NameUrlContentProvider.java

/*******************************************************************************
 *  Copyright (c) 2012 VMware, Inc.
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License v1.0
 *  which accompanies this distribution, and is available at
 *  http://www.eclipse.org/legal/epl-v10.html
 *
 *  Contributors:
 *      VMware, Inc. - initial API and implementation
 *******************************************************************************/
package org.springframework.ide.eclipse.wizard.template.util;

import java.util.Collection;
import java.util.List;

import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.Viewer;

class NameUrlContentProvider implements IStructuredContentProvider {

	public void dispose() {
		// nothing to dispose
	}

	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
		// do nothing
	}

	@SuppressWarnings("rawtypes")
	public Object[] getElements(Object inputElement) {
		if (inputElement instanceof AbstractNameUrlPreferenceModel) {
			List<NameUrlPair> pairs = ((AbstractNameUrlPreferenceModel) inputElement).getElements();
			return pairs.toArray();
		}
		else {
			if (inputElement instanceof Object[]) {
				return (Object[]) inputElement;
			}
			if (inputElement instanceof Collection) {
				return ((Collection) inputElement).toArray();
			}
			return new Object[0];
		}

	}

}