public static async Task Run(
[QueueTrigger("%LoadQueueName%", Connection = "AzureWebJobsStorage")] LoadJob job,
ILogger log)
{
var blobClient = blobClients.GetOrAdd(job.Account, (accName) =>
{
string connectionEnvironmentVariableName = $"STORAGECONNECTION_{job.Account}";
string connectionString = Environment.GetEnvironmentVariable(connectionEnvironmentVariableName)
?? throw new Exception($"Cannot find connection string environment variable '{connectionEnvironmentVariableName}'.");
CloudStorageAccount account = CloudStorageAccount.Parse(connectionString);
return(account.CreateCloudBlobClient());
});
var container = blobClient.GetContainerReference(job.Container);
var inputBlock = new BufferBlock <ThermostatLog>();
var sendBlock = new ActionBlock <ThermostatLog>(async thermostatLog =>
{
var filename = $"{thermostatLog.GetFileIdentifier()}.csv";
var blob = container.GetBlockBlobReference(filename);
blob.Properties.ContentType = "text/csv";
using (var stream = await blob.OpenWriteAsync())
using (var writer = new StreamWriter(stream))
{
csvUtils.ToCsv(writer, thermostatLog.Readings);
}
}, new ExecutionDataflowBlockOptions {
MaxDegreeOfParallelism = 16
});
inputBlock.LinkTo(sendBlock, new DataflowLinkOptions {
PropagateCompletion = true
});
var random = new Random();
for (int i = 0; i < job.Size; i++)
{
inputBlock.Post(ThermostatLog.GenerateRandomLog(random));
}
inputBlock.Complete();
await sendBlock.Completion;
}
public static async Task Run(
[TimerTrigger("*/10 * * * * *")] TimerInfo myTimer,
[Queue("%LoadQueueName%", Connection = "AzureWebJobsStorage")] IAsyncCollector <LoadJob> loadJobs,
ILogger log)
{
var batchCount = int.Parse(Environment.GetEnvironmentVariable("BatchCount") ?? "10");
var batchSize = int.Parse(Environment.GetEnvironmentVariable("BatchSize") ?? "10");
var containerName = Environment.GetEnvironmentVariable("ContainerName") ?? "container01";
var accountName = Environment.GetEnvironmentVariable("AccountName") ?? "pbatumfuncblobwus2acc01";
var loadJob = new LoadJob
{
Account = accountName,
Container = containerName,
Size = batchSize
};
var bufferBlock = new BufferBlock <LoadJob>();
var addMessageBlock = new ActionBlock <LoadJob>(async job =>
{
await loadJobs.AddAsync(job);
}, new ExecutionDataflowBlockOptions {
MaxDegreeOfParallelism = 32
});
bufferBlock.LinkTo(addMessageBlock,
new DataflowLinkOptions {
PropagateCompletion = true
});
for (int i = 0; i < batchCount; i++)
{
bufferBlock.Post(loadJob);
}
bufferBlock.Complete();
await addMessageBlock.Completion;
}