public Message <T> DeSerialize <T>(byte[] bytes, IBasicProperties messageProperties)
{
try
{
Encoding encoding = Encoding.GetEncoding(messageProperties.ContentEncoding);
string instanceJson = encoding?.GetString(bytes);
if (string.IsNullOrEmpty(instanceJson))
{
throw new ArgumentOutOfRangeException("IBasicProperties.ContentEncoding");
}
if (!messageProperties.IsContentTypePresent())
{
throw new ArgumentNullException("IBasicProperties.ContentType");
}
if (!messageProperties.ContentType.Equals(this.ContentType))
{
throw new ArgumentException("Message ContentType do not match with selected Serialization ContentType", "IBasicProperties.ContentType");
}
var instance = JsonConvert.DeserializeObject <Message <T> >(instanceJson);
return(instance);
}
catch (Exception ex)
{
return(null);
}
}
public void CopyFrom(IBasicProperties basicProperties)
{
Preconditions.CheckNotNull(basicProperties, "basicProperties");
if (basicProperties.IsContentTypePresent()) ContentType = basicProperties.ContentType;
if (basicProperties.IsContentEncodingPresent()) ContentEncoding = basicProperties.ContentEncoding;
if (basicProperties.IsDeliveryModePresent()) DeliveryMode = basicProperties.DeliveryMode;
if (basicProperties.IsPriorityPresent()) Priority = basicProperties.Priority;
if (basicProperties.IsCorrelationIdPresent()) CorrelationId = basicProperties.CorrelationId;
if (basicProperties.IsReplyToPresent()) ReplyTo = basicProperties.ReplyTo;
if (basicProperties.IsExpirationPresent()) Expiration = basicProperties.Expiration;
if (basicProperties.IsMessageIdPresent()) MessageId = basicProperties.MessageId;
if (basicProperties.IsTimestampPresent()) Timestamp = basicProperties.Timestamp.UnixTime;
if (basicProperties.IsTypePresent()) Type = basicProperties.Type;
if (basicProperties.IsUserIdPresent()) UserId = basicProperties.UserId;
if (basicProperties.IsAppIdPresent()) AppId = basicProperties.AppId;
if (basicProperties.IsClusterIdPresent()) ClusterId = basicProperties.ClusterId;
if (basicProperties.IsHeadersPresent())
{
foreach (var header in basicProperties.Headers)
{
Headers.Add(header.Key, header.Value);
}
}
}
public override async Task HandleBasicDeliver(
string consumerTag,
ulong deliveryTag,
bool redelivered,
string exchange,
string routingKey,
IBasicProperties properties,
ReadOnlyMemory <byte> body)
{
// Sanity checks.
if (!properties.IsTypePresent() || !properties.IsContentTypePresent())
{
this.logger.LogWarning(
"Found an unknow message {DeliveryTag} from {Exchange}.",
deliveryTag,
exchange);
this.Model.BasicReject(deliveryTag, false);
return;
}
var eventType = properties.Type;
var contentType = properties.ContentType;
if (!string.Equals(contentType, "application/x-protobuf", StringComparison.OrdinalIgnoreCase))
{
// We want to requeue because the other instance with newer version may supports this new content type.
this.Model.BasicReject(deliveryTag, true);
return;
}
// Find a consumer to handler.
if (!this.consumers.TryGetValue(eventType, out var consumer))
{
// We need to requeue if other instance can handle this event. This can happen if the newer version of
// the service is deployed alongside old version.
var requeue = await this.coordinator.IsEventSupportedAsync(eventType);
this.Model.BasicReject(deliveryTag, requeue);
return;
}
// Invoke consumer.
var @event = consumer.EventParser.ParseFrom(new ReadOnlySequence <byte>(body));
try
{
await consumer.ConsumeExecutor(@event);
}
catch (Exception ex)
{
this.logger.LogError(ex, "Unhandled exception occurred while consuming event {EventType}.", eventType);
// Requeue to let the other instance handle this event instead.
