private async Task WorkLoopAsync()
{
var nodes = await nodesManager.CreateWorkerNodesAsync();
workerNodes = nodes.ToArray();
var nodesEnumerator = nodesStream().GetEnumerator();
nodesEnumerator.MoveNext();
var assignments = assignmentsStream();
foreach (var assignmentFunction in assignments)
{
var assignedNode = nodesEnumerator.Current;
var advanceNode = await assignmentFunction(assignedNode);
if (advanceNode)
{
nodesEnumerator.MoveNext();
}
}
await nodesManager.StopWorkerNodesAsync();
IEnumerable <Func <int, Task <bool> > > assignmentsStream()
{
while (filepathsToTokenize.Any())
{
var nextFilePath = filepathsToTokenize.Dequeue();
yield return((nodeId) => {
var assignment = new TokenizationAssignment(nodeId, nextFilePath);
messageSink.PostTokenizationAssignment(assignment);
return Task.FromResult(true);
});
}
yield return((nodeId) => tokenizationDoneTCS.Task.ContinueWith(_ => false));
foreach (var node in workerNodes)
{
yield return((nodeId) => {
var assignment = new ConfigureNormalizationAssignment(nodeId, generatedDocuments.Count(), termDocumentAppearances);
messageSink.PostConfigureNormalizationAssignment(assignment);
return Task.FromResult(true);
});
}
while (documentsToNormalize.Any())
{
var nextDocument = documentsToNormalize.Dequeue();
yield return((nodeId) => {
var assignment = new NormalizationAssignment(nodeId, nextDocument);
messageSink.PostNormalizationAssignment(assignment);
return Task.FromResult(true);
});
}
yield break;
}
IEnumerable <int> nodesStream()
{
var currentNodeId = 0;
while (true)
{
currentNodeId++;
if (currentNodeId > workerNodes.Length)
{
currentNodeId = 0;
}
yield return(currentNodeId);
}
}
}