/// <summary>
/// Writes the end of a BSON document to the writer.
/// </summary>
public override void WriteEndDocument()
{
if (Disposed)
{
throw new ObjectDisposedException("BsonBinaryWriter");
}
if (State != BsonWriterState.Name)
{
ThrowInvalidState("WriteEndDocument", BsonWriterState.Name);
}
if (_context.ContextType != ContextType.Document && _context.ContextType != ContextType.ScopeDocument)
{
ThrowInvalidContextType("WriteEndDocument", _context.ContextType, ContextType.Document, ContextType.ScopeDocument);
}
base.WriteEndDocument();
_buffer.WriteByte(0);
BackpatchSize(); // size of document
_context = _context.ParentContext;
if (_context == null)
{
State = BsonWriterState.Done;
}
else
{
if (_context.ContextType == ContextType.JavaScriptWithScope)
{
BackpatchSize(); // size of the JavaScript with scope value
_context = _context.ParentContext;
}
State = GetNextState();
}
}
/// <summary>
/// Writes a raw BSON document.
/// </summary>
/// <param name="slice">The byte buffer containing the raw BSON document.</param>
public override void WriteRawBsonDocument(IByteBuffer slice)
{
if (Disposed)
{
throw new ObjectDisposedException("BsonBinaryWriter");
}
if (State != BsonWriterState.Initial && State != BsonWriterState.Value && State != BsonWriterState.ScopeDocument && State != BsonWriterState.Done)
{
ThrowInvalidState("WriteRawBsonDocument", BsonWriterState.Initial, BsonWriterState.Value, BsonWriterState.ScopeDocument, BsonWriterState.Done);
}
if (State == BsonWriterState.Value)
{
_buffer.WriteByte((byte)BsonType.Document);
WriteNameHelper();
}
_buffer.ByteBuffer.WriteBytes(slice); // assumes byteBuffer is a valid raw BSON document
if (_context == null)
{
State = BsonWriterState.Done;
}
else
{
if (_context.ContextType == ContextType.JavaScriptWithScope)
{
BackpatchSize(); // size of the JavaScript with scope value
_context = _context.ParentContext;
}
State = GetNextState();
}
}
// constructors
internal BsonBinaryWriterContext(
BsonBinaryWriterContext parentContext,
ContextType contextType,
int startPosition)
{
_parentContext = parentContext;
_contextType = contextType;
_startPosition = startPosition;
}
private int _index; // used when contextType is Array
// constructors
internal BsonBinaryWriterContext(
BsonBinaryWriterContext parentContext,
ContextType contextType,
int startPosition)
{
_parentContext = parentContext;
_contextType = contextType;
_startPosition = startPosition;
}
/// <summary>
/// Initializes a new instance of the BsonBinaryWriter class.
/// </summary>
/// <param name="buffer">A BsonBuffer.</param>
/// <param name="disposeBuffer">if set to <c>true</c> this BsonBinaryReader will own the buffer and when Dispose is called the buffer will be Disposed also.</param>
/// <param name="settings">Optional BsonBinaryWriter settings.</param>
/// <exception cref="System.ArgumentNullException">
/// encoder
/// or
/// settings
/// </exception>
public BsonBinaryWriter(BsonBuffer buffer, bool disposeBuffer, BsonBinaryWriterSettings settings)
: base(settings)
{
if (buffer == null)
{
throw new ArgumentNullException("encoder");
}
_buffer = buffer;
_disposeBuffer = disposeBuffer;
_binaryWriterSettings = settings; // already frozen by base class
_maxDocumentSizeStack.Push(_binaryWriterSettings.MaxDocumentSize);
_context = null;
State = BsonWriterState.Initial;
}
// public methods
/// <summary>
/// Closes the writer.
/// </summary>
public override void Close()
{
// Close can be called on Disposed objects
if (State != BsonWriterState.Closed)
{
if (State == BsonWriterState.Done)
{
Flush();
}
if (_stream != null && _binaryWriterSettings.CloseOutput)
{
_stream.Close();
}
_context = null;
State = BsonWriterState.Closed;
}
}
/// <summary>
/// Writes the start of a BSON array to the writer.
