public PostV5 GetPostFromCache(int postID)
{
PostV5 threadContent = ThreadContent;
if (threadContent != null && threadContent.PostID == postID)
{
return(threadContent);
}
PostCollectionV5[] cachedPosts = cachedPagePosts;
if (cachedPosts == null)
{
return(null);
}
PostV5 post;
for (int i = 0; i < CacheFirstPageCount + CacheLastPageCount; i++)
{
PostCollectionV5 tempPosts = cachedPosts[i];
if (tempPosts != null && tempPosts.TryGetValue(postID, out post))
{
return(post);
}
}
return(null);
}
public bool ContainPostCache(int postID)
{
PostV5 threadContent = ThreadContent;
if (threadContent != null && threadContent.PostID == postID)
{
return(true);
}
PostCollectionV5[] cachedPosts = cachedPagePosts;
if (cachedPosts == null)
{
return(false);
}
for (int i = 0; i < CacheFirstPageCount + CacheLastPageCount; i++)
{
PostCollectionV5 tempPosts = cachedPosts[i];
if (tempPosts != null && tempPosts.ContainsKey(postID))
{
return(true);
}
}
return(false);
}
/// <summary>
/// 更新缓存 如果缓存里不存在该帖子 则不进行任何操作
/// </summary>
/// <param name="post"></param>
public virtual void UpdatePostCache(PostV5 post)
{
lock (m_CachedPagePostsLocker)
{
PostV5 threadContent = ThreadContent;
if (threadContent != null && post.PostID == threadContent.PostID)
{
ThreadContent = post;
}
else
{
if (cachedPagePosts != null)
{
for (int i = 0; i < CacheFirstPageCount + CacheLastPageCount; i++)
{
PostCollectionV5 posts = cachedPagePosts[i];
if (posts != null && posts.ContainsKey(post.PostID))
{
posts.Set(post);
break;
}
}
}
}
}
}
/// <summary>
/// 临时 使用的
/// </summary>
/// <param name="pageNumber"></param>
/// <returns></returns>
public bool ContainPageCache(int pageNumber)
{
if (cachedPagePosts == null)
{
return(false);
}
if (pageNumber <= CacheFirstPageCount || pageNumber > TotalPages - CacheLastPageCount)
{
PostCollectionV5 posts = cachedPagePosts[GetCachedPageIndex(pageNumber)];
if (posts == null || posts.Count == 0)
{
return(false);
}
else
{
return(true);
}
}
return(false);
}
public PostCollectionV5(PostCollectionV5 posts)
: base(posts)
{
}
public void AddPostToCache(PostV5 post)
{
if (cachedPagePosts == null)
{
return;
}
int pageSize = AllSettings.Current.BbsSettings.PostsPageSize;
lock (m_CachedPagePostsLocker)
{
int index = GetCachedPageIndex(TotalPages);
//int total = TotalRepliesForPage + 1;
//if (total % AllSettings.Current.BbsSettings.PostsPageSize > 0)
//{
// //如果最后页 没缓存 那就不加入
// if (cachedPagePosts[index] == null)
// {
// return;
// }
//}
PostCollectionV5 posts = cachedPagePosts[index];
if (posts == null)
{
posts = new PostCollectionV5();
}
if (posts.Count > 0)
{
int tempi = -1;
for (int i = posts.Count - 1; i > -1; i--)
{
if (post.PostID < posts[i].PostID)
{
tempi = i;
}
else
{
break;
}
}
if (tempi > -1)
{
posts.Insert(tempi, post);
post = posts[posts.Count - 1];
}
}
if (posts.Count >= pageSize) //需要新的页面 缓存
{
PostCollectionV5 tempPosts = new PostCollectionV5();
tempPosts.Add(post);
if (index == CacheFirstPageCount + CacheLastPageCount - 1)//已经是最后一页
{
//需要新的页面 则把LastCachePage的最前面一页 删除 后面的页面往前挪一个位置 新页加到后面
PostCollectionV5[] tempPages = new PostCollectionV5[CacheFirstPageCount + CacheLastPageCount];
for (int i = 0; i < CacheFirstPageCount + CacheLastPageCount; i++)
{
if (i < CacheFirstPageCount)
{
tempPages[i] = cachedPagePosts[i];
}
else
{
if (i + 1 < CacheFirstPageCount + CacheLastPageCount)
{
tempPages[i] = cachedPagePosts[i + 1];
}
}
}
tempPages[CacheFirstPageCount + CacheLastPageCount - 1] = tempPosts;
cachedPagePosts = tempPages;
}
else
{
cachedPagePosts[index + 1] = tempPosts;
}
}
else
{
posts.Add(post);
cachedPagePosts[index] = posts;
}
}
}
