--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/software/mpdl-services/mpiwg-mpdl-cms/src/de/mpg/mpiwg/berlin/mpdl/cms/transform/PageTransformer.java	Tue Nov 27 12:35:19 2012 +0100
@@ -0,0 +1,118 @@
+package de.mpg.mpiwg.berlin.mpdl.cms.transform;
+
+import java.io.IOException;
+import java.io.StringReader;
+import java.io.StringWriter;
+import java.net.URL;
+
+import javax.xml.transform.stream.StreamSource;
+
+import de.mpg.mpiwg.berlin.mpdl.cms.document.MetadataRecord;
+import de.mpg.mpiwg.berlin.mpdl.exception.ApplicationException;
+
+import net.sf.saxon.s9api.Processor;
+import net.sf.saxon.s9api.QName;
+import net.sf.saxon.s9api.SaxonApiException;
+import net.sf.saxon.s9api.Serializer;
+import net.sf.saxon.s9api.XdmAtomicValue;
+import net.sf.saxon.s9api.XdmValue;
+import net.sf.saxon.s9api.XsltCompiler;
+import net.sf.saxon.s9api.XsltExecutable;
+import net.sf.saxon.s9api.XsltTransformer;
+
+public class PageTransformer {
+  private int counter = 0;
+  private Processor processor;
+  private XsltCompiler xsltCompiler;
+  private XsltTransformer pageTeiTransformer;
+  private XsltTransformer pageEchoTransformer;
+  private XsltTransformer pageArchimedesTransformer;
+  private XsltTransformer pageXhtmlTransformer;
+  private XsltTransformer pageXmlTransformer;
+  
+  public PageTransformer() throws ApplicationException {
+    init();
+  }
+  
+  private void init() throws ApplicationException {
+    try {
+      processor = new Processor(false); 
+      xsltCompiler = processor.newXsltCompiler();
+      URL getFragmentXslUrl = PageTransformer.class.getResource("pageTei.xsl");
+      StreamSource xslStreamSource = new StreamSource(getFragmentXslUrl.openStream());
+      XsltExecutable xsltExecutable = xsltCompiler.compile(xslStreamSource);
+      pageTeiTransformer = xsltExecutable.load();
+      getFragmentXslUrl = PageTransformer.class.getResource("pageEcho.xsl");
+      xslStreamSource = new StreamSource(getFragmentXslUrl.openStream());
+      xsltExecutable = xsltCompiler.compile(xslStreamSource);
+      pageEchoTransformer = xsltExecutable.load();
+      getFragmentXslUrl = PageTransformer.class.getResource("pageArchimedes.xsl");
+      xslStreamSource = new StreamSource(getFragmentXslUrl.openStream());
+      xsltExecutable = xsltCompiler.compile(xslStreamSource);
+      pageArchimedesTransformer = xsltExecutable.load();
+      getFragmentXslUrl = PageTransformer.class.getResource("pageXhtml.xsl");
+      xslStreamSource = new StreamSource(getFragmentXslUrl.openStream());
+      xsltExecutable = xsltCompiler.compile(xslStreamSource);
+      pageXhtmlTransformer = xsltExecutable.load();
+      getFragmentXslUrl = PageTransformer.class.getResource("pageXml.xsl");
+      xslStreamSource = new StreamSource(getFragmentXslUrl.openStream());
+      xsltExecutable = xsltCompiler.compile(xslStreamSource);
+      pageXmlTransformer = xsltExecutable.load();
+    } catch (SaxonApiException e) {
+      throw new ApplicationException(e);
+    } catch (IOException e) {
+      throw new ApplicationException(e);
+    }
+  }
+  
+  public String transform(String inputStr, MetadataRecord mdRecord, int page, String outputFormat) throws ApplicationException {
+    String pageFragment = null;
+    String schemaName = mdRecord.getSchemaName();
+    if (schemaName != null)
+      schemaName = schemaName.toLowerCase();
+    try {
+      XsltTransformer transformer = null;
+      if (schemaName != null && schemaName.equals("tei") && outputFormat.equals("html"))
+        transformer = pageTeiTransformer;
+      else if (schemaName != null && schemaName.equals("echo") && outputFormat.equals("html"))
+        transformer = pageEchoTransformer;
+      else if (schemaName != null && schemaName.equals("archimedes") && outputFormat.equals("html"))
+        transformer = pageArchimedesTransformer;
+      else if (schemaName != null && (schemaName.equals("html") || schemaName.equals("xhtml")) && outputFormat.equals("html"))
+        transformer = pageXhtmlTransformer;
+      else if (outputFormat.equals("xmlDisplay"))
+        transformer = pageXmlTransformer;
+      else
+        transformer = pageTeiTransformer;
+      StringReader inputStrReader = new StringReader(inputStr);
+      StreamSource xmlDoc = new StreamSource(inputStrReader);
+      Serializer serializer = new Serializer();
+      serializer.setOutputWriter(new StringWriter());
+      serializer.setOutputProperty(Serializer.Property.SAXON_STYLESHEET_VERSION, "2.0");
+      serializer.setOutputProperty(Serializer.Property.METHOD, "xml");
+      serializer.setOutputProperty(Serializer.Property.MEDIA_TYPE, "text/html");
+      serializer.setOutputProperty(Serializer.Property.INDENT, "no");
+      serializer.setOutputProperty(Serializer.Property.OMIT_XML_DECLARATION, "yes");
+      serializer.setOutputProperty(Serializer.Property.ENCODING, "utf-8");
+      transformer.setSource(xmlDoc);  
+      transformer.setDestination(serializer);
+      String echoFiguresDir = mdRecord.getEchoFiguresDir();
+      QName echoFiguresDirQName = new QName("echoFiguresDir");
+      XdmValue echoFiguresDirXdmValue = new XdmAtomicValue(echoFiguresDir);
+      transformer.setParameter(echoFiguresDirQName, echoFiguresDirXdmValue);
+      String echoPageImgDir = mdRecord.getEchoPageImageDir();
+      QName echoPageImgDirQName = new QName("echoPageImgDir");
+      XdmValue echoPageImgDirXdmValue = new XdmAtomicValue(echoPageImgDir);
+      transformer.setParameter(echoPageImgDirQName, echoPageImgDirXdmValue);
+      transformer.transform(); 
+      pageFragment = serializer.getOutputDestination().toString();
+    } catch (Exception e) {
+      throw new ApplicationException(e);
+    }
+    counter++;
+    if (counter == 100)
+      init();
+    return pageFragment;
+  }
+
+}