internal BsonBinaryReaderContext(
BsonBinaryReaderContext parentContext,
BsonReadState readState
)
{
this.parentContext = parentContext;
this.readState = readState;
}
public BsonBinaryReader(
BsonBuffer buffer,
BsonBinaryReaderSettings settings
) {
this.buffer = buffer ?? new BsonBuffer();
this.disposeBuffer = buffer == null; // only call Dispose if we allocated the buffer
this.settings = settings;
context = new BsonBinaryReaderContext(null, BsonReadState.Initial);
}
public override void Close() {
// Close can be called on Disposed objects
if (context.ReadState != BsonReadState.Closed) {
context = new BsonBinaryReaderContext(null, BsonReadState.Closed);
}
}
public override void ReadStartDocument() {
if (disposed) { throw new ObjectDisposedException("BsonBinaryReader"); }
if (context.ReadState == BsonReadState.StartDocument) {
context = context.ParentContext;
} else if (context.ReadState == BsonReadState.Initial || context.ReadState == BsonReadState.Done) {
context = new BsonBinaryReaderContext(context, BsonReadState.Document);
} else {
string message = string.Format("ReadStartDocument cannot be called when ReadState is: {0}", context.ReadState);
throw new InvalidOperationException(message);
}
context.StartPosition = buffer.Position;
context.Size = ReadSize();
}
public override string ReadJavaScriptWithScope(
out string name
) {
if (disposed) { throw new ObjectDisposedException("BsonBinaryReader"); }
VerifyBsonType("ReadJavaScriptWithScope", BsonType.JavaScriptWithScope);
name = buffer.ReadCString();
context = new BsonBinaryReaderContext(context, BsonReadState.JavaScriptWithScope);
context.StartPosition = buffer.Position;
context.Size = ReadSize();
var code = buffer.ReadString();
context = new BsonBinaryReaderContext(context, BsonReadState.ScopeDocument);
context = new BsonBinaryReaderContext(context, BsonReadState.StartDocument);
return code;
}
public override void ReadEndDocument() {
if (disposed) { throw new ObjectDisposedException("BsonBinaryReader"); }
VerifyBsonType("ReadEndDocument", BsonType.EndOfDocument);
if (context.Size != buffer.Position - context.StartPosition) {
throw new FileFormatException("Document size was incorrect");
}
context = context.ParentContext;
if (context.ReadState == BsonReadState.JavaScriptWithScope) {
if (context.Size != buffer.Position - context.StartPosition) {
throw new FileFormatException("JavaScriptWithScope size was incorrect");
}
context = context.ParentContext;
}
if (context.ReadState == BsonReadState.Initial) {
context = new BsonBinaryReaderContext(null, BsonReadState.Done);
}
}
public override void ReadDocumentName(
out string name
) {
if (disposed) { throw new ObjectDisposedException("BsonBinaryReader"); }
VerifyBsonType("ReadDocumentName", BsonType.Document);
name = buffer.ReadCString();
context = new BsonBinaryReaderContext(context, BsonReadState.EmbeddedDocument);
context = new BsonBinaryReaderContext(context, BsonReadState.StartDocument);
}
