private string LoadTree(TreeleftFilter filter, bool isEx)
{
try
{
var treeid = filter.treeleftid;
if (treeid == 0)
treeid = TreeNodeCache.Instance.Roots[filter.type];
TreeNode root;
if (TreeNodeCache.Instance.Items.TryGetValue(treeid, out root))
{
var key = new VideoNodeKey(filter.platform, filter.type, filter.auth);
var xml = new XElement("tree");
RangTree(root, xml, filter, key, isEx);
return xml.ToString(SaveOptions.DisableFormatting);
}
return NoPlatForm();
}
catch (KeyNotFoundException)
{
return NoPlatForm();
}
catch (Exception ex)
{
return BoxUtils.FormatErrorMsg(ex);
}
}
/// <summary>
/// 广度优先遍历树
/// </summary>
private void RangTree(TreeNode root, XElement xml, TreeleftFilter filter, VideoNodeKey key,bool isEx)
{
var queue = new Queue<TreeNode>(root.Childrens.Count * filter.rank);
var depth = root.Depth + filter.rank;
var isex = isEx;
queue.Enqueue(root);
while (queue.Count > 0)
{
var node = queue.Dequeue();
foreach (var child in node.Childrens)
{
var childnode = TreeNodeCache.Instance.Items[child];
if (childnode.Depth < depth)
queue.Enqueue(childnode);
ResponseXml(childnode, xml, filter, key, isex);
}
}
}
/// <summary>
/// XML输出
/// </summary>
private void ResponseXml(TreeNode node, XElement xml, TreeleftFilter filter, VideoNodeKey key, bool isEx)
{
int count, allcount;
if (!isEx)
{
var filters = VideoNodesUtil.CommonCustomFilter(filter);
if (filters.Count <= 0)
{
count = GetChannelCount(node, key);
allcount = GetAllChannelCount(node, key) + count;
}
else
{
count = GetChannelExCount(node, key, filters, filter);
allcount = GetAllChannelExCount(node, key, filters, filter) + count;
}
}
else
{
var filters = VideoNodesUtil.FormateTagFilter(filter);
count = GetChannelExCount(node, key, filters, filter);
allcount = GetAllChannelExCount(node, key, filters, filter) + count;
}
xml.Add(new XElement("treeleft",
new XElement("tlid", node.Node.NodeID),
new XElement("father_tlid", node.Node.ParentNodeID),
new XElement("name", node.Language[filter.lang].Title),
new XElement("remark", node.Language[filter.lang].SubTitle),
new XElement("subtreeleft_count", node.Childrens.Count),
new XElement("subtreeleft_totalcount", node.ALLChildrens),
new XElement("subv_count", count),
new XElement("subv_totalcount", allcount)
));
}
public string TreeleftsEx(TreeleftFilter filter)
{
return LoadTree(filter, true);
}
public string Treelefts(TreeleftFilter filter)
{
return LoadTree(filter, false);
}
private int GetAllChannelExCount(TreeNode node, VideoNodeKey key, List<Func<VideoBase, ExFilterBase, bool>> filters, TreeleftFilter filter)
{
int count = 0;
if (node.AllChannels.ContainsKey(key))
{
var cs = node.AllChannels[key];
foreach (var c in cs)
{
var result = true;
foreach (var f in filters)
{
result = result && f(ListCache.Instance.Dictionary[c], filter);
}
if (result)
count++;
}
}
return count;
}