greenrd 00/12/01 10:00:14
Modified: src/org/apache/cocoon/formatter FO2PDFFormatter.java
Log:
dirty hack to make Xalan 1.x work with FOP 0.14 and higher - you now need FOP
0.14 or higher to build cocoon but not to run it
Revision Changes Path
1.5 +80 -11
xml-cocoon/src/org/apache/cocoon/formatter/FO2PDFFormatter.java
Index: FO2PDFFormatter.java
===================================================================
RCS file:
/home/cvs/xml-cocoon/src/org/apache/cocoon/formatter/FO2PDFFormatter.java,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -r1.4 -r1.5
--- FO2PDFFormatter.java 2000/08/18 22:42:27 1.4
+++ FO2PDFFormatter.java 2000/12/01 18:00:13 1.5
@@ -1,4 +1,4 @@
-/*-- $Id: FO2PDFFormatter.java,v 1.4 2000/08/18 22:42:27 stefano Exp $ --
+/*-- $Id: FO2PDFFormatter.java,v 1.5 2000/12/01 18:00:13 greenrd Exp $ --
============================================================================
The Apache Software License, Version 1.1
@@ -53,37 +53,106 @@
import java.io.*;
import java.util.*;
import org.w3c.dom.*;
-import org.apache.fop.apps.*;
+import org.xml.sax.InputSource;
+import org.apache.fop.apps.Driver;
import org.apache.cocoon.framework.*;
+import org.apache.cocoon.parser.Parser;
+import org.apache.xerces.parsers.SAXParser;
/**
* This class wraps around FOP to perform XSL:FO to PDF formatting.
*
* @author <a href="mailto:[EMAIL PROTECTED]">Stefano Mazzocchi</a>
- * @version $Revision: 1.4 $ $Date: 2000/08/18 22:42:27 $
+ * @version $Revision: 1.5 $ $Date: 2000/12/01 18:00:13 $
*/
-public class FO2PDFFormatter extends AbstractFormatter {
+public class FO2PDFFormatter extends AbstractFormatter implements Actor {
+
+
+ /*
+ * If FOP version >= 0.14 we may need to reparse the result to enforce
the namespace
+ * compliance that FOP now requires but Xalan does not provide. (This
only affects
+ * FO documents that have been styled by a stylesheet but for
simplicitly we apply
+ * it to all incoming documents if the FOP version is >= 0.14.
+ */
+ private static final String FOP_VERSION =
org.apache.fop.apps.Version.getVersion ();
+ private static final Hashtable NO_PARAMETERS = new Hashtable ();
+ private static final double UNKNOWN_VERSION = -1.0;
+ private static double FOP_VERSION_NO;
+ static {
+ try {
+ // This is a real mess! Why couldn't they just do a
getVersionNumber() method!?
+ int i = FOP_VERSION.indexOf (' ', 4);
+ if (i == -1) i = FOP_VERSION.length ();
+ String vn = FOP_VERSION.substring (4, i).replace ('_', '.');
+ // only interested in first dot, if any
+ i = vn.indexOf ('.');
+ if (i != -1) i = vn.indexOf ('.', i + 1);
+ if (i != -1) vn = vn.substring (0, i);
+ FOP_VERSION_NO = Double.parseDouble (vn);
+ }
+ catch (Exception ex) {
+ FOP_VERSION_NO = UNKNOWN_VERSION;
+ }
+ System.err.println ("FOP_VERSION = " + FOP_VERSION);
+ System.err.println ("FOP_VERSION_NO = " + FOP_VERSION_NO);
+ }
+
+ protected Director director;
+ protected Formatter xmlFormatter;
+ protected Parser parser;
public FO2PDFFormatter() {
super.MIMEtype = "application/pdf";
- super.statusMessage = Version.getVersion() + " formatter";
+ super.statusMessage = FOP_VERSION + " formatter (note: version
number is often wildly inaccurate)";
}
public void init(Configurations conf) {
super.init(conf);
}
+ public void init(Director director) {
+ // other components might not have been setup yet, so defer this
+ this.director = director;
+ }
+
+ protected void deferredInit () throws Exception {
+ if (xmlFormatter == null) { // don't bother initting multiple times
+ FormatterFactory formatters = (FormatterFactory)
director.getActor ("formatters");
+ xmlFormatter = formatters.getFormatterForType ("text/xml");
+ parser = (Parser) director.getActor ("parser");
+ }
+ }
+
public void format(Document document, Writer writer, Dictionary
parameters) throws Exception {
Driver driver = new Driver();
- driver.setRenderer("org.apache.fop.render.pdf.PDFRenderer",
Version.getVersion());
+ driver.setRenderer("org.apache.fop.render.pdf.PDFRenderer",
FOP_VERSION);
driver.addElementMapping("org.apache.fop.fo.StandardElementMapping");
driver.addElementMapping("org.apache.fop.svg.SVGElementMapping");
-
//driver.addPropertyList("org.apache.fop.fo.StandardPropertyListMapping");
-
//driver.addPropertyList("org.apache.fop.svg.SVGPropertyListMapping");
- driver.setWriter(new PrintWriter(writer));
- driver.buildFOTree(document);
+ driver.setWriter(new PrintWriter(writer));
+
+ if (FOP_VERSION_NO > 0.13) {
+
driver.addPropertyList("org.apache.fop.fo.StandardPropertyListMapping");
+
driver.addPropertyList("org.apache.fop.svg.SVGPropertyListMapping");
+
+ // To workaround the problem that Xalan 1.x does not output
DOM2-compliant namespaces,
+ // we use a major hack - output xml as a string and read it
in again.
+ // With a DOM2-compliant parser such as Xerces, this should
work fine.
+ deferredInit ();
+ StringWriter tempWriter = new StringWriter ();
+ xmlFormatter.format (document, tempWriter, NO_PARAMETERS);
+ String tempXml = tempWriter.toString ();
+
+ // For now, we just use Xerces - it would be more
complicated to support
+ // other parsers here.
+ SAXParser parser = new SAXParser ();
+ parser.setFeature("http://xml.org/sax/features/namespaces";,
true);
+ driver.buildFOTree(parser, new InputSource (new StringReader
(tempXml)));
+ }
+ else {
+ driver.buildFOTree(document);
+ }
driver.format();
driver.render();
}
-}
\ No newline at end of file
+}
