Add(_writeToken.ValuePos);
}
else
{
outerState.Properties.Add(new PropertyTag(
type: (byte)_writeToken.WrittenToken,
property: outerState.CurrentProperty,
position: _writeToken.ValuePos
));
}
if (outerState.FirstWrite == -1)
{
outerState.FirstWrite = start;
}
_continuationState.Push(outerState);
}
}
break;
case ContinuationState.ReadArray:
{
_writeToken = _writer.WriteObjectMetadata(currentState.Properties, currentState.FirstWrite,
currentState.MaxPropertyId);
if (_continuationState.Count > 1)
{
var outerState = _continuationState.Count > 0 ? _continuationState.Pop() : currentState;
if (outerState.FirstWrite == -1)
{
outerState.FirstWrite = start;
}
_continuationState.Push(outerState);
}
currentState.Types.Add(_writeToken.WrittenToken);
currentState.Positions.Add(_writeToken.ValuePos);
_continuationState.Push(currentState);
}
break;
case ContinuationState.ReadObjectDocument:
{
currentState.Properties.Add(new PropertyTag
{
Position = _writeToken.ValuePos,
Type = (byte)_writeToken.WrittenToken,
Property = currentState.CurrentProperty
});
if (currentState.FirstWrite == -1)
{
currentState.FirstWrite = start;
}
_writeToken = _writer.WriteObjectMetadata(currentState.Properties, currentState.FirstWrite,
currentState.MaxPropertyId);
}
break;
default:
ThrowIllegalStateException(currentState.State, "ReadEndObject");
break;
}
}
private bool ReadInternal <TWriteStrategy>() where TWriteStrategy : IWriteStrategy
{
var continuationState = _continuationState;
var currentState = continuationState.Pop();
var reader = _reader;
var state = _state;
while (true)
{
switch (currentState.State)
{
case ContinuationState.ReadObjectDocument:
if (reader.Read() == false)
{
continuationState.Push(currentState);
goto ReturnFalse;
}
currentState.State = ContinuationState.ReadObject;
continue;
case ContinuationState.ReadArrayDocument:
if (reader.Read() == false)
{
continuationState.Push(currentState);
goto ReturnFalse;
}
var fakeProperty = _context.CachedProperties.GetProperty(_fakeFieldName);
currentState.CurrentProperty = fakeProperty;
currentState.MaxPropertyId = fakeProperty.PropertyId;
currentState.FirstWrite = _writer.Position;
currentState.Properties = _propertiesCache.Allocate();
currentState.Properties.Add(new PropertyTag {
Property = fakeProperty
});
currentState.State = ContinuationState.CompleteDocumentArray;
continuationState.Push(currentState);
currentState = new BuildingState(ContinuationState.ReadArray);
continue;
case ContinuationState.CompleteDocumentArray:
currentState.Properties[0] = new PropertyTag(
type: (byte)_writeToken.WrittenToken,
property: currentState.Properties[0].Property,
position: _writeToken.ValuePos
);
// Register property position, name id (PropertyId) and type (object type and metadata)
_writeToken = _writer.WriteObjectMetadata(currentState.Properties, currentState.FirstWrite, currentState.MaxPropertyId);
goto ReturnTrue;
case ContinuationState.ReadObject:
if (state.CurrentTokenType == JsonParserToken.StartObject)
{
currentState.State = ContinuationState.ReadPropertyName;
currentState.Properties = _propertiesCache.Allocate();
currentState.FirstWrite = _writer.Position;
continue;
}
