public string GetText(BookModel book, int tokenOffset, int wordsCount, out int lastTokenId)
{
lastTokenId = -1;
var result = new List <string>();
using (var tokenIterator = new BookTokenIterator(book.GetTokensPath(), TokensTool.GetTokens(book.BookID)))
{
int words = 0;
tokenIterator.MoveTo(tokenOffset);
while (tokenIterator.MoveNext() && words < wordsCount)
{
if (tokenIterator.Current is NewPageToken && result.Count > 0)
{
break;
}
var textToken = tokenIterator.Current as TextToken;
if (textToken == null)
{
continue;
}
lastTokenId = textToken.ID;
result.Add(textToken.Text);
words++;
}
}
return(string.Join(" ", result));
}
public void Init()
{
if (_bookTokenIterator != null && _book != null)
{
int tokenId = _bookTokenIterator.Current.ID;
_bookTokenIterator.Dispose();
_bookTokenIterator = new BookTokenIterator(_book.GetTokensPath(), TokensTool.GetTokens(_book.BookID));
_bookTokenIterator.MoveTo(tokenId);
_bookTokenIterator.MoveNext();
}
}
public Task <List <BookSearchResult> > Search(BookModel book, string query, int count)
{
if (string.IsNullOrEmpty(query) || book == null)
{
return(Task <List <BookSearchResult> > .Factory.StartNew(() => new List <BookSearchResult>()));
}
if (_bookTokenIterator != null)
{
_bookTokenIterator.Dispose();
}
_book = book;
_bookTokenIterator = new BookTokenIterator(_book.GetTokensPath(), TokensTool.GetTokens(_book.BookID));
_query = PrepareQuery(query);
return(Task <List <BookSearchResult> >
.Factory.StartNew(() => Load(_bookTokenIterator, _query, count)));
}