DhnsTestSerializer.java

/*
Copyright 2008-2010 Gephi
Authors : Mathieu Bastian <mathieu.bastian@gephi.org>
Website : http://www.gephi.org

This file is part of Gephi.

DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

Copyright 2011 Gephi Consortium. All rights reserved.

The contents of this file are subject to the terms of either the GNU
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Development and Distribution License("CDDL") (collectively, the
"License"). You may not use this file except in compliance with the
License. You can obtain a copy of the License at
http://gephi.org/about/legal/license-notice/
or /cddl-1.0.txt and /gpl-3.0.txt. See the License for the
specific language governing permissions and limitations under the
License.  When distributing the software, include this License Header
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/cddl-1.0.txt and /gpl-3.0.txt. If applicable, add the following below the
License Header, with the fields enclosed by brackets [] replaced by
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If you wish your version of this file to be governed by only the CDDL
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"[Contributor] elects to include this software in this distribution
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 */
package org.gephi.graph.dhns.core;

import javax.xml.stream.Location;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLReporter;
import java.io.StringReader;
import javax.xml.stream.XMLOutputFactory;
import java.io.StringWriter;
import java.util.HashMap;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.gephi.data.attributes.api.AttributeController;
import org.gephi.graph.api.Node;
import org.gephi.graph.dhns.DhnsGraphController;
import org.gephi.graph.dhns.edge.AbstractEdge;
import org.gephi.graph.dhns.graph.HierarchicalDirectedGraphImpl;
import org.gephi.graph.dhns.node.AbstractNode;
import org.gephi.graph.dhns.utils.DHNSSerializer;
import org.gephi.project.api.ProjectController;
import org.gephi.project.api.Workspace;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.openide.util.Exceptions;
import org.openide.util.Lookup;
import static org.junit.Assert.*;

/**
 *
 * @author Mathieu Bastian
 */
public class DhnsTestSerializer {

    private Dhns dhns1;
    private HierarchicalDirectedGraphImpl graph1;
    private Dhns dhns2;
    private HierarchicalDirectedGraphImpl graph2;
    private HashMap<String, Node> nodeMap2;

    @BeforeClass
    public static void setUpClass() throws Exception {
    }

    @AfterClass
    public static void tearDownClass() throws Exception {
    }

    @Before
    public void setUp() {
        ProjectController pc = Lookup.getDefault().lookup(ProjectController.class);
        pc.newProject();
        Workspace workspace = pc.getCurrentWorkspace();
        Lookup.getDefault().lookup(AttributeController.class).getModel();

        //Graph 1 - Multilevel sample without edges
        DhnsGraphController controller1 = new DhnsGraphController();
        dhns1 = new Dhns(controller1, workspace);
        graph1 = new HierarchicalDirectedGraphImpl(dhns1, dhns1.getGraphStructure().getMainView());
        GraphFactoryImpl factory1 = dhns1.factory();

        AbstractNode nodeA = factory1.newNode();
        AbstractNode nodeB = factory1.newNode();
        AbstractNode nodeC = factory1.newNode();
        AbstractNode nodeD = factory1.newNode();
        AbstractNode nodeE = factory1.newNode();
        graph1.addNode(nodeA);
        graph1.addNode(nodeB);
        graph1.addNode(nodeC, nodeA);
        graph1.addNode(nodeE, nodeB);
        graph1.addNode(nodeD, nodeA);
        graph1.addNode(nodeD, nodeB);

        //Graph2 - Directed sample with edges
        Workspace workspace2 = pc.newWorkspace(pc.getCurrentProject());
        pc.openWorkspace(workspace2);
        Lookup.getDefault().lookup(AttributeController.class).getModel();
        nodeMap2 = new HashMap<String, Node>();
        DhnsGraphController controller2 = new DhnsGraphController();
        dhns2 = new Dhns(controller2, workspace2);
        graph2 = new HierarchicalDirectedGraphImpl(dhns2, dhns2.getGraphStructure().getMainView());
        GraphFactoryImpl factory2 = dhns2.factory();

        for (int i = 0; i < 10; i++) {
            Node node = factory2.newNode();
            node.getNodeData().setLabel("Node " + i);
            graph2.addNode(node);
            nodeMap2.put(node.getNodeData().getLabel(), node);
        }
        Node node4 = nodeMap2.get("Node 4");
        Node node5 = nodeMap2.get("Node 5");
        Node node6 = nodeMap2.get("Node 6");
        Node node7 = nodeMap2.get("Node 7");

        AbstractEdge edge1 = factory2.newEdge(node4, node5);
        AbstractEdge edge2 = factory2.newEdge(node5, node6);
        AbstractEdge edge3 = factory2.newEdge(node6, node5);
        AbstractEdge edge4 = factory2.newEdge(node7, node7);
        AbstractEdge edge5 = factory2.newEdge(node4, node4);
        graph2.addEdge(edge1);
        graph2.addEdge(edge2);
        graph2.addEdge(edge3);
        graph2.addEdge(edge4);
        graph2.addEdge(edge5);
    }

    @After
    public void tearDown() {
        dhns1 = null;
        graph1 = null;
    }

    @Test
    public void testDhnsSerializer() {
        try {
            DHNSSerializer dHNSSerializer = new DHNSSerializer();
            StringWriter stringWriter = new StringWriter();
            dHNSSerializer.writeDhns(createWriter(stringWriter), dhns2);
            String s1 = stringWriter.toString();
            ProjectController pc = Lookup.getDefault().lookup(ProjectController.class);
            Workspace workspace3 = pc.newWorkspace(pc.getCurrentProject());
            pc.openWorkspace(workspace3);
            Lookup.getDefault().lookup(AttributeController.class).getModel();
            Dhns d2 = new Dhns(new DhnsGraphController(), workspace3);
            StringReader stringReader = new StringReader(s1);
            dHNSSerializer.readDhns(createReader(stringReader), d2);
            stringWriter = new StringWriter();
            dHNSSerializer.writeDhns(createWriter(stringWriter), d2);
            String s2 = stringWriter.toString();
            assertEquals(s1, s2);
        } catch (XMLStreamException ex) {
            Exceptions.printStackTrace(ex);
        }
    }

    private XMLStreamWriter createWriter(StringWriter stringWriter) {
        XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
        outputFactory.setProperty("javax.xml.stream.isRepairingNamespaces", Boolean.FALSE);

        try {
            XMLStreamWriter xmlWriter = outputFactory.createXMLStreamWriter(stringWriter);
            xmlWriter.writeStartDocument("UTF-8", "1.0");
            return xmlWriter;
        } catch (XMLStreamException ex) {
            Exceptions.printStackTrace(ex);
        }
        return null;
    }

    private XMLStreamReader createReader(StringReader stringReader) {
        XMLInputFactory inputFactory = XMLInputFactory.newInstance();
        if (inputFactory.isPropertySupported("javax.xml.stream.isValidating")) {
            inputFactory.setProperty("javax.xml.stream.isValidating", Boolean.FALSE);
        }
        inputFactory.setXMLReporter(new XMLReporter() {

            @Override
            public void report(String message, String errorType, Object relatedInformation, Location location) throws XMLStreamException {
                System.out.println("Error:" + errorType + ", message : " + message);
            }
        });
        try {
            return inputFactory.createXMLStreamReader(stringReader);
        } catch (XMLStreamException ex) {
            Exceptions.printStackTrace(ex);
        }
        return null;
    }
}