/*******************************************************************************
 * Copyright (c) 2007, 2009 Wind River Systems and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Wind River Systems - initial API and implementation
 *     Ericsson AB		  - Modules view for DSF implementation
 *******************************************************************************/
package org.eclipse.cdt.dsf.debug.ui.viewmodel.modules;

import java.util.concurrent.RejectedExecutionException;

import org.eclipse.cdt.dsf.concurrent.DsfRunnable;
import org.eclipse.cdt.dsf.debug.service.ICachingService;
import org.eclipse.cdt.dsf.debug.service.IModules;
import org.eclipse.cdt.dsf.internal.ui.DsfUIPlugin;
import org.eclipse.cdt.dsf.service.DsfServicesTracker;
import org.eclipse.cdt.dsf.service.DsfSession;
import org.eclipse.cdt.dsf.ui.viewmodel.AbstractVMAdapter;
import org.eclipse.cdt.dsf.ui.viewmodel.IRootVMNode;
import org.eclipse.cdt.dsf.ui.viewmodel.IVMNode;
import org.eclipse.cdt.dsf.ui.viewmodel.datamodel.AbstractDMVMProvider;
import org.eclipse.cdt.dsf.ui.viewmodel.datamodel.RootDMVMNode;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext;

/**
 * @since 1.0
 */
public class ModulesVMProvider extends AbstractDMVMProvider {
    /*
     *  Current default for register formatting.
     */
    public ModulesVMProvider(AbstractVMAdapter adapter, IPresentationContext context, DsfSession session) {
        super(adapter, context, session);
        
        /*
         *  Create the top level node to deal with the root selection.
         */
        IRootVMNode rootNode = new RootDMVMNode(this);
        
        /*
         *  Create the Group nodes next. They represent the first level shown in the view.
         */
        IVMNode modulesNode = new ModulesVMNode(this, getSession());
        addChildNodes(rootNode, new IVMNode[] { modulesNode });
        
        /*
         *  Now set this schema set as the layout set.
         */
        setRootNode(rootNode);
    }
    
    @Override
    public void refresh() {
        super.refresh();
        try {
            getSession().getExecutor().execute(new DsfRunnable() {
                public void run() {
                    DsfServicesTracker tracker = new DsfServicesTracker(DsfUIPlugin.getBundleContext(), getSession().getId());
                    IModules modulesService = tracker.getService(IModules.class);
                    if (modulesService instanceof ICachingService) {
                        ((ICachingService)modulesService).flushCache(null);
                    }
                    tracker.dispose();
                }
            });
        } catch (RejectedExecutionException e) {
            // Session disposed, ignore.
        }
    }
}