/// <summary>
/// Converts the specified <paramref name="value"/> into its raw format and writes it to the output.
/// The value has to be of enumeration or primitive type. Only one WriteRawValue call should be made before this object gets disposed.
/// </summary>
/// <param name="value">The (non-binary) value to write.</param>
/// <remarks>We do not accept binary values here; WriteBinaryValue should be used for binary data.</remarks>
internal void WriteRawValue(object value)
{
Debug.Assert(!(value is byte[]), "!(value is byte[])");
string valueAsString;
ODataEnumValue enumValue = value as ODataEnumValue;
if (enumValue != null)
{
this.textWriter.Write(enumValue.Value);
}
else if (value is Geometry || value is Geography)
{
PrimitiveConverter.Instance.WriteJsonLight(value, jsonWriter);
}
else if (ODataRawValueUtils.TryConvertPrimitiveToString(value, out valueAsString))
{
this.textWriter.Write(valueAsString);
}
else
{
// throw an exception because the value is neither enum nor primitive
throw new ODataException(Strings.ODataUtils_CannotConvertValueToRawString(value.GetType().FullName));
}
}
/// <summary>
/// Asynchronously reads the content of a text reader as string and, if <paramref name="expectedPrimitiveTypeReference"/> is specified and primitive type conversion
/// is enabled, converts the string to the expected type.
/// </summary>
/// <param name="expectedPrimitiveTypeReference">The expected type of the value being read or null if no type conversion should be performed.</param>
/// <returns>
/// A task that represents the asynchronous read operation.
/// The value of the TResult parameter contains the raw value that was read from the text reader
/// either as string or converted to the provided <paramref name="expectedPrimitiveTypeReference"/>.
/// </returns>
private async Task <object> ReadRawValueAsync(IEdmPrimitiveTypeReference expectedPrimitiveTypeReference)
{
string stringFromStream = await this.textReader.ReadToEndAsync()
.ConfigureAwait(false);
if (expectedPrimitiveTypeReference != null && this.MessageReaderSettings.EnablePrimitiveTypeConversion)
{
return(ODataRawValueUtils.ConvertStringToPrimitive(stringFromStream, expectedPrimitiveTypeReference));
}
else
{
return(stringFromStream);
}
}
/// <summary>
/// Reads the content of a text reader as string and, if <paramref name="expectedPrimitiveTypeReference"/> is specified and primitive type conversion
/// is enabled, converts the string to the expected type.
/// </summary>
/// <param name="expectedPrimitiveTypeReference">The expected type of the value being read or null if no type conversion should be performed.</param>
/// <returns>The raw value that was read from the text reader either as string or converted to the provided <paramref name="expectedPrimitiveTypeReference"/>.</returns>
private object ReadRawValue(IEdmPrimitiveTypeReference expectedPrimitiveTypeReference)
{
string stringFromStream = this.textReader.ReadToEnd();
object rawValue;
if (expectedPrimitiveTypeReference != null && this.MessageReaderSettings.EnablePrimitiveTypeConversion)
{
rawValue = ODataRawValueUtils.ConvertStringToPrimitive(stringFromStream, expectedPrimitiveTypeReference);
}
else
{
rawValue = stringFromStream;
}
return(rawValue);
}
/// <summary>
/// Asynchronously converts the specified <paramref name="value"/> into its raw format and writes it to the output.
/// The value has to be of enumeration or primitive type. Only one WriteRawValue call should be made before this object gets disposed.
/// </summary>
/// <param name="value">The (non-binary) value to write.</param>
/// <returns>A task that represents the asynchronous write operation.</returns>
/// <remarks>We do not accept binary values here; WriteBinaryValue should be used for binary data.</remarks>
/// <returns>A task that represents the asynchronous write operation.</returns>
internal Task WriteRawValueAsync(object value)
{
Debug.Assert(!(value is byte[]), "!(value is byte[])");
if (value is ODataEnumValue enumValue)
{
return(this.textWriter.WriteAsync(enumValue.Value));
}
if (value is Geometry || value is Geography)
{
return(TaskUtils.GetTaskForSynchronousOperation(
() => PrimitiveConverter.Instance.WriteJsonLight(value, jsonWriter)));
}
if (ODataRawValueUtils.TryConvertPrimitiveToString(value, out string valueAsString))
{
return(this.textWriter.WriteAsync(valueAsString));
}
// Value is neither enum nor primitive
return(TaskUtils.GetFaultedTask(
new ODataException(Strings.ODataUtils_CannotConvertValueToRawString(value.GetType().FullName))));
}
