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* 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
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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 javax.sql.DataSource;
import org.apache.cayenne.access.DataDomain;
import org.apache.cayenne.access.DataNode;
import org.apache.cayenne.conf.DriverDataSourceFactory;
import org.apache.cayenne.conn.DataSourceInfo;
import org.apache.cayenne.map.event.DataNodeEvent;
import org.apache.cayenne.map.event.MapEvent;
import org.apache.cayenne.modeler.Application;
import org.apache.cayenne.modeler.ProjectController;
import org.apache.cayenne.modeler.event.DataNodeDisplayEvent;
import org.apache.cayenne.modeler.util.CayenneAction;
import org.apache.cayenne.modeler.util.ModelerDbAdapter;
import org.apache.cayenne.project.NamedObjectFactory;
import org.apache.cayenne.project.ProjectDataSource;
import org.apache.cayenne.project.ProjectPath;
/**
* @author Andrei Adamchik
*/
public class CreateNodeAction extends CayenneAction {
public static String getActionName() {
return "Create DataNode";
}
/**
* Constructor for CreateNodeAction.
*
* @param name
*/
public CreateNodeAction(Application application) {
super(getActionName(), application);
}
public String getIconName() {
return "icon-node.gif";
}
/**
* @see org.apache.cayenne.modeler.util.CayenneAction#performAction(ActionEvent)
*/
public void performAction(ActionEvent e) {
ProjectController mediator = getProjectController();
DataDomain domain = mediator.getCurrentDataDomain();
// use domain name as DataNode base, as node names must be unique across the
// project...
DataNode node = buildDataNode();
mediator.fireDataNodeEvent(new DataNodeEvent(this, node, MapEvent.ADD));
mediator.fireDataNodeDisplayEvent(new DataNodeDisplayEvent(this, domain, node));
}
/**
* Creates a new DataNode, adding to the current domain, but doesn't send any events.
*/
protected DataNode buildDataNode() {
ProjectController mediator = getProjectController();
DataDomain domain = mediator.getCurrentDataDomain();
// use domain name as DataNode base, as node names must be unique across the
// project...
DataNode node = createDataNode(domain);
ProjectDataSource src = new ProjectDataSource(new DataSourceInfo());
node.setDataSource(src);
node.setAdapter(new ModelerDbAdapter(src));
// by default create JDBC Node
node.setDataSourceFactory(DriverDataSourceFactory.class.getName());
domain.addNode(node);
return node;
}
/**
* A factory method that makes a new DataNode.
*/
protected DataNode createDataNode(DataDomain domain) {
String name = NamedObjectFactory.createName(DataNode.class, domain, domain
.getName()
+ "Node");
// ensure that DataNode exposes DataSource directly, so that UI widgets could work
// with it.
return new DataNode(name) {
public DataSource getDataSource() {
return dataSource;
}
};
}
/**
* 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;
}
}