537 lines
18 KiB
C#
537 lines
18 KiB
C#
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#region License
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// Copyright (c) 2007 James Newton-King
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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#endregion
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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#if HAVE_BIG_INTEGER
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using System.Numerics;
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#endif
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using System.Text;
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using LC.Newtonsoft.Json.Utilities;
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using LC.Newtonsoft.Json.Linq;
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using System.Globalization;
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namespace LC.Newtonsoft.Json.Bson
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{
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/// <summary>
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/// Represents a writer that provides a fast, non-cached, forward-only way of generating BSON data.
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/// </summary>
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[Obsolete("BSON reading and writing has been moved to its own package. See https://www.nuget.org/packages/Newtonsoft.Json.Bson for more details.")]
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public class BsonWriter : JsonWriter
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{
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private readonly BsonBinaryWriter _writer;
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private BsonToken _root;
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private BsonToken _parent;
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private string _propertyName;
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/// <summary>
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/// Gets or sets the <see cref="DateTimeKind" /> used when writing <see cref="DateTime"/> values to BSON.
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/// When set to <see cref="DateTimeKind.Unspecified" /> no conversion will occur.
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/// </summary>
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/// <value>The <see cref="DateTimeKind" /> used when writing <see cref="DateTime"/> values to BSON.</value>
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public DateTimeKind DateTimeKindHandling
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{
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get => _writer.DateTimeKindHandling;
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set => _writer.DateTimeKindHandling = value;
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="BsonWriter"/> class.
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/// </summary>
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/// <param name="stream">The <see cref="Stream"/> to write to.</param>
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public BsonWriter(Stream stream)
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{
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ValidationUtils.ArgumentNotNull(stream, nameof(stream));
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_writer = new BsonBinaryWriter(new BinaryWriter(stream));
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="BsonWriter"/> class.
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/// </summary>
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/// <param name="writer">The <see cref="BinaryWriter"/> to write to.</param>
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public BsonWriter(BinaryWriter writer)
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{
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ValidationUtils.ArgumentNotNull(writer, nameof(writer));
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_writer = new BsonBinaryWriter(writer);
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}
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/// <summary>
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/// Flushes whatever is in the buffer to the underlying <see cref="Stream"/> and also flushes the underlying stream.
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/// </summary>
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public override void Flush()
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{
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_writer.Flush();
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}
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/// <summary>
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/// Writes the end.
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/// </summary>
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/// <param name="token">The token.</param>
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protected override void WriteEnd(JsonToken token)
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{
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base.WriteEnd(token);
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RemoveParent();
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if (Top == 0)
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{
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_writer.WriteToken(_root);
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}
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}
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/// <summary>
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/// Writes a comment <c>/*...*/</c> containing the specified text.
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/// </summary>
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/// <param name="text">Text to place inside the comment.</param>
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public override void WriteComment(string text)
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{
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throw JsonWriterException.Create(this, "Cannot write JSON comment as BSON.", null);
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}
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/// <summary>
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/// Writes the start of a constructor with the given name.
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/// </summary>
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/// <param name="name">The name of the constructor.</param>
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public override void WriteStartConstructor(string name)
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{
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throw JsonWriterException.Create(this, "Cannot write JSON constructor as BSON.", null);
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}
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/// <summary>
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/// Writes raw JSON.
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/// </summary>
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/// <param name="json">The raw JSON to write.</param>
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public override void WriteRaw(string json)
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{
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throw JsonWriterException.Create(this, "Cannot write raw JSON as BSON.", null);
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}
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/// <summary>
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/// Writes raw JSON where a value is expected and updates the writer's state.
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/// </summary>
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/// <param name="json">The raw JSON to write.</param>
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public override void WriteRawValue(string json)
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{
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throw JsonWriterException.Create(this, "Cannot write raw JSON as BSON.", null);
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}
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/// <summary>
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/// Writes the beginning of a JSON array.
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/// </summary>
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public override void WriteStartArray()
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{
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base.WriteStartArray();
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AddParent(new BsonArray());
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}
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/// <summary>
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/// Writes the beginning of a JSON object.
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/// </summary>
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public override void WriteStartObject()
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{
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base.WriteStartObject();
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AddParent(new BsonObject());
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}
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/// <summary>
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/// Writes the property name of a name/value pair on a JSON object.
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/// </summary>
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/// <param name="name">The name of the property.</param>
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public override void WritePropertyName(string name)
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{
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base.WritePropertyName(name);
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_propertyName = name;
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}
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/// <summary>
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/// Closes this writer.
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/// If <see cref="JsonWriter.CloseOutput"/> is set to <c>true</c>, the underlying <see cref="Stream"/> is also closed.
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/// If <see cref="JsonWriter.AutoCompleteOnClose"/> is set to <c>true</c>, the JSON is auto-completed.
