CreateQueueAsync(
string queueName,
int shardIndexPadding)
{
if (string.IsNullOrWhiteSpace(queueName))
throw new ArgumentNullException(nameof(queueName));
var queueShardName = SlinqyQueueShard.GenerateFirstShardName(
slinqyQueueName: queueName,
shardIndexPadding: shardIndexPadding
);
// Call the function to create the first physical queue shard to establish the virtual queue.
// No need to do anything with the returned shard...
var shard = await this.physicalQueueService
.CreateQueue(queueShardName)
.ConfigureAwait(false);
var shardMonitor = new SlinqyQueueShardMonitor(
queueName,
this.physicalQueueService
);
await shardMonitor
.Start()
.ConfigureAwait(false);
var queue = new SlinqyQueue(
shardMonitor
);
this.slinqyQueues.TryAdd(queueName, queue);
return queue;
}
SlinqyAgent(
IPhysicalQueueService queueService,
SlinqyQueueShardMonitor slinqyQueueShardMonitor,
double storageCapacityScaleOutThreshold)
: this(queueService, slinqyQueueShardMonitor, storageCapacityScaleOutThreshold, 1)
{
}
SlinqyAgent(
IPhysicalQueueService queueService,
SlinqyQueueShardMonitor slinqyQueueShardMonitor,
double storageCapacityScaleOutThreshold)
{
this.monitoring = false;
this.queueService = queueService;
this.queueShardMonitor = slinqyQueueShardMonitor;
this.storageCapacityScaleOutThreshold = storageCapacityScaleOutThreshold;
}
SlinqyAgent(
IPhysicalQueueService queueService,
SlinqyQueueShardMonitor slinqyQueueShardMonitor,
double storageCapacityScaleOutThreshold,
int shardIndexPadding)
{
this.queueService = queueService;
this.queueShardMonitor = slinqyQueueShardMonitor;
this.storageCapacityScaleOutThreshold = storageCapacityScaleOutThreshold;
this.shardIndexPadding = shardIndexPadding;
}
SlinqyAgent(
IPhysicalQueueService queueService,
SlinqyQueueShardMonitor slinqyQueueShardMonitor,
double storageCapacityScaleOutThreshold,
int shardIndexPadding)
{
this.queueService = queueService;
this.queueShardMonitor = slinqyQueueShardMonitor;
this.storageCapacityScaleOutThreshold = storageCapacityScaleOutThreshold;
this.shardIndexPadding = shardIndexPadding;
}
CreateQueueAsync(
string queueName,
int shardIndexPadding)
{
// TODO: Refactor - Much of this functionality overlaps with the Agent,
// let Agent create first shard too and remove this code.
if (string.IsNullOrWhiteSpace(queueName))
{
throw new ArgumentNullException(nameof(queueName));
}
var queueShardName = SlinqyQueueShard.GenerateFirstShardName(
slinqyQueueName: queueName,
shardIndexPadding: shardIndexPadding
);
// Call the function to create the first physical queue shard to establish the virtual queue.
// No need to do anything with the returned shard...
var shard = await this.physicalQueueService
.CreateQueue(queueShardName)
.ConfigureAwait(false);
var shardMonitor = new SlinqyQueueShardMonitor(
queueName,
this.physicalQueueService
);
await shardMonitor
.Start()
.ConfigureAwait(false);
var queue = new SlinqyQueue(
shardMonitor
);
this.slinqyQueues.TryAdd(queueName, queue);
return(queue);
}
CreateQueue(
CreateQueueCommandModel createQueueModel)
{
if (createQueueModel == null)
throw new ArgumentNullException(nameof(createQueueModel));
if (!this.ModelState.IsValid)
return this.Request.CreateErrorResponse(HttpStatusCode.BadRequest, this.ModelState);
var monitor = new SlinqyQueueShardMonitor(
createQueueModel.QueueName,
PhysicalQueueService
);
slinqyAgent = new SlinqyAgent(
PhysicalQueueService,
monitor,
createQueueModel.StorageCapacityScaleOutThresholdPercentage / 100D,
4
);
await slinqyAgent.Start();
SlinqyQueues.Add(
createQueueModel.QueueName,
new SlinqyQueue(monitor)
);
var response = new HttpResponseMessage(HttpStatusCode.Created) {
Content = new ObjectContent<QueueInformationViewModel>(
new QueueInformationViewModel(
queueName: createQueueModel.QueueName,
maxQueueSizeMegabytes: createQueueModel.MaxQueueSizeMegabytes,
currentQueueSizeBytes: 0
),
new JsonMediaTypeFormatter()
)
};
return response;
}
SlinqyAgent(
IPhysicalQueueService queueService,
SlinqyQueueShardMonitor slinqyQueueShardMonitor,
double storageCapacityScaleOutThreshold)
: this(queueService, slinqyQueueShardMonitor, storageCapacityScaleOutThreshold, 1)
{
}
SlinqyQueue(
SlinqyQueueShardMonitor slinqyQueueShardMonitor)
{
this.queueShardMonitor = slinqyQueueShardMonitor;
}
CreateQueue(
CreateQueueCommandModel createQueueModel)
{
if (createQueueModel == null)
throw new ArgumentNullException(nameof(createQueueModel));
var queue = await SlinqyQueueClient.CreateQueueAsync(
queueName: createQueueModel.QueueName,
shardIndexPadding: 4
);
var monitor = new SlinqyQueueShardMonitor(
createQueueModel.QueueName,
PhysicalQueueService
);
slinqyAgent = new SlinqyAgent(
PhysicalQueueService,
monitor,
createQueueModel.StorageCapacityScaleOutThresholdPercentage / 100D
);
await slinqyAgent.Start();
return new QueueInformationViewModel(
queue.Name,
queue.MaxQueueSizeMegabytes,
queue.CurrentQueueSizeBytes
);
}
SlinqyQueue(
SlinqyQueueShardMonitor slinqyQueueShardMonitor)
{
this.queueShardMonitor = slinqyQueueShardMonitor;
}