public FailedMessage Build()
{
return(new FailedMessage
{
ProcessingAttempts = processingAttempts.Select(x =>
{
var messageMetadata = new Dictionary <string, object>
{
{ "SendingEndpoint", new Contracts.Operations.EndpointDetails() },
{ "ReceivingEndpoint", new Contracts.Operations.EndpointDetails() },
};
if (messageType != null)
{
messageMetadata["MessageType"] = messageType;
}
if (contentType != null)
{
messageMetadata["ContentType"] = contentType;
}
var attempt = new FailedMessage.ProcessingAttempt
{
FailureDetails = new FailureDetails
{
Exception = new ExceptionDetails()
},
MessageMetadata = messageMetadata,
};
x(attempt);
return attempt;
}).ToList(),
Status = messageStatus
});
}
static string GetBody(FailedMessage.ProcessingAttempt last)
{
if (last.MessageMetadata.TryGetValue("Body", out var body))
{
return((string)body);
}
return(null);
}
private static string GetMessageType(FailedMessage.ProcessingAttempt processingAttempt)
{
object messageType;
if (processingAttempt.MessageMetadata.TryGetValue("MessageType", out messageType))
{
return(messageType as string);
}
return(null);
}
Task SaveToDb(string uniqueMessageId, FailedMessage.ProcessingAttempt processingAttempt, List <FailedMessage.FailureGroup> groups)
{
var documentId = FailedMessage.MakeDocumentId(uniqueMessageId);
return(store.AsyncDatabaseCommands.PatchAsync(documentId,
new[]
{
new PatchRequest
{
Name = nameof(FailedMessage.Status),
Type = PatchCommandType.Set,
Value = (int)FailedMessageStatus.Unresolved
},
new PatchRequest
{
Name = nameof(FailedMessage.ProcessingAttempts),
Type = PatchCommandType.Add,
Value = RavenJToken.FromObject(processingAttempt, Serializer) // Need to specify serializer here because otherwise the $type for EndpointDetails is missing and this causes EventDispatcher to blow up!
},
new PatchRequest
{
Name = nameof(FailedMessage.FailureGroups),
Type = PatchCommandType.Set,
Value = RavenJToken.FromObject(groups)
}
},
new[]
{
new PatchRequest
{
Name = nameof(FailedMessage.UniqueMessageId),
Type = PatchCommandType.Set,
Value = uniqueMessageId
},
new PatchRequest
{
Name = nameof(FailedMessage.Status),
Type = PatchCommandType.Set,
Value = (int)FailedMessageStatus.Unresolved
},
new PatchRequest
{
Name = nameof(FailedMessage.ProcessingAttempts),
Type = PatchCommandType.Add,
Value = RavenJToken.FromObject(processingAttempt, Serializer) // Need to specify serilaizer here because otherwise the $type for EndpointDetails is missing and this causes EventDispatcher to blow up!
},
new PatchRequest
{
Name = nameof(FailedMessage.FailureGroups),
Type = PatchCommandType.Set,
Value = RavenJToken.FromObject(groups)
}
}, JObjectMetadata
));
}
public ProcessingAttemptRecord(FailedMessage.ProcessingAttempt attempt, int index)
{
Attempt = attempt;
Index = index;
var headers = new Dictionary <string, string>(attempt.Headers);
UniqueMessageId = NewUniqueId(headers);
IsRetry = headers.ContainsKey("ServiceControl.Retry.UniqueMessageId");
}
Task SaveToDb(string uniqueMessageId, FailedMessage.ProcessingAttempt processingAttempt, List <FailedMessage.FailureGroup> groups)
{
var documentId = FailedMessage.MakeDocumentId(uniqueMessageId);
var attemptedAtField = nameof(FailedMessage.ProcessingAttempt.AttemptedAt);
var processingAttemptsField = nameof(FailedMessage.ProcessingAttempts);
var statusField = nameof(FailedMessage.Status);
var failureGroupsField = nameof(FailedMessage.FailureGroups);
var uniqueMessageIdField = nameof(FailedMessage.UniqueMessageId);
var serializedGroups = RavenJToken.FromObject(groups);
var serializedAttempt = RavenJToken.FromObject(processingAttempt, Serializer);
return(store.AsyncDatabaseCommands.PatchAsync(documentId,
new ScriptedPatchRequest
{
Script = $@"this.{statusField} = status;
this.{failureGroupsField} = failureGroups;
var duplicateIndex = _.findIndex(this.{processingAttemptsField}, function(a){{
return a.{attemptedAtField} === attempt.{attemptedAtField};
}});
if(duplicateIndex === -1){{
this.{processingAttemptsField} = _.union(this.{processingAttemptsField}, [attempt]);
}}",
Values = new Dictionary <string, object>
{
{ "status", (int)FailedMessageStatus.Unresolved },
{ "failureGroups", serializedGroups },
{ "attempt", serializedAttempt }
}
},
new ScriptedPatchRequest
{
Script = $@"this.{statusField} = status;
this.{failureGroupsField} = failureGroups;
this.{processingAttemptsField} = [attempt];
this.{uniqueMessageIdField} = uniqueMessageId;
",
Values = new Dictionary <string, object>
{
{ "status", (int)FailedMessageStatus.Unresolved },
{ "failureGroups", serializedGroups },
{ "attempt", serializedAttempt },
{ "uniqueMessageId", uniqueMessageId }
}
},
JObjectMetadata));
}
private IEnumerable <FailedMessage.FailureGroup> CreateFailureGroups(string messageType, FailedMessage.ProcessingAttempt attempt)
{
var failureDetails = new ClassifiableMessageDetails(messageType, attempt.FailureDetails, attempt);
foreach (var classifier in classifiers)
{
var failureGroupTitle = classifier.ClassifyFailure(failureDetails);
if (failureGroupTitle == null)
{
continue;
}
var prefix = string.Format(GroupPrefixFormat, attempt.Headers.ProcessingEndpointName());
var fullTitle = $"{prefix}{failureGroupTitle}";
yield return(new FailedMessage.FailureGroup
{
Id = DeterministicGuid.MakeId(classifier.Name, fullTitle).ToString(),
Title = fullTitle,
Type = classifier.Name
});
}
}
public IEnumerable <FailedMessage.FailureGroup> Enrich(string messageType, FailureDetails failureDetails, FailedMessage.ProcessingAttempt processingAttempt)
{
var details = new ClassifiableMessageDetails(messageType, failureDetails, processingAttempt);
foreach (var classifier in classifiers)
{
var classification = classifier.ClassifyFailure(details);
if (classification == null)
{
continue;
}
yield return(new FailedMessage.FailureGroup
{
Id = DeterministicGuid.MakeId(classifier.Name, classification).ToString(),
Title = classification,
Type = classifier.Name
});
}
}