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/// </summary>
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public override void Close()
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{
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base.Close();
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if (CloseOutput)
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{
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_writer?.Close();
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}
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}
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private void AddParent(BsonToken container)
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{
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AddToken(container);
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_parent = container;
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}
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private void RemoveParent()
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{
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_parent = _parent.Parent;
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}
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private void AddValue(object value, BsonType type)
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{
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AddToken(new BsonValue(value, type));
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}
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internal void AddToken(BsonToken token)
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{
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if (_parent != null)
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{
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if (_parent is BsonObject bo)
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{
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bo.Add(_propertyName, token);
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_propertyName = null;
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}
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else
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{
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((BsonArray)_parent).Add(token);
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}
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}
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else
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{
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if (token.Type != BsonType.Object && token.Type != BsonType.Array)
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{
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throw JsonWriterException.Create(this, "Error writing {0} value. BSON must start with an Object or Array.".FormatWith(CultureInfo.InvariantCulture, token.Type), null);
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}
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_parent = token;
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_root = token;
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}
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}
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#region WriteValue methods
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/// <summary>
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/// Writes a <see cref="Object"/> value.
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/// An error will raised if the value cannot be written as a single JSON token.
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/// </summary>
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/// <param name="value">The <see cref="Object"/> value to write.</param>
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public override void WriteValue(object value)
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{
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#if HAVE_BIG_INTEGER
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if (value is BigInteger i)
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{
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SetWriteState(JsonToken.Integer, null);
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AddToken(new BsonBinary(i.ToByteArray(), BsonBinaryType.Binary));
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}
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else
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#endif
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{
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base.WriteValue(value);
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}
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}
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/// <summary>
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/// Writes a null value.
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/// </summary>
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public override void WriteNull()
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{
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base.WriteNull();
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AddToken(BsonEmpty.Null);
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}
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/// <summary>
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/// Writes an undefined value.
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/// </summary>
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public override void WriteUndefined()
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{
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base.WriteUndefined();
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AddToken(BsonEmpty.Undefined);
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}
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/// <summary>
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/// Writes a <see cref="String"/> value.
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/// </summary>
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/// <param name="value">The <see cref="String"/> value to write.</param>
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public override void WriteValue(string value)
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{
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base.WriteValue(value);
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AddToken(value == null ? BsonEmpty.Null : new BsonString(value, true));
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}
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/// <summary>
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/// Writes a <see cref="Int32"/> value.
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/// </summary>
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/// <param name="value">The <see cref="Int32"/> value to write.</param>
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public override void WriteValue(int value)
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{
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base.WriteValue(value);
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AddValue(value, BsonType.Integer);
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}
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/// <summary>
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/// Writes a <see cref="UInt32"/> value.
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/// </summary>
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/// <param name="value">The <see cref="UInt32"/> value to write.</param>
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[CLSCompliant(false)]
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public override void WriteValue(uint value)
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{
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if (value > int.MaxValue)
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{
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throw JsonWriterException.Create(this, "Value is too large to fit in a signed 32 bit integer. BSON does not support unsigned values.", null);
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}
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base.WriteValue(value);
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AddValue(value, BsonType.Integer);
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}
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/// <summary>
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/// Writes a <see cref="Int64"/> value.
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/// </summary>
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/// <param name="value">The <see cref="Int64"/> value to write.</param>
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public override void WriteValue(long value)
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{
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base.WriteValue(value);
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AddValue(value, BsonType.Long);
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}
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/// <summary>
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/// Writes a <see cref="UInt64"/> value.
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/// </summary>
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/// <param name="value">The <see cref="UInt64"/> value to write.</param>
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[CLSCompliant(false)]
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public override void WriteValue(ulong value)
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{
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if (value > long.MaxValue)
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{
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throw JsonWriterException.Create(this, "Value is too large to fit in a signed 64 bit integer. BSON does not support unsigned values.", null);
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}
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base.WriteValue(value);
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AddValue(value, BsonType.Long);
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}
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/// <summary>
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/// Writes a <see cref="Single"/> value.
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/// </summary>
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/// <param name="value">The <see cref="Single"/> value to write.</param>
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public override void WriteValue(float value)
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{
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base.WriteValue(value);
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AddValue(value, BsonType.Number);
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}
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/// <summary>
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/// Writes a <see cref="Double"/> value.
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/// </summary>
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/// <param name="value">The <see cref="Double"/> value to write.</param>
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public override void WriteValue(double value)
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{
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base.WriteValue(value);
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AddValue(value, BsonType.Number);
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}
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/// <summary>
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/// Writes a <see cref="Boolean"/> value.
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/// </summary>
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/// <param name="value">The <see cref="Boolean"/> value to write.</param>
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public override void WriteValue(bool value)
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{
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base.WriteValue(value);
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AddToken(value ? BsonBoolean.True : BsonBoolean.False);
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}
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/// <summary>
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/// Writes a <see cref="Int16"/> value.
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/// </summary>
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/// <param name="value">The <see cref="Int16"/> value to write.</param>
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public override void WriteValue(short value)
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{
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base.WriteValue(value);
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AddValue(value, BsonType.Integer);
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}
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/// <summary>
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/// Writes a <see cref="UInt16"/> value.
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/// </summary>
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/// <param name="value">The <see cref="UInt16"/> value to write.</param>
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[CLSCompliant(false)]
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public override void WriteValue(ushort value)
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{
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base.WriteValue(value);
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AddValue(value, BsonType.Integer);
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}
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/// <summary>
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/// Writes a <see cref="Char"/> value.
