//protected virtual object ItemExistsDynamicParameters(string path);
// SetItem method of the item provider interface is not implemented, using SetContent
// from content provider interface instead, same as the built-in FileSystem provider.
//protected virtual void SetItem(string path, object value);
//protected virtual object SetItemDynamicParameters(string path, object value);
#region ContainerCmdletProvider
//protected virtual bool ConvertPath(string path, string filter, ref string updatedPath, ref string updatedFilter);
//protected virtual void CopyItem(string path, string copyPath, bool recurse);
//protected virtual object CopyItemDynamicParameters(string path, string destination, bool recurse);
protected override void GetChildItems(string path, bool recurse)
{
if (PathIsDrive(path))
{
foreach (var deviceName in JAFS.GetDeviceNames())
{
WriteItemObject(deviceName, path, true);
}
}
else
{
Collection <JFSObject> pathObjects = JAFS.GetPathObjects(JAFSPath(path));
JFSObject job = pathObjects.Count > 0 ? pathObjects[pathObjects.Count - 1] : null;
if (job is JFSDevice)
{
JFSDevice dev = job as JFSDevice;
foreach (var mntName in dev.GetMountPointNames())
{
WriteItemObject(mntName, path, true);
}
}
else if (job is JFSMountPoint)
{
JFSMountPoint mnt = job as JFSMountPoint;
foreach (var folName in mnt.GetFoldersNames())
{
WriteItemObject(folName, path, true);
}
foreach (var filName in mnt.GetFileNames())
{
WriteItemObject(filName, path, false);
}
}
else if (job is JFSFolder)
{
JFSFolder fol = job as JFSFolder;
foreach (var subName in fol.GetFoldersNames())
{
WriteItemObject(subName, path, true);
}
foreach (var filName in fol.GetFileNames())
{
WriteItemObject(filName, path, false);
}
}
else if (job is JFSBasicFile)
{
JFSBasicFile fil = job as JFSBasicFile;
WriteItemObject(fil.Name, path, false);
}
else
{
throw new ArgumentException("Invalid path");
}
}
}
//protected virtual object GetChildItemsDynamicParameters(string path, bool recurse);
//protected virtual void GetChildNames(string path, ReturnContainers returnContainers);
//protected virtual object GetChildNamesDynamicParameters(string path);
protected override bool HasChildItems(string path)
{
// This is part of Container provider and tells if the container contains any children.
// Must be implemented for RemoveItem to work, to decide how to handle possible recursion.
// See also IsItemContainer implemented for Navigation provider.
if (PathIsDrive(path))
{
return(true);
}
Collection <JFSObject> pathObjects = JAFS.GetPathObjects(JAFSPath(path));
JFSObject job = pathObjects.Count > 0 ? pathObjects[pathObjects.Count - 1] : null;
if (job != null)
{
if (job is JFSDevice)
{
JFSDevice dev = job as JFSDevice;
return(dev.NumberOfApiMountPoints > 0); // NB: Includes deleted and special mount points!
}
else if (job is JFSMountPoint)
{
JFSMountPoint mnt = job as JFSMountPoint;
return(mnt.NumberOfFilesAndFolders > 0);
}
else if (job is JFSFolder)
{
JFSFolder fol = job as JFSFolder;
return(fol.NumberOfFilesAndFolders > 0);
}
else if (job is JFSBasicFile)
{
return(false);
}
else
{
throw new ArgumentException("Unexpected item type");
}
}
else
{
return(false); //?
}
}
protected override void RemoveItem(string path, bool recurse)
{
RemoveItemDynamicParameters parameters = DynamicParameters as RemoveItemDynamicParameters;
if (PathIsDrive(path))
{
throw new ArgumentException("Remove not supported for this item");
}
Collection <JFSObject> pathObjects = JAFS.GetPathObjects(JAFSPath(path));
JFSObject job = pathObjects.Count > 0 ? pathObjects[pathObjects.Count - 1] : null;
if (job is JFSDevice)
{
JFSDevice dev = job as JFSDevice;
if (parameters.Permanent)
{
if (ShouldProcess(path, "RemoveItem"))
{
JAFS.DeleteDevicePermanently(dev);
}
}
else
{
throw new ArgumentException("Devices can only be removed permanently");
}
}
else if (job is JFSMountPoint)
{
JFSMountPoint mnt = job as JFSMountPoint;
if (parameters.Permanent)
{
JFSDevice dev = pathObjects.Count > 1 ? pathObjects[pathObjects.Count - 2] as JFSDevice : null; // Parent is the device
if (dev == null)
{
throw new ArgumentException("Failed to find parent item needed for permanent remove");
}
if (ShouldProcess(path, "RemoveItem"))
{
dev.DeleteMountPointPermanently(mnt);
}
}
else
{
if (ShouldProcess(path, "RemoveItem"))
{
mnt.Delete();
}
}
}
else if (job is JFSFolder)
{
JFSFolder fol = job as JFSFolder;
if (parameters.Permanent)
{
JFSObject parent = pathObjects.Count > 1 ? pathObjects[pathObjects.Count - 2] : null;
if (parent is JFSMountPoint)
{
JFSMountPoint mnt = parent as JFSMountPoint;
if (mnt == null)
{
throw new ArgumentException("Failed to find parent item needed for permanent remove");
}
if (ShouldProcess(path, "RemoveItem"))
{
mnt.DeleteFolderPermanently(fol);
}
}
else if (parent is JFSFolder)
{
JFSFolder pf = parent as JFSFolder;
if (pf == null)
{
throw new ArgumentException("Failed to find parent item needed for permanent remove");
}
if (ShouldProcess(path, "RemoveItem"))
{
pf.DeleteFolderPermanently(fol);
}
}
}
else
{
if (ShouldProcess(path, "RemoveItem"))
{
fol.Delete();
}
}
}
else if (job is JFSFile)
{
JFSFile fil = job as JFSFile;
if (parameters.Permanent)
{
JFSObject parent = pathObjects.Count > 1 ? pathObjects[pathObjects.Count - 2] : null;
if (parent is JFSMountPoint)
{
JFSMountPoint mnt = parent as JFSMountPoint;
if (mnt == null)
{
throw new ArgumentException("Failed to find parent item needed for permanent remove");
}
if (ShouldProcess(path, "RemoveItem"))
{
mnt.DeleteFilePermanently(fil);
}
}
else if (parent is JFSFolder)
{
JFSFolder pf = parent as JFSFolder;
if (pf == null)
{
throw new ArgumentException("Failed to find parent item needed for permanent remove");
}
if (ShouldProcess(path, "RemoveItem"))
{
pf.DeleteFilePermanently(fil);
}
}
}
else
{
if (ShouldProcess(path, "RemoveItem"))
{
fil.Delete();
}
}
}
else
{
throw new ArgumentException("Remove not supported for this item");
}
}
protected override void NewItem(string path, string itemTypeName, object newItemValue)
{
NewItemDynamicParameters parameters = DynamicParameters as NewItemDynamicParameters;
// The itemTypeName is the type of path of the container:
// - If a drive is specified, then a device can be created under it.
