/*
Copyright 2008-2010 Gephi
Authors : Mathieu Bastian <mathieu.bastian@gephi.org>
Website : http://www.gephi.org
This file is part of Gephi.
Gephi is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
Gephi 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with Gephi. If not, see <http://www.gnu.org/licenses/>.
*/
package org.gephi.filters.plugin.graph;
import javax.swing.Icon;
import javax.swing.JPanel;
import org.gephi.data.attributes.api.AttributeColumn;
import org.gephi.data.attributes.api.AttributeController;
import org.gephi.data.attributes.api.AttributeModel;
import org.gephi.filters.api.FilterLibrary;
import org.gephi.filters.spi.Category;
import org.gephi.filters.spi.Filter;
import org.gephi.filters.spi.FilterBuilder;
import org.gephi.filters.spi.FilterProperty;
import org.gephi.filters.spi.NodeFilter;
import org.gephi.graph.api.Graph;
import org.gephi.graph.api.HierarchicalUndirectedGraph;
import org.gephi.graph.api.Node;
import org.gephi.graph.api.UndirectedGraph;
import org.gephi.statistics.plugin.ConnectedComponents;
import org.openide.util.Lookup;
import org.openide.util.NbBundle;
import org.openide.util.lookup.ServiceProvider;
/**
*
* @author Mathieu Bastian
*/
@ServiceProvider(service = FilterBuilder.class)
public class GiantComponentBuilder implements FilterBuilder {
public Category getCategory() {
return FilterLibrary.TOPOLOGY;
}
public String getName() {
return NbBundle.getMessage(GiantComponentBuilder.class, "GiantComponentBuilder.name");
}
public Icon getIcon() {
return null;
}
public String getDescription() {
return NbBundle.getMessage(GiantComponentBuilder.class, "GiantComponentBuilder.description");
}
public Filter getFilter() {
return new GiantComponentFilter();
}
public JPanel getPanel(Filter filter) {
return null;
}
public void destroy(Filter filter) {
}
public static class GiantComponentFilter implements NodeFilter {
private AttributeModel attributeModel;
private int componentId;
private AttributeColumn column;
public GiantComponentFilter() {
attributeModel = Lookup.getDefault().lookup(AttributeController.class).getModel();
}
public boolean init(Graph graph) {
ConnectedComponents cc = new ConnectedComponents();
HierarchicalUndirectedGraph undirectedGraph = null;
if (cc instanceof UndirectedGraph) {
undirectedGraph = (HierarchicalUndirectedGraph) graph;
} else {
undirectedGraph = graph.getView().getGraphModel().getHierarchicalUndirectedGraph(graph.getView());
}
cc.weaklyConnected(undirectedGraph, attributeModel);
componentId = cc.getGiantComponent();
column = attributeModel.getNodeTable().getColumn(ConnectedComponents.WEAKLY);
return column != null && componentId != -1;
}
public boolean evaluate(Graph graph, Node node) {
Integer component = (Integer) node.getNodeData().getAttributes().getValue(column.getIndex());
if (component != null) {
return component.equals(componentId);
}
return false;
}
public void finish() {
}
public String getName() {
return NbBundle.getMessage(GiantComponentBuilder.class, "GiantComponentBuilder.name");
}
public FilterProperty[] getProperties() {
return new FilterProperty[0];
}
}
}