public Article GetArticleBy(string title, bool checkPeers)
{
OnMethodCalled(this, new MethodCallEventArgs { Name = "GetArticle",Id=this.Id });
if (title == null)
{
throw new ArgumentNullException();
}
title = title.ToLower();
Article article = Articles.Find(a => a.Title.ToLower().Equals(title));
if (!article.IsDefault())
return article;
foreach (KeyValuePair<int, IPeer> p in OnlinePeers)
{
try
{
article = p.Value.GetArticleBy(title, false);
if (!article.IsDefault())
return article;
}
catch (WebException)
{
OnlinePeers.Remove(p.Key);
}
}
if (!checkPeers)
return default(Article);
IPeerListCtx plc = new PeerListCtx();
IPeerRequestContext ctx = new PeerRequestContext(plc);
ctx.CheckAndAdd(this.Id);//so faz add pois e o inicio da chain de getpeers
IList<KeyValuePair<int, IPeer>> peers = new List<KeyValuePair<int, IPeer>>();
// KeyValuePair para se poder remover caso o proxy tenha sido fechado
foreach (KeyValuePair<int, ISuperPeer> sp in SuperPeers)
{
try
{
if(ctx.CheckAndAdd(sp.Key))
PeerHelpers.ConcatAndReturnDif(ref peers, OnlinePeers, sp.Value.GetPeers(ctx),this);
}
catch (WebException)
{
SuperPeers.Remove(sp.Key);
}
if (peers != null)
{
foreach (KeyValuePair<int, IPeer> p in peers)
{
try
{
article = p.Value.GetArticleBy(title, false);
if (!article.IsDefault())
return article;
}
catch (WebException)
{
OnlinePeers.Remove(p.Key);
}
}
}
}
return default(Article);
}
public Article GetArticleBy(string title, bool checkPeers)
{
Console.WriteLine(Id + " - Getting article - " + title);
if (string.IsNullOrEmpty(title))
{
throw new EmptyTitleException();
}
if (SuperPeer == null || !SuperPeer.IsAlive())
{
throw new NotRegisteredToSuperPeerException();
}
title = title.ToLower();
Article article = Articles.Find(a => a.Title.ToLower().Equals(title));
if (!article.IsDefault())
return article;
foreach (KeyValuePair<int, IPeer> p in OnlinePeers)
{
try
{
article = p.Value.GetArticleBy(title, false);
if (!article.IsDefault())
return article;
}
catch (WebException)
{
OnlinePeers.Remove(p.Key);
}
}
if (!checkPeers)
return default(Article);
IList<KeyValuePair<int, IPeer>> peers = new List<KeyValuePair<int,IPeer>>();
try
{
IPeerListCtx plc = new PeerListCtx();
IPeerRequestContext ctx = new PeerRequestContext(plc);
ctx.CheckAndAdd(SuperPeer.Id);//so faz add pois e o inicio da chain de getpeers
PeerHelpers.ConcatAndReturnDif(ref peers, OnlinePeers, SuperPeer.GetPeers(ctx),this);
}
catch (WebException)
{
throw new NotRegisteredToSuperPeerException();
}
if (peers != null)
{
foreach (KeyValuePair<int, IPeer> p in peers)
{
try
{
article = p.Value.GetArticleBy(title, false);
if (!article.IsDefault())
return article;
}
catch (WebException)
{
OnlinePeers.Remove(p.Key);
}
}
}
return default(Article);
}
