static void Main(string[] args)
{
if (!EnsureSingleLoad())
{
Console.WriteLine("{0}: Another Instance Currently Runing", DateTime.Now);
return;
}
var streamMonitors = new List<DualStreamMonitor>();
UsersCollection.PrimaryUsers().AsParallel()
.ForAll(u =>
{
var streamMonitor = new DualStreamMonitor(u, Console.Out);
streamMonitor.Start();
lock (streamMonitors)
{
streamMonitors.Add(streamMonitor);
}
});
while (Console.ReadLine() != "exit") ;
streamMonitors.ForEach(s => s.Stop());
}
static async Task ShowFavoritesAsync(TwitterContext twitterCtx)
{
const int PerQueryFavCount = 200;
// set from a value that you previously saved
ulong sinceID = 1;
var favsResponse =
await
(from fav in twitterCtx.Favorites
where fav.Type == FavoritesType.Favorites &&
fav.Count == PerQueryFavCount
select fav)
.ToListAsync();
if (favsResponse == null)
{
Console.WriteLine("No favorites returned from Twitter.");
return;
}
var favList = new List<Favorites>(favsResponse);
// first tweet processed on current query
ulong maxID = favList.Min(fav => fav.StatusID) - 1;
do
{
favsResponse =
await
(from fav in twitterCtx.Favorites
where fav.Type == FavoritesType.Favorites &&
fav.Count == PerQueryFavCount &&
fav.SinceID == sinceID &&
fav.MaxID == maxID
select fav)
.ToListAsync();
if (favsResponse == null || favsResponse.Count == 0) break;
// reset first tweet to avoid re-querying the
// same list you just received
maxID = favsResponse.Min(fav => fav.StatusID) - 1;
favList.AddRange(favsResponse);
} while (favsResponse.Count > 0);
favList.ForEach(fav =>
{
if (fav != null && fav.User != null)
Console.WriteLine(
"Name: {0}, Tweet: {1}",
fav.User.ScreenNameResponse, fav.Text);
});
// save this in your db for this user so you can set
// sinceID accurately the next time you do a query
// and avoid querying the same tweets again.
ulong newSinceID = favList.Max(fav => fav.SinceID);
}
static void ConditionalSearchDemo(TwitterContext twitterCtx)
{
const string TwitterSearchGeocodeFormat = "{0},{1},{2}";
string query = "Twitter";
string language = null;
string locale = null;
string latitude = "37.781157";
string longitude = "-122.398720";
uint radius = 1;
string radiusUnitType = "mi";
Type searchType = typeof(Search);
ParameterExpression srch = Expression.Parameter(searchType, "srch");
var predicates = new List<Expression>();
if (!string.IsNullOrWhiteSpace(query))
{
predicates.Add(
Expression.Equal(
Expression.Property(srch, "Query"),
Expression.Constant(query)));
}
if (!string.IsNullOrWhiteSpace(language))
{
predicates.Add(
Expression.Equal(
Expression.Property(srch, "SearchLanguage"),
Expression.Constant(language)));
}
if (!string.IsNullOrWhiteSpace(locale))
{
predicates.Add(
Expression.Equal(
Expression.Property(srch, "Locale"),
Expression.Constant(locale)));
}
if (!string.IsNullOrWhiteSpace(longitude) && !string.IsNullOrWhiteSpace(latitude) && radius > 0)
{
var radiusString = string.Format("{0}{1}", radius, radiusUnitType.ToString().ToLower());
var geoCodeParameter = String.Format(TwitterSearchGeocodeFormat, latitude, longitude, radiusString);
predicates.Add(
Expression.Equal(
Expression.Property(srch, "GeoCode"),
Expression.Constant(geoCodeParameter)));
}
BinaryExpression expr = Expression.Equal(
Expression.Property(srch, "Type"),
Expression.Constant(SearchType.Search));
predicates.ForEach(pred => expr = Expression.AndAlso(expr, pred));
var searchLambda =
Expression.Lambda(expr, srch) as Expression<Func<Search, bool>>;
var response =
twitterCtx.Search
.Where(searchLambda)
.SingleOrDefault();
Console.WriteLine("\nQuery: {0}\n", response.SearchMetaData.Query);
response.Statuses.ForEach(entry =>
Console.WriteLine(
"ID: {0, -15}, Source: {1}\nContent: {2}\n",
entry.StatusID, entry.Source, entry.Text));
}
static void PrintTweetsResults(List<Status> tweets)
{
if (tweets != null)
tweets.ForEach(tweet =>
{
if (tweet != null && tweet.User != null)
Console.WriteLine(
"ID: [{0}] Name: {1}\n\tTweet: {2}",
tweet.StatusID, tweet.User.ScreenNameResponse, tweet.Text);
});
}
public static List<Tweet> Get(string screenname, ulong maxStatusID)
{
int fetchMultiplier = int.Parse(
!string.IsNullOrEmpty(ConfigurationManager.AppSettings["FetchMultiplier"]) ?