// - If a device is specified a mount point can be created under it.
// - If mount point or folder a folder can be created under it (or file, but we currently does not support creating for instance empty file using the NewItem operation).
string itemName = newItemValue as string;
if (String.IsNullOrEmpty(itemName))
{
throw new ArgumentException("Value argument must be name of the item to be created");
}
if (String.Equals(itemTypeName, "device", StringComparison.OrdinalIgnoreCase))
{
if (PathIsDrive(path))
{
if (ShouldProcess(itemName, "New device"))
{
WriteItemObject(JAFS.NewDevice(itemName, parameters.DeviceType), path + PSPathSeparator + itemName, true);
}
}
else
{
throw new ArgumentException("A device can only be created at root level");
}
}
else if (String.Equals(itemTypeName, "mountpoint", StringComparison.OrdinalIgnoreCase))
{
if (!PathIsDrive(path))
{
Collection <JFSObject> pathObjects = JAFS.GetPathObjects(JAFSPath(path));
JFSDevice dev = pathObjects.Count > 0 ? pathObjects[pathObjects.Count - 1] as JFSDevice : null;
if (dev != null)
{
if (ShouldProcess(itemName, "New mount point"))
{
WriteItemObject(dev.NewMountpoint(itemName), path + PSPathSeparator + itemName, true);
}
}
else
{
throw new ArgumentException("A mountpoint can only be created from a device and the specified path does not represent one");
}
}
else
{
throw new ArgumentException("A mountpoint can only be created from a device and the specified path does not represent one");
}
}
else if (String.Equals(itemTypeName, "folder", StringComparison.OrdinalIgnoreCase))
{
if (!PathIsDrive(path))
{
Collection <JFSObject> pathObjects = JAFS.GetPathObjects(JAFSPath(path));
JFSObject job = pathObjects.Count > 0 ? pathObjects[pathObjects.Count - 1] : null;
if (job is JFSMountPoint)
{
JFSMountPoint mnt = job as JFSMountPoint;
if (mnt != null)
{
if (ShouldProcess(itemName, "New folder"))
{
WriteItemObject(mnt.NewFolder(itemName), path + PSPathSeparator + itemName, true);
}
}
}
else if (job is JFSFolder)
{
JFSFolder pf = job as JFSFolder;
if (pf != null)
{
if (ShouldProcess(itemName, "New folder"))
{
WriteItemObject(pf.NewFolder(itemName), path + PSPathSeparator + itemName, true);
}
}
}
else
{
throw new ArgumentException("A folder can only be created from a mount point or folder and the specified path does not represent one");
}
}
else
{
throw new ArgumentException("A folder can only be created from a mount point or folder and the specified path does not represent one");
}
}
else if (String.Equals(itemTypeName, "file", StringComparison.OrdinalIgnoreCase))
{
if (!PathIsDrive(path))
{
Collection <JFSObject> pathObjects = JAFS.GetPathObjects(JAFSPath(path));
JFSObject job = pathObjects.Count > 0 ? pathObjects[pathObjects.Count - 1] : null;
if (job is JFSMountPoint)
{
JFSMountPoint mnt = job as JFSMountPoint;
if (mnt != null)
{
if (ShouldProcess(itemName, "New file"))
{
WriteItemObject(mnt.NewFile(itemName, new byte[0]), path + PSPathSeparator + itemName, false);
}
}
}
else if (job is JFSFolder)
{
JFSFolder pf = job as JFSFolder;
if (pf != null)
{
if (ShouldProcess(itemName, "New file"))
{
WriteItemObject(pf.NewFile(itemName, new byte[0]), path + PSPathSeparator + itemName, false);
}
}
}
else
{
throw new ArgumentException("A file can only be created from a mount point or folder and the specified path does not represent one");
}
}
else
{
throw new ArgumentException("A file can only be created from a mount point or folder and the specified path does not represent one");
}
}
else
{
WriteError(new ErrorRecord(new ArgumentException("Type must be one of the following: device, mountpoint or folder"),
"CannotCreateSpecifiedObject", ErrorCategory.InvalidArgument, path));
throw new ArgumentException("This provider can only create items of types \"device\", \"mountpoint\" and \"folder\"");
}
}
