async Task <TopicInfo> CreateMissingTopic(Topology.Entities.Topic topic, CancellationToken cancellationToken)
{
Dictionary <string, string> attributes = topic.TopicAttributes.ToDictionary(x => x.Key, x => x.Value.ToString());
var request = new CreateTopicRequest(topic.EntityName)
{
Attributes = attributes,
Tags = topic.TopicTags.Select(x => new Tag
{
Key = x.Key,
Value = x.Value
}).ToList()
};
var response = await _client.CreateTopicAsync(request, cancellationToken).ConfigureAwait(false);
response.EnsureSuccessfulResponse();
var topicArn = response.TopicArn;
var attributesResponse = await _client.GetTopicAttributesAsync(topicArn, cancellationToken).ConfigureAwait(false);
attributesResponse.EnsureSuccessfulResponse();
var missingTopic = new TopicInfo(topic.EntityName, topicArn, attributesResponse.Attributes);
if (topic.Durable && topic.AutoDelete == false)
{
lock (_durableTopics)
_durableTopics[missingTopic.EntityName] = missingTopic;
}
return(missingTopic);
}
public Task <TopicInfo> Get(Topology.Entities.Topic topic, CancellationToken cancellationToken)
{
lock (_durableTopics)
if (_durableTopics.TryGetValue(topic.EntityName, out var queueInfo))
{
return(Task.FromResult(queueInfo));
}
return(_nameIndex.Get(topic.EntityName, key => CreateMissingTopic(topic, cancellationToken)));
}
async Task <TopicInfo> CreateMissingTopic(Topology.Entities.Topic topic, CancellationToken cancellationToken)
{
Dictionary <string, string> attributes = topic.TopicAttributes.ToDictionary(x => x.Key, x => x.Value.ToString());
var request = new CreateTopicRequest(topic.EntityName)
{
Attributes = attributes,
Tags = topic.TopicTags.Select(x => new Tag
{
Key = x.Key,
Value = x.Value
}).ToList()
};
var topicArn = string.Empty;
var doesTopicExistResponse = await _client.GetTopicAttributesAsync(topic.EntityName).ConfigureAwait(false);
if (doesTopicExistResponse.DoesQueueExists())
{
topicArn = doesTopicExistResponse.Attributes
.First(t =>
t.Key.Equals("TopicArn", System.StringComparison.InvariantCultureIgnoreCase))
.Value;
}
var response = await _client.CreateTopicAsync(request, cancellationToken).ConfigureAwait(false);
response.EnsureSuccessfulResponse();
topicArn = response.TopicArn;
var attributesResponse = await _client.GetTopicAttributesAsync(topicArn, cancellationToken).ConfigureAwait(false);
attributesResponse.EnsureSuccessfulResponse();
var missingTopic = new TopicInfo(topic.EntityName, topicArn, attributesResponse.Attributes);
if (topic.Durable && topic.AutoDelete == false)
{
lock (_durableTopics)
_durableTopics[missingTopic.EntityName] = missingTopic;
}
return(missingTopic);
}
public Task <TopicInfo> Get(Topology.Entities.Topic topic)
{
lock (_durableTopics)
{
if (_durableTopics.TryGetValue(topic.EntityName, out var queueInfo))
{
return(Task.FromResult(queueInfo));
}
}
return(_nameIndex.Get(topic.EntityName, async key =>
{
try
{
return await CreateMissingTopic(topic).ConfigureAwait(false);
}
catch (InvalidParameterException e) when(e.Message.Contains("Topic already exists"))
{
return await GetExistingTopic(topic.EntityName).ConfigureAwait(false);
}
}));
}
public Task <TopicInfo> Get(Topology.Entities.Topic topic)
{
lock (_durableTopics)
{
if (_durableTopics.TryGetValue(topic.EntityName, out var queueInfo))
{
return(Task.FromResult(queueInfo));
}
}
return(_nameIndex.Get(topic.EntityName, async key =>
{
try
{
return await GetExistingTopic(topic.EntityName).ConfigureAwait(false);
}
catch (AmazonSqsTransportException e) when(e.Message.Equals($"Topic {topic.EntityName} not found."))
{
return await CreateMissingTopic(topic).ConfigureAwait(false);
}
}));
}
public Task <TopicInfo> Get(Topology.Entities.Topic topic, CancellationToken cancellationToken)
{
return(_nameIndex.Get(topic.EntityName, key => CreateMissingTopic(topic, cancellationToken)));
}
Task ClientContext.DeleteTopic(Topic topic)
{
return(_context.DeleteTopic(topic));
}
Task ClientContext.CreateQueueSubscription(Topic topic, Queue queue)
{
return(_context.CreateQueueSubscription(topic, queue));
}
Task <string> ClientContext.CreateTopic(Topic topic)
{
return(_context.CreateTopic(topic));
}
