public void Push(LibrarySearchResult result)
{
var cacheKeyword = LibrarySearchResult.GenCacheKeyword(result.Keyword, result.CurrentPage);
if(try2Hit(cacheKeyword) == null)
{
mQueue.Enqueue(result);
}
}
private LibrarySearchResponse(HttpRequestBase request, LibrarySearchResult result)
: base(result.User)
{
var keyword = result.Keyword;
var moreUrl = result.MoreUrl;
var books = result.Books;
var converter = new UrlToAbsConverter(request);
this.Articles = new List<Article>()
{
new Article
{
Title = new StringXmlCDataSection(String.Format("搜索 {0} 的结果: {1}/{2}页", keyword, result.CurrentPage, result.PageCount)),
Description = new StringXmlCDataSection(keyword),
PicUrl = new StringXmlCDataSection(converter.Convert("/Content/images/lib.jpg")),
Url = new StringXmlCDataSection(converter.Convert("/Home/About")),
}
};
if (books != null && books.Count > 0)
{
var bookArticles = from book in books
select new Article
{
Title = new StringXmlCDataSection(String.Format("[{0} 馆藏：{1}/{2}] {3} ({4})",
book.Index, book.Available, book.Total, book.Title, book.Author)),
Description = new StringXmlCDataSection(keyword),
PicUrl = book.Available > 0 ?
new StringXmlCDataSection(converter.Convert("/Content/Images/green_circle.png")) :
new StringXmlCDataSection(converter.Convert("/Content/Images/red_circle.png")),
Url = new StringXmlCDataSection(getDetailUrl(converter, book.Url))
};
this.Articles.AddRange(bookArticles);
this.Articles.Add(new Article
{
Title = new StringXmlCDataSection(CMD),
PicUrl = new StringXmlCDataSection(converter.Convert("/Content/Images/frog.jpg")),
Url = new StringXmlCDataSection(converter.Convert("/Home/About"))
});
}
else
{
this.Articles.Add(new Article
{
Title = new StringXmlCDataSection("没有匹配项"),
PicUrl = new StringXmlCDataSection(converter.Convert("/Content/Images/frog.jpg")),
Url = new StringXmlCDataSection(converter.Convert("/Home/About"))
});
}
}
public bool Search(LibrarySearchOption option, out LibrarySearchResult result)
{
/*
#if DEBUG
* result = getLocalResult();
* result.ResultCount = expectedCount;
* if (pageIndex < expectedCount / option.PageSize)
* {
* pageIndex++;
* result.Books = result.Books.GetRange(0, option.PageSize);
* }
* else
* {
* result.Books = result.Books.GetRange(0, expectedCount - pageIndex * option.PageSize);
* }
* return true;
#endif
*/
List <Book> books = null;
int pageCount = 0;
int resultCount = 0;
var url = getSearchUrl(option);
try
{
var request = WebRequest.Create(url) as HttpWebRequest;
Stream stream = (request.GetResponse() as HttpWebResponse).GetResponseStream();
Parse(stream, out books, out pageCount, out resultCount);
result = new LibrarySearchResult
{
Books = books,
PageCount = pageCount,
ResultCount = resultCount,
Error = null
};
return(true);
}
catch (WebException e)
{
result = new LibrarySearchResult
{
Error = e
};
return(false);
}
}
public static LibrarySearchResponse Create(HttpRequestBase request, LibrarySearchResult result)
{
return new LibrarySearchResponse(request, result);
}
public bool Search(LibrarySearchOption option, out LibrarySearchResult result)
{
/*
#if DEBUG
result = getLocalResult();
result.ResultCount = expectedCount;
if (pageIndex < expectedCount / option.PageSize)
{
pageIndex++;
result.Books = result.Books.GetRange(0, option.PageSize);
}
else
{
result.Books = result.Books.GetRange(0, expectedCount - pageIndex * option.PageSize);
}
return true;
#endif
*/
List<Book> books = null;
int pageCount = 0;
int resultCount = 0;
var url = getSearchUrl(option);
try
{
var request = WebRequest.Create(url) as HttpWebRequest;
Stream stream = (request.GetResponse() as HttpWebResponse).GetResponseStream();
Parse(stream, out books, out pageCount, out resultCount);
result = new LibrarySearchResult
{
Books = books,
PageCount = pageCount,
ResultCount = resultCount,
Error = null
};
return true;
}
catch(WebException e)
{
result = new LibrarySearchResult
{
Error = e
};
return false;
}
}
public LibrarySearchResult SearchBooksFor(HttpSessionStateBase session, LibrarySearchOption option, out object error)
{
error = null;
var user = option.User;
var keyword = option.Keyword;
var page = option.Page;
LibrarySearchResult cached;
if ((cached = mResultCache.Try2Hit(keyword, page)) != null)
{
ApplicationLogger.GetLogger().Info("(" + session.SessionID + ")" + keyword + " " + page + " hited");
option.PageCount = cached.PageCount;
return cached;
}
option = option == null ? DEFAULT : option;
var url = getSearchUrl(keyword, option);
try
{
var request = WebRequest.Create(url) as HttpWebRequest;
Stream stream = (request.GetResponse() as HttpWebResponse).GetResponseStream();
List<Book> books = null;
int pageCount = 0;
Parse(stream, out books, out pageCount);
cached = new LibrarySearchResult
{
Keyword = keyword,
User = user,
Books = books,
MoreUrl = url,
PageCount = pageCount,
CurrentPage = option.Page
};
//记录查询结果的总页数
option.PageCount = pageCount;
mResultCache.Push(cached);
ApplicationLogger.GetLogger().Info("(" + session.SessionID + ")" +
"push cache: " + keyword + " " + page + " current cache count: " + mResultCache.Count);
return cached;
}
catch (WebException e)
{
error = e;
return null;
}
}
