public override Uri GetFileSystemObjectUrl(string path, ICloudDirectoryEntry parent)
{
var ph = new PathHelper(path);
var elements = ph.GetPathElements();
var current = parent;
for (int i = 0; i < elements.Length; i++)
{
var child = current.GetChild(elements[i], false);
if (i == elements.Length - 1)
{
if (child == null || child is ICloudDirectoryEntry)
{
throw new SharpBoxException(SharpBoxErrorCodes.ErrorFileNotFound);
}
return new Uri(child.GetPropertyValue(GoogleDocsConstants.DownloadUrlProperty));
}
if (child == null || !(child is ICloudDirectoryEntry))
{
throw new SharpBoxException(SharpBoxErrorCodes.ErrorFileNotFound);
}
current = (ICloudDirectoryEntry) child;
}
return null;
}
/// <summary>
/// This method returns a filesystem object, this can be files or folders
/// </summary>
/// <param name="path"></param>
/// <param name="parent"></param>
/// <returns></returns>
public ICloudFileSystemEntry GetFileSystemObject(string path, ICloudDirectoryEntry parent)
{
/*
* This section generates for every higher object the object tree
*/
PathHelper ph = new PathHelper(path);
String[] elements = ph.GetPathElements();
// create the virtual root
ICloudDirectoryEntry current = parent ?? GetRoot();
// build the root
// check if we request only the root
if (path.Equals("/"))
return current;
if (_Service.SupportsDirectRetrieve)
{
//Request directly
return _Service.RequestResource(_Session, path.TrimStart('/'), current);
}
// create the path tree
for (int i = 0; i <= elements.Length - 1; i++)
{
String elem = elements[i];
if (i == elements.Length - 1)
{
return current.GetChild(elem, false);
}
try
{
current = current.GetChild(elem, true) as ICloudDirectoryEntry;
}
catch (SharpBoxException e)
{
// if not found, create a virtual one
if (e.ErrorCode == SharpBoxErrorCodes.ErrorFileNotFound)
current = GenericStorageProviderFactory.CreateDirectoryEntry(_Session, elem, current);
else
throw;
}
}
// looks like an error
return null;
}
private ICloudDirectoryEntry CreateFolderEx(string path, ICloudDirectoryEntry entry)
{
var ph = new PathHelper(path);
var pes = ph.GetPathElements();
foreach (var el in pes)
{
var cur = GetFolder(el, entry, false);
if (cur == null)
{
var newFolder = CreateFolder(el, entry);
if (newFolder == null)
throw new SharpBoxException(SharpBoxErrorCodes.ErrorCreateOperationFailed);
cur = newFolder;
}
entry = cur;
}
return entry;
}
/// <summary>
/// This function allows to create full folder pathes in the cloud storage
/// </summary>
/// <param name="path"></param>
/// <param name="entry"></param>
/// <returns></returns>
public ICloudDirectoryEntry CreateFolderEx(String path, ICloudDirectoryEntry entry)
{
// get the path elemtens
var ph = new PathHelper(path);
String[] pes = ph.GetPathElements();
// check which elements are existing
foreach (String el in pes)
{
// check if subfolder exists, if it doesn't, create it
ICloudDirectoryEntry cur = GetFolder(el, entry, false);
// create if needed
if (cur == null)
{
ICloudDirectoryEntry newFolder = CreateFolder(el, entry);
if (newFolder == null)
throw new SharpBoxException(SharpBoxErrorCodes.ErrorCreateOperationFailed);
else
cur = newFolder;
}
// go ahead
entry = cur;
}
// return
return entry;
}
