/*
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 java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.swing.Icon;
import javax.swing.JPanel;
import org.gephi.filters.api.FilterLibrary;
import org.gephi.filters.spi.Category;
import org.gephi.filters.spi.ComplexFilter;
import org.gephi.filters.spi.Filter;
import org.gephi.filters.spi.FilterBuilder;
import org.gephi.filters.spi.FilterProperty;
import org.gephi.graph.api.Graph;
import org.gephi.graph.api.HierarchicalGraph;
import org.gephi.graph.api.Node;
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 EgoBuilder implements FilterBuilder {
public Category getCategory() {
return FilterLibrary.TOPOLOGY;
}
public String getName() {
return NbBundle.getMessage(EgoBuilder.class, "EgoBuilder.name");
}
public Icon getIcon() {
return null;
}
public String getDescription() {
return NbBundle.getMessage(EgoBuilder.class, "EgoBuilder.description");
}
public Filter getFilter() {
return new EgoFilter();
}
public JPanel getPanel(Filter filter) {
EgoUI ui = Lookup.getDefault().lookup(EgoUI.class);
if (ui != null) {
return ui.getPanel((EgoFilter) filter);
}
return null;
}
public void destroy(Filter filter) {
}
public static class EgoFilter implements ComplexFilter {
private String pattern = "";
private boolean self = true;
private int depth = 1;
public Graph filter(Graph graph) {
HierarchicalGraph hgraph = (HierarchicalGraph) graph;
String str = pattern.toLowerCase();
List<Node> nodes = new ArrayList<Node>();
for (Node n : hgraph.getNodes()) {
if (n.getNodeData().getId().toLowerCase().equals(str)) {
nodes.add(n);
} else if ((n.getNodeData().getLabel() != null) && n.getNodeData().getLabel().toLowerCase().equals(str)) {
nodes.add(n);
}
}
Set<Node> result = new HashSet<Node>();
Set<Node> neighbours = new HashSet<Node>();
neighbours.addAll(nodes);
for (int i = 0; i < depth; i++) {
Node[] nei = neighbours.toArray(new Node[0]);
neighbours.clear();
for (Node n : nei) {
for (Node neighbor : hgraph.getNeighbors(n)) {
if (!result.contains(neighbor)) {
neighbours.add(neighbor);
result.add(neighbor);
}
}
}
if (neighbours.isEmpty()) {
break;
}
}
if (self) {
result.addAll(nodes);
} else {
result.removeAll(nodes);
}
for (Node node : hgraph.getNodes().toArray()) {
if (!result.contains(node)) {
hgraph.removeNode(node);
}
}
return hgraph;
}
public String getName() {
return NbBundle.getMessage(EgoBuilder.class, "EgoBuilder.name");
}
public FilterProperty[] getProperties() {
try {
return new FilterProperty[]{
FilterProperty.createProperty(this, String.class, "pattern"),
FilterProperty.createProperty(this, Integer.class, "depth"),
FilterProperty.createProperty(this, Boolean.class, "self")};
} catch (NoSuchMethodException ex) {
ex.printStackTrace();
}
return new FilterProperty[0];
}
public String getPattern() {
return pattern;
}
public void setPattern(String pattern) {
this.pattern = pattern;
}
public Integer getDepth() {
return depth;
}
public void setDepth(Integer depth) {
this.depth = depth;
}
public boolean isSelf() {
return self;
}
public void setSelf(boolean self) {
this.self = self;
}
}
}