package org.jboss.windup.reporting.renderer.dot;
import static org.joox.JOOX.$;
import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Path;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.apache.commons.io.IOUtils;
import org.jboss.windup.reporting.renderer.GraphWriter;
import org.jboss.windup.reporting.renderer.dot.DotConstants.DotGraphType;
import org.jboss.windup.util.Logging;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
import com.tinkerpop.blueprints.Graph;
public class VizJSHtmlWriter implements GraphWriter
{
private static Logger LOG = Logging.get(VizJSHtmlWriter.class);
private final DotWriter writer;
public VizJSHtmlWriter(Graph graph)
{
this.writer = new DotWriter(graph, "G", "qualifiedName", "", DotGraphType.DIGRAPH, "8pt");
}
public VizJSHtmlWriter(Graph graph, String vertexLabelProperty, String edgeLabel)
{
this.writer = new DotWriter(graph, "G", vertexLabelProperty, edgeLabel, DotGraphType.DIGRAPH, "8pt");
}
public void writeGraph(final Path outputDirectory) throws IOException
{
// copy vis.js to the output folder
try (InputStream is = this.getClass().getClassLoader().getResourceAsStream("vizjs/viz.js"))
{
try (OutputStream outputStream = new FileOutputStream(outputDirectory.resolve("viz.js").toFile()))
{
IOUtils.copy(is, outputStream);
}
}
// read in the html template resource.
try (InputStream is = this.getClass().getClassLoader().getResourceAsStream("vizjs/HtmlTemplate.html"))
{
Path indexHTML = outputDirectory.resolve("index.html");
try (OutputStream os = new FileOutputStream(indexHTML.toFile()))
{
String result;
{
ByteArrayOutputStream baos = new ByteArrayOutputStream();
writer.writeGraph(baos);
result = baos.toString();
}
if (LOG.isLoggable(Level.FINE))
LOG.fine("DOT: " + result);
// read the document.
Document document;
try {
document = $(is).document();
// append in the gexf.
$(document).find("#dot-source").append(result);
writeDocument(document, os);
} catch (SAXException e) {
throw new IOException("Exception loading document.", e);
}
}
}
}
public void writeDocument(final Document document, final OutputStream os) throws IOException
{
try
{
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(document);
StreamResult result = new StreamResult(os);
transformer.transform(source, result);
}
catch (TransformerException e)
{
throw new IOException("Exception writing to output stream.", e);
}
}
}