public void Run(string uri)
{
// Declaration of all the pipeline blocks
GetTopStoriesBlock getTopStories = new GetTopStoriesBlock();
FilterTopStoriesBlock filterTopStories = new FilterTopStoriesBlock();
TraverseTopStoriesCommentsBlock traverseTopStoriesComments = new TraverseTopStoriesCommentsBlock();
ComputeTopCommentsPerStoryBlock computeTopCommentsPerStory = new ComputeTopCommentsPerStoryBlock();
// Links and interactions betwen each block
getTopStories.block.LinkTo(filterTopStories.block, this.linkOptions);
filterTopStories.bufferBlock.LinkTo(traverseTopStoriesComments.block, linkOptions);
traverseTopStoriesComments.bufferBlock.LinkTo(computeTopCommentsPerStory.block, linkOptions);
// Triggering the start of the pipeline
getTopStories.block.Post(uri);
getTopStories.block.Complete();
// Buffer at the end of the pipeline
var receiveAllStories = Task.Run(() =>
{
for (int i = 0; i <= Constants.NBSTORIES; i++)
{
this.topStories.Add(computeTopCommentsPerStory.bufferBlock.Receive()); // Wait for all the Top Story objects to arrive
}
});
Task.WaitAll(receiveAllStories);
computeTopCommentsPerStory.bufferBlock.Complete(); //End of the pipeline
commentsRegistry = traverseTopStoriesComments.commentsRegistry;
printResults();
}
public void FilterTopStoriesBlock()
{
Queue <string> ids = new Queue <string>();
ids.Enqueue("21018236");
ids.Enqueue("21020682");
ids.Enqueue("21020682");
FilterTopStoriesBlock filterTopStoriesBlock = new FilterTopStoriesBlock();
filterTopStoriesBlock.block.Post(ids);
List <Item> results = new List <Item>();
for (int i = 0; i < ids.Count; i++)
{
var item = filterTopStoriesBlock.bufferBlock.ReceiveAsync().Result;
results.Add(item);
}
Assert.AreEqual(results.Count, ids.Count);
}
