This post originated from an RSS feed registered with Java Buzz
by Aleksander Slominski.
Original Post: Xydra: easy way to add Web Services to your portal
Feed Title: alek blogs java
Feed URL: http://www.extreme.indiana.edu/~aslom/blog/java/index.xml
Feed Description: discovering limits of programming
Xydra is a library
that uses servlet to provide XHTML based WSDL invoker. Xydra servlet takes WSDL
with XML Schema complex types as input, generates XHTML form
to allow user to fill content of input message, gathers submitted input values and converts form name-value pairs
into XML message that is sent it to Web Service and then finally displays result message.
One could ask: there are other WSDL invokers so what makes Xydra unique? Here
is couple reasons:
Xydra has pluggable data model and currently two backend to
represent form and XML message content One is traditional
name-value pairs that are structured into tree (called TreePath) and
second that is based on Protege
engine to use ontology describing web service to allow more reach
constraints and relationship validation (called OntoBrew).
It is very easy to customize Xydra look and feel: just save
auto-generated XHTML page, modify it to your needs and tell Xydra to
use this XHTML page as template. What makes it really easy is that
template is a regular XHTML page that is used by Xydra processing
engine (unsurprisingly called Diesel) to annotate it with runtime
information.
Xydra support complex types and generate nice XHTML form UI for
arbitrarily nested XHTML forms.
You get source code so you can improve it :-)
Sample installation is available online to test drive Xydra. It is open
source so anybody can play with it, improve it, and give us feedback, patches
are gladly accepted, we may even fix some bugs when reported (good bug report
that contains all information necessary to reproduce problem and/or unit test
greatly increases chances of getting problem fixed ...)
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