public BsonJsonWriter(
TextWriter writer,
BsonJsonWriterSettings settings
)
{
this.textWriter = writer;
this.settings = settings;
context = new BsonJsonWriterContext(null, BsonWriteState.Initial, "");
}
internal BsonJsonWriterContext(
BsonJsonWriterContext parentContext,
BsonWriteState writeState,
string indentation
)
{
this.parentContext = parentContext;
this.writeState = writeState;
this.indentation = indentation;
}
public override void Close()
{
// Close can be called on Disposed objects
if (context.WriteState != BsonWriteState.Closed) {
Flush();
if (settings.CloseOutput) {
textWriter.Close();
}
context = new BsonJsonWriterContext(null, BsonWriteState.Closed, "");
}
}
private void WriteDocumentName(
string name,
BsonWriteState documentType
)
{
WriteName(name);
context = new BsonJsonWriterContext(context, documentType, context.Indentation + settings.IndentChars);
context = new BsonJsonWriterContext(context, BsonWriteState.StartDocument, null);
}
public override void WriteStartDocument()
{
if (disposed) { throw new ObjectDisposedException("BsonJsonWriter"); }
if (context.WriteState == BsonWriteState.StartDocument) {
context = context.ParentContext;
} else if (context.WriteState == BsonWriteState.Initial || context.WriteState == BsonWriteState.Done) {
context = new BsonJsonWriterContext(context, BsonWriteState.Document, context.Indentation + settings.IndentChars);
} else {
throw new InvalidOperationException("WriteStartDocument can only be called when WriteState is Initial, StartDocument or Done");
}
if (context.WriteState == BsonWriteState.Array) {
textWriter.Write("[");
} else {
textWriter.Write("{");
}
}
public override void WriteEndDocument()
{
if (disposed) { throw new ObjectDisposedException("BsonJsonWriter"); }
if ((context.WriteState & BsonWriteState.Document) == 0) {
throw new InvalidOperationException("WriteEndDocument can only be called when WriteState is one of the document states");
}
if (context.WriteState == BsonWriteState.Array) {
textWriter.Write("]");
} else {
if (settings.Indent && context.HasElements) {
textWriter.Write(settings.NewLineChars);
textWriter.Write(context.ParentContext.Indentation);
textWriter.Write("}");
} else {
textWriter.Write(" }");
}
}
context = context.ParentContext;
if (context.WriteState == BsonWriteState.JavaScriptWithScope) {
WriteEndDocument();
}
if (context.WriteState == BsonWriteState.Initial) {
context = new BsonJsonWriterContext(null, BsonWriteState.Done, "");
}
}
