/*******************************************************************************
 * Copyright (C) 2012 The University of Manchester
 *
 *  Modifications to the initial code base are copyright of their
 *  respective authors, or their employers as appropriate.
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public License
 *  as published by the Free Software Foundation; either version 2.1 of
 *  the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 ******************************************************************************/
package net.sf.taverna.t2.workflow.edits;

import uk.org.taverna.scufl2.api.configurations.Configuration;

import com.fasterxml.jackson.databind.JsonNode;

/**
 * Changes the JSON of a configuration.
 * 
 * @author David Withers
 */
public class ChangeJsonEdit extends AbstractEdit<Configuration> {
	private JsonNode oldJson, newJson;

	public ChangeJsonEdit(Configuration configuration, JsonNode newJson) {
		super(configuration);
		this.newJson = newJson;
		newJson = configuration.getJson();
	}

	@Override
	protected void doEditAction(Configuration configuration) {
		configuration.setJson(newJson);
	}

	@Override
	protected void undoEditAction(Configuration configuration) {
		configuration.setJson(oldJson);
	}
}