MatchResourceAccessorFactory.java

/*******************************************************************************
 * Copyright (c) 2013, 2014 Obeo.
 * 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:
 *     Obeo - initial API and implementation
 *******************************************************************************/
package org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.factory.impl;

import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.compare.MatchResource;
import org.eclipse.emf.compare.rcp.ui.contentmergeviewer.accessor.legacy.ITypedElement;
import org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.impl.ResourceStreamAccessorImpl;
import org.eclipse.emf.ecore.resource.Resource;

/**
 * A specific {@link org.eclipse.emf.compare.rcp.ui.contentmergeviewer.accessor.factory.IAccessorFactory} for
 * {@link MatchResource} objects.
 * 
 * @author <a href="mailto:mikael.barbero@obeo.fr">Mikael Barbero</a>
 * @since 4.0
 */
public class MatchResourceAccessorFactory extends AbstractAccessorFactory {

	/**
	 * {@inheritDoc}
	 * 
	 * @see org.eclipse.emf.compare.rcp.ui.contentmergeviewer.accessor.factory.IAccessorFactory#isFactoryFor(java.lang.Object)
	 */
	public boolean isFactoryFor(Object target) {
		return target instanceof MatchResource;
	}

	/**
	 * {@inheritDoc}
	 * 
	 * @see org.eclipse.emf.compare.rcp.ui.contentmergeviewer.accessor.factory.IAccessorFactory#createLeft(org.eclipse.emf.common.notify.AdapterFactory,
	 *      java.lang.Object)
	 */
	public ITypedElement createLeft(AdapterFactory adapterFactory, Object target) {
		MatchResource matchResource = (MatchResource)target;
		Resource resource = matchResource.getLeft();
		if (resource != null) {
			return new ResourceStreamAccessorImpl(adapterFactory, resource);
		}
		return null;
	}

	/**
	 * {@inheritDoc}
	 * 
	 * @see org.eclipse.emf.compare.rcp.ui.contentmergeviewer.accessor.factory.IAccessorFactory#createRight(org.eclipse.emf.common.notify.AdapterFactory,
	 *      java.lang.Object)
	 */
	public ITypedElement createRight(AdapterFactory adapterFactory, Object target) {
		MatchResource matchResource = (MatchResource)target;
		Resource resource = matchResource.getRight();
		if (resource != null) {
			return new ResourceStreamAccessorImpl(adapterFactory, resource);
		}
		return null;
	}

	/**
	 * {@inheritDoc}
	 * 
	 * @see org.eclipse.emf.compare.rcp.ui.contentmergeviewer.accessor.factory.IAccessorFactory#createAncestor(org.eclipse.emf.common.notify.AdapterFactory,
	 *      java.lang.Object)
	 */
	public ITypedElement createAncestor(AdapterFactory adapterFactory, Object target) {
		MatchResource matchResource = (MatchResource)target;
		Resource resource = matchResource.getOrigin();
		if (resource != null) {
			return new ResourceStreamAccessorImpl(adapterFactory, resource);
		}
		return null;
	}

}