goto ErrorExpectedStartOfObject;
case ContinuationState.ReadArray:
if (state.CurrentTokenType == JsonParserToken.StartArray)
{
currentState.Types = _tokensCache.Allocate();
currentState.Positions = _positionsCache.Allocate();
currentState.State = ContinuationState.ReadArrayValue;
continue;
}
goto ErrorExpectedStartOfArray;
case ContinuationState.ReadArrayValue:
if (reader.Read() == false)
{
continuationState.Push(currentState);
goto ReturnFalse;
}
if (state.CurrentTokenType == JsonParserToken.EndArray)
{
currentState.State = ContinuationState.CompleteArray;
continue;
}
currentState.State = ContinuationState.CompleteArrayValue;
continuationState.Push(currentState);
currentState = new BuildingState(ContinuationState.ReadValue);
continue;
case ContinuationState.CompleteArrayValue:
currentState.Types.Add(_writeToken.WrittenToken);
currentState.Positions.Add(_writeToken.ValuePos);
currentState.State = ContinuationState.ReadArrayValue;
continue;
case ContinuationState.CompleteArray:
var arrayToken = BlittableJsonToken.StartArray;
var arrayInfoStart = _writer.WriteArrayMetadata(currentState.Positions, currentState.Types, ref arrayToken);
_writeToken = new WriteToken(arrayInfoStart, arrayToken);
currentState = continuationState.Pop();
continue;
case ContinuationState.ReadPropertyName:
if (ReadMaybeModifiedPropertyName() == false)
{
continuationState.Push(currentState);
goto ReturnFalse;
}
if (state.CurrentTokenType == JsonParserToken.EndObject)
{
_modifier?.EndObject();
_writeToken = _writer.WriteObjectMetadata(currentState.Properties, currentState.FirstWrite, currentState.MaxPropertyId);
if (continuationState.Count == 0)
{
goto ReturnTrue;
}
currentState = continuationState.Pop();
continue;
}
if (state.CurrentTokenType != JsonParserToken.String)
{
goto ErrorExpectedProperty;
}
var property = CreateLazyStringValueFromParserState();
currentState.CurrentProperty = _context.CachedProperties.GetProperty(property);
currentState.MaxPropertyId = Math.Max(currentState.MaxPropertyId, currentState.CurrentProperty.PropertyId);
currentState.State = ContinuationState.ReadPropertyValue;
continue;
case ContinuationState.ReadPropertyValue:
if (reader.Read() == false)
{
continuationState.Push(currentState);
goto ReturnFalse;
}
currentState.State = ContinuationState.CompleteReadingPropertyValue;
continuationState.Push(currentState);
currentState = new BuildingState(ContinuationState.ReadValue);
continue;
case ContinuationState.CompleteReadingPropertyValue:
// Register property position, name id (PropertyId) and type (object type and metadata)
currentState.Properties.Add(new PropertyTag(
position: _writeToken.ValuePos,
type: (byte)_writeToken.WrittenToken,
property: currentState.CurrentProperty));
currentState.State = ContinuationState.ReadPropertyName;
continue;
case ContinuationState.ReadValue:
ReadJsonValue <TWriteStrategy>();
currentState = _continuationState.Pop();
break;
}
}
ReturnTrue : return(true);
ReturnFalse : return(false);
ErrorExpectedProperty : ThrowExpectedProperty();
ErrorExpectedStartOfObject : ThrowExpectedStartOfObject();
ErrorExpectedStartOfArray : ThrowExpectedStartOfArray();
return(false); // Will never execute.
