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 *  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 *  This code is free software; you can redistribute it and/or modify it
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 *  published by the Free Software Foundation.  Oracle designates this
 *  particular file as subject to the "Classpath" exception as provided
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 * 
 *  This code 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
 *  version 2 for more details (a copy is included in the LICENSE file that
 *  accompanied this code).
 * 
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package org.visualvm.samples.filtersortsample;

import com.sun.tools.visualvm.core.datasource.DataSource;
import com.sun.tools.visualvm.core.datasource.descriptor.DataSourceDescriptor;
import com.sun.tools.visualvm.core.datasource.descriptor.DataSourceDescriptorFactory;
import com.sun.tools.visualvm.core.datasupport.Positionable;
import com.sun.tools.visualvm.core.model.AbstractModelProvider;
import java.awt.Image;
import org.openide.util.Utilities;

/**
 * 
 * @author Jiri Sedlacek
 */
public class FilterSortNode extends DataSource {
    
    private static FilterSortDescriptorProvider descriptorProvider;
    
    
    private FilterSortNode() {}
    
    
    static synchronized void initialize() {
        if (descriptorProvider != null) return;
        descriptorProvider = new FilterSortDescriptorProvider();
        DataSourceDescriptorFactory.getDefault().registerProvider(descriptorProvider);
        for (int i = 0; i < 10; i++)
            FilterSortRootNode.sharedInstance().getRepository().addDataSource(new FilterSortNode());
    }
    
    static synchronized void uninitialize() {
        if (descriptorProvider == null) return;
        FilterSortRootNode.sharedInstance().getRepository().removeDataSources(
                FilterSortRootNode.sharedInstance().getRepository().getDataSources());
        DataSourceDescriptorFactory.getDefault().unregisterProvider(descriptorProvider);
        descriptorProvider = null;
    }
    
    
    static class FilterSortDescriptorProvider extends AbstractModelProvider<DataSourceDescriptor, DataSource> {
    
        public DataSourceDescriptor createModelFor(DataSource ds) {
            if (ds instanceof FilterSortNode) return new FilterSortDescriptor((FilterSortNode)ds);
            else return null;
        }

        static class FilterSortDescriptor extends DataSourceDescriptor {
            private static final Image NODE_ICON =
                    Utilities.loadImage("com/sun/tools/visualvm/core/ui/resources/busy-icon5.png", true);  // NOI18N

            FilterSortDescriptor(FilterSortNode node) {
                super(node, "FilterSortDemo @" + node.hashCode(), null, NODE_ICON,
                        Positionable.POSITION_LAST, EXPAND_ON_EACH_NEW_CHILD); // NOI18N
            }
            
            void changePreferredPosition(int position) {
                setPreferredPosition(position);
            }

        }

    }
    
}
