/// <summary>
/// Writes a the bytes for a CS string in BSON format
/// </summary>
public static byte[] AsCString(string value)
{
var stream = new DynamicStream();
stream.Append(AsString(value));
stream.InsertAt(0, BitConverter.GetBytes(stream.Length));
return stream.ToArray();
}
/// <summary>
/// Writes a binary object to the Mongo database
/// </summary>
public static byte[] AsBinary(byte[] value)
{
var stream = new DynamicStream(4);
//write the kinds of stream this is
//for now default to User-Defined
stream.Append((byte)MongoBinaryTypes.UserDefined);
//write the bytes and update the length
stream.Append(value);
stream.WriteAt(0, BitConverter.GetBytes(value.Length));
//and return the final bytes to use
return stream.ToArray();
}
/// <summary>
/// Renders the bytes required to create a document
/// </summary>
public override byte[] ToBsonByteArray()
{
//create the default size
DynamicStream stream = new DynamicStream(5);
//generate the bytes
stream.InsertAt(4, base.ToBsonByteArray());
//update the length
stream.WriteAt(0, BsonTranslator.AsInt32(stream.Length));
//and return the bytes to use
return stream.ToArray();
}
/// <summary>
/// Creates the bytes for a regular string in BSON format
/// </summary>
public static byte[] AsString(string value)
{
var stream = new DynamicStream();
stream.Append(Encoding.UTF8.GetBytes(value));
stream.Append(0);
return stream.ToArray();
}
/// <summary>
/// Writes a regex in BSON format
/// </summary>
/// <param name="value">The regex instance</param>
/// <returns>regex as bson byte arrray</returns>
public static byte[] AsRegex(Regex value)
{
var optionsStr = "";
var flags = value.Options;
if ((flags & RegexOptions.IgnoreCase) == RegexOptions.IgnoreCase) optionsStr += "i";
if ((flags & RegexOptions.CultureInvariant) == RegexOptions.CultureInvariant) optionsStr += "l";
if ((flags & RegexOptions.Multiline) == RegexOptions.Multiline) optionsStr += "m";
if ((flags & RegexOptions.Singleline) == RegexOptions.Singleline) optionsStr += "s";
if ((flags & RegexOptions.IgnorePatternWhitespace) == RegexOptions.IgnorePatternWhitespace) optionsStr += "x";
var stream = new DynamicStream();
stream.Append(AsString(value.ToString()));
stream.Append(AsString(optionsStr));
return stream.ToArray();
}
