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// **********************************************************************
//
// Copyright (c) 2003-2009 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.
//
// **********************************************************************
package FilesystemI;
import Ice.*;
import Filesystem.*;
public class DirectoryI extends _DirectoryDisp implements NodeI
{
// Slice name() operation.
public synchronized String
name(Current c)
{
if(_destroyed)
{
throw new ObjectNotExistException();
}
return _name;
}
// Return the object identity for this node.
public Identity
id()
{
return _id;
}
// Slice list() operation.
public synchronized NodeDesc[]
list(Current c)
{
if(_destroyed)
{
throw new ObjectNotExistException();
}
NodeDesc[] ret = new NodeDesc[_contents.size()];
java.util.Iterator<java.util.Map.Entry<String, NodeI> > pos = _contents.entrySet().iterator();
for(int i = 0; i < _contents.size(); ++i)
{
java.util.Map.Entry<String, NodeI> e = pos.next();
NodeI p = e.getValue();
ret[i] = new NodeDesc();
ret[i].name = e.getKey();
ret[i].type = p instanceof FileI ? NodeType.FileType : NodeType.DirType;
ret[i].proxy = NodePrxHelper.uncheckedCast(c.adapter.createProxy(p.id()));
}
return ret;
}
// Slice find() operation.
public synchronized NodeDesc
find(String name, Current c) throws NoSuchName
{
if(_destroyed)
{
throw new ObjectNotExistException();
}
NodeI p = _contents.get(name);
if(p == null)
{
throw new NoSuchName(name);
}
NodeDesc d = new NodeDesc();
d.name = name;
d.type = p instanceof FileI ? NodeType.FileType : NodeType.DirType;
d.proxy = NodePrxHelper.uncheckedCast(c.adapter.createProxy(p.id()));
return d;
}
// Slice createFile() operation.
public synchronized FilePrx
createFile(String name, Current c) throws NameInUse
{
if(_destroyed)
{
throw new ObjectNotExistException();
}
if(name.length() == 0 || _contents.containsKey(name))
{
throw new NameInUse(name);
}
FileI f = new FileI(name, this);
ObjectPrx node = c.adapter.add(f, f.id());
_contents.put(name, f);
return FilePrxHelper.uncheckedCast(node);
}
// Slice createDirectory() operation.
public synchronized DirectoryPrx
createDirectory(String name, Current c) throws NameInUse
{
if(_destroyed)
{
throw new ObjectNotExistException();
}
if(name.length() == 0 || _contents.containsKey(name))
{
throw new NameInUse(name);
}
DirectoryI d = new DirectoryI(name, this);
ObjectPrx node = c.adapter.add(d, d.id());
_contents.put(name, d);
return DirectoryPrxHelper.uncheckedCast(node);
}
// Slice destroy() operation.
public void
destroy(Current c) throws PermissionDenied
{
if(_parent == null)
{
throw new PermissionDenied("Cannot destroy root directory");
}
synchronized(this)
{
if(_destroyed)
{
throw new ObjectNotExistException();
}
if(_contents.size() != 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 java.util.HashMap<String, NodeI>();
_id.name = parent == null ? "RootDir" : Util.generateUUID();
}
// Remove the entry from the _contents map.
public synchronized void
removeEntry(String name)
{
_contents.remove(name);
}
private String _name; // Immutable
private DirectoryI _parent; // Immutable
private Identity _id; // Immutable
private boolean _destroyed;
private java.util.Map<String, NodeI> _contents;
}
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