COST Action TU0902 Meeting: Web Processing Service (WPS) technologies for Integrated Assessment Modelling in Urban Areas

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
Information Source
DescribeProcess (all) XML
Python Code
(PyWPS process code)
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