/// </summary>
public override void WriteStartArray()
{
if (Disposed)
{
throw new ObjectDisposedException("BsonBinaryWriter");
}
if (State != BsonWriterState.Value)
{
ThrowInvalidState("WriteStartArray", BsonWriterState.Value);
}
base.WriteStartArray();
_buffer.WriteByte((byte)BsonType.Array);
WriteNameHelper();
_context = new BsonBinaryWriterContext(_context, ContextType.Array, _buffer.Position);
_buffer.WriteInt32(0); // reserve space for size
State = BsonWriterState.Value;
}
// constructors
/// <summary>
/// Initializes a new instance of the BsonBinaryWriter class.
/// </summary>
/// <param name="stream">A stream.</param>
/// <param name="buffer">A BsonBuffer.</param>
/// <param name="settings">Optional BsonBinaryWriter settings.</param>
public BsonBinaryWriter(Stream stream, BsonBuffer buffer, BsonBinaryWriterSettings settings)
: base(settings)
{
_stream = stream;
if (buffer == null)
{
_buffer = new BsonBuffer();
_disposeBuffer = true; // only call Dispose if we allocated the buffer
}
else
{
_buffer = buffer;
_disposeBuffer = false;
}
_binaryWriterSettings = settings; // already frozen by base class
_context = null;
State = BsonWriterState.Initial;
}
/// <summary>
/// Writes a BSON JavaScript to the writer (call WriteStartDocument to start writing the scope).
/// </summary>
/// <param name="code">The JavaScript code.</param>
public override void WriteJavaScriptWithScope(string code)
{
if (Disposed)
{
throw new ObjectDisposedException("BsonBinaryWriter");
}
if (State != BsonWriterState.Value)
{
ThrowInvalidState("WriteJavaScriptWithScope", BsonWriterState.Value);
}
_buffer.WriteByte((byte)BsonType.JavaScriptWithScope);
WriteNameHelper();
_context = new BsonBinaryWriterContext(_context, ContextType.JavaScriptWithScope, _buffer.Position);
_buffer.WriteInt32(0); // reserve space for size of JavaScript with scope value
_buffer.WriteString(code);
State = BsonWriterState.ScopeDocument;
}
// constructors
/// <summary>
/// Initializes a new instance of the BsonBinaryWriter class.
/// </summary>
/// <param name="stream">A stream.</param>
/// <param name="buffer">A BsonBuffer.</param>
/// <param name="settings">Optional BsonBinaryWriter settings.</param>
public BsonBinaryWriter(Stream stream, BsonBuffer buffer, BsonBinaryWriterSettings settings)
: base(settings)
{
_stream = stream;
if (buffer == null)
{
_buffer = new BsonBuffer();
_disposeBuffer = true; // only call Dispose if we allocated the buffer
}
else
{
_buffer = buffer;
_disposeBuffer = false;
}
_binaryWriterSettings = settings; // already frozen by base class
_context = null;
State = BsonWriterState.Initial;
}
/// <summary>
/// Writes the end of a BSON array to the writer.
/// </summary>
public override void WriteEndArray()
{
if (Disposed)
{
throw new ObjectDisposedException("BsonBinaryWriter");
}
if (State != BsonWriterState.Value)
{
ThrowInvalidState("WriteEndArray", BsonWriterState.Value);
}
if (_context.ContextType != ContextType.Array)
{
ThrowInvalidContextType("WriteEndArray", _context.ContextType, ContextType.Array);
}
base.WriteEndArray();
_buffer.WriteByte(0);
BackpatchSize(); // size of document
_context = _context.ParentContext;
State = GetNextState();
}
/// <summary>
/// Writes the start of a BSON document to the writer.
/// </summary>
public override void WriteStartDocument()
{
if (Disposed)
{
throw new ObjectDisposedException("BsonBinaryWriter");
}
if (State != BsonWriterState.Initial && State != BsonWriterState.Value && State != BsonWriterState.ScopeDocument && State != BsonWriterState.Done)
{
ThrowInvalidState("WriteStartDocument", BsonWriterState.Initial, BsonWriterState.Value, BsonWriterState.ScopeDocument, BsonWriterState.Done);
}
base.WriteStartDocument();
if (State == BsonWriterState.Value)
{
_buffer.WriteByte((byte)BsonType.Document);
WriteNameHelper();
}
var contextType = (State == BsonWriterState.ScopeDocument) ? ContextType.ScopeDocument : ContextType.Document;
_context = new BsonBinaryWriterContext(_context, ContextType.Document, _buffer.Position);
_buffer.WriteInt32(0); // reserve space for size
State = BsonWriterState.Name;
}
// public methods
/// <summary>
/// Closes the writer.
