public unsafe BlittableJsonReaderArray ParseBufferToArray(string value, string debugTag,
BlittableJsonDocumentBuilder.UsageMode mode, IBlittableDocumentModifier modifier = null)
{
if (_disposed)
{
ThrowObjectDisposed();
}
_jsonParserState.Reset();
using (var parser = new UnmanagedJsonParser(this, _jsonParserState, debugTag))
using (var builder = new BlittableJsonDocumentBuilder(this, mode, debugTag, parser, _jsonParserState, modifier: modifier))
using (GetManagedBuffer(out var buffer))
{
CachedProperties.NewDocument();
builder.ReadArrayDocument();
var maxChars = buffer.Length / 8; //utf8 max size is 8 bytes, must consider worst case possiable
bool lastReadResult = false;
for (int i = 0; i < value.Length; i += maxChars)
{
var charsToRead = Math.Min(value.Length - i, maxChars);
var length = Encodings.Utf8.GetBytes(value, i,
charsToRead,
buffer.Buffer.Array,
buffer.Buffer.Offset);
parser.SetBuffer(buffer.Pointer, length);
lastReadResult = builder.Read();
}
if (lastReadResult == false)
{
throw new EndOfStreamException("Buffer ended without reaching end of json content");
}
builder.FinalizeDocument();
var reader = builder.CreateArrayReader(false);
return(reader);
}
}
public async Task <BlittableJsonReaderArray> ParseArrayToMemoryAsync(Stream stream, string debugTag,
BlittableJsonDocumentBuilder.UsageMode mode)
{
_jsonParserState.Reset();
ManagedPinnedBuffer bytes;
using (GetManagedBuffer(out bytes))
using (var parser = new UnmanagedJsonParser(this, _jsonParserState, debugTag))
{
var writer = new BlittableJsonDocumentBuilder(this, mode, debugTag, parser, _jsonParserState);
try
{
CachedProperties.NewDocument();
writer.ReadArrayDocument();
while (true)
{
var read = await stream.ReadAsync(bytes.Buffer.Array, bytes.Buffer.Offset, bytes.Length);
if (read == 0)
{
throw new EndOfStreamException("Stream ended without reaching end of json content");
}
parser.SetBuffer(bytes, read);
if (writer.Read())
{
break;
}
}
writer.FinalizeDocument();
// here we "leak" the memory used by the array, in practice this is used
// in short scoped context, so we don't care
return(writer.CreateArrayReader());
}
catch (Exception)
{
writer.Dispose();
throw;
}
}
}