plugins/org.eclipse.m2m.atl.drivers.mdr4atl/src/org/openide/util/lookup/ATLLookup.java

/*******************************************************************************
 * Copyright (c) 2004 INRIA and other.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * Contributors:
 *    Frederic Jouault (INRIA) - initial API and implementation
 *******************************************************************************/
package org.openide.util.lookup;

import org.netbeans.lib.jmi.mapping.JMIMapperCFImpl;
import org.netbeans.lib.jmi.mapping.JMIMapperImpl;
import org.netbeans.lib.jmi.util.Logger;
import org.netbeans.lib.jmi.xmi.ConsumerFactory;
import org.netbeans.lib.jmi.xmi.ProducerFactory;
import org.netbeans.lib.jmi.xmi.ReaderFactory;
import org.netbeans.lib.jmi.xmi.WriterFactory;
import org.netbeans.lib.jmi.xmi.XMISaxReaderImpl;
import org.netbeans.lib.jmi.xmi.XMIWriterImpl;
import org.netbeans.lib.jmi.xmi.XmiDtdProducer;
import org.netbeans.mdr.NBMDRManagerImpl;
import org.openide.util.Lookup;

/**
 * This class seems necessary to make MDR work within Eclipse.
 * @author <a href="mailto:frederic.jouault@univ-nantes.fr">Frederic Jouault</a>
 */
public class ATLLookup extends Lookup {

	private ProxyLookup delegate = new ProxyLookup();

	private boolean inited = false;

	private void called() {
		if(!inited) {
			inited = true;
			delegate.setLookups(new Lookup[] {
				Lookups.singleton(new XMISaxReaderImpl()),
				Lookups.singleton(new XMIWriterImpl()),
				Lookups.singleton(new XmiDtdProducer()),
				Lookups.singleton(new JMIMapperImpl()),
				Lookups.singleton(new JMIMapperCFImpl()),
				Lookups.singleton(new ReaderFactory()),
				Lookups.singleton(new WriterFactory()),
				Lookups.singleton(new ConsumerFactory()),
				Lookups.singleton(new ProducerFactory()),
				Lookups.singleton(new Logger()),
				Lookups.singleton(new NBMDRManagerImpl())
			});
		}
	}

	public Object lookup(Class clazz) {
		called();
		Object ret = delegate.lookup(clazz);
		return ret;
	}


	public Lookup.Result lookup(Lookup.Template template) {
		called();
		Lookup.Result ret = delegate.lookup(template);
		return ret;
	}
}