this.Model.BasicReject(deliveryTag, true);
return;
}
this.Model.BasicAck(deliveryTag, false);
}
internal static ReceivedMessage CreateFromEvent(BasicDeliverEventArgs eventArgs)
{
if (eventArgs == null)
{
return(null);
}
IBasicProperties properties = eventArgs.BasicProperties;
ReceivedMessage message = null;
switch (properties?.ContentType?.ToLower())
{
case ContentTypes.JSON:
message = new JSONReceivedMessage();
break;
case ContentTypes.Binary:
message = new BinaryReceivedMessage();
break;
default:
message = new ReceivedMessage();
break;
}
message.DeliveryTag = eventArgs.DeliveryTag;
message.Exchange = eventArgs.Exchange;
message.RoutingKey = eventArgs.RoutingKey;
message.Redelivered = eventArgs.Redelivered;
message.ContentType = (properties?.IsContentTypePresent() ?? false) ? properties.ContentType : null;
message.ContentEncoding = (properties?.IsContentEncodingPresent() ?? false) ? properties.ContentEncoding : null;
message.ExpandBody(eventArgs.Body);
if (properties == null)
{
return(message);
}
message.Type = properties.IsTypePresent() ? properties.Type : null;
message.Persistent = properties.IsDeliveryModePresent() && properties.Persistent;
message.ApplicationName = properties.IsAppIdPresent() ? properties.AppId : null;
message.ReplyToQueueName = properties.IsReplyToPresent() ? properties.ReplyTo : null;
if (properties.IsMessageIdPresent() && Guid.TryParse(properties.MessageId, out Guid messageId))
{
message.MessageID = messageId;
}
if (properties.IsCorrelationIdPresent() && Guid.TryParse(properties.CorrelationId, out Guid correlationId))
{
message.CorrelationID = correlationId;
}
return(message);
}
public MessageBasicProperties(IBasicProperties basicProperties)
: this()
{
ContentTypePresent = basicProperties.IsContentTypePresent();
ContentEncodingPresent = basicProperties.IsContentEncodingPresent();
HeadersPresent = basicProperties.IsHeadersPresent();
DeliveryModePresent = basicProperties.IsDeliveryModePresent();
PriorityPresent = basicProperties.IsPriorityPresent();
CorrelationIdPresent = basicProperties.IsCorrelationIdPresent();
ReplyToPresent = basicProperties.IsReplyToPresent();
ExpirationPresent = basicProperties.IsExpirationPresent();
MessageIdPresent = basicProperties.IsMessageIdPresent();
TimestampPresent = basicProperties.IsTimestampPresent();
TypePresent = basicProperties.IsTypePresent();
UserIdPresent = basicProperties.IsUserIdPresent();
AppIdPresent = basicProperties.IsAppIdPresent();
ClusterIdPresent = basicProperties.IsClusterIdPresent();
ContentType = basicProperties.ContentType;
ContentEncoding = basicProperties.ContentEncoding;
DeliveryMode = basicProperties.DeliveryMode;
Priority = basicProperties.Priority;
CorrelationId = basicProperties.CorrelationId;
ReplyTo = basicProperties.ReplyTo;
Expiration = basicProperties.Expiration;
MessageId = basicProperties.MessageId;
Timestamp = basicProperties.Timestamp.UnixTime;
Type = basicProperties.Type;
UserId = basicProperties.UserId;
AppId = basicProperties.AppId;
ClusterId = basicProperties.ClusterId;
if(basicProperties.IsHeadersPresent())
{
foreach (DictionaryEntry header in basicProperties.Headers)
{
Headers.Add(header.Key, header.Value);
}
}
}
public void CopyFrom(IBasicProperties basicProperties)
{
ContentTypePresent = basicProperties.IsContentTypePresent();
ContentEncodingPresent = basicProperties.IsContentEncodingPresent();
HeadersPresent = basicProperties.IsHeadersPresent();
DeliveryModePresent = basicProperties.IsDeliveryModePresent();
PriorityPresent = basicProperties.IsPriorityPresent();
CorrelationIdPresent = basicProperties.IsCorrelationIdPresent();
ReplyToPresent = basicProperties.IsReplyToPresent();
ExpirationPresent = basicProperties.IsExpirationPresent();
MessageIdPresent = basicProperties.IsMessageIdPresent();
TimestampPresent = basicProperties.IsTimestampPresent();
TypePresent = basicProperties.IsTypePresent();
UserIdPresent = basicProperties.IsUserIdPresent();
AppIdPresent = basicProperties.IsAppIdPresent();
ClusterIdPresent = basicProperties.IsClusterIdPresent();
ContentType = basicProperties.ContentType;
ContentEncoding = basicProperties.ContentEncoding;
DeliveryMode = basicProperties.DeliveryMode;
