/// <summary>
/// Updates the 'folders' dictionary to match the folders that exist on disk. ONLY UPDATES THE LOCAL FOLDER
/// </summary>
/// <param name="relativePath"></param>
/// <param name="physicalPath"></param>
protected void populateSubfolders(string relativePath, string physicalPath)
{
relativePath = checkRelativePath(relativePath);
string[] dirs = null;
try {
dirs = System.IO.Directory.GetDirectories(physicalPath);
} catch (DirectoryNotFoundException) {
dirs = new string[] {}; //Pretend it's empty. We don't care, the next recursive will get rid of it.
}
lock (_sync) {
CachedFolder f = getOrCreateFolder(relativePath, true);
Dictionary <string, CachedFolder> newFolders = new Dictionary <string, CachedFolder>(dirs.Length, KeyComparer);
foreach (string s in dirs)
{
string local = s.Substring(s.LastIndexOf(System.IO.Path.DirectorySeparatorChar) + 1);
if (local.StartsWith("."))
{
continue; //Skip folders that start with a period.
}
if (f.folders.ContainsKey(local))
{
newFolders[local] = f.folders[local]; //What if the value is null? does containskey work?
}
else
{
newFolders[local] = new CachedFolder();
}
}
f.folders = newFolders; //Question - why didn't the folders ge tlisted?
}
}
/// <summary>
/// returns a dictionary of files.
/// </summary>
/// <param name="relativePath"></param>
/// <returns></returns>
public ICollection <KeyValuePair <string, CachedFileInfo> > getSortedSubfiles(string relativePath)
{
lock (_sync) {
CachedFolder f = getFolder(relativePath);
if (f == null || f.files.Count < 1)
{
return(null);
}
//Copy pairs to an array.
KeyValuePair <string, CachedFileInfo>[] items = new KeyValuePair <string, CachedFileInfo> [f.files.Count];
int i = 0;
foreach (KeyValuePair <string, CachedFileInfo> pair in f.files)
{
items[i] = pair;
i++;
}
//Sort the pairs on accessed date
Array.Sort <KeyValuePair <string, CachedFileInfo> >(items, delegate(KeyValuePair <string, CachedFileInfo> a, KeyValuePair <string, CachedFileInfo> b) {
return(DateTime.Compare(a.Value.AccessedUtc, b.Value.AccessedUtc));
});
return(items);
}
}
public int getFileCount(string relativePath)
{
lock (_sync) {
CachedFolder f = getFolder(relativePath);
return(f.files.Count);
}
}
/// <summary>
/// returns a list
/// </summary>
/// <param name="relativePath"></param>
/// <returns></returns>
public IList <string> getSubfolders(string relativePath)
{
lock (_sync) {
CachedFolder f = getFolder(relativePath);
return(new List <string>(f.folders.Keys));
}
}
/// <summary>
/// returns a dictionary of files.
/// </summary>
/// <param name="relativePath"></param>
/// <returns></returns>
public Dictionary <string, CachedFileInfo> getSubfilesCopy(string relativePath)
{
lock (_sync) {
CachedFolder f = getFolder(relativePath);
return(new Dictionary <string, CachedFileInfo>(f.files, f.files.Comparer));
}
}
/// <summary>
/// Tries to set the AccessedUtc of the specified file to the current date (just in memory, not on the filesystem).
/// </summary>
/// <param name="relativePath"></param>
/// <returns></returns>
public bool bumpDateIfExists(string relativePath)
{
relativePath = checkRelativePath(relativePath);
lock (_sync) {
int slash = relativePath.IndexOf('/');
if (slash < 0)
{
//Update the accessed date.
CachedFileInfo old;
if (files.TryGetValue(relativePath, out old))
{
files[relativePath] = new CachedFileInfo(old, DateTime.UtcNow);
}
return(true); //We updated it!
}
else
{
//Try to access subfolder
string folder = relativePath.Substring(0, slash);
CachedFolder f = null;
if (!folders.TryGetValue(folder, out f))
{
return(false); //If the folder doesn't exist, quit
}
if (f == null)
{
return(false); //If the folder is null, quit!
}
//Recurse if possible
return(f.bumpDateIfExists(relativePath.Substring(slash + 1)));
}
}
}
/// <summary>
/// Returns the value of IsValid on the specified folder if present, or 'false' if not present.
/// </summary>
/// <param name="relativePath"></param>
/// <returns></returns>
public bool GetIsValid(string relativePath)
{
lock (_sync) {
CachedFolder f = getFolder(relativePath);
if (f != null)
{
return(f.IsValid);
}
return(false);
}
}
protected CachedFolder getOrCreateFolder(string relativePath, bool createIfMissing)
{
relativePath = checkRelativePath(relativePath);
if (string.IsNullOrEmpty(relativePath))
{
return(this);
}
int slash = relativePath.IndexOf('/');
string folder = relativePath;
if (slash > -1)
{
folder = relativePath.Substring(0, slash);
relativePath = relativePath.Substring(slash + 1);
}
else
{
relativePath = "";
}
CachedFolder f;
if (!folders.TryGetValue(folder, out f))
{
if (!createIfMissing)
{
return(null);
}
else
{
f = folders[folder] = new CachedFolder();
}
}
//Recurse if possible
if (f != null)
{
return(f.getFolder(relativePath));
}
//Not found
return(null);
}
/// <summary>
/// Sets the CachedFileInfo object for the specified path, creating any needed folders along the way.
/// If 'null', the item will be removed, and no missing folder will be created.
