HybridProjectContentProvider.java

/*******************************************************************************
 * Copyright (c) 2013, 2014 Red Hat, 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:
 * 		 Red Hat Inc. - initial API and implementation and/or initial documentation
 *******************************************************************************/
package org.eclipse.thym.ui.util;

import java.util.List;

import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.thym.core.HybridCore;
import org.eclipse.thym.core.HybridProject;

public class HybridProjectContentProvider implements IStructuredContentProvider {
	
	private List<HybridProject> projects;
	
	@Override
	public void dispose() {
	}

	@SuppressWarnings("unchecked")
	@Override
	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
		try {
			projects = (List<HybridProject>) newInput;
		} catch (ClassCastException e) {
			// Warn the developer that he is doing something wrong
			Assert.isTrue( false, "input is not of correct type this content provider can only work with List<HybridProject> type inputs");
		}
	}

	@Override
	public Object[] getElements(Object inputElement) {
		if(projects == null ){
			projects = HybridCore.getHybridProjects();
		}
		return projects.toArray();
	}

}