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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.
//
// **********************************************************************
import Filesystem.*;
public final class DirectoryI extends PersistentDirectory
{
public
DirectoryI()
{
_destroyed = false;
nodes = new java.util.HashMap<java.lang.String, NodeDesc>();
}
@Override
public synchronized String
name(Ice.Current current)
{
if(_destroyed)
{
throw new Ice.ObjectNotExistException(current.id, current.facet, current.operation);
}
return nodeName;
}
@Override
public void
destroy(Ice.Current current)
throws PermissionDenied
{
if(parent == null)
{
throw new PermissionDenied("Cannot destroy root directory");
}
synchronized(this)
{
if(_destroyed)
{
throw new Ice.ObjectNotExistException(current.id, current.facet, current.operation);
}
if(!nodes.isEmpty())
{
throw new PermissionDenied("Cannot destroy non-empty directory");
}
_destroyed = true;
}
//
// Because we use a transactional evictor, these updates are guaranteed to be atomic.
//
parent.removeNode(nodeName);
_evictor.remove(current.id);
}
@Override
public synchronized NodeDesc[]
list(Ice.Current current)
{
if(_destroyed)
{
throw new Ice.ObjectNotExistException(current.id, current.facet, current.operation);
}
NodeDesc[] result = new NodeDesc[nodes.size()];
int i = 0;
java.util.Iterator<NodeDesc> p = nodes.values().iterator();
while(p.hasNext())
{
result[i++] = p.next();
}
return result;
}
@Override
public synchronized NodeDesc
find(String name, Ice.Current current)
throws NoSuchName
{
if(_destroyed)
{
throw new Ice.ObjectNotExistException(current.id, current.facet, current.operation);
}
if(!nodes.containsKey(name))
{
throw new NoSuchName(name);
}
return nodes.get(name);
}
@Override
public synchronized DirectoryPrx
createDirectory(String name, Ice.Current current)
throws NameInUse
{
if(_destroyed)
{
throw new Ice.ObjectNotExistException(current.id, current.facet, current.operation);
}
if(name.length() == 0 || nodes.containsKey(name))
{
throw new NameInUse(name);
}
Ice.Identity id = current.adapter.getCommunicator().stringToIdentity(java.util.UUID.randomUUID().toString());
PersistentDirectory dir = new DirectoryI();
dir.nodeName = name;
dir.parent = PersistentDirectoryPrxHelper.uncheckedCast(current.adapter.createProxy(current.id));
DirectoryPrx proxy = DirectoryPrxHelper.uncheckedCast(_evictor.add(dir, id));
NodeDesc nd = new NodeDesc();
nd.name = name;
nd.type = NodeType.DirType;
nd.proxy = proxy;
nodes.put(name, nd);
return proxy;
}
@Override
public synchronized FilePrx
createFile(String name, Ice.Current current)
throws NameInUse
{
if(_destroyed)
{
throw new Ice.ObjectNotExistException(current.id, current.facet, current.operation);
}
if(name.length() == 0 || nodes.containsKey(name))
{
throw new NameInUse(name);
}
Ice.Identity id = current.adapter.getCommunicator().stringToIdentity(java.util.UUID.randomUUID().toString());
PersistentFile file = new FileI();
file.nodeName = name;
file.parent = PersistentDirectoryPrxHelper.uncheckedCast(current.adapter.createProxy(current.id));
FilePrx proxy = FilePrxHelper.uncheckedCast(_evictor.add(file, id));
NodeDesc nd = new NodeDesc();
nd.name = name;
nd.type = NodeType.FileType;
nd.proxy = proxy;
nodes.put(name, nd);
return proxy;
}
@Override
public synchronized void
removeNode(String name, Ice.Current current)
{
assert(nodes.containsKey(name));
nodes.remove(name);
}
public static Freeze.Evictor _evictor;
private boolean _destroyed;
}
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