/*
 *                 Sun Public License Notice
 *
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 *
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2000 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

/*
 * MFolderNode.java
 *
 * Created on May 14, 2003, 2:57 PM
 */

package org.netbeans.modules.j2ee.deployment.impl.ui;

import org.openide.ErrorManager;
import org.openide.nodes.*;

import javax.management.ObjectName;
import javax.management.j2ee.Management;
import javax.management.NotificationListener;
import org.netbeans.modules.j2ee.deployment.impl.ServerTarget;

/**
 *
 * @author  nn136682
 */
public class MFolderNode extends org.openide.nodes.AbstractNode {

    static private final String ICON = "org/netbeans/modules/j2ee/deployment/impl/ui/resources/mfolder";//NOI18N
    private ObjectName[] queries;
    ServerTarget target;
    
    /** Creates a new instance of MFolderNode */
    public MFolderNode(ServerTarget target, ObjectName[] queries, String name) {
        super(new MFolderChildren(target, queries));
        this.target = target; 
        setDisplayName(name);
        setIconBase(ICON);
        this.queries = queries;
    }
    
    public void refresh(Management management) {
        //((MFolderChildren)getChildren()).refreshNodes();
        setChildren(new MFolderChildren(target, queries));
    }
    
    private static class MFolderChildren extends Children.Keys {
        private ServerTarget target;
        private ObjectName[] queries;
        
        MFolderChildren(ServerTarget target, ObjectName[] queries) {
            this.target = target;
            this.queries = queries;
        }
        public void refreshNodes() {
            if (target.getInstance().isRunning())
                setKeys(queries);
            else
                setKeys(java.util.Collections.EMPTY_SET);
        }
        protected void addNotify() {
            if (target.getInstance().isRunning())
                setKeys(queries);
            else
                setKeys(java.util.Collections.EMPTY_SET);
        }
        protected void removeNotify() {
            setKeys(java.util.Collections.EMPTY_SET);
        }
        protected Node[] createNodes(Object key) {
            Management management = target.getManagement();
            if (management == null)
                return new Node[0];
            
            java.util.List children = new java.util.ArrayList();
            try {
                java.util.Set childSet = management.queryNames((ObjectName)key, null);
                if (childSet != null)
                    children.addAll(childSet);
            } catch(Exception e) {
                ErrorManager.getDefault().notify(ErrorManager.WARNING, e);
            }
            ManagementNode[] nodes = new ManagementNode[children.size()];
            for (int i=0; i