/// </summary>
public override void Close()
{
// Close can be called on Disposed objects
if (State != BsonWriterState.Closed)
{
if (State == BsonWriterState.Done)
{
Flush();
}
if (_stream != null && _binaryWriterSettings.CloseOutput)
{
_stream.Close();
}
_context = null;
State = BsonWriterState.Closed;
}
}
/// <summary>
/// Writes the start of a BSON document to the writer.
/// </summary>
public override void WriteStartDocument()
{
if (Disposed) { throw new ObjectDisposedException("BsonBinaryWriter"); }
if (State != BsonWriterState.Initial && State != BsonWriterState.Value && State != BsonWriterState.ScopeDocument && State != BsonWriterState.Done)
{
ThrowInvalidState("WriteStartDocument", BsonWriterState.Initial, BsonWriterState.Value, BsonWriterState.ScopeDocument, BsonWriterState.Done);
}
base.WriteStartDocument();
if (State == BsonWriterState.Value)
{
_buffer.WriteByte((byte)BsonType.Document);
WriteNameHelper();
}
var contextType = (State == BsonWriterState.ScopeDocument) ? ContextType.ScopeDocument : ContextType.Document;
_context = new BsonBinaryWriterContext(_context, ContextType.Document, _buffer.Position);
_buffer.WriteInt32(0); // reserve space for size
State = BsonWriterState.Name;
}
/// <summary>
/// Writes the start of a BSON array to the writer.
/// </summary>
public override void WriteStartArray()
{
if (Disposed) { throw new ObjectDisposedException("BsonBinaryWriter"); }
if (State != BsonWriterState.Value)
{
ThrowInvalidState("WriteStartArray", BsonWriterState.Value);
}
base.WriteStartArray();
_buffer.WriteByte((byte)BsonType.Array);
WriteNameHelper();
_context = new BsonBinaryWriterContext(_context, ContextType.Array, _buffer.Position);
_buffer.WriteInt32(0); // reserve space for size
State = BsonWriterState.Value;
}
/// <summary>
/// Writes the end of a BSON array to the writer.
/// </summary>
public override void WriteEndArray()
{
if (Disposed) { throw new ObjectDisposedException("BsonBinaryWriter"); }
if (State != BsonWriterState.Value)
{
ThrowInvalidState("WriteEndArray", BsonWriterState.Value);
}
if (_context.ContextType != ContextType.Array)
{
ThrowInvalidContextType("WriteEndArray", _context.ContextType, ContextType.Array);
}
base.WriteEndArray();
_buffer.WriteByte(0);
BackpatchSize(); // size of document
_context = _context.ParentContext;
State = GetNextState();
}
/// <summary>
/// Writes a BSON JavaScript to the writer (call WriteStartDocument to start writing the scope).
/// </summary>
/// <param name="code">The JavaScript code.</param>
public override void WriteJavaScriptWithScope(string code)
{
if (Disposed) { throw new ObjectDisposedException("BsonBinaryWriter"); }
if (State != BsonWriterState.Value)
{
ThrowInvalidState("WriteJavaScriptWithScope", BsonWriterState.Value);
}
_buffer.WriteByte((byte)BsonType.JavaScriptWithScope);
WriteNameHelper();
_context = new BsonBinaryWriterContext(_context, ContextType.JavaScriptWithScope, _buffer.Position);
_buffer.WriteInt32(0); // reserve space for size of JavaScript with scope value
_buffer.WriteString(code);
State = BsonWriterState.ScopeDocument;
}
/// <summary>
/// Writes the end of a BSON document to the writer.
/// </summary>
public override void WriteEndDocument()
{
if (Disposed) { throw new ObjectDisposedException("BsonBinaryWriter"); }
if (State != BsonWriterState.Name)
{
ThrowInvalidState("WriteEndDocument", BsonWriterState.Name);
}
if (_context.ContextType != ContextType.Document && _context.ContextType != ContextType.ScopeDocument)
{
ThrowInvalidContextType("WriteEndDocument", _context.ContextType, ContextType.Document, ContextType.ScopeDocument);
}
base.WriteEndDocument();
_buffer.WriteByte(0);
BackpatchSize(); // size of document
_context = _context.ParentContext;
if (_context == null)
{
State = BsonWriterState.Done;
}
else
{
if (_context.ContextType == ContextType.JavaScriptWithScope)
{
BackpatchSize(); // size of the JavaScript with scope value
_context = _context.ParentContext;
}
State = GetNextState();
}
}
