private void WriteToStream(Type type, object value, Stream writeStream, HttpContent content)
{
Encoding effectiveEncoding = SelectCharacterEncoding(content == null ? null : content.Headers);
using (JsonTextWriter jsonTextWriter = new JsonTextWriter(new StreamWriter(writeStream, effectiveEncoding))
{
CloseOutput = false
})
{
if (Indent)
{
jsonTextWriter.Formatting = Newtonsoft.Json.Formatting.Indented;
}
JsonSerializer jsonSerializer = JsonSerializer.Create(_jsonSerializerSettings);
if (!ShouldBypassPartialResponse(_request))
{
_fields = GetPartialResponseFields(_request);
}
if (_fields == null)
{
jsonSerializer.Serialize(jsonTextWriter, value);
}
else
{
PartialJsonMediaTypeFormatterUtilities.RemovePropertiesAndArrayElements(value, jsonTextWriter, jsonSerializer, ShouldSerialize);
}
jsonTextWriter.Flush();
}
}
/// <summary>
/// Returns a value that indicates whether the field should be serialized.
/// </summary>
/// <param name="field">The field.</param>
/// <param name="tokenType">The type.</param>
/// <returns>True if the value should be serialized, otherwise false.</returns>
protected virtual bool ShouldSerialize(string field)
{
if (field == null)
{
throw new ArgumentNullException("field");
}
var pattern = PartialJsonMediaTypeFormatterUtilities.GetRegexPatternForField(field);
var regexOptions = RegexOptions.None;
if (IgnoreCase)
{
regexOptions = RegexOptions.IgnoreCase;
}
return(_fields.Any(f => Regex.IsMatch(f, pattern, regexOptions)));
}
