The freemarker-version is something like this:
The user has created a template using the .fo format with Freemarker, a
(too) simple example could be:
http://tornado.no/template/show?template=global.fop
(Notice the list-directive to iterate over articles in this case, since
it is a CMS).
Then, in the Wicket page I do:
byte[] b = FopUtils.createPDF(aStringWithTheMarkup);
RequestCycle.get().setRequestTarget(new ResourceStreamRequestTarget(
new ByteArrayResourceStream(b, contentType)).setFileName(page.getTitle()
+ ".pdf"));
(contentType is "application/pdf").
The FopUtils class is like this:
public class FopUtils {
private static FopFactory fopFactory = FopFactory.newInstance();
public static byte[] createPDF(String foMarkup) throws IOException,
FOPException, TransformerException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent,
out);
// Setup JAXP using identity transformer
TransformerFactory factory = TransformerFactory.newInstance();
javax.xml.transform.Transformer transformer =
factory.newTransformer(); // identity transformer
// Setup input stream
Source src = new StreamSource(new StringInputStream(foMarkup));
// Resulting SAX events (the generated FO) must be piped through
to FOP
Result res = new SAXResult(fop.getDefaultHandler());
// Start XSLT transformation and FOP processing
transformer.transform(src, res);
// Result processing
FormattingResults foResults = fop.getResults();
out.close();
return out.toByteArray();
}
}
.. and you get a simple PDF served in milliseconds :)
-- Edvin
Ajayi Yinka skrev:
Hi, could you shed more lights on how you achieve this?
Thanks in advance.
Yinka
On Thu, Sep 11, 2008 at 3:56 AM, Edvin Syse <[EMAIL PROTECTED]> wrote:
We use Apache XmlGraphhics/FOP to create PDF successfully in our
Wicket-applications. Some places I use an external XML-datasource and
convert using XSLT, and other times I use Freemarker to generate the .fo
directly. It's extremely fast, and the markup is easy to understand and easy
to change/style.
Actually, in our Wicket-based CMS, the users can change templates so that
the same article can output HTML, RSS/XML or even PDF through Apache FOP :)
-- Edvin
David R Robison skrev:
We use Jasper reports. We took what had been started and made some
modifications and have it working in Wicket. It works well for us. David
Eyal Golan wrote:
reiern70:
Could you please elaborate on how you included BIRT as the part of the
application?
You can mail directly to me if you feel it is out of Wicket's scope.
Thanks
On Tue, Sep 9, 2008 at 2:19 PM, reiern70 <[EMAIL PROTECTED]> wrote:
Hi,
Actually there is no deed to have BIRT in a separated WAR: in our
project
we
have included it as a (singleton) runtime which is part of the
application.
We also have some kind of WEB interface to manage report parameters...
We
found BIRT quite useful for generating reports.... thought we had some
problems when migrating to new versions (sometimes things that were
working
perfectly with one version got terrible unfixed when moving to the
next).
With BIRT you get "for free" the ability to produce Excel, Word, etc...
In our project we went a bit further and built a machinery that allows
to
combine BIRT (and non BIRT) PDF reports into books: BIRT reports are
very
good in summarizing information but you are on your own when you have to
combine them... This "tool" allows you to build a tree like structure (a
book) where the nodes are BIRT reports. The tool will help in
collecting
all the bookmarks into a table of contents, generate combined bookmarks
and
so on...
For simpler use cases I have used iText, JFreeChart, JExcelAPI,
OpenCSV...
Best,
Ernesto
egolan74 wrote:
Hi,
We use BIRT as a report engine.
A freelancer has created the prototype BIRT project, and now we took
over
it.
1. BIRT gives you all your needs.
2. I don't like it very much actually.
3. It is a different project than Wicket. (different WAR)
4. I plan to check how to integrate it to be in the same project / WAR
of
our main web application.
Our integration:
We don't like the way BIRT implemented the parameters window so we
wanted
to
make our own.
We found out that it would be much easier to develop it with Wicket
than
to
customize it in BIRT.
So:
1. We have a page that has an IFrame (inline frame).
2. For each report (in the BIRT project) there's a Wicket's popup modal
window to select parameters.
I am very happy with the module we built for that. It is very easy
to
create new parameters window.
3. When the user chooses the parameters and press OK, I set, using
AttributeModifier, the src attribute of the inline frame.
4. It is all Ajax, so the inline frame is updated with the src, and the
report is generated with the correct parameters..
This module is VERY new in our project. I still have some bugs, but
this
is
how we integrated BIRT and Wicket.
A question to you all:
Has anyone worked with Wicket and BIRT?
(funny, but I planned to ask this anyway)
Eyal
On Mon, Sep 8, 2008 at 11:30 AM, Leon Nieuwoudt
<[EMAIL PROTECTED]>wrote:
Hi all
I would like to know what kind of reporting engines are commonly used
for Wicket-based apps? We have the need to generate CSV, Excel, and
PDF files with graphs and pretty graphics.
We've looked at the JasperReports integration but the docs say it's
not
complete
Thanks in advance
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Med vennlig hilsen
Edvin Syse
Programutvikler
www.sysedata.no / [EMAIL PROTECTED]
Tlf: 333 49700 / Faks: 333 49701
Adresse: Møllegaten 12, 3111 Tønsberg
Syse Data AS -Profesjonelle IT-tjenester
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Med vennlig hilsen
Edvin Syse
Programutvikler
www.sysedata.no / [EMAIL PROTECTED]
Tlf: 333 49700 / Faks: 333 49701
Adresse: Møllegaten 12, 3111 Tønsberg
Syse Data AS -Profesjonelle IT-tjenester
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