Introduce DocBook 4 converter.

[gpl/argeo-suite.git] / publishing / org.argeo.publishing.ui / src / org / argeo / docbook / Dbk4Converter.java

diff --git a/publishing/org.argeo.publishing.ui/src/org/argeo/docbook/Dbk4Converter.java b/publishing/org.argeo.publishing.ui/src/org/argeo/docbook/Dbk4Converter.java
new file mode 100644 (file)
index 0000000..916dddd
--- /dev/null
+++ b/publishing/org.argeo.publishing.ui/src/org/argeo/docbook/Dbk4Converter.java
@@ -0,0 +1,100 @@
+package org.argeo.docbook;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+
+import javax.jcr.ImportUUIDBehavior;
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.transform.Result;
+import javax.xml.transform.Source;
+import javax.xml.transform.Templates;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerConfigurationException;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamResult;
+import javax.xml.transform.stream.StreamSource;
+
+import org.apache.xalan.processor.TransformerFactoryImpl;
+import org.argeo.jcr.JcrException;
+import org.w3c.dom.Document;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+
+/** Convert from DocBook v4 to DocBook v5, using the official XSL. */
+public class Dbk4Converter {
+       private final Templates templates;
+
+       public Dbk4Converter() {
+               try (InputStream in = getClass().getResourceAsStream("db4-upgrade.xsl")) {
+                       Source xsl = new StreamSource(in);
+                       TransformerFactory transformerFactory = new TransformerFactoryImpl();
+                       templates = transformerFactory.newTemplates(xsl);
+               } catch (IOException | TransformerConfigurationException e) {
+                       throw new RuntimeException("Cannot initialise DocBook v4 converter", e);
+               }
+       }
+
+       public void importXml(Node baseNode, InputStream in) throws IOException {
+               try (ByteArrayOutputStream out = new ByteArrayOutputStream();) {
+                       DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+                       factory.setXIncludeAware(true);
+                       factory.setNamespaceAware(true);
+                       DocumentBuilder docBuilder = factory.newDocumentBuilder();
+                       Document doc = docBuilder.parse(new InputSource(in));
+                       Source xmlInput = new DOMSource(doc);
+
+//                     ContentHandler contentHandler = baseNode.getSession().getImportContentHandler(baseNode.getPath(),
+//                                     ImportUUIDBehavior.IMPORT_UUID_COLLISION_REPLACE_EXISTING);
+
+                       Transformer transformer = templates.newTransformer();
+                       Result xmlOutput = new StreamResult(out);
+                       transformer.transform(xmlInput, xmlOutput);
+                       try (InputStream dbk5in = new ByteArrayInputStream(out.toByteArray())) {
+                               baseNode.getSession().importXML(baseNode.getPath(), dbk5in,
+                                               ImportUUIDBehavior.IMPORT_UUID_COLLISION_REPLACE_EXISTING);
+                       }
+               } catch (RepositoryException e) {
+                       throw new JcrException("Cannot import XML to " + baseNode, e);
+               } catch (TransformerException | SAXException | ParserConfigurationException e) {
+                       throw new RuntimeException("Cannot import DocBook v4 to " + baseNode, e);
+               }
+
+       }
+
+       public static void main(String[] args) {
+               try {
+
+                       Source xsl = new StreamSource(new File("/usr/share/xml/docbook5/stylesheet/upgrade/db4-upgrade.xsl"));
+                       TransformerFactory transformerFactory = new TransformerFactoryImpl();
+                       Templates templates = transformerFactory.newTemplates(xsl);
+
+                       File inputDir = new File(args[0]);
+                       File outputDir = new File(args[1]);
+
+                       for (File inputFile : inputDir.listFiles()) {
+                               Result xmlOutput = new StreamResult(new File(outputDir, inputFile.getName()));
+
+                               DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+                               factory.setXIncludeAware(true);
+                               factory.setNamespaceAware(true);
+                               DocumentBuilder docBuilder = factory.newDocumentBuilder();
+                               Document doc = docBuilder.parse(inputFile);
+                               Source xmlInput = new DOMSource(doc);
+                               Transformer transformer = templates.newTransformer();
+                               transformer.transform(xmlInput, xmlOutput);
+                       }
+               } catch (Throwable e) {
+                       e.printStackTrace();
+               }
+       }
+
+}