Priority = basicProperties.Priority;
CorrelationId = basicProperties.CorrelationId;
ReplyTo = basicProperties.ReplyTo;
Expiration = basicProperties.Expiration;
MessageId = basicProperties.MessageId;
Timestamp = basicProperties.Timestamp.UnixTime;
Type = basicProperties.Type;
UserId = basicProperties.UserId;
AppId = basicProperties.AppId;
ClusterId = basicProperties.ClusterId;
if (basicProperties.IsHeadersPresent())
{
foreach (DictionaryEntry header in basicProperties.Headers)
{
Headers.Add(header.Key, header.Value);
}
}
}
public static void CopyTo(this IBasicProperties basicProperties, MessageProperties messageProperties)
{
if (basicProperties.IsContentTypePresent())
{
messageProperties.ContentType = basicProperties.ContentType;
}
if (basicProperties.IsContentEncodingPresent())
{
messageProperties.ContentEncoding = basicProperties.ContentEncoding;
}
if (basicProperties.IsDeliveryModePresent())
{
messageProperties.DeliveryMode = basicProperties.DeliveryMode;
}
if (basicProperties.IsPriorityPresent())
{
messageProperties.Priority = basicProperties.Priority;
}
if (basicProperties.IsCorrelationIdPresent())
{
messageProperties.CorrelationId = basicProperties.CorrelationId;
}
if (basicProperties.IsReplyToPresent())
{
messageProperties.ReplyTo = basicProperties.ReplyTo;
}
if (basicProperties.IsExpirationPresent())
{
messageProperties.Expiration = basicProperties.Expiration;
}
if (basicProperties.IsMessageIdPresent())
{
messageProperties.MessageId = basicProperties.MessageId;
}
if (basicProperties.IsTimestampPresent())
{
messageProperties.Timestamp = basicProperties.Timestamp.UnixTime;
}
if (basicProperties.IsTypePresent())
{
messageProperties.Type = basicProperties.Type;
}
if (basicProperties.IsUserIdPresent())
{
messageProperties.UserId = basicProperties.UserId;
}
if (basicProperties.IsAppIdPresent())
{
messageProperties.AppId = basicProperties.AppId;
}
if (basicProperties.IsClusterIdPresent())
{
messageProperties.ClusterId = basicProperties.ClusterId;
}
if (basicProperties.IsHeadersPresent())
{
foreach (DictionaryEntry header in basicProperties.Headers)
{
messageProperties.Headers.Add(header.Key, header.Value);
}
}
}
/// <summary>
/// Copies IBasicProperties to MessageProperties
/// </summary>
public void CopyFrom(IBasicProperties basicProperties)
{
Preconditions.CheckNotNull(basicProperties, "basicProperties");
if (basicProperties.IsContentTypePresent())
{
ContentType = basicProperties.ContentType;
}
if (basicProperties.IsContentEncodingPresent())
{
ContentEncoding = basicProperties.ContentEncoding;
}
if (basicProperties.IsDeliveryModePresent())
{
DeliveryMode = basicProperties.DeliveryMode;
}
if (basicProperties.IsPriorityPresent())
{
Priority = basicProperties.Priority;
}
if (basicProperties.IsCorrelationIdPresent())
{
CorrelationId = basicProperties.CorrelationId;
}
if (basicProperties.IsReplyToPresent())
{
ReplyTo = basicProperties.ReplyTo;
}
if (basicProperties.IsExpirationPresent())
{
Expiration = basicProperties.Expiration;
}
if (basicProperties.IsMessageIdPresent())
{
MessageId = basicProperties.MessageId;
}
if (basicProperties.IsTimestampPresent())
{
Timestamp = basicProperties.Timestamp.UnixTime;
}
if (basicProperties.IsTypePresent())
{
Type = basicProperties.Type;
}
if (basicProperties.IsUserIdPresent())
{
UserId = basicProperties.UserId;
}
if (basicProperties.IsAppIdPresent())
{
AppId = basicProperties.AppId;
}
if (basicProperties.IsClusterIdPresent())
{
ClusterId = basicProperties.ClusterId;
}
if (basicProperties.IsHeadersPresent())
{
Headers = basicProperties.Headers == null || basicProperties.Headers.Count == 0
? null
: new Dictionary <string, object>(basicProperties.Headers);
}
}
public void CopyFrom(IBasicProperties basicProperties)
{
GuardHelper.ArgumentNotNull(() => basicProperties);
if (basicProperties.IsContentTypePresent())
{
ContentType = basicProperties.ContentType;
}
if (basicProperties.IsContentEncodingPresent())
{
ContentEncoding = basicProperties.ContentEncoding;
}
if (basicProperties.IsDeliveryModePresent())
{
DeliveryMode = basicProperties.DeliveryMode;
}
if (basicProperties.IsPriorityPresent())
{
Priority = basicProperties.Priority;
}
if (basicProperties.IsCorrelationIdPresent())
{
