public async Task <ScrapingResult> RunAsync()
{
Status = ScrapingStatus.Running;
var result = new ScrapingResult(this);
result.StartedAt = DateTime.UtcNow;
result.Target = Target?.ToString();
result.Selector = Selectors;
try
{
// スクレイピング処理のコア（時間がかかります！）
var(status, text) = IsDynamic
? await RunDynamicAsync()
: await RunStaticAsync();
result.Status = status;
result.Text = text;
Status = status == "success"
? ScrapingStatus.Succeeded
: ScrapingStatus.Failed;
}
catch (Exception e)
{
result.Status = "exception";
result.Text = e.Message;
Status = ScrapingStatus.Failed;
}
result.CompletedAt = DateTime.UtcNow;
return(result);
}
public string Diff(ScrapingResult result)
{
if (result?.Text == null)
{
return("Target is null");
}
if (result?.Text == Text)
{
return("Defference is not find.");
}
var diff = new HtmlDiff.HtmlDiff(result?.Text, Text);
var html = diff.Build();
return(html);
}
public void ShowResult(Models.ScrapingResult result)
{
var window = App.Current.Windows
.OfType <Views.ScrapingResultWindow>()
.FirstOrDefault(_ => _.ViewModel.Result.Id == result.Id);
if (window != null)
{
window.Activate(); return;
}
window = new Views.ScrapingResultWindow(result)
{
Owner = MainWindow,
WindowStartupLocation = WindowStartupLocation.CenterOwner,
};
window.Show();
}
public void NotifyErrorDetected(Models.ScrapingRule scraper, Models.ScrapingResult result)
{
Instance.ShowInformation($"{scraper.Name} is failed.");
ErrorDetected?.Invoke(this, new DetectedEventArgs(scraper, result));
}
public DetectedEventArgs(Models.ScrapingRule scraper, Models.ScrapingResult result)
{
Scraper = scraper;
Result = result;
}
