/// <summary>
/// Writes the JSON representation of the object.
/// </summary>
/// <param name="writer">The <see cref="JsonWriter"/> to write to.</param>
/// <param name="value">The value.</param>
/// <param name="serializer">The calling serializer.</param>
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
Regex regex = (Regex)value;
CborDataWriter cborWriter = writer as CborDataWriter;
if (cborWriter == null)
{
throw ExceptionUtils.CreateJsonSerializationException(cborWriter as IJsonLineInfo, cborWriter.Path, $"{nameof(CborDataRegexConverter)} only supports writing a regex with {nameof(CborDataWriter)}.", null);
}
WriteCbor(cborWriter, regex);
}
/// <summary>
/// Writes the JSON representation of the object.
/// </summary>
/// <param name="writer">The <see cref="JsonWriter"/> to write to.</param>
/// <param name="value">The value.</param>
/// <param name="serializer">The calling serializer.</param>
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
Regex regex = (Regex)value;
BsonDataWriter bsonWriter = writer as BsonDataWriter;
if (bsonWriter == null)
{
throw ExceptionUtils.CreateJsonSerializationException(bsonWriter as IJsonLineInfo, bsonWriter.Path, "BsonDataRegexConverter only supports writing a regex with BsonDataWriter.", null);
}
WriteBson(bsonWriter, regex);
}
/// <summary>
/// Reads the JSON representation of the object.
/// </summary>
/// <param name="reader">The <see cref="JsonReader"/> to read from.</param>
/// <param name="objectType">Type of the object.</param>
/// <param name="existingValue">The existing value of object being read.</param>
/// <param name="serializer">The calling serializer.</param>
/// <returns>The object value.</returns>
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
switch (reader.TokenType)
{
case JsonToken.StartObject:
return(ReadRegexObject(reader, serializer));
case JsonToken.String:
return(ReadRegexString(reader));
case JsonToken.Null:
return(null);
}
throw ExceptionUtils.CreateJsonSerializationException(reader as IJsonLineInfo, reader.Path, "Unexpected token when reading Regex.", null);
}
private Regex ReadRegexObject(JsonReader reader, JsonSerializer serializer)
{
string pattern = null;
RegexOptions?options = null;
while (reader.Read())
{
switch (reader.TokenType)
{
case JsonToken.PropertyName:
string propertyName = reader.Value.ToString();
if (!reader.Read())
{
throw ExceptionUtils.CreateJsonSerializationException(reader as IJsonLineInfo, reader.Path, "Unexpected end when reading Regex.", null);
}
if (string.Equals(propertyName, PatternName, StringComparison.OrdinalIgnoreCase))
{
pattern = (string)reader.Value;
}
else if (string.Equals(propertyName, OptionsName, StringComparison.OrdinalIgnoreCase))
{
options = serializer.Deserialize <RegexOptions>(reader);
}
else
{
reader.Skip();
}
break;
case JsonToken.Comment:
break;
case JsonToken.EndObject:
if (pattern == null)
{
throw ExceptionUtils.CreateJsonSerializationException(reader as IJsonLineInfo, reader.Path, "Error deserializing Regex. No pattern found.", null);
}
return(new Regex(pattern, options ?? RegexOptions.None));
}
}
throw ExceptionUtils.CreateJsonSerializationException(reader as IJsonLineInfo, reader.Path, "Unexpected end when reading Regex.", null);
}