Uploaded an updated version of the taglib library to:
<https://sourceforge.net/projects/bsf4oorexx/files/Sandbox/rgf/taglibs/beta/>:
added optional
attribute "arguments" to control creation of arguments for script/expr,
optimized multiple Rexx
invocations for the same page.
Currently there have been three students applying the taglib such that it is
regarded to be stable
and bug free, hence also making it known to the bsf4oorexx and oorexx developer
communities which
may be interested in checking out this infrastructure.
If interested, just read the brief information (from "readme.md") at the above
download URL in order
to become able to setup Tomcat 9 and write web applications using Rexx/ooRexx
with Java based web
servers lice Apache Tomcat 9.
If you test this taglib with earlier versions of Tomcat or with other web
servers like IBM WebSphere
and the like, please report back!
---
Here a possible JSP/RSP (Rexx server page), named "hello.jsp" (note the
elements <s:script
type="rexx"> and <s:expr type="rexx">):
<%@ page session="false" pageEncoding="UTF-8" contentType="text/html;
charset=UTF-8" %>
<%@ taglib uri="/WEB-INF/script-jsr223.tld" prefix="s" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<style>
body { background-color: ivory; }
</style>
<title>Sample Application JSP Page Using Rexx Via JSR-223 (Title)</title>
</head>
<body>
<p>Here is the text generated by a Rexx script:
<br><em>
<!-- note: a script can be of any size and complexity --> <s:script
type="rexx">
say 'Hello, world, this is Rexx speaking at' .dateTime~new
</s:script>
</em>
<!-- note: an expression only creates a value that gets returned and
fetched --> <p>It is now exactly (using a Rexx expression):<br>
<em><s:expr type="rexx">.dateTime~new~string</s:expr></em>.</p>
</body>
</html>
and how it gets rendered in a browser:
and here the pure text in case the picture does not make it:
Here is the text generated by a Rexx script:
/Hello, world, this is Rexx speaking at 2020-11-09T15:48:38.429000 /
It is now exactly (using a Rexx expression):
/2020-11-09T15:48:38.429000/.
and here the generated HTML-text that gets returned by the Java based web
server (Tomcat 9 in this
example):
<!DOCTYPE html><html><head><meta charset="UTF-8" /><style>body {
background-color: ivory; }
</style><title>Sample Application JSP Page Using Rexx Via JSR-223
(Title)</title></head><body><p>Here is the text generated by a Rexx script:
<br><em><!-- note: a
script can be of any size and complexity -->Hello, world, this is Rexx
speaking at
2020-11-09T15:48:38.429000 </em><!-- note: an expression only creates a
value that gets returned
and fetched --><p>It is now exactly (using a Rexx
expression):<br><em>2020-11-09T15:48:38.429000</em>.</p></body></html>
Note: the taglib is compiled for Java 6, such that it should be usable on
earlier versions of Java
based web servers as well.
---rony
On 29.10.2020 15:08, Rony G. Flatscher wrote:
> Hi there,
>
> at this year's International Rexx symposium I was able to briefly demonstrate
> an infrastructure with
> which it becomes possible to create web applications with Rexx on Java based
> web servers.
>
> If you point your browsers to
> <https://sourceforge.net/projects/bsf4oorexx/files/Sandbox/rgf/taglibs/beta/?upload_just_completed=true>
> and read through that page you will get a brief overview. The zip-archive
> "demoRexx20201029.zip"
> contains all the examples.
>
> If you want to test it for yourself, you need to download Tomcat 9 (*not*
> Tomcat 10, which is still
> under development), the latest version of ooRexx 5 and BSF4ooRexx.
>
> Although I will be off a few days, you should be able to get everything up
> and running (possibly
> also with WebSphere and the likes, which I had no time to look into).
>
> HTH,
>
> ---rony
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