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// **********************************************************************
//
// Copyright (c) 2003-2015 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
using System;
using System.Collections;
using Ice;
using Filesystem;
namespace FilesystemI
{
public class DirectoryI : DirectoryDisp_, NodeI, DirectoryOperations_
{
// Slice name() operation.
public override string name(Current c)
{
lock(this)
{
if(_destroyed)
{
throw new ObjectNotExistException();
}
return _name;
}
}
// Return the object identity for this node.
public virtual Identity id()
{
return _id;
}
// Slice list() operation.
public override NodeDesc[] list(Current c)
{
lock(this)
{
if(_destroyed)
{
throw new ObjectNotExistException();
}
NodeDesc[] ret = new NodeDesc[_contents.Count];
int i = 0;
foreach(DictionaryEntry e in _contents)
{
NodeI p = (NodeI)e.Value;
ret[i] = new NodeDesc();
ret[i].name = (string)e.Key;
ret[i].type = p is FileI ? NodeType.FileType : NodeType.DirType;
ret[i].proxy = NodePrxHelper.uncheckedCast(c.adapter.createProxy(p.id()));
++i;
}
return ret;
}
}
// Slice find() operation.
public override NodeDesc find(string name, Current c)
{
lock(this)
{
if(_destroyed)
{
throw new ObjectNotExistException();
}
NodeI p = (NodeI) _contents[name];
if(p == null)
{
throw new NoSuchName(name);
}
NodeDesc d = new NodeDesc();
d.name = name;
d.type = p is FileI ? NodeType.FileType : NodeType.DirType;
d.proxy = NodePrxHelper.uncheckedCast(c.adapter.createProxy(p.id()));
return d;
}
}
// Slice createFile() operation.
public override FilePrx createFile(string name, Current c)
{
lock(this)
{
if(_destroyed)
{
throw new ObjectNotExistException();
}
if(name.Length == 0 || _contents.Contains(name))
{
throw new NameInUse(name);
}
FileI f = new FileI(name, this);
ObjectPrx node = c.adapter.add(f, f.id());
_contents.Add(name, f);
return FilePrxHelper.uncheckedCast(node);
}
}
// Slice createDirectory() operation.
public override DirectoryPrx createDirectory(string name, Current c)
{
lock(this)
{
if(_destroyed)
{
throw new ObjectNotExistException();
}
if(name.Length == 0 || _contents.Contains(name))
{
throw new NameInUse(name);
}
DirectoryI d = new DirectoryI(name, this);
ObjectPrx node = c.adapter.add(d, d.id());
_contents.Add(name, d);
return DirectoryPrxHelper.uncheckedCast(node);
}
}
// Slice destroy() operation.
public override void destroy(Current c)
{
if(_parent == null)
{
throw new PermissionDenied("Cannot destroy root directory");
}
lock(this)
{
if(_destroyed)
{
throw new ObjectNotExistException();
}
if(_contents.Count != 0)
{
throw new PermissionDenied("Cannot destroy non-empty directory");
}
c.adapter.remove(id());
_destroyed = true;
}
_parent.removeEntry(_name);
}
// DirectoryI constructor for root directory.
public DirectoryI()
: this("/", null)
{
}
// DirectoryI constructor. parent == null indicates root directory.
public DirectoryI(string name, DirectoryI parent)
{
_name = name;
_parent = parent;
_id = new Identity();
_destroyed = false;
_contents = new Hashtable();
if(parent == null)
{
_id.name = "RootDir";
}
else
{
_id.name = Guid.NewGuid().ToString();
}
}
// Remove the entry from the _contents map.
public void removeEntry(String name)
{
_contents.Remove(name);
}
private string _name; // Immutable
private DirectoryI _parent; // Immutable
private Identity _id; // Immutable
private bool _destroyed;
private IDictionary _contents;
}
}
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