/*******************************************************************************
 * Copyright (C) 2007 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.workbench.ui.views.contextualviews.merge;

import java.awt.event.ActionEvent;
import java.util.List;

import javax.swing.AbstractAction;

import net.sf.taverna.t2.workbench.edits.EditException;
import net.sf.taverna.t2.workbench.edits.EditManager;
import net.sf.taverna.t2.workbench.selection.SelectionManager;
import net.sf.taverna.t2.workflow.edits.ReorderMergePositionsEdit;

import org.apache.log4j.Logger;

import uk.org.taverna.scufl2.api.container.WorkflowBundle;
import uk.org.taverna.scufl2.api.core.DataLink;

/**
 * Configuration action for a Merge. This action changes the order of
 * merge's incoming ports.
 *
 * @author Alex Nenadic
 *
 */
@SuppressWarnings("serial")
class MergeConfigurationAction extends AbstractAction {
	private static Logger logger = Logger
			.getLogger(MergeConfigurationAction.class);

	private final List<DataLink> reorderedDataLinksList;
	private final List<DataLink> datalinks;
	private final EditManager editManager;
	private final SelectionManager selectionManager;

	MergeConfigurationAction(List<DataLink> datalinks,
			List<DataLink> reorderedDataLinksList, EditManager editManager,
			SelectionManager selectionManager) {
		this.datalinks = datalinks;
		this.reorderedDataLinksList = reorderedDataLinksList;
		this.editManager = editManager;
		this.selectionManager = selectionManager;
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		ReorderMergePositionsEdit edit = new ReorderMergePositionsEdit(
				datalinks, reorderedDataLinksList);

		WorkflowBundle bundle = selectionManager.getSelectedWorkflowBundle();

		try {
			editManager.doDataflowEdit(bundle, edit);
		} catch (IllegalStateException ex1) {
			logger.error("Could not configure merge", ex1);
		} catch (EditException ex2) {
			logger.error("Could not configure merge", ex2);
		}
	}
}