/// <summary>
/// Decodes the "data_base64" property provided within a structured-mode message,
/// populating the <see cref="CloudEvent.Data"/> property accordingly.
/// </summary>
/// <param name="cloudEvent"></param>
/// <remarks>
/// <para>
/// This implementation converts JSON string tokens to byte arrays, and fails for any other token type.
/// </para>
/// <para>
/// Override this method to provide more specialized conversions.
/// </para>
/// </remarks>
/// <param name="dataBase64Element">The "data_base64" property value within the structured-mode message. Will not be null, and will
/// not have a null token type.</param>
/// <param name="cloudEvent">The event being decoded. This should not be modified except to
/// populate the <see cref="CloudEvent.Data"/> property, but may be used to provide extra
/// information such as the data content type. Will not be null.</param>
/// <returns>The data to populate in the <see cref="CloudEvent.Data"/> property.</returns>
protected virtual void DecodeStructuredModeDataBase64Property(JsonElement dataBase64Element, CloudEvent cloudEvent)
{
if (dataBase64Element.ValueKind != JsonValueKind.String)
{
throw new ArgumentException($"Structured mode property '{DataBase64PropertyName}' must be a string, when present.");
}
cloudEvent.Data = dataBase64Element.GetBytesFromBase64();
}
protected override void DecodeStructuredModeDataBase64Property(JsonElement dataBase64Element, CloudEvent cloudEvent)
{
if (cloudEvent.DataContentType == TextBinaryContentType && dataBase64Element.ValueKind == JsonValueKind.String)
{
cloudEvent.Data = Encoding.UTF8.GetString(dataBase64Element.GetBytesFromBase64());
}
else
{
base.DecodeStructuredModeDataBase64Property(dataBase64Element, cloudEvent);
}
}
public static object Cast(this JsonElement fromValue, Field field)
{
switch (field.DataType)
{
case DataTypeEnum.Booelan:
return(fromValue.GetBoolean());
case DataTypeEnum.Integer:
case DataTypeEnum.Float:
return(fromValue.GetDouble());
case DataTypeEnum.String:
case DataTypeEnum.GUID:
return(fromValue.GetString());
case DataTypeEnum.DateTime:
case DataTypeEnum.Date:
return(fromValue.GetDateTime());
case DataTypeEnum.Time:
var val = fromValue.GetDateTime();
return(new TimeSpan(val.Hour, val.Minute, val.Second));
case DataTypeEnum.Binary:
return(fromValue.GetBytesFromBase64());
case DataTypeEnum.Void:
case DataTypeEnum.Array:
throw new NotImplementedException();
case DataTypeEnum.Object:
throw new NotImplementedException();
default:
throw new NotImplementedException();
}
}
public BinaryContent(JsonElement jsonElement)
{
_content = new MemoryStream(jsonElement.GetBytesFromBase64());
}
public override void SerializeBytes(ref byte[] val)
{
val = currentNode.GetBytesFromBase64();
}