/// </summary>
/// <param name="relativePath"></param>
/// <param name="info"></param>
public virtual void setCachedFileInfo(string relativePath, CachedFileInfo info)
{
relativePath = checkRelativePath(relativePath);
lock (_sync) {
int slash = relativePath.IndexOf('/');
if (slash < 0)
{
//Set or remove the file
if (info == null)
{
files.Remove(relativePath);
}
else
{
files[relativePath] = info;
}
}
else
{
//Try to access subfolder
string folder = relativePath.Substring(0, slash);
CachedFolder f;
if (!folders.TryGetValue(folder, out f))
{
f = null;
}
if (info == null && f == null)
{
return; //If the folder doesn't exist, the file definitely doesn't. Already accomplished.
}
//Create it if it doesn't exist
if (f == null)
{
f = folders[folder] = new CachedFolder();
}
//Recurse if possible
f.setCachedFileInfo(relativePath.Substring(slash + 1), info);
}
}
}
/// <summary>
/// Updates the 'files' dictionary to match the files that exist on disk. Uses the accessedUtc values from the previous dictionary if they are newer.
/// </summary>
/// <param name="relativePath"></param>
/// <param name="physicalPath"></param>
protected void populateFiles(string relativePath, string physicalPath)
{
relativePath = checkRelativePath(relativePath);
string[] physicalFiles = null;
try {
physicalFiles = System.IO.Directory.GetFiles(physicalPath);
} catch (DirectoryNotFoundException) {
physicalFiles = new string[] { }; //Pretend it's empty. We don't care, the next recursive will get rid of it.
}
Dictionary <string, CachedFileInfo> newFiles = new Dictionary <string, CachedFileInfo>(physicalFiles.Length, KeyComparer);
CachedFolder f = getOrCreateFolder(relativePath, true);
foreach (string s in physicalFiles)
{
string local = s.Substring(s.LastIndexOf(System.IO.Path.DirectorySeparatorChar) + 1);
//Todo, add a callback that handles exclusion of files
if (local.EndsWith(".config", StringComparison.OrdinalIgnoreCase))
{
continue;
}
if (local.StartsWith("."))
{
continue; //Skip files that start with a period
}
//What did we have on file?
CachedFileInfo old = null;
lock (_sync) {
if (!f.files.TryGetValue(relativePath, out old))
{
old = null;
}
}
newFiles[local] = new CachedFileInfo(new FileInfo(s), old);
}
lock (_sync) {
f.files = newFiles;
}
}
/// <summary>
/// Updates the 'folders' dictionary to match the folders that exist on disk. ONLY UPDATES THE LOCAL FOLDER
/// </summary>
/// <param name="relativePath"></param>
/// <param name="physicalPath"></param>
protected void populateSubfolders(string relativePath, string physicalPath)
{
relativePath = checkRelativePath(relativePath);
string[] dirs = null;
try {
dirs = System.IO.Directory.GetDirectories(physicalPath);
} catch (DirectoryNotFoundException) {
dirs = new string[]{}; //Pretend it's empty. We don't care, the next recursive will get rid of it.
}
lock (_sync) {
CachedFolder f = getOrCreateFolder(relativePath, true);
Dictionary<string, CachedFolder> newFolders = new Dictionary<string, CachedFolder>(dirs.Length, KeyComparer);
foreach (string s in dirs) {
string local = s.Substring(s.LastIndexOf(System.IO.Path.DirectorySeparatorChar) + 1);
if (local.StartsWith(".")) continue; //Skip folders that start with a period.
if (f.folders.ContainsKey(local))
newFolders[local] = f.folders[local]; //What if the value is null? does containskey work?
else
newFolders[local] = new CachedFolder();
}
f.folders = newFolders; //Question - why didn't the folders ge tlisted?
}
}
protected CachedFolder getOrCreateFolder(string relativePath, bool createIfMissing)
{
relativePath = checkRelativePath(relativePath);
if (string.IsNullOrEmpty(relativePath)) return this;
int slash = relativePath.IndexOf('/');
string folder = relativePath;
if (slash > -1) {
folder = relativePath.Substring(0, slash);
relativePath = relativePath.Substring(slash + 1);
} else relativePath = "";
CachedFolder f;
if (!folders.TryGetValue(folder, out f)) {
if (!createIfMissing) return null;
else f = folders[folder] = new CachedFolder();
}
//Recurse if possible
if (f != null) return f.getFolder(relativePath);
//Not found
return null;
}
/// <summary>
/// Sets the CachedFileInfo object for the specified path, creating any needed folders along the way.
/// If 'null', the item will be removed, and no missing folder will be created.
/// </summary>
/// <param name="relativePath"></param>
/// <param name="info"></param>
public virtual void setCachedFileInfo(string relativePath, CachedFileInfo info)
{
relativePath = checkRelativePath(relativePath);
lock (_sync) {
int slash = relativePath.IndexOf('/');
if (slash < 0) {
//Set or remove the file
if (info == null)
files.Remove(relativePath);
else
files[relativePath] = info;
} else {
//Try to access subfolder
string folder = relativePath.Substring(0, slash);
CachedFolder f;
if (!folders.TryGetValue(folder, out f)) f = null;
if (info == null && f == null) return; //If the folder doesn't exist, the file definitely doesn't. Already accomplished.
//Create it if it doesn't exist
if (f == null) f = folders[folder] = new CachedFolder();
//Recurse if possible
f.setCachedFileInfo(relativePath.Substring(slash + 1), info);
}
}
}
