private static Uri[] GetLinks(string uri)
{
List <Uri> links = new List <Uri>();
if (CNNPage.isTopicPage(uri))
{
Regex regex = new Regex("<a href=\"http:[^\"#?]+[\"#?]");
string page = Downloader.FetchPage(uri);
foreach (Match m in regex.Matches(page))
{
Uri tmp = new Uri(m.Value.Substring(9, m.Value.Length - 10));
if (!links.Contains(tmp))
{
links.Add(tmp);
}
}
}
else
{
CNNPage curr;
try
{
curr = new CNNPage(uri);
links.AddRange(curr.allLinks);
}
catch (Exception) { }
}
var nl = new List <Uri>();
foreach (Uri u in links)
{
if (CNNPage.IsNewsPage(u.OriginalString) ||
CNNPage.isTopicPage(u.OriginalString))
{
nl.Add(u);
}
}
return(nl.ToArray());
}
public void Do(CNNPage page)
{
try
{
using (SqlCommand command
= new SqlCommand(sql, conn))
{
command.Parameters.AddWithValue("@url", page.uri);
command.Parameters.AddWithValue("@words", ToOneString(page.words, 4000));
command.Parameters.AddWithValue("@links", ToOneString(page.allLinks, 1000));
command.Parameters.AddWithValue("@raw", page.pureText);
command.Parameters.AddWithValue("@date", DateTime.Now.ToString());
command.ExecuteNonQuery();
Console.WriteLine("Saved");
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
public void Run()
{
while (true)
{
try
{
//Console.WriteLine("PAGES VISITED: " + history.Count);
//Console.WriteLine("NEWS:" + history.NewsCount);
//Console.WriteLine("QUEUE SIZE: " + queue.Count);
if (queue.Count == 0)
{
Console.WriteLine("END");
break;
}
Uri curr = queue.Dequeue();
Console.WriteLine("PROCESSING: " + curr);
if (!history.WasVisited(curr.OriginalString))
{
try
{
//----
if (!CNNPage.IsNewsPage(curr.OriginalString) &&
!CNNPage.isTopicPage(curr.OriginalString))
{
history.SetVisited(curr);
Console.WriteLine("--");
}
//----
if (CNNPage.IsNewsPage(curr.OriginalString))
{
CNNPage page = new CNNPage(curr.OriginalString);
newsAction.Do(page);
//----
//Uri[] links = page.allLinks.ToArray();
//AddLinksToPagesToVisit(links);
}
//----
if (CNNPage.isTopicPage(curr.OriginalString))
{
var action = new TopicAction(conn);
action.Do(curr.OriginalString);
//----
Uri[] links = GetLinks(curr.OriginalString);
AddLinksToPagesToVisit(links);
}
}
finally
{
history.SetVisited(curr);
Console.WriteLine("--");
}
}
else
{
Console.WriteLine("SKIP: Page have been already visited");
Console.WriteLine("--");
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
}
public void RunTopicRec()
{
while (true)
{
if (queue.Count == 0)
{
Console.WriteLine("KURWA KONIEC");
break;
}
Uri curr = queue.Dequeue();
Console.WriteLine("PROCESSING: " + curr);
if (!history.WasVisited(curr.OriginalString))
{
//SqlTransaction trans = conn.BeginTransaction();
try
{
if (CNNPage.isTopicPage(curr.OriginalString))
{
var action = new TopicAction(conn);
action.Do(curr.OriginalString);
Console.WriteLine("Przetwarzam newsy z topicu");
Uri[] links = GetLinks(curr.OriginalString);
for (int i = 0; i < links.Length; i++)
{
try
{
if (CNNPage.IsNewsPage(links[i].OriginalString))
{
Console.WriteLine("News: " + i + "/" + links.Length);
newsAction.Do(new CNNPage(links[i].OriginalString));
Console.WriteLine("OK");
}
else
{
Console.WriteLine("Not news :(");
}
}
catch (Exception ex)
{
Console.WriteLine("FAIL");
}
}
//trans.Commit();
Console.WriteLine("- Przetworzono topic -");
}
history.SetVisited(curr);
//trans.Commit();
}
catch (Exception ex)
{
Console.WriteLine("Wyst¹pi³ b³¹d: " + ex);
// trans.Rollback();
}
}
}
}
