/*
*
* @file ChildLoaderManager.java
*
* Copyright (C) 2006-2009 Tensegrity Software GmbH
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License (Version 2) as published
* by the Free Software Foundation at http://www.gnu.org/copyleft/gpl.html.
*
* 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 General Public License for
* more details.
*
* You should have received a copy of the GNU 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 USA
*
* If you are developing and distributing open source applications under the
* GPL License, then you are free to use JPalo Modules under the GPL License. For OEMs,
* ISVs, and VARs who distribute JPalo Modules with their products, and do not license
* and distribute their source code under the GPL, Tensegrity provides a flexible
* OEM Commercial License.
*
* @author Philipp Bouillon <Philipp.Bouillon@tensegrity-software.com>
*
* @version $Id: ChildLoaderManager.java,v 1.24 2010/02/16 13:53:42 PhilippBouillon Exp $
*
*/
package com.tensegrity.wpalo.server.childloader;
import java.util.ArrayList;
import com.tensegrity.palo.gwt.core.client.exceptions.PaloGwtCoreException;
import com.tensegrity.palo.gwt.core.client.models.XObject;
import com.tensegrity.palo.gwt.core.server.services.UserSession;
import com.tensegrity.wpalo.server.childloader.reportstructure.DatabaseLoader;
import com.tensegrity.wpalo.server.childloader.reportstructure.HierarchyLoader;
import com.tensegrity.wpalo.server.childloader.reportstructure.ReportFolderLoader;
import com.tensegrity.wpalo.server.childloader.reportstructure.ServerLoader;
import com.tensegrity.wpalo.server.childloader.reportstructure.SubsetLoader;
public class ChildLoaderManager {
private static final ChildLoaderManager instance = new ChildLoaderManager();
private ArrayList <ChildLoader> childLoaders;
private final ElementNodeLoader elNodeLoader;
private ChildLoaderManager() {
childLoaders = new ArrayList<ChildLoader>();
// Register all different child loaders:
childLoaders.add(new AccountViewLoader());
childLoaders.add(new FolderChildLoader());
childLoaders.add(new ReportFolderChildLoader());
childLoaders.add(new ServerLoader());
childLoaders.add(new DatabaseLoader());
childLoaders.add(new HierarchyLoader());
childLoaders.add(new SubsetLoader());
childLoaders.add(new NodeChildLoader());
childLoaders.add(new AdminChildLoader());
childLoaders.add(new ReportFolderLoader());
childLoaders.add(new AccountConnectionChildLoader());
childLoaders.add(new ModellerChildLoader());
childLoaders.add(new ApplicationLoader());
childLoaders.add(new ApplicationTemplateLoader());
elNodeLoader = new ElementNodeLoader();
childLoaders.add(elNodeLoader);
// childLoaders.add(new ViewItemLoader());
childLoaders.add(new ViewBrowserTreeLoader());
childLoaders.add(new ViewImporterTreeLoader());
}
public static ChildLoaderManager getInstance() {
return instance;
}
public XObject[] loadChildren(XObject parent, UserSession userSession)
throws PaloGwtCoreException {
try {
if (parent == null) {
return new XObject[0];
}
for (ChildLoader cl : childLoaders) {
if (cl.accepts(parent)) {
XObject [] result =
cl.loadChildren(parent, userSession);
return result;
}
}
return new XObject[0];
} catch (Throwable t) {
throw new PaloGwtCoreException(t.getLocalizedMessage(), t);
}
}
public XObject [] loadChildren(String parentType, String viewId, String axisId, String parentId, UserSession userSession)
throws PaloGwtCoreException {
try {
if (parentId == null || parentType == null) {
return new XObject[0];
}
if (elNodeLoader.accepts(parentType)) {
return elNodeLoader.loadChildren(parentType, viewId, axisId, parentId, userSession);
}
return new XObject[0];
} catch (Throwable t) {
throw new PaloGwtCoreException(t.getLocalizedMessage(), t);
}
}
}