Subj : Re: Rhino DOM integration.
To   : Bruno Vignola <bvignola@hotmail.com>
From : Igor Bukanov <igor@fastmail.fm>
Date : Thu Jan 08 2004 12:42 pm

Bruno Vignola wrote:
> my Java application embeds rhino for executing js scripts; the
> application gets a XML document, I can parse it, i.e. using the
> Microsoft parser, then I would like to access the document using
> the DOM interfaces inside the rhino environment, e.g. I would
> like write in my JS scripts something like:
> 
> ...
> value = x.childnodes(0).nodeValue etc. etc.
> 

Suppose your have an instance of org.w3c.dom.Document interface, then 
consider a modified version of example/RunScript2.java from Rhino 
distribution :

import org.mozilla.javascript.*;

public class RunScript2 {
     public static void main(String args[])
         throws Exception
     {
	org.w3c.dom.Document
	    document = parseXmlDocumentFromFile(args[0]);
         Context cx = Context.enter();
         try {
             Scriptable scope = cx.initStandardObjects();

             // Add a global variable "out" that is a JavaScript
             // reflection of System.out
             Scriptable jsArgs = Context.toObject(System.out, scope);
             scope.put("out", scope, jsArgs);

	
             // Add a global variable "document" that is a JavaScript
             // reflection of org.w3c.dom.Document
             Scriptable jsArgs = Context.toObject(document, scope);
             scope.put("document", scope, jsArgs);

             String script = args[1];
             Object result = cx.evaluateString(scope, script, "<cmd>", 
1, null);
             System.err.println(cx.toString(result));
         } finally {
             Context.exit();
         }
     }

     org.w3c.dom.Document parseXmlDocumentFromFile(String fileName)
	throws Exception
     {
         // read and parse the given file into W3C document
     }
}

Now run the example with:

java RunScripr2 x.xml 'document.getElementsByTagName("a").length'

where x.xml contains:

<?xml version="1.0" standalone="no"?>
<top>
<a/>
<a/>
<a/>
<a/>
</top>

It should print 4, the number of "a" tags in the document.

Regards, Igor

.