}
public virtual bool Read()
{
if (_continuationState.Count == 0)
{
return(false); //nothing to do
}
var currentState = _continuationState.Pop();
while (true)
{
switch (currentState.State)
{
case ContinuationState.ReadObjectDocument:
if (_reader.Read() == false)
{
_continuationState.Push(currentState);
return(false);
}
currentState.State = ContinuationState.ReadObject;
continue;
case ContinuationState.ReadArrayDocument:
if (_reader.Read() == false)
{
_continuationState.Push(currentState);
return(false);
}
var fakeFieldName = _context.GetLazyStringForFieldWithCaching("_");
var propIndex = _context.CachedProperties.GetPropertyId(fakeFieldName);
currentState.CurrentPropertyId = propIndex;
currentState.MaxPropertyId = propIndex;
currentState.FirstWrite = _writer.Position;
currentState.Properties = new List <PropertyTag>
{
new PropertyTag
{
PropertyId = propIndex
}
};
currentState.State = ContinuationState.CompleteDocumentArray;
_continuationState.Push(currentState);
currentState = new BuildingState
{
State = ContinuationState.ReadArray
};
continue;
case ContinuationState.CompleteDocumentArray:
currentState.Properties[0].Type = (byte)_writeToken.WrittenToken;
currentState.Properties[0].Position = _writeToken.ValuePos;
// Register property position, name id (PropertyId) and type (object type and metadata)
_writeToken = _writer.WriteObjectMetadata(currentState.Properties, currentState.FirstWrite, currentState.MaxPropertyId);
return(true);
case ContinuationState.ReadObject:
if (_state.CurrentTokenType != JsonParserToken.StartObject)
{
throw new InvalidDataException("Expected start of object, but got " + _state.CurrentTokenType);
}
currentState.State = ContinuationState.ReadPropertyName;
currentState.Properties = new List <PropertyTag>();
currentState.FirstWrite = _writer.Position;
continue;
case ContinuationState.ReadArray:
if (_state.CurrentTokenType != JsonParserToken.StartArray)
{
throw new InvalidDataException("Expected start of array, but got " + _state.CurrentTokenType);
}
currentState.Types = new List <BlittableJsonToken>();
currentState.Positions = new List <int>();
currentState.State = ContinuationState.ReadArrayValue;
continue;
case ContinuationState.ReadArrayValue:
if (_reader.Read() == false)
{
_continuationState.Push(currentState);
return(false);
}
if (_state.CurrentTokenType == JsonParserToken.EndArray)
{
currentState.State = ContinuationState.CompleteArray;
continue;
}
currentState.State = ContinuationState.CompleteArrayValue;
_continuationState.Push(currentState);
currentState = new BuildingState
{
State = ContinuationState.ReadValue
};
continue;
case ContinuationState.CompleteArrayValue:
currentState.Types.Add(_writeToken.WrittenToken);
currentState.Positions.Add(_writeToken.ValuePos);
currentState.State = ContinuationState.ReadArrayValue;
continue;
case ContinuationState.CompleteArray:
var arrayToken = BlittableJsonToken.StartArray;
var arrayInfoStart = _writer.WriteArrayMetadata(currentState.Positions, currentState.Types,
ref arrayToken);
_writeToken = new WriteToken
{
ValuePos = arrayInfoStart,
WrittenToken = arrayToken
};
currentState = _continuationState.Pop();
continue;
case ContinuationState.ReadPropertyName:
if (_reader.Read() == false)
{
_continuationState.Push(currentState);
return(false);
}
if (_state.CurrentTokenType == JsonParserToken.EndObject)
{
_writeToken = _writer.WriteObjectMetadata(currentState.Properties, currentState.FirstWrite,
currentState.MaxPropertyId);
if (_continuationState.Count == 0)
{
return(true);
}
currentState = _continuationState.Pop();
continue;
}
if (_state.CurrentTokenType != JsonParserToken.String)
{
throw new InvalidDataException("Expected property, but got " + _state.CurrentTokenType);
}
var property = CreateLazyStringValueFromParserState();
currentState.CurrentPropertyId = _context.CachedProperties.GetPropertyId(property);
currentState.MaxPropertyId = Math.Max(currentState.MaxPropertyId, currentState.CurrentPropertyId);
currentState.State = ContinuationState.ReadPropertyValue;
continue;
case ContinuationState.ReadPropertyValue:
if (_reader.Read() == false)
{
_continuationState.Push(currentState);
return(false);
}
currentState.State = ContinuationState.CompleteReadingPropertyValue;
_continuationState.Push(currentState);
currentState = new BuildingState
{
State = ContinuationState.ReadValue
};
continue;
case ContinuationState.CompleteReadingPropertyValue:
// Register property position, name id (PropertyId) and type (object type and metadata)
currentState.Properties.Add(new PropertyTag
{
Position = _writeToken.ValuePos,
Type = (byte)_writeToken.WrittenToken,
PropertyId = currentState.CurrentPropertyId
});
currentState.State = ContinuationState.ReadPropertyName;
continue;
case ContinuationState.ReadValue:
ReadJsonValue();
currentState = _continuationState.Pop();
break;
}
}
}
