public static Dictionary<string, int> MediaElements(TweetDataEntities db)
{
Dictionary<string,int> imagesSize = new Dictionary<string,int>();
foreach (var a in db.Media) {
if (a.ImageArea == null) continue;
imagesSize[a.Url] = a.ImageArea.Value;
}
//var ordered = imagesSize.OrderByDescending(i => i.Value);
return imagesSize;
}
private static void getSites(TweetDataEntities db, params string[] query)
{
HashSet<string> seenUrls = new HashSet<string>();
var twitter = new TwitterSearch();
int count = 0;
foreach (var tweet in twitter.Search(100, 10, query)) {
Debug.Print("Tweet number: " + (++count).ToString());
if (db.Tweets.Any(i => i.TweetID == tweet.TweetID)) {
continue;
}
Tweet t = new Tweet() { Text = tweet.Text, TweetID = tweet.TweetID };
Debug.Print("Tweet: " + tweet.Text);
Regex linkParser = new Regex(@"\b(?:http://|www\.)\S+\b", RegexOptions.Compiled | RegexOptions.IgnoreCase);
foreach (Match m in linkParser.Matches(tweet.Text)) {
string fullUrl = "";
try {
fullUrl = m.Value.ExpandUrl();
} catch {
continue;
}
if (db.Websites.Any(i => i.Url == fullUrl)) {
continue;
}
Debug.Print("Website: " + fullUrl);
var page = new PageScraper(fullUrl);
var website = new Website() { Url = page.Url, Title = page.Title() };
db.Websites.AddObject(website);
foreach (var m2 in page.Media()) {
if (db.Media.Any(i => i.Url == m2.Link)) {
continue;
}
Medium media = new Medium() { Type = m2.Type, Url = m2.Link, SourceSite = website.Url };
if (m2.Type == "image") {
var request = WebRequest.Create(m2.Link);
using (var response = request.GetResponse())
using (var stream = response.GetResponseStream())
using (var b = Bitmap.FromStream(stream)) {
int area = b.Width * b.Height;
media.ImageArea = area;
}
}
db.Media.AddObject(media);
Debug.Print("Media element: " + m2.Link);
}
t.LinkSite = website.Url;
}
db.Tweets.AddObject(t);
db.SaveChanges();
}
}
private static void addImageSizes(TweetDataEntities db)
{
foreach(var m in db.Media){
if(m.ImageArea == null && m.Type == "image"){
try {
var request = WebRequest.Create(m.Url);
using (var response = request.GetResponse())
using (var stream = response.GetResponseStream())
using (var b = Bitmap.FromStream(stream)) {
int area = b.Width * b.Height;
m.ImageArea = area;
}
db.SaveChanges();
}
catch{
}
}
}
}
private static void popularSites(TweetDataEntities db)
{
Dictionary<string, int> siteCounter = new Dictionary<string, int>();
foreach (var a in db.Tweets) {
if (a.LinkSite == null) continue;
var website = db.Websites.Where(i => i.Url == a.LinkSite).First();
string title = website.Title;
if (title == null) { continue; }
if (siteCounter.ContainsKey(title)) {
siteCounter[title]++;
} else {
siteCounter[title] = 1;
}
}
var ordered = siteCounter.OrderByDescending(i => i.Value);
}
//private static void parseTable() {
// //string path = @"C:\Users\Amichai\Data\New feed items (1)(2).csv";
// string root = @"C:\Users\Amichai\Data\documents-export-2013-05-22\Feed\Dashboard";
// foreach (var path in Directory.GetFiles(root)) {
// if (path.Split('.').Last() != "csv") continue;
// var f = new StreamReader(path);
// var text = f.ReadToEnd();
// var db = DataStore.DataUtil.GetDataContext();
// var lines = text.Split('\n');
// var csv = new CsvHelper.CsvReader(new StreamReader(path));
// while (csv.Read()) {
// var record = csv.CurrentRecord;
// var dateString = record[0];
// var idx = dateString.IndexOf("at");
// dateString = dateString.Remove(idx, 3);
// addTweet(db, DateTime.Parse(dateString), record[1], record[2], record[3]);
// }
// }
//}
private static void clearTweets(TweetDataEntities db)
{
foreach (var tweet in db.Tweet2) {
db.DeleteObject(tweet);
}
db.SaveChanges();
}
