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 *   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
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 *  to you under the Apache License, Version 2.0 (the
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package org.apache.cayenne.modeler.action;

import java.awt.event.ActionEvent;

import org.apache.cayenne.configuration.ConfigurationNode;
import org.apache.cayenne.configuration.DataChannelDescriptor;
import org.apache.cayenne.configuration.DataNodeDescriptor;
import org.apache.cayenne.map.DataMap;
import org.apache.cayenne.modeler.Application;
import org.apache.cayenne.modeler.ProjectController;
import org.apache.cayenne.modeler.undo.CreateDataMapUndoableEdit;
import org.apache.cayenne.modeler.util.CayenneAction;
import org.apache.cayenne.resource.Resource;
import org.apache.cayenne.util.NamedObjectFactory;

/**
 * Action that creates new DataMap in the project.
 * 
 */
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. */
    public void createDataMap(DataMap map) {
        ProjectController mediator = getProjectController();
        mediator.addDataMap(this, map);
    }

    public void performAction(ActionEvent e) {
        ProjectController mediator = getProjectController();

        DataChannelDescriptor currentDomain = (DataChannelDescriptor) mediator
                .getProject()
                .getRootNode();

        DataMap map = (DataMap) NamedObjectFactory.createObject(
                DataMap.class,
                currentDomain);

        // set configuration source for new dataMap
        Resource baseResource = currentDomain.getConfigurationSource();

        if (baseResource != null) {
            Resource dataMapResource = baseResource.getRelativeResource(map.getName());

            map.setConfigurationSource(dataMapResource);
        }

        createDataMap(map);

        application.getUndoManager().addEdit(
                new CreateDataMapUndoableEdit(currentDomain, map));
    }

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

        return ((DataNodeDescriptor) object).getDataChannelDescriptor() != null;
    }
}