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/*******************************************************************************
* Copyright (c) 2006-2011 Gluster, Inc. <http://www.gluster.com>
* This file is part of Gluster Management Console.
*
* Gluster Management Console is free software; you can redistribute
* it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* Gluster Management Console 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*******************************************************************************/
package org.gluster.storage.management.console.views.pages;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
import org.gluster.storage.management.core.model.Disk;
import org.gluster.storage.management.core.model.Partition;
public class DiskTreeContentProvider implements ITreeContentProvider {
private List<Disk> disks = new ArrayList<Disk>();
public DiskTreeContentProvider(List<Disk> disks) {
this.disks = disks;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
*/
@SuppressWarnings("unchecked")
public Object[] getElements(Object inputElement) {
return ((List<Disk>) inputElement).toArray();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IContentProvider#dispose()
*/
public void dispose() {
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer,
* java.lang.Object, java.lang.Object)
*/
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
*/
public Object[] getChildren(Object parentElement) {
if(parentElement instanceof Disk) {
return ((Disk)parentElement).getPartitions().toArray();
} else {
return null;
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
*/
public Object getParent(Object element) {
if (element == null) {
return null;
}
if(element instanceof Partition) {
// find the disk of this partition and return
return getDiskForPartition((Partition)element);
} else {
return null;
}
}
private Disk getDiskForPartition(Partition partition) {
for(Disk disk : disks) {
for(Partition diskPartition : disk.getPartitions()) {
if(partition.getName().equals(diskPartition.getName())) {
return disk;
}
}
}
return null;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
*/
public boolean hasChildren(Object element) {
return (element instanceof Disk && ((Disk)element).getPartitions().size() > 0);
}
}
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