/// <summary>Adds everything possible to target from another source.
/// This may include new comments, full comments, larger text etc.</summary>
/// <param name="target">Object to add data to.</param>
/// <param name="otherSource">Object to use data from.</param>
public bool AddData(EntryPage target, EntryPage otherSource)
{
bool updated = false;
// Check arguments.
if(target == null || otherSource == null)
throw new ArgumentNullException();
// Entry.
log.DebugFormat("Updating content for entry page '{0}' from other source.", target);
updated |= _entryHelper.UpdateWith(target.Entry, otherSource.Entry);
// Comments.
log.DebugFormat("Updating comments for entry page '{0}' from other source.", target);
updated |= _repliesHelper.MergeFrom(target, otherSource);
// CommentPages.
if(target.CommentPages != null && !CommentPages.IsEmpty(target.CommentPages))
{
log.DebugFormat("Cleaning comment pages information for entry page '{0}'.", target);
target.CommentPages = CommentPages.Empty;
updated = true;
}
return updated;
}
public bool AbsorbAllData(EntryPage freshSource, ILJClientData clientData, ref EntryPage dumpData)
{
bool appliedAnything = false;
if(dumpData == null)
{
dumpData = new EntryPage();
appliedAnything = true;
}
appliedAnything |= _entryPageHelper.AddData(dumpData, freshSource);
// TryGet all comments.
EntryPage[] otherPages = _otherPagesLoader.LoadOtherCommentPages(freshSource.CommentPages, clientData);
foreach(EntryPage pageX in otherPages)
appliedAnything |= _entryPageHelper.AddData(dumpData, pageX);
while(true)
{
IEnumerable<Comment> allFoldedComments = _repliesHelper.EnumerateRequiringFullUp(dumpData.Replies);
IEnumerator<Comment> enumerator = allFoldedComments.GetEnumerator();
int foldedCommentsLeft = 0;
Comment c = null;
while(enumerator.MoveNext())
{
foldedCommentsLeft++;
if(c == null)
c = enumerator.Current;
}
// How many comments left?
log.Info(String.Format("Folded comments left: {0}.", foldedCommentsLeft));
if(foldedCommentsLeft == 0)
break;
LiveJournalTarget commentTarget = LiveJournalTarget.FromString(c.Url);
EntryPage commentPage = GetFrom(commentTarget, clientData);
Comment fullVersion = commentPage.Replies.Comments[0];
if(fullVersion.IsFull == false)
{
// This should be a suspended user.
log.Info(String.Format("Comment {0} seems to be from a suspended user.", c));
c.IsSuspendedUser = true;
continue;
}
log.Info(String.Format("Merging comment data for comment {0}.", c));
appliedAnything |= _repliesHelper.MergeFrom(c, fullVersion);
}
return appliedAnything;
}
private void AssertAuthorCommentsArePicked(EntryPage ep, List<Comment[]> ret)
{
string authorUsername = ep.Entry.Poster.Username;
Comment[] authorCommentsCount = _repliesHelper.EnumerateAll(ep.Replies).Where(z => z.Poster.Username == authorUsername).ToArray();
Comment[] authorCommentsPicked = ret.SelectMany(z => z).Where(z => z.Poster.Username == authorUsername).ToArray();
Comment[] authorCommentsLeftBehind = authorCommentsCount.Except(authorCommentsPicked).ToArray();
if(authorCommentsLeftBehind.Length != 0)
{
// Watchdog barks.
string message = String.Format("Author comments with ids {0} were left behind when picking.", String.Join(", ", authorCommentsLeftBehind.Select(z => z.Id)));
log.Error(message);
throw new ApplicationException(message);
}
}
public List<Comment[]> Pick(EntryPage ep)
{
string authorUsername = ep.Entry.Poster.Username;
// Get threads from each root comment.
List<Comment[]> ret = ep.Replies.Comments
.AsParallel().AsOrdered()
.Select(rootComment => ExtractThreads(rootComment, authorUsername))
.SelectMany(a => a)
.ToList();
// Make sure all author comments were picked.
AssertAuthorCommentsArePicked(ep, ret);
return ret;
}
public string Serialize(EntryPage ep)
{
UTF8Encoding enc = new UTF8Encoding(encoderShouldEmitUTF8Identifier: false);
XmlWriterSettings settings = new XmlWriterSettings();
settings.OmitXmlDeclaration = true;
settings.Indent = true;
settings.ConformanceLevel = ConformanceLevel.Auto;
settings.Encoding = enc;
XmlSerializerNamespaces names = new XmlSerializerNamespaces();
names.Add("", "");
MemoryStream ms = new MemoryStream();
XmlWriter writer = XmlWriter.Create(ms, settings);
XmlSerializer sr = new XmlSerializer(typeof(EntryPage));
sr.Serialize(writer, ep, names);
return enc.GetString(ms.ToArray());
}
