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package pipe.dataLayer;
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import java.io.IOException;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import javax.xml.transform.Transformer;
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import javax.xml.transform.TransformerException;
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import javax.xml.transform.TransformerFactory;
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import javax.xml.transform.stream.StreamResult;
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import javax.xml.transform.stream.StreamSource;
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import org.w3c.dom.Document;
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import org.xml.sax.SAXException;
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* Create pnmlTransformer object, which deals with getting information from the
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* XML file, then passes this back to DataLayer constructor for construction
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* @author Ben Kirby, 10 Feb 2007
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public class PNMLTransformer {
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/** Create a Transformer*/
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public PNMLTransformer() {
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* Transform a PNML file into a Document which is returned and used to
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* construct the DataLayer
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* @returns Document from which DataLayer can be built
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* @param filename URI location of PNML
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* @throws SAXException
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* @throws TransformerException
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* @throws ParserConfigurationException
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public Document transformPNML(String filename) {
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// System.out.println("========================================================");
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// System.out.println("dataLayer Loading filename=\"" + filename + "\"");
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// System.out.println("========================================================");
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File outputObjectArrayList = null;
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Document document = null;
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// Create Transformer with XSL Source File
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StreamSource xsltSource = new StreamSource(
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Thread.currentThread().getContextClassLoader().getResourceAsStream(
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"resources/xslt" + System.getProperty("file.separator")
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+ "GenerateObjectList.xsl"));
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Transformer transformer = TransformerFactory.newInstance().newTransformer(xsltSource);
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// TRY TO DO ALL IN MEMORT TO REDUCE READ-WRITE DELAYS
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// Output for XSLT Transformation
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outputObjectArrayList = new File(System.getProperty("java.io.tmpdir") +
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System.getProperty("file.separator") + "ObjectList.xml");
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outputObjectArrayList.deleteOnExit();
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StreamSource source = new StreamSource(filename);
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StreamResult result = new StreamResult(outputObjectArrayList);
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transformer.transform(source, result);
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// Get DOM for transformed document
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document = getDOM(outputObjectArrayList);
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} catch (IOException e) {
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System.out.println("IOException thrown in loadPNML(String filename)" +
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" : dataLayer Class : dataLayer Package");
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e.printStackTrace(System.err);
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} catch (SAXException e) {
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System.out.println("SAXException thrown in loadPNML(String filename)" +
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" : dataLayer Class : dataLayer Package");
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e.printStackTrace(System.err);
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} catch (TransformerException e) {
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System.out.println("TransformerException thrown in " +
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"loadPNML(String filename) : dataLayer Class : dataLayer Package");
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e.printStackTrace(System.err);
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} catch (ParserConfigurationException e) {
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System.out.println("ParserConfigurationException thrown in " +
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"loadPNML(String filename) : dataLayer Class : dataLayer Package");
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e.printStackTrace(System.err);
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// Delete transformed file
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if (outputObjectArrayList != null) {
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outputObjectArrayList.delete();
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//BK - surely I want to make everything exact?? - ignore below in favour of catches above
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// Maxim - make it throw out any exception it gets to the caller. Debugging message left in for now.
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//} catch (Exception e) {
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// throw new RuntimeException(e);
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* Return a DOM for the PNML file at URI pnmlFileName
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* @param pnmlFileName URI of PNML file
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* @return A DOM for the PNML file pnmlFileName
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* @throws ParserConfigurationException
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* @throws IOException
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* @throws SAXException
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public Document getDOM(String pnmlFileName)
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throws ParserConfigurationException, IOException, SAXException{
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Document document = null;
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DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
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documentBuilderFactory.setIgnoringElementContentWhitespace(true);
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// POSSIBLY ADD VALIDATING
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// documentBuilderFactory.setValidating(true);
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DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
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document = documentBuilder.parse(pnmlFileName);
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} catch (ParserConfigurationException e) {
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System.err.println("javax.xml.parsers.ParserConfigurationException " +
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"thrown in getDom(String pnmlFileName) : dataLayer Class : " +
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"dataLayer Package");
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} catch (IOException e) {
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System.err.println("ERROR: File may not be present or have the" +
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" correct attributes");
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System.err.println("java.io.IOException thrown in " +
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"getDom(String pnmlFileName) : dataLayer Class : dataLayer Package");
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} catch (SAXException e) {
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System.err.println("org.xml.sax.SAXException thrown in " +
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"getDom(String pnmlFileName) : dataLayer Class : dataLayer Package");
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* Return a DOM for the PNML File pnmlFile
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* @param pnmlFile File Object for PNML of Petri-Net
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* @return A DOM for the File Object for PNML of Petri-Net
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* @throws ParserConfigurationException
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* @throws IOException
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* @throws SAXException
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public Document getDOM(File pnmlFile)
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throws ParserConfigurationException, IOException, SAXException{
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Document document = null;
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DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
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documentBuilderFactory.setIgnoringElementContentWhitespace(true);
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// POSSIBLY ADD VALIDATING
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// documentBuilderFactory.setValidating(true);
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DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
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document = documentBuilder.parse(pnmlFile);
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} catch (ParserConfigurationException e) {
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System.err.println("javax.xml.parsers.ParserConfigurationException thrown in getDom(String pnmlFileName) : dataLayer Class : dataLayer Package");
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} catch (IOException e) {
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System.err.println("ERROR: File may not be present or have the correct attributes");
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System.err.println("java.io.IOException thrown in getDom(String pnmlFileName) : dataLayer Class : dataLayer Package" + e);
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} catch (SAXException e) {
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System.err.println("org.xml.sax.SAXException thrown in getDom(String pnmlFileName) : dataLayer Class : dataLayer Package" + e);
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System.err.println("Workaround: delete the xmlns attribute from the PNML root node. Probably not ideal, to be fixed when time allows.");
added
removed
src/pipe/dataLayer/PNMLTransformer.java
