/// <summary>
/// Parses the string argument to a video statistics object.
/// </summary>
/// <param name="data">The XML data string.</param>
/// <returns>The video statistics object.</returns>
public static AjaxVideoStatistics Parse(string data)
{
// Create a new video statistics object
AjaxVideoStatistics statistics = new AjaxVideoStatistics();
// Parse the root
statistics.ParseRoot(XDocument.Parse(data));
return statistics;
}
/// <summary>
/// An event handler called when executing the demo.
/// </summary>
private void OnDemo()
{
try
{
this.statistics = AjaxVideoStatistics.Parse(Resources.DemoOldInsightsAjax);
this.statisticsVideo = this.textBox.Text;
this.menuItemViews.Enabled = this.statistics.ViewsHistory != null;
this.menuItemLikes.Enabled = this.statistics.LikesHistory != null;
this.menuItemDislikes.Enabled = this.statistics.DislikesHistory != null;
this.menuItemFavorites.Enabled = this.statistics.FavoritesHistory != null;
this.menuItemComments.Enabled = this.statistics.CommentsHistory != null;
this.menuItemPopularity.Enabled = this.statistics.ViewsHistory != null;
this.buttonComment.Enabled = true;
if (this.statistics.ViewsHistory != null)
{
this.OnChartViewsCount(null, null);
}
// Compute the event type.
LogEventType eventType = (this.statistics.ViewsHistory.DiscoveryExceptions.Count == 0) ? LogEventType.Success : LogEventType.SuccessWarning;
string eventMessage = eventType == LogEventType.Success ?
"The request for the web statistics of the video \'{0}\' completed successfully." :
"The request for the web statistics of the video \'{0}\' completed partially successfully. However, some errors have occurred.";
// If there are failures, create a new subevent list.
List<LogEvent> subevents = null;
if (this.statistics.ViewsHistory.DiscoveryExceptions.Count != 0)
{
subevents = new List<LogEvent>();
foreach (AjaxException exception in this.statistics.ViewsHistory.DiscoveryExceptions)
{
subevents.Add(new LogEvent(
LogEventLevel.Important,
LogEventType.Error,
DateTime.MinValue,
ControlWebStatistics.logSource,
"Parsing of a views history discovery event has failed.",
null,
exception));
}
}
// Log
this.log.Add(this.crawler.Log.Add(
LogEventLevel.Verbose,
eventType,
ControlWebStatistics.logSource,
eventMessage,
new object[] { this.textBox.Text },
null,
subevents));
}
catch (AjaxRequestException exception)
{
this.log.Add(this.crawler.Log.Add(
LogEventLevel.Normal,
LogEventType.Warning,
ControlWebStatistics.logSource,
"The web statistics for the video \'{0}\' are not available. {1}",
new object[] { this.textBox.Text, exception.Message },
exception));
}
catch (WebException exception)
{
if (exception.Status == WebExceptionStatus.RequestCanceled)
this.log.Add(this.crawler.Log.Add(
LogEventLevel.Verbose,
LogEventType.Canceled,
ControlWebStatistics.logSource,
"The request for the web statistics of the video \'{0}\' has been canceled.",
new object[] { this.textBox.Text }));
else
this.log.Add(this.crawler.Log.Add(
LogEventLevel.Important,
LogEventType.Error,
ControlWebStatistics.logSource,
"The request for the web statistics of the video \'{0}\' failed. {1}",
new object[] { this.textBox.Text, exception.Message },
exception));
}
catch (Exception exception)
{
this.log.Add(this.crawler.Log.Add(
LogEventLevel.Important,
LogEventType.Error,
ControlWebStatistics.logSource,
"The request for the web statistics of the video \'{0}\' failed. {1}",
new object[] { this.textBox.Text, exception.Message },
exception));
}
finally
{
this.buttonStart.Enabled = true;
this.buttonStop.Enabled = false;
this.textBox.Enabled = true;
}
}
