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 *  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,
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 *  KIND, either express or implied.  See the License for the
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package org.apache.cayenne.modeler.action;

import java.awt.event.ActionEvent;

import org.apache.cayenne.access.DataDomain;
import org.apache.cayenne.map.DataMap;
import org.apache.cayenne.modeler.Application;
import org.apache.cayenne.modeler.ProjectController;
import org.apache.cayenne.modeler.util.CayenneAction;
import org.apache.cayenne.project.NamedObjectFactory;
import org.apache.cayenne.project.ProjectPath;

/**
 * Action that creates new DataMap in the project.
 * 
 * @author Misha Shengaout
 * @author Andrei Adamchik
 */
public class CreateDataMapAction extends CayenneAction {

	public static String getActionName() {
		return "Create DataMap";
	}

    public CreateDataMapAction(Application application) {
        super(getActionName(), application);
    }

    public String getIconName() {
        return "icon-datamap.gif";
    }

    /** Calls addDataMap() or creates new data map if no data node selected.*/
    protected void createDataMap() {
        ProjectController mediator = getProjectController();
        DataDomain currentDomain = mediator.getCurrentDataDomain();
        
        // use domain name as DataMap base, as map names must be unique across the project...
        DataMap map =
            (DataMap) NamedObjectFactory.createObject(
                DataMap.class,
                currentDomain,
                currentDomain.getName() + "Map");
        mediator.addDataMap(this, map);
    }

    public void performAction(ActionEvent e) {
        createDataMap();
    }

    /**
    * Returns <code>true</code> if path contains a DataDomain object.
    */
    public boolean enableForPath(ProjectPath path) {
        if (path == null) {
            return false;
        }

        return path.firstInstanceOf(DataDomain.class) != null;
    }
}