CorrelationId = basicProperties.CorrelationId;
}
if (basicProperties.IsReplyToPresent())
{
ReplyTo = basicProperties.ReplyTo;
}
if (basicProperties.IsExpirationPresent())
{
Expiration = basicProperties.Expiration;
}
if (basicProperties.IsMessageIdPresent())
{
MessageId = basicProperties.MessageId;
}
if (basicProperties.IsTimestampPresent())
{
Timestamp = basicProperties.Timestamp.UnixTime;
}
if (basicProperties.IsTypePresent())
{
Type = basicProperties.Type;
}
if (basicProperties.IsUserIdPresent())
{
UserId = basicProperties.UserId;
}
if (basicProperties.IsAppIdPresent())
{
AppId = basicProperties.AppId;
}
if (basicProperties.IsClusterIdPresent())
{
ClusterId = basicProperties.ClusterId;
}
if (basicProperties.IsHeadersPresent())
{
foreach (var header in basicProperties.Headers)
{
Headers.Add(header.Key, header.Value);
}
}
}
/// <summary>
/// Converts IBasicProperties to a string
/// </summary>
/// <param name="extendedObject">objected being extended</param>
/// <returns>formatted string of IBasicProperties</returns>
public static string ToFormatString(this IBasicProperties extendedObject)
{
Arguments.NotNull(extendedObject, nameof(extendedObject));
var sb = new StringBuilder();
if (extendedObject.IsAppIdPresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "AppID:{0} ", extendedObject.AppId);
}
if (extendedObject.IsClusterIdPresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "ClusterId:{0} ", extendedObject.ClusterId);
}
if (extendedObject.IsContentEncodingPresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "ContentEncoding:{0} ", extendedObject.ContentEncoding);
}
if (extendedObject.IsContentTypePresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "ContentType:{0} ", extendedObject.ContentType);
}
if (extendedObject.IsCorrelationIdPresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "CorrelationId:{0} ", extendedObject.CorrelationId);
}
if (extendedObject.IsDeliveryModePresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "DeliveryMode:{0} ", extendedObject.DeliveryMode);
}
if (extendedObject.IsExpirationPresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "Expiration:{0} ", extendedObject.Expiration);
}
if (extendedObject.IsHeadersPresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "Headers:{0} ", extendedObject.Headers.StringFormat());
}
if (extendedObject.IsMessageIdPresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "MessageId:{0} ", extendedObject.MessageId);
}
if (extendedObject.IsPriorityPresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "Priority:{0} ", extendedObject.Priority);
}
if (extendedObject.IsReplyToPresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "ReplyTo:{0} ", extendedObject.ReplyTo);
}
if (extendedObject.IsTimestampPresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "Timestamp:{0} ", extendedObject.Timestamp);
}
if (extendedObject.IsTypePresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "Type:{0} ", extendedObject.Type);
}
if (extendedObject.IsUserIdPresent())
{
sb.AppendFormat(CultureInfo.InvariantCulture, "UserId:{0} ", extendedObject.UserId);
}
return(sb.ToString());
}
public override async Task HandleBasicDeliver(
string consumerTag,
ulong deliveryTag,
bool redelivered,
string exchange,
string routingKey,
IBasicProperties properties,
ReadOnlyMemory <byte> body)
{
// FIXME: This is a workaround until this PR is released:
// https://github.com/rabbitmq/rabbitmq-dotnet-client/pull/946
await Task.Yield();
// Sanity checks.
if (!properties.IsTypePresent() || !properties.IsContentTypePresent())
{
this.logger.LogWarning(
"Found an unknow message {DeliveryTag} from {Exchange}.",
deliveryTag,
exchange);
this.Model.BasicReject(deliveryTag, false);
return;
}
var eventType = properties.Type;
var contentType = properties.ContentType;
if (!string.Equals(contentType, "application/x-protobuf", StringComparison.OrdinalIgnoreCase))
{
// We want to requeue because the other instance with newer version may supports this new content type.
this.logger.LogInformation(
"Unknown content type {ContentType} for message {Message}.",
contentType,
eventType);
this.Model.BasicReject(deliveryTag, true);
return;
}
// Find a consumer to handler.
