Presentation made in Luxemburg for workshop Web Processing Service (WPS) technologies for Integrated Assessment Modelling in Urban Areas COST Action: TU0902 – 21-24 Jan 2014, Luxemburg

1. WPS Orchestration in Taverna
Jorge S. Mendes de Jesus
Web Processing Service (WPS) technologies for Integrated Assessment Modelling in Urban Areas
COST Action: TU0902 – 21-24 Jan 2014, Luxemburg

2. WhoAmI
Programmer, working in Wageningen (NL) @ ISRIC
This presentation covers my work @ PML
(Plymouth Marine Laboratory)

3. Project
http://netmar.nersc.no/
http://rsg.pml.ac.uk/

4. Story telling....an uncharted annex...
Basically some generic description of SOAP and WSDL support

5. SOAP, WSDL..and WPS
• Have you ever noticed this ?????

6. SOAP, WSDL..and WPS
DANGER, here be dragons

7. WSDL
The Web Services Description Language is an XML-based
interface description language that is used for describing the
functionality offered by a web service.
XML that describes how your web
service works , what it accepts and
how it communicates.

8. WSDL
Yes, we need to re-invent the wheel....in this case WPS..inside WSDL
<definitions>
<types>
definition of
types........
</types>
<message>
definition of a
message....
</message>
<portType>
definition of a
port.......
</portType>
<binding>
definition of a
binding....
</binding>
<service>
defintion of a service
<service>
</definitions>

9. SOAP

10. SOAP
Are you ready to see an execute Process in SOAP???

11. SOAP
Dummy process, adds and subtracts 1
<soap:Envelope
xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
<soap:Body>
<ExecuteProcess_DummyProcess>
<datainput1>10</datainput1>
<datainput2>20</datainput2>
</ExecuteProcess_DummyProcess>
</soap:Body>
</soap:Envelope>
Attr in El name
XML blasphemy !!!
Totally different from WPS

12. 4-some: PyWPS, WSDL, SOAP and XSLT
Warning!!!! Here be translations

13. 4-some: PyWPS, WSDL, SOAP and XSLT
DescribeProcess (all) XML
Python Code
(PyWPS process code)
Information Source
XSLT

14. 4-some: PyWPS, WSDL, SOAP and XSLT
New worlds, new opportunities !!!!! Before the new world......

15. 4-some: PyWPS, WSDL, SOAP and XSLT
If you create a PyWPS it will be automatically translate to
WSDL....so no extra config.....everything transparent
SOAP requests are translated to/from WPS requests/responses
Processes splited into sync and async since we need to
define a different reply for async (No WSDL overloading)

16. 5-some: PyWPS, WSDL, SOAP, XLST and Taverna
Lets give a look at the bioinformatics jungle....

17. 5-some: PyWPS, WSDL, SOAP, XLST and Taverna
Having WSDL/SOAP we can run WPS in
Taverna....Orchestration

18. Taverna (http://www.taverna.org.uk/)

19. Taverna (http://www.taverna.org.uk/)
Examples:
Gdalinfo:
http://www.myexperiment.org/workflows/2313.html:
Watersheed:
http://www.myexperiment.org/workflows.2066.html
SomeErrors:
http://www.myexperiment.org/workflows/2340.html

20. Children play !!!!!
http://rsg.pml.ac.uk/wps/example/index.html

21. Extensive documentation
http://wiki.rsg.pml.ac.uk/pywps/PyWPS

22. Thank you