static Stream MapDataAttributeToStream(CloudEvent cloudEvent, ICloudEventFormatter formatter)
{
Stream stream;
if (cloudEvent.Data is byte[])
{
stream = new MemoryStream((byte[])cloudEvent.Data);
}
else if (cloudEvent.Data is string)
{
stream = new MemoryStream(Encoding.UTF8.GetBytes((string)cloudEvent.Data));
}
else if (cloudEvent.Data is Stream)
{
stream = (Stream)cloudEvent.Data;
}
else
{
stream = new MemoryStream(formatter.EncodeAttribute(cloudEvent.SpecVersion,
CloudEventAttributes.DataAttributeName(cloudEvent.SpecVersion),
cloudEvent.Data, cloudEvent.Extensions.Values));
}
return(stream);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="cloudEvent">CloudEvent</param>
/// <param name="contentMode">Content mode. Structured or binary.</param>
/// <param name="formatter">Event formatter</param>
public CloudEventContent(CloudEvent cloudEvent, ContentMode contentMode, ICloudEventFormatter formatter)
{
if (contentMode == ContentMode.Structured)
{
inner = new InnerByteArrayContent(formatter.EncodeStructuredEvent(cloudEvent, out var contentType));
Headers.ContentType = new MediaTypeHeaderValue(contentType.MediaType);
MapHeaders(cloudEvent);
return;
}
if (cloudEvent.Data is byte[])
{
inner = new InnerByteArrayContent((byte[])cloudEvent.Data);
}
else if (cloudEvent.Data is string)
{
inner = new InnerStringContent((string)cloudEvent.Data);
}
else if (cloudEvent.Data is Stream)
{
inner = new InnerStreamContent((Stream)cloudEvent.Data);
}
else
{
inner = new InnerByteArrayContent(formatter.EncodeAttribute(cloudEvent.SpecVersion, CloudEventAttributes.DataAttributeName(cloudEvent.SpecVersion),
cloudEvent.Data, cloudEvent.Extensions.Values));
}
Headers.ContentType = new MediaTypeHeaderValue(cloudEvent.DataContentType?.MediaType);
MapHeaders(cloudEvent);
}
public static void Update <T>(this IBasicProperties self, MotorCloudEvent <byte[]> cloudEvent,
RabbitMQPublisherConfig <T> config, ICloudEventFormatter cloudEventFormatter)
{
var messagePriority = cloudEvent.Extension <RabbitMQPriorityExtension>()?.Priority ??
config.DefaultPriority;
if (messagePriority.HasValue)
{
self.Priority = messagePriority.Value;
}
var dictionary = new Dictionary <string, object>();
foreach (var attr in cloudEvent.GetAttributes())
{
if (string.Equals(attr.Key, CloudEventAttributes.DataAttributeName(cloudEvent.SpecVersion)) ||
string.Equals(attr.Key,
CloudEventAttributes.DataContentTypeAttributeName(cloudEvent.SpecVersion)) ||
string.Equals(attr.Key, RabbitMQPriorityExtension.PriorityAttributeName) ||
string.Equals(attr.Key, RabbitMQBindingConfigExtension.ExchangeAttributeName) ||
string.Equals(attr.Key, RabbitMQBindingConfigExtension.RoutingKeyAttributeName))
{
continue;
}
dictionary.Add($"{CloudEventPrefix}{attr.Key}",
cloudEventFormatter.EncodeAttribute(cloudEvent.SpecVersion, attr.Key, attr.Value,
cloudEvent.GetExtensions().Values));
}
self.Headers = dictionary;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="cloudEvent">CloudEvent</param>
/// <param name="contentMode">Content mode. Structured or binary.</param>
/// <param name="formatter">Event formatter</param>
public CloudEventContent(CloudEvent cloudEvent, ContentMode contentMode, ICloudEventFormatter formatter)
{
if (contentMode == ContentMode.Structured)
{
inner = new InnerByteArrayContent(formatter.EncodeStructuredEvent(cloudEvent, out var contentType));
// This is optional in the specification, but can be useful.
MapHeaders(cloudEvent, includeDataContentType: true);
Headers.ContentType = new MediaTypeHeaderValue(contentType.MediaType);
return;
}
if (cloudEvent.Data is byte[])
{
inner = new InnerByteArrayContent((byte[])cloudEvent.Data);
}
else if (cloudEvent.Data is string)
{
inner = new InnerStringContent((string)cloudEvent.Data);
}
else if (cloudEvent.Data is Stream)
{
inner = new InnerStreamContent((Stream)cloudEvent.Data);
}
else
{
inner = new InnerByteArrayContent(formatter.EncodeAttribute(cloudEvent.SpecVersion, CloudEventAttributes.DataAttributeName(cloudEvent.SpecVersion),
cloudEvent.Data, cloudEvent.Extensions.Values));
}
var mediaType = cloudEvent.DataContentType?.MediaType
?? throw new ArgumentException(Strings.ErrorContentTypeUnspecified, nameof(cloudEvent));
Headers.ContentType = new MediaTypeHeaderValue(mediaType);
MapHeaders(cloudEvent, includeDataContentType: false);
}
private void MapHeaders(CloudEvent cloudEvent, ICloudEventFormatter formatter)
{
foreach (var attr in cloudEvent.GetAttributes())
{
if (string.Equals(attr.Key, CloudEventAttributes.DataAttributeName(cloudEvent.SpecVersion)) ||
string.Equals(attr.Key, CloudEventAttributes.DataContentTypeAttributeName(cloudEvent.SpecVersion)) ||
string.Equals(attr.Key, PartitioningExtension.PartitioningKeyAttributeName))
{
continue;
}
Headers.Add(KafkaHeaderPerfix + attr.Key,
formatter.EncodeAttribute(cloudEvent.SpecVersion, attr.Key, attr.Value, cloudEvent.Extensions.Values));
}
}
