taverna-edits-api/src/main/java/org/apache/taverna/workflow/edits/ChangeJsonEdit.java

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/

package org.apache.taverna.workflow.edits;

import org.apache.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);
	}
}