private void FireUpTheWork()
{
//TODO: No exception handling so far. Handle it better.
//TODO: Don't block as much as possible and don't use Result
var globalStreamGroupName = "Global";
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
State["cts"] = cancellationTokenSource;
var isCycleOn = true;
using (TwitterConnector twitterConnector = new TwitterConnector()) {
//TODO: Response message might be other than 200
// if this is the case, the other parts of the code might not work
// as excpected. Handle this.
var response = twitterConnector.GetLocationBasedConnection("-165.0,-75.0,165.0,75.0").Result;
//var response = twitterConnector.GetSampleFirehoseConnection().Result;
var contentResult = response.Content.ReadAsStreamAsync().Result;
using (var streamReader = new StreamReader(contentResult, Encoding.UTF8)) {
var clients = GlobalHost.ConnectionManager.GetHubContext<TwitterHub>().Clients;
var cts = (CancellationTokenSource)State["cts"];
while (!streamReader.EndOfStream && !cts.IsCancellationRequested) {
var result = streamReader.ReadLine();
if (!string.IsNullOrEmpty(result)) {
//TODO: Handle the exceptions here.
var tweetJToken = JsonConvert.DeserializeObject<dynamic>(result);
var tweetObj = tweetJToken["text"];
if (tweetObj != null) {
var tweetText = tweetObj.ToString();
var userScreenName = tweetJToken["user"]["screen_name"].ToString();
var imageUrl = tweetJToken["user"]["profile_image_url_https"].ToString();
var tweet = new TweetMapR.Entities.Model.Tweet() { TweetText = tweetText, User = userScreenName, ImageUrl = imageUrl };
var coordinatesRoot = tweetJToken["coordinates"];
if (coordinatesRoot != null && !string.IsNullOrEmpty(coordinatesRoot.ToString())) {
var coordinates = coordinatesRoot["coordinates"];
tweet.Longitude = coordinates[0];
tweet.Latitude = coordinates[1];
}
//broadcast tweet to global stream subscribers
clients.Group(globalStreamGroupName).broadcastTweet(tweet);
}
}
}
if (cts.IsCancellationRequested) {
isCycleOn = false;
}
}
}
if (isCycleOn) {
FireUpTheWork();
}
}
private void FireUpTheWork()
{
//TODO: No exception handling so far. Handle it better.
//TODO: Don't block as much as possible and don't use Result
var globalStreamGroupName = "Global";
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
State["cts"] = cancellationTokenSource;
var isCycleOn = true;
using (TwitterConnector twitterConnector = new TwitterConnector()) {
//TODO: Response message might be other than 200
// if this is the case, the other parts of the code might not work
// as excpected. Handle this.
var response = twitterConnector.GetLocationBasedConnection("-165.0,-75.0,165.0,75.0").Result;
//var response = twitterConnector.GetSampleFirehoseConnection().Result;
var contentResult = response.Content.ReadAsStreamAsync().Result;
using (var streamReader = new StreamReader(contentResult, Encoding.UTF8)) {
var clients = GlobalHost.ConnectionManager.GetHubContext <TwitterHub>().Clients;
var cts = (CancellationTokenSource)State["cts"];
while (!streamReader.EndOfStream && !cts.IsCancellationRequested)
{
var result = streamReader.ReadLine();
if (!string.IsNullOrEmpty(result))
{
//TODO: Handle the exceptions here.
var tweetJToken = JsonConvert.DeserializeObject <dynamic>(result);
var tweetObj = tweetJToken["text"];
if (tweetObj != null)
{
var tweetText = tweetObj.ToString();
var userScreenName = tweetJToken["user"]["screen_name"].ToString();
var imageUrl = tweetJToken["user"]["profile_image_url_https"].ToString();
var tweet = new TweetMapR.Entities.Model.Tweet()
{
TweetText = tweetText, User = userScreenName, ImageUrl = imageUrl
};
var coordinatesRoot = tweetJToken["coordinates"];
if (coordinatesRoot != null && !string.IsNullOrEmpty(coordinatesRoot.ToString()))
{
var coordinates = coordinatesRoot["coordinates"];
tweet.Longitude = coordinates[0];
tweet.Latitude = coordinates[1];
}
//broadcast tweet to global stream subscribers
clients.Group(globalStreamGroupName).broadcastTweet(tweet);
}
}
}
if (cts.IsCancellationRequested)
{
isCycleOn = false;
}
}
}
if (isCycleOn)
{
FireUpTheWork();
}
}
