/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.directory.studio.ldapservers.wizards;
import java.util.List;
import org.apache.commons.collections.map.MultiValueMap;
import org.apache.directory.studio.ldapservers.LdapServerAdapterExtensionsManager;
import org.apache.directory.studio.ldapservers.model.LdapServerAdapterExtension;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
/**
* This class implements a {@link ITreeContentProvider} for LDAP Server Adapter Extensions {@link TreeViewer}.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public class LdapServerAdapterExtensionsContentProvider implements ITreeContentProvider
{
/** The {@link MultiValueMap} used to store LDAP Server Adapter Extensions and order them by vendor (used as key) */
private MultiValueMap ldapServerAdapterExtensionsMap = new MultiValueMap();
/**
* Creates a new instance of LdapServerAdaptersContentProvider.
*/
public LdapServerAdapterExtensionsContentProvider()
{
for ( LdapServerAdapterExtension extension : LdapServerAdapterExtensionsManager.getDefault()
.getLdapServerAdapterExtensions() )
{
ldapServerAdapterExtensionsMap.put( extension.getVendor(), extension );
}
}
/**
* {@inheritDoc}
*/
public Object[] getElements( Object inputElement )
{
return ldapServerAdapterExtensionsMap.keySet().toArray();
}
/**
* {@inheritDoc}
*/
public Object[] getChildren( Object parentElement )
{
Object children = ldapServerAdapterExtensionsMap.get( parentElement );
if ( children != null )
{
if ( children instanceof List )
{
return ( ( List<?> ) children ).toArray();
}
else
{
return new Object[]
{ children };
}
}
return null;
}
/**
* {@inheritDoc}
*/
public boolean hasChildren( Object element )
{
if ( element instanceof String )
{
return true;
}
return false;
}
/**
* {@inheritDoc}
*/
public void dispose()
{
// Nothing to do
}
/**
* {@inheritDoc}
*/
public void inputChanged( Viewer viewer, Object oldInput, Object newInput )
{
// Nothing to do
}
/**
* {@inheritDoc}
*/
public Object getParent( Object element )
{
// Hierarchy is only descending.
// Should not be used.
return null;
}
}