I have been looking at making a cocoon2 generator and would be
interested in advice or criticism about my strategy.
I have standalone sax2 test programs that implement a 'fake parser'
like michal kay's gedcom parser reading a text file, emitting sax events
written to an xml file that is (possibly) transformed. I am breaking up
a text file into <line><word>.
another, similar parser reads comma delimited files from (for example)
excel.
--------------
Looking at the ../generation sources, I chose the HTML generator as a
model. It, however, uses DOM
and then converts it into SAX events.
The 'PoemtxtParser' emits sax events & I expect to hook it into the
{pipeline?} that is defined in the
sitemap by
<map:generator name="poemtxt"
src="org.apache.cocoon.generation.PoemtxtGenerator" label="content"/>
in the generator section
and
<map:match pattern="poemtxt">
<map:generate type="poemtxt" src="poemtxt/**.txt"/>
<map:transform type="xslt"
src="stylesheets/poemtxt/xpoem-html.xsl"/>
<map:serialize type="html"/>
</map:match>
---------------------------------------
---------------------------------------
The main program of my existing code writes to system.out and I need, I
believe to replace this output source with a connection to the cocoon2
pipeline. Here is the main excerpt:
String poemtxtFileName = args[0];
String xsltFileName = (args.length > 1) ? args[1] : null;
TransformerFactory transFact = TransformerFactory.newInstance();
if (transFact.getFeature(SAXTransformerFactory.FEATURE)) {
SAXTransformerFactory saxTransFact = (SAXTransformerFactory)
transFact;
TransformerHandler transHand = null;
if (xsltFileName == null) {
transHand = saxTransFact.newTransformerHandler();
} else {
transHand = saxTransFact.newTransformerHandler(new
StreamSource(new File(xsltFileName)));
}
// set the desitnation for the xslt transformation
transHand.setResult(new StreamResult(System.out));
//hook the poemtxtParser to the poemtxtFile
PoemtxtParser poemtxtReader = new PoemtxtParser();
InputSource poemtxtInputSrc = new InputSource(new
FileReader(poemtxtFileName));
// attach the XSLT processor to the poemtxtParser
poemtxtReader.setContentHandler(transHand);
poemtxtReader.parse(poemtxtInputSrc);
--------------------------
--------------------------
The PoemtxtParser.parse implements XMLReader and Locator
and emits calls to contentHandler.startDocument and .StartElement (and
so on).
-------------------------
Does this make sense or am I missing something already existing in
Cocoon2 that
would accomplish my goal/
regards
Bob Phillips
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