public TrendsList GetTrends()
{
TrendsList trendsList = CategorizationCacheHelper.ReadTrends();
if (trendsList == null)
{
trendsList = new TrendsList();
CategoriesList categoriesList = GetCategories();
foreach (CategoryItem categoryItem in categoriesList)
{
TopicList topicList = categoryItem.TopicList;
foreach (TopicItem topicItem in topicList)
{
TrendItem trendItem = new TrendItem(topicItem.ID, topicItem.Title, ProviderEnum.TheInternetBuzz);
trendItem.Weight = 3;
trendsList.AddTrend(trendItem);
}
}
trendsList.Sort();
CategorizationCacheHelper.CacheTrends(trendsList);
}
return trendsList;
}
static private TrendsList BuildTrends()
{
TrendsList trendsList = null;
try
{
ManualResetEvent[] doneEvents = new ManualResetEvent[8];
doneEvents[0] = new ManualResetEvent(false);
TrendsWorkerThread googleWorkerThread = new TrendsWorkerThread(new GoogleTrendsService(), doneEvents[0]);
ThreadPool.QueueUserWorkItem(googleWorkerThread.ThreadPoolCallback);
doneEvents[1] = new ManualResetEvent(false);
TrendsWorkerThread twitterWorkerThread = new TrendsWorkerThread(new TwitterTrendsService(), doneEvents[1]);
ThreadPool.QueueUserWorkItem(twitterWorkerThread.ThreadPoolCallback);
doneEvents[2] = new ManualResetEvent(false);
TrendsWorkerThread yahooWorkerThread = new TrendsWorkerThread(new YahooTrendsService(), doneEvents[2]);
ThreadPool.QueueUserWorkItem(yahooWorkerThread.ThreadPoolCallback);
doneEvents[3] = new ManualResetEvent(false);
TrendsWorkerThread whatTheTrendCurrentWorkerThread = new TrendsWorkerThread(new WhatTheTrendTrendsService(WhatTheTrendTypeEnum.Current), doneEvents[3]);
ThreadPool.QueueUserWorkItem(whatTheTrendCurrentWorkerThread.ThreadPoolCallback);
doneEvents[4] = new ManualResetEvent(false);
TrendsWorkerThread whatTheTrendMostEditedWorkerThread = new TrendsWorkerThread(new WhatTheTrendTrendsService(WhatTheTrendTypeEnum.MostEdited), doneEvents[4]);
ThreadPool.QueueUserWorkItem(whatTheTrendMostEditedWorkerThread.ThreadPoolCallback);
doneEvents[5] = new ManualResetEvent(false);
TrendsWorkerThread alexaWorkerThread = new TrendsWorkerThread(new AlexaTrendsService(), doneEvents[5]);
ThreadPool.QueueUserWorkItem(alexaWorkerThread.ThreadPoolCallback);
doneEvents[6] = new ManualResetEvent(false);
TrendsWorkerThread iTunesSongsWorkerThread = new TrendsWorkerThread(new ITunesTrendsService(ITunesTypeEnum.Top10Songs), doneEvents[6]);
ThreadPool.QueueUserWorkItem(iTunesSongsWorkerThread.ThreadPoolCallback);
doneEvents[7] = new ManualResetEvent(false);
TrendsWorkerThread iTunesMoviesWorkerThread = new TrendsWorkerThread(new ITunesTrendsService(ITunesTypeEnum.TopMovies), doneEvents[7]);
ThreadPool.QueueUserWorkItem(iTunesMoviesWorkerThread.ThreadPoolCallback);
WaitHandle.WaitAll(doneEvents);
trendsList = new TrendsList();
trendsList.AddTrends(googleWorkerThread.TrendsList);
trendsList.AddTrends(yahooWorkerThread.TrendsList);
trendsList.AddTrends(twitterWorkerThread.TrendsList);
trendsList.AddTrends(whatTheTrendCurrentWorkerThread.TrendsList);
trendsList.AddTrends(whatTheTrendMostEditedWorkerThread.TrendsList);
trendsList.AddTrends(alexaWorkerThread.TrendsList);
trendsList.AddTrends(iTunesSongsWorkerThread.TrendsList);
trendsList.AddTrends(iTunesMoviesWorkerThread.TrendsList);
if (trendsList != null && trendsList.Count() > 0)
{
trendsList.Sort(new TrendItemComparer(TrendItemComparerEnum.Title));
}
}
catch (Exception exception)
{
ErrorService.Log("TrendsBuilder", "BuildTrends", "", exception);
}
return trendsList;
}