tomcat-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Alberto Romei" <a.ro...@centrosistemi.it>
Subject Re: Info on customizing jspc - jasper
Date Thu, 29 Nov 2001 11:14:10 GMT
Hi Tom, and many thanks for the suggestions !

I think i'll use a filter, although the taglib solution is interesting, too.

Thanks

Alberto

----- Original Message -----
From: "Tom Drake" <rtd@pobox.com>
To: "Tomcat Developers List" <tomcat-dev@jakarta.apache.org>
Sent: Wednesday, November 28, 2001 6:38 PM
Subject: Re: Info on customizing jspc - jasper


> Alberto:
>
> Maybe I'm missing something here but couldn't you simply
>  intercept the response output stream and redirect it to a file?
>
> Have you tried using a filter?
>
> Alternatively, ou may be able to do this by 'including'
> your jsp from a servlet or another jsp.
>
> One last thought. Tag libraries have the ability to intercept 'body
content'
> that appears between the corresponding opening and closing tags.
>
>     BodyContent body = getBodyContent();
>     String bodyOfCaptureTag = body.getString();
>     // write bodyOfCaptureTag to file here...
>
> You could create a simple BodyTagSupport taglib object, use this tag in
> a new jsp that you create that looks something like this.
>
> <MyCaptureTag><jsp:include page="TheRealUrlGoesHere"/></MyCaptureTag>
>
> This is a little bizarre, but should even work with Tomcat 3.1 .
>
> Tom
> ----- Original Message -----
> From: "Alberto Romei" <a.romei@centrosistemi.it>
> To: "Tomcat Developers List" <tomcat-dev@jakarta.apache.org>
> Sent: Wednesday, November 28, 2001 2:34 AM
> Subject: Re: Info on customizing jspc - jasper
>
>
> | Hi, and many thanks for the replies.
> | Using <%@page extends="my.jsp.page.class" %> allows me to change only
the
> | name of the superclass for my JSP, but i need to do more than this.
> | I need to change all the fixed lines of the generated code.
> | For example, i would like to change:
> |
> |     public void _jspService(HttpServletRequest request,
> HttpServletResponse
> | response)
> | in
> |     public void _jspService(MyParam p1, String  s, int n)
> |
> | or substituting
> |         JspFactory _jspxFactory = null;
> | with
> |         String name = "X";
> |
> | and so on...
> |
> | The other solution proposed by Mike is good, but HttpServletResponse
needs
> a
> | ServletOutputStream, and the generated servlet calls getPageContext()
> which
> | takes my request and response objects, so i guess my implementation will
> not
> | be so straightforward. Anyway, i think i'll try this way.
> |
> | If you have other ideas, please let me know
> |
> | Thanks
> | Alberto
> |
> | ----- Original Message -----
> | From: "Bill Barker" <wbarker@wilshire.com>
> | To: "Tomcat Developers List" <tomcat-dev@jakarta.apache.org>
> | Sent: Tuesday, November 27, 2001 8:27 PM
> | Subject: Re: Info on customizing jspc - jasper
> |
> |
> | > This is off-topic for the dev list.  You'll probably get a better
> response
> | > from tomcat-user@jakarta.apache.org.
> | >
> | > What you want is <@page extends="my.jsp.page.class" %>
> | > ----- Original Message -----
> | > From: "Alberto Romei" <a.romei@centrosistemi.it>
> | > To: <tomcat-dev@jakarta.apache.org>
> | > Sent: Tuesday, November 27, 2001 10:32 AM
> | > Subject: Info on customizing jspc - jasper
> | >
> | >
> | > > I wanted to use JspC to generate a java program (not exactly a
> servlet)
> | > > which writes its output to a file on the disk instead of the
> | > > HttpServletResponse's JspWriter.
> | > >
> | > > In practice, i just need to customize the fixed parts of the
generated
> | > code
> | > > like:
> | > >
> | > >     public class Foo extends HttpJspBase {
> | > >
> | > > or
> | > >
> | > >     public void _jspService(HttpServletRequest request,
> | > HttpServletResponse
> | > > response)
> | > >         throws java.io.IOException, ServletException {
> | > >
> | > > From what i've seen, i could simply substitute JspParseEventListener
> in
> | > the
> | > > jasper jars, but in this way i would "throw away" the normal
> processing
> | of
> | > > JSPs.
> | > >
> | > > So, what is the correct way to customize the JSP compilation ?
> | > > Must i subclass org.apache.jasper.compiler.Compiler and call
> | > > MyCompiler.something() instead of jspc.parseFiles() ? (that would be
a
> | lot
> | > > of work... )
> | > > If so, is there any kind of documentation on how to correctly write
a
> | > custom
> | > > JSP compiler ? (possibly working with future versions of tomcat,
too)
> | > >
> | > > Any suggestion is appreciated.
> | > >
> | > > Thanks
> | > >
> | > > Alberto
> | > >
> | > > P.S.
> | > > I'm new to tomcat source, so please be patient.
> | > >
> | > >
> | > >
> | > > --
> | > > To unsubscribe, e-mail:
> | > <mailto:tomcat-dev-unsubscribe@jakarta.apache.org>
> | > > For additional commands, e-mail:
> | > <mailto:tomcat-dev-help@jakarta.apache.org>
> | > >
> | >
> | >
> | > *----*
> | >
> | > This message is intended only for the use of the person(s) listed
above
> | > as the intended recipient(s), and may contain information that is
> | > PRIVILEGED and CONFIDENTIAL.  If you are not an intended recipient,
> | > you may not read, copy, or distribute this message or any attachment.
> | > If you received this communication in error, please notify us
> immediately
> | > by e-mail and then delete all copies of this message and any
> attachments.
> | >
> | >
> | > In addition you should be aware that ordinary (unencrypted) e-mail
sent
> | > through the Internet is not secure. Do not send confidential or
> sensitive
> | > information, such as social security numbers, account numbers,
personal
> | > identification numbers and passwords, to us via ordinary (unencrypted)
> | > e-mail.
> | >
> | > --
> | > To unsubscribe, e-mail:
> | <mailto:tomcat-dev-unsubscribe@jakarta.apache.org>
> | > For additional commands, e-mail:
> | <mailto:tomcat-dev-help@jakarta.apache.org>
> | >
> |
> |
> |
> | --
> | To unsubscribe, e-mail:
> <mailto:tomcat-dev-unsubscribe@jakarta.apache.org>
> | For additional commands, e-mail:
> <mailto:tomcat-dev-help@jakarta.apache.org>
> |
> |
> |
>
>
> --
> To unsubscribe, e-mail:
<mailto:tomcat-dev-unsubscribe@jakarta.apache.org>
> For additional commands, e-mail:
<mailto:tomcat-dev-help@jakarta.apache.org>
>



--
To unsubscribe, e-mail:   <mailto:tomcat-dev-unsubscribe@jakarta.apache.org>
For additional commands, e-mail: <mailto:tomcat-dev-help@jakarta.apache.org>


Mime
View raw message