public void OnReport(object UrlBaseVisitor, SWPageRankVisitor.ReportTriggerEventArgs e)
{
ReportImmediately(CWLoggerEntryType.Info,e.strReport);
}
/// <summary>
/// Performs the PagrRank algorithm. It is the method that is running on the
/// pluginThread, so it must be able to handle ThreadAbortException and
/// ThreadInterruptedException.
/// </summary>
private void PerformPageRank()
{
try
{
events.Enqueue(new EventLoggerEntry(CWLoggerEntryType.Info, DateTime.Now, "CrawlWave Url Selection Plugin thread has started with ID 0x" + Thread.CurrentThread.GetHashCode().ToString("x4")));
//Select urls from the database, update the appropriate tables and stats
try
{
ReportImmediately(CWLoggerEntryType.Info,"Starting PageRank.");
dbcon.Open();
SWRankHandlerHash rankHandler = new SWRankHandlerHash(dbcon,1, 2);
pageRank = new SWPageRankVisitor(dbcon, 200000, 50, rankHandler,0.85f);
pageRank.OnReportTrigger += (new SWUrlBaseVisitor.ReportTrigger(OnReport));
if (pageRank.VisitAllURLs(pageRank))
{
ReportImmediately(CWLoggerEntryType.Info,"Succesfully calculated PageRank.");
}
//Report();
state = PluginState.Stopped;
OnStateChanged(EventArgs.Empty);
}
catch
{}
//do processing
}
catch(ThreadAbortException)
{
//The thread was asked to abort, which means it must return at once
return;
}
catch(ThreadInterruptedException)
{
//The thread has been asked to Join. We have nothing to do but return.
return;
}
finally
{
AddToReportQueue(CWLoggerEntryType.Info, Thread.CurrentThread.Name + " has stopped.");
}
}
