Re: Parsing HTML: msg#00090 java.enhydra.xmlc

On Thursday, Mar 27, 2003, at 02:53 Asia/Shanghai, Ben Sinclair wrote:

Actually, now that I think about it further, this doesn't really work for me. I have one servlet that can be used by multiple "sponsors." Each time you pass a different referrer ID to the servlet, it loads a different header and footer, so I couldn't recompile each time.

You don't need to compile every time. Let's assume that you have the following layout for HTML:

/Master.html
/sponsor1/Header.html
/sponsro1/Footer.html
/sponsor2/Header.html
/sponsor2/Footer.html

Assuming the Header section is tagged with ID 'Header' in Master.html and all Header.html and Footer is tagged with ID 'Footer'.

In your codes:

String sponsorid = request.getParameter("sponsor");
Document master = xmlcContext.loadFile("Master.html");
Document header = xmlcContext.loadFile("/" + sponsorid + "/Header.html");
Document footer = xmlcContext.loadFile("/" + sponsorid + "/Footer.html");

Element headerElm = header.getElementById("Header");
Element footerElm = footer.getElementById("Footer");

Element hElm = master.importNode(headerElm, true);
Element fElm master.importNode(footerElm, true);

mater.getElementById("Header").getParentNode().replaceChild(hElm, mater.getElementById("Header"));
mater.getElementById("Footer").getParentNode().replaceChild(fElm, mater.getElementById("Footer"));

In this codes, the parsing only took place when the document is first loaded and after each change to the html. Otherwise, the Document is retrieved from the Factory's cache.

By the way, the Header/Footer html has to be full HTML with <html>/<header>/<body> but it shouldn't be a problem.

David

The way I'm doing it now works just fine for the browsers I've tested, even though the HTML wouldn't pass a validator. The only problem with my method is that it tends to chop off the last part of my footer file when I load it like this:

String footer = readFile(footerFile);
Node footerNode = html.getElementById("footer");
if (footerNode != null) {
((LazyText) footerNode.getFirstChild()).setPreFormattedText(footer);
}

If I output the footer string right after I read it, I can see that it's all there. When viewing the source after the page is generated, it has chopped off part of it.

At 12:30 PM 3/26/2003, you wrote:

On Wednesday 26 March 2003 18:33, Ben Sinclair wrote:
> Is there good documentation on how to do [ automatic reloading
> of *ML pages ]?

Sorry, there's not much documentation at the site yet, I didn't get around to
document the new features. Maybe you want to write a howto based on your
experiences?

--
Ben Sinclair
ben@xxxxxxxxxxxxxxx
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