/*
* Copyright (C) 2011 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.portal.mop.navigation;
/**
* @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
*/
public class NodeContextChangeAdapter<N> implements NodeChangeListener<NodeContext<N>>
{
public static <N> NodeChangeListener<NodeContext<N>> safeWrap(NodeChangeListener<N> wrapped)
{
if (wrapped == null)
{
return null;
}
else
{
return new NodeContextChangeAdapter<N>(wrapped);
}
}
/** . */
private final NodeChangeListener<N> wrapped;
public NodeContextChangeAdapter(NodeChangeListener<N> wrapped)
{
if (wrapped == null)
{
throw new NullPointerException();
}
this.wrapped = wrapped;
}
public void onAdd(NodeContext<N> target, NodeContext<N> parent, NodeContext<N> previous)
{
wrapped.onAdd(unwrap(target), unwrap(parent), unwrap(previous));
}
public void onCreate(NodeContext<N> target, NodeContext<N> parent, NodeContext<N> previous, String name)
{
wrapped.onCreate(unwrap(target), unwrap(parent), unwrap(previous), name);
}
public void onRemove(NodeContext<N> target, NodeContext<N> parent)
{
wrapped.onRemove(unwrap(target), unwrap(parent));
}
public void onDestroy(NodeContext<N> target, NodeContext<N> parent)
{
wrapped.onDestroy(unwrap(target), unwrap(parent));
}
public void onRename(NodeContext<N> target, NodeContext<N> parent, String name)
{
wrapped.onRename(unwrap(target), unwrap(parent), name);
}
public void onUpdate(NodeContext<N> target, NodeState state)
{
wrapped.onUpdate(unwrap(target), state);
}
public void onMove(NodeContext<N> target, NodeContext<N> from, NodeContext<N> to, NodeContext<N> previous)
{
wrapped.onMove(unwrap(target), unwrap(from), unwrap(to), unwrap(previous));
}
private N unwrap(NodeContext<N> context)
{
return context != null ? context.getNode() : null;
}
}