private void worker_DoWork(object sender, DoWorkEventArgs e)
{
int err_count = 5;
EXDocument doc = new EXDocument();
int count = 0;
while (count < tweet_count)
{
if (worker.CancellationPending == true)
{
break;
}
// 直近の200件を取得
string xml = GetTweets(username, max_id);
if (xml == "")
{
err_count--;
if (err_count < 0)
{
MessageBox.Show("取得エラー発生", APPTITLE, MessageBoxButtons.OK, MessageBoxIcon.Error);
worker.CancelAsync();
return;
}
// 1秒待つ
System.Threading.Thread.Sleep(1000);
continue;
}
doc.LoadXML(xml);
EXElements items = doc * "status";
foreach (EXElement status in items)
{
string id = status / "id";
if (max_id == id)
{
continue;
}
count++;
Tweet twi = new Tweet()
{
Num = count,
ID = status / "id",
text = status / "text",
created_at = status / "created_at"
};
_tweets.Add(twi);
max_id = twi.ID;
}
worker.ReportProgress(count * 100 / tweet_count);
if (items.Count < 200)
{
break;
}
}
}
/// <summary>
/// 子要素を探索する
/// </summary>
/// <param name="doc"></param>
/// <param name="s"></param>
/// <returns></returns>
public static EXElements operator /(EXDocument doc, string tag)
{
EXElements items = new EXElements();
if (doc.DocumentElement != null)
{
if (doc.DocumentElement.Name == tag)
{
items.Add(doc.DocumentElement);
}
}
return items;
}
/// <summary>
/// 子孫要素を探索する
/// </summary>
/// <param name="doc"></param>
/// <param name="tag"></param>
/// <returns></returns>
public static EXElements operator *(EXDocument doc, string tag)
{
EXElements items = new EXElements();
if (doc.DocumentElement != null)
{
if (doc.DocumentElement.Name == tag)
{
items.Add(doc.DocumentElement);
}
items.AddRange( doc.DocumentElement.selectNodes(tag, true));
}
return items ;
}