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/// </summary>
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/// <param name="value">The <see cref="Char"/> value to write.</param>
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public override void WriteValue(char value)
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{
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base.WriteValue(value);
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string s = null;
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#if HAVE_CHAR_TO_STRING_WITH_CULTURE
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s = value.ToString(CultureInfo.InvariantCulture);
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#else
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s = value.ToString();
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#endif
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AddToken(new BsonString(s, true));
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}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Writes a <see cref="Byte"/> value.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="value">The <see cref="Byte"/> value to write.</param>
|
||
|
|
public override void WriteValue(byte value)
|
||
|
|
{
|
||
|
|
base.WriteValue(value);
|
||
|
|
AddValue(value, BsonType.Integer);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Writes a <see cref="SByte"/> value.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="value">The <see cref="SByte"/> value to write.</param>
|
||
|
|
[CLSCompliant(false)]
|
||
|
|
public override void WriteValue(sbyte value)
|
||
|
|
{
|
||
|
|
base.WriteValue(value);
|
||
|
|
AddValue(value, BsonType.Integer);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Writes a <see cref="Decimal"/> value.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="value">The <see cref="Decimal"/> value to write.</param>
|
||
|
|
public override void WriteValue(decimal value)
|
||
|
|
{
|
||
|
|
base.WriteValue(value);
|
||
|
|
AddValue(value, BsonType.Number);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Writes a <see cref="DateTime"/> value.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="value">The <see cref="DateTime"/> value to write.</param>
|
||
|
|
public override void WriteValue(DateTime value)
|
||
|
|
{
|
||
|
|
base.WriteValue(value);
|
||
|
|
value = DateTimeUtils.EnsureDateTime(value, DateTimeZoneHandling);
|
||
|
|
AddValue(value, BsonType.Date);
|
||
|
|
}
|
||
|
|
|
||
|
|
#if HAVE_DATE_TIME_OFFSET
|
||
|
|
/// <summary>
|
||
|
|
/// Writes a <see cref="DateTimeOffset"/> value.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="value">The <see cref="DateTimeOffset"/> value to write.</param>
|
||
|
|
public override void WriteValue(DateTimeOffset value)
|
||
|
|
{
|
||
|
|
base.WriteValue(value);
|
||
|
|
AddValue(value, BsonType.Date);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Writes a <see cref="Byte"/>[] value.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="value">The <see cref="Byte"/>[] value to write.</param>
|
||
|
|
public override void WriteValue(byte[] value)
|
||
|
|
{
|
||
|
|
if (value == null)
|
||
|
|
{
|
||
|
|
WriteNull();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
base.WriteValue(value);
|
||
|
|
AddToken(new BsonBinary(value, BsonBinaryType.Binary));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Writes a <see cref="Guid"/> value.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="value">The <see cref="Guid"/> value to write.</param>
|
||
|
|
public override void WriteValue(Guid value)
|
||
|
|
{
|
||
|
|
base.WriteValue(value);
|
||
|
|
AddToken(new BsonBinary(value.ToByteArray(), BsonBinaryType.Uuid));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Writes a <see cref="TimeSpan"/> value.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="value">The <see cref="TimeSpan"/> value to write.</param>
|
||
|
|
public override void WriteValue(TimeSpan value)
|
||
|
|
{
|
||
|
|
base.WriteValue(value);
|
||
|
|
AddToken(new BsonString(value.ToString(), true));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Writes a <see cref="Uri"/> value.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="value">The <see cref="Uri"/> value to write.</param>
|
||
|
|
public override void WriteValue(Uri value)
|
||
|
|
{
|
||
|
|
if (value == null)
|
||
|
|
{
|
||
|
|
WriteNull();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
base.WriteValue(value);
|
||
|
|
AddToken(new BsonString(value.ToString(), true));
|
||
|
|
}
|
||
|
|
#endregion
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Writes a <see cref="Byte"/>[] value that represents a BSON object id.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="value">The Object ID value to write.</param>
|
||
|
|
public void WriteObjectId(byte[] value)
|
||
|
|
{
|
||
|
|
ValidationUtils.ArgumentNotNull(value, nameof(value));
|
||
|
|
|
||
|
|
if (value.Length != 12)
|
||
|
|
{
|
||
|
|
throw JsonWriterException.Create(this, "An object id must be 12 bytes", null);
|
||
|
|
}
|
||
|
|
|
||
|
|
// hack to update the writer state
|
||
|
|
SetWriteState(JsonToken.Undefined, null);
|
||
|
|
AddValue(value, BsonType.Oid);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Writes a BSON regex.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="pattern">The regex pattern.</param>
|
||
|
|
/// <param name="options">The regex options.</param>
|
||
|
|
public void WriteRegex(string pattern, string options)
|
||
|
|
{
|
||
|
|
ValidationUtils.ArgumentNotNull(pattern, nameof(pattern));
|
||
|
|
|
||
|
|
// hack to update the writer state
|
||
|
|
SetWriteState(JsonToken.Undefined, null);
|
||
|
|
AddToken(new BsonRegex(pattern, options));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|