private static bool TransformInternal(VirtualFolder root,
VirtualFolder current)
{
foreach (var f in current.ChildFolders.ToList()) {
var vf = f as VirtualFolder;
if (TransformInternal(root, vf)) {
current.ReleaseFolder(vf);
}
}
if (current == root || current.ChildItems.Count() > 3) {
return false;
}
var newParent = (VirtualFolder)current.Parent;
foreach (var c in current.ChildItems.ToList()) {
current.RemoveResource(c);
newParent.AddResource(c);
}
if (current.ChildCount != 0) {
MergeFolders(current, newParent);
foreach (var f in current.ChildFolders.ToList()) {
newParent.AdoptFolder(f);
}
foreach (var f in current.ChildItems.ToList()) {
current.RemoveResource(f);
newParent.AddResource(f);
}
}
return true;
}
private static bool TransformInternal(VirtualFolder root,
VirtualFolder current)
{
foreach (var f in current.ChildFolders.ToList())
{
var vf = f as VirtualFolder;
if (TransformInternal(root, vf))
{
current.ReleaseFolder(vf);
}
}
if (current == root || current.ChildItems.Count() > 3)
{
return(false);
}
var newParent = (VirtualFolder)current.Parent;
foreach (var c in current.ChildItems.ToList())
{
current.RemoveResource(c);
newParent.AddResource(c);
}
if (current.ChildCount != 0)
{
MergeFolders(current, newParent);
foreach (var f in current.ChildFolders.ToList())
{
newParent.AdoptFolder(f);
}
foreach (var f in current.ChildItems.ToList())
{
current.RemoveResource(f);
newParent.AddResource(f);
}
}
return(true);
}
private static void SortFolder(VirtualFolder folder, SimpleKeyedVirtualFolder titles)
{
foreach (var f in folder.ChildFolders.ToList()) {
SortFolder(f as VirtualFolder, titles);
}
foreach (var c in folder.ChildItems.ToList()) {
var pre = GetTitle(c);
pre = pre[0].ToString().ToUpperInvariant();
titles.GetFolder(pre).AddResource(c);
folder.RemoveResource(c);
}
}
private void PartitionChildren(VirtualFolder folder, Prefixer prefixer, int startfrom = 1)
{
for (var wordcount = startfrom;;)
{
var curwc = wordcount;
var groups = from i in folder.ChildItems.ToList()
let prefix = prefixer.GetWordPrefix(GetTitle(i), curwc)
where !string.IsNullOrWhiteSpace(prefix)
group i by prefix.ToLowerInvariant()
into g
let gcount = g.LongCount()
where gcount > 3
orderby g.LongCount() descending
select g;
var longest = groups.FirstOrDefault();
if (longest == null)
{
if (wordcount++ > 5)
{
return;
}
continue;
}
var newfolder = new VirtualFolder(folder, longest.Key);
foreach (var item in longest)
{
folder.RemoveResource(item);
newfolder.AddResource(item);
}
if (newfolder.ChildCount > 100)
{
PartitionChildren(newfolder, prefixer, wordcount + 1);
}
if (newfolder.ChildFolders.LongCount() == 1)
{
foreach (var f in newfolder.ChildFolders.ToList())
{
folder.AdoptFolder(f);
}
}
else
{
folder.AdoptFolder(newfolder);
}
}
}
private static void SortFolder(VirtualFolder folder, SimpleKeyedVirtualFolder titles)
{
foreach (var f in folder.ChildFolders.ToList())
{
SortFolder(f as VirtualFolder, titles);
}
foreach (var c in folder.ChildItems.ToList())
{
var pre = GetTitle(c);
pre = pre[0].ToString().ToUpperInvariant();
titles.GetFolder(pre).AddResource(c);
folder.RemoveResource(c);
}
}
private static void SortFolder(VirtualFolder folder, TitlesFolder titles)
{
folder.AllItems.GroupBy(
r => (r is IMetaInfo) ? ((r as IMetaInfo).InfoDate.ToString("yyyy-MMM")) : "Unknown",
r => r,
(k, g) => new { Key = k, Lst = g.ToList() }
)
.ToList()
.ForEach(i => {
var tf = titles.GetFolder(i.Key);
i.Lst.ForEach(r => {
tf.AddResource(r);
folder.RemoveResource(r);
});
});
}
private static void SortFolder(VirtualFolder folder, TitlesFolder titles)
{
foreach (var f in folder.ChildFolders.ToList())
{
SortFolder(f as VirtualFolder, titles);
}
foreach (var c in folder.ChildItems.ToList())
{
var pre = c.Title.StemCompareBase();
if (string.IsNullOrEmpty(pre))
{
pre = "Unnamed";
}
pre = pre.First().ToString().ToUpperInvariant();
titles.GetFolder(pre).AddResource(c);
folder.RemoveResource(c);
}
}
private void PartitionChildren(VirtualFolder folder, Prefixer prefixer, int startfrom = 1)
{
for (var wordcount = startfrom;;) {
var curwc = wordcount;
var groups = from i in folder.ChildItems.ToList()
let prefix = prefixer.GetWordPrefix(GetTitle(i), curwc)
where !string.IsNullOrWhiteSpace(prefix)
group i by prefix.ToLowerInvariant()
into g
let gcount = g.LongCount()
where gcount > 3
orderby g.LongCount() descending
select g;
var longest = groups.FirstOrDefault();
if (longest == null) {
if (wordcount++ > 5) {
return;
}
continue;
}
var newfolder = new VirtualFolder(folder, longest.Key);
foreach (var item in longest) {
folder.RemoveResource(item);
newfolder.AddResource(item);
}
if (newfolder.ChildCount > 100) {
PartitionChildren(newfolder, prefixer, wordcount + 1);
}
if (newfolder.ChildFolders.LongCount() == 1) {
foreach (var f in newfolder.ChildFolders.ToList()) {
folder.AdoptFolder(f);
}
}
else {
folder.AdoptFolder(newfolder);
}
}
}