if (!this.consumers.TryGetValue(eventType, out var consumer))
{
// We need to requeue if other instance can handle this event. This can happen if the newer version of
// the service is deployed alongside old version.
var requeue = await this.coordinator.IsEventSupportedAsync(eventType);
if (requeue)
{
this.logger.LogInformation(
"Returning {EventType} to the queue due to we cannot handle it but the other instance can.",
eventType);
this.Model.BasicReject(deliveryTag, true);
}
else
{
this.logger.LogInformation("Discarding {EventType} due to we cannot handle it.", eventType);
}
return;
}
// Deserialize event.
var @event = consumer.EventParser.ParseFrom(new ReadOnlySequence <byte>(body));
this.logger.LogInformation("Consuming {EventType}: {EventData}", eventType, @event);
// Invoke consumer.
bool?success = null;
try
{
success = await consumer.ConsumeExecutor(@event);
}
catch (Exception ex)
{
this.logger.LogError(ex, "Unhandled exception occurred while consuming {EventType}.", eventType);
}
if (success == null || !success.Value)
{
// Requeue to let the other instance handle this event instead.
this.logger.LogInformation(
"Unsuccessful consuming {EventType}, returning event to the queue to let other instance handle it.",
eventType);
this.Model.BasicReject(deliveryTag, true);
return;
}
this.logger.LogInformation("Successful consuming {EventType}.", eventType);
this.Model.BasicAck(deliveryTag, false);
}
internal void CopyFrom(IBasicProperties from)
{
if (from == null)
throw new ArgumentNullException(nameof(from));
if (from.IsAppIdPresent()) AppId = from.AppId;
if (from.IsClusterIdPresent()) ClusterId = from.ClusterId;
if (from.IsContentEncodingPresent()) ContentEncoding = from.ContentEncoding;
if (from.IsContentTypePresent()) ContentType = from.ContentType;
if (from.IsCorrelationIdPresent()) CorrelationId = from.CorrelationId;
if (from.IsDeliveryModePresent()) DeliveryMode = (LinkMessageDeliveryMode) from.DeliveryMode;
if (from.IsReplyToPresent()) ReplyTo = from.ReplyTo;
if (from.IsExpirationPresent()) Expiration = TimeSpan.FromMilliseconds(int.Parse(from.Expiration));
if (from.IsMessageIdPresent()) MessageId = from.MessageId;
if (from.IsTimestampPresent()) TimeStamp = from.Timestamp.UnixTime;
if (from.IsTypePresent()) Type = from.Type;
if (from.IsUserIdPresent()) UserId = from.UserId;
if (from.IsPriorityPresent()) Priority = from.Priority;
if (from.IsHeadersPresent())
{
foreach (var header in from.Headers)
{
Headers[header.Key] = header.Value;
}
}
}
public EasyNetQMessageProperties(IBasicProperties basicProperties) : this()
{
if (basicProperties.IsContentTypePresent())
{
ContentType = basicProperties.ContentType;
}
if (basicProperties.IsContentEncodingPresent())
{
ContentEncoding = basicProperties.ContentEncoding;
}
if (basicProperties.IsDeliveryModePresent())
{
DeliveryMode = basicProperties.DeliveryMode;
}
if (basicProperties.IsPriorityPresent())
{
Priority = basicProperties.Priority;
}
if (basicProperties.IsCorrelationIdPresent())
{
CorrelationId = basicProperties.CorrelationId;
}
if (basicProperties.IsReplyToPresent())
{
ReplyTo = basicProperties.ReplyTo;
}
if (basicProperties.IsExpirationPresent())
{
Expiration = basicProperties.Expiration;
}
if (basicProperties.IsMessageIdPresent())
{
MessageId = basicProperties.MessageId;
}
if (basicProperties.IsTimestampPresent())
{
Timestamp = basicProperties.Timestamp.UnixTime;
}
if (basicProperties.IsTypePresent())
{
Type = basicProperties.Type;
}
if (basicProperties.IsUserIdPresent())
{
UserId = basicProperties.UserId;
}
if (basicProperties.IsAppIdPresent())
{
AppId = basicProperties.AppId;
}
if (basicProperties.IsClusterIdPresent())
{
ClusterId = basicProperties.ClusterId;
}
if (!basicProperties.IsHeadersPresent())
{
return;
}
foreach (var(key, value) in basicProperties.Headers)
{
Headers.Add(key, (byte[])value);
}
}