ConfigurationManager.AppSettings["FetchMultiplier"] : "10");
List<string> screenNames = new List<string>();
screenNames.AddRange(TwitterModel.Instance.GetRelevantScreenNames(screenname));
List<Tweet> tweets = new List<Tweet>();
screenNames.ForEach(name =>
{
var t = Repository<Tweet>.Instance.Query(name + TwitterModel.TWEETS);
if (t != null) tweets.AddRange(t);
});
if (tweets != null)
tweets = tweets.OrderByDescending(t => t.Status.CreatedAt).ToList();
if (tweets == null ||
tweets.Count() < 5 ||
!tweets.Select(t => t.Status.CreatedAt).IsWithinAverageRecurrenceInterval(multiplier: fetchMultiplier))
{
var lastStatusID = (tweets != null && tweets.Count() > 0) ? ulong.Parse(tweets.First().Status.StatusID) : 0;
var user = UsersCollection.Single(screenname) ?? UsersCollection.PrimaryUser();
if (user.CanAuthorize)
{
try
{
Expression<Func<Status, bool>> where;
if (maxStatusID > 0 && lastStatusID > 0)
where = (s => s.MaxID == maxStatusID &&
s.SinceID == lastStatusID &&
s.ScreenName == screenname &&
s.IncludeEntities == true &&
s.Type == StatusType.User &&
s.Count == 50);
else if (lastStatusID > 0)
where = (s => s.SinceID == lastStatusID &&
s.ScreenName == screenname &&
s.IncludeEntities == true &&
s.Type == StatusType.Home &&
s.Count == 200);
else
where = (s => s.ScreenName == screenname &&
s.IncludeEntities == true &&
s.Type == StatusType.Home &&
s.Count == 200);
var statuses = TwitterModel.Instance.GetAuthorizedTwitterContext(user.TwitterScreenName)
.Status
.Where(where)
.ToList();
List<Tweet> results;
if (statuses != null && statuses.Count > 0)
results = statuses.Select(s => new Tweet(s)).ToList();
else
results = null;
return results;
}
catch { return null; }
}
}
return null;
}
static async Task DoPagedSearchAsync(TwitterContext twitterCtx)
{
const int MaxSearchEntriesToReturn = 100;
string searchTerm = "twitter";
// oldest id you already have for this search term
ulong sinceID = 1;
// used after the first query to track current session
ulong maxID;
var combinedSearchResults = new List<Status>();
List<Status> searchResponse =
await
(from search in twitterCtx.Search
where search.Type == SearchType.Search &&
search.Query == searchTerm &&
search.Count == MaxSearchEntriesToReturn &&
search.SinceID == sinceID
select search.Statuses)
.SingleOrDefaultAsync();
combinedSearchResults.AddRange(searchResponse);
ulong previousMaxID = ulong.MaxValue;
do
{
// one less than the newest id you've just queried
maxID = searchResponse.Min(status => status.StatusID) - 1;
Debug.Assert(maxID < previousMaxID);
previousMaxID = maxID;
searchResponse =
await
(from search in twitterCtx.Search
where search.Type == SearchType.Search &&
search.Query == searchTerm &&
search.Count == MaxSearchEntriesToReturn &&
search.MaxID == maxID &&
search.SinceID == sinceID
select search.Statuses)
.SingleOrDefaultAsync();
combinedSearchResults.AddRange(searchResponse);
} while (searchResponse.Any());
combinedSearchResults.ForEach(tweet =>
Console.WriteLine(
"\n User: {0} ({1})\n Tweet: {2}",
tweet.User.ScreenNameResponse,
tweet.User.UserIDResponse,
tweet.Text));
}
