taverna-edits-api/src/main/java/org/apache/taverna/workflow/edits/RemoveActivityOutputPortMappingEdit.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.activity.Activity;
import org.apache.taverna.scufl2.api.port.OutputActivityPort;
import org.apache.taverna.scufl2.api.profiles.ProcessorBinding;
import org.apache.taverna.scufl2.api.profiles.ProcessorOutputPortBinding;

public class RemoveActivityOutputPortMappingEdit extends AbstractEdit<Activity> {
	private final OutputActivityPort outputActivityPort;
	private ProcessorOutputPortBinding removedPortBinding;
	private ProcessorBinding processorBinding;

	public RemoveActivityOutputPortMappingEdit(Activity activity,
			OutputActivityPort outputActivityPort) {
		super(activity);
		this.outputActivityPort = outputActivityPort;
	}

	@Override
	protected void doEditAction(Activity activity) {
		removedPortBinding = scufl2Tools.processorPortBindingForPort(
				outputActivityPort, activity.getParent());
		processorBinding = removedPortBinding.getParent();
		removedPortBinding.setParent(null);
	}

	@Override
	protected void undoEditAction(Activity activity) {
		removedPortBinding.setParent(processorBinding);
	}
}