/*******************************************************************************
 * Copyright (c) 2013 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.command.impl;

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

import org.eclipse.emf.common.notify.Notifier;
import org.eclipse.emf.compare.Diff;
import org.eclipse.emf.compare.domain.IMergeRunnable;
import org.eclipse.emf.compare.merge.IMerger;
import org.eclipse.emf.ecore.change.util.ChangeRecorder;

/**
 * A merge command that delegates it {@link #doExecute()} to the
 * {@link IMergeRunnable#merge(List, boolean, IMerger.Registry)} method.
 * 
 * @author <a href="mailto:mikael.barbero@obeo.fr">Mikael Barbero</a>
 */
public class MergeCommand extends AbstractCopyCommand {

	/** The merge runnable to delegate to. */
	private final IMergeRunnable runnable;

	/**
	 * Creates a new instance.
	 * 
	 * @param changeRecorder
	 *            The change recorder associated to this command.
	 * @param notifiers
	 *            The collection of notifiers that will be notified of this command's execution.
	 * @param differences
	 *            The list of differences that this command should merge.
	 * @param leftToRight
	 *            The direction in which {@code differences} should be merged.
	 * @param mergerRegistry
	 *            The registry of mergers.
	 * @param runnable
	 *            The merge runnable to delegate to.
	 */
	public MergeCommand(ChangeRecorder changeRecorder, Collection<Notifier> notifiers,
			List<? extends Diff> differences, boolean leftToRight, IMerger.Registry mergerRegistry,
			IMergeRunnable runnable) {
		super(changeRecorder, notifiers, differences, leftToRight, mergerRegistry);
		this.runnable = runnable;
	}

	/**
	 * {@inheritDoc}
	 * 
	 * @see org.eclipse.emf.edit.command.ChangeCommand#doExecute()
	 */
	@Override
	protected void doExecute() {
		runnable.merge(differences, leftToRight, mergerRegistry);
	}

}