csw.getrecords2 having problem with CWIC CSW about owslib

[tomkralidis]

@rsignell-usgs thanks for the info. What does self.request look like? If you can't get to it, perhaps you can put a print statement at https://github.com/geopython/OWSLib/blob/master/owslib/csw.py#L340 to see?

[rsignell-usgs]

print self.request
<Element {http://www.opengis.net/cat/csw/2.0.2}GetRecords at 0xa107300>

[tomkralidis]

oops sorry wrong area. Put that in https://github.com/geopython/OWSLib/blob/master/owslib/csw.py#L574 ?

[rsignell-usgs]

<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<csw:GetRecords xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:csw="http://www.opengis.net/cat/csw/2.0.2" outputSchema="http://www.opengis.net/cat/csw/2.0.2" outputFormat="application/xml" version="2.0.2" service="CSW" resultType="results" maxRecords="2" xsi:schemaLocation="http://www.opengis.net/cat/csw/2.0.2 http://schemas.opengis.net/csw/2.0.2/CSW-discovery.xsd"><csw:Query typeNames="csw:Record"><csw:ElementSetName>summary</csw:ElementSetName></csw:Query></csw:GetRecords>

[tomkralidis]

@rsignell-usgs thanks. That's a perfectly valid CSW request which should yield a response with 2 records. Something's up with the CWIC endpoint.

[rsignell-usgs]

Yuanzheng Shao at GMU found that it's not a well-accepted request because the dataset identifier is a mandatory parameter. He says:

Please go the the following test page to get the sample request and response:
http://cwic.csiss.gmu.edu/testpage.html

Please note that in the request we have the following XML segment:

<ogc:PropertyIsEqualTo>
        <ogc:PropertyName>dc:subject</ogc:PropertyName>
        <ogc:Literal>ABOM-L4HRfnd-AUS-RAMSSA_09km</ogc:Literal>
</ogc:PropertyIsEqualTo>

This is used to specify dataset of interest.

[tomkralidis]

@rsignell-usgs should we close this at this point? The CWIC endpoint requires the abovementioned ogc:PropertyIsEqualTo construct for GetRecords request. This is local to the CWIC profile of CSW. Having said this, you could simply add this filter to your owslib.csw.getrecords2 call, provided you know the value of the dc:subject you'd like to specify.

[rsignell-usgs]

@tomkralidis Do you understand this? The whole purpose of the getrecords2 query is to find the datasets that meet the query request, right? How could we possibly specify the dataset name as part of the query?

[tomkralidis]

@rsignell-usgs I think the idea of CWIC GetRecords is to have apriori knowledge of what datasets you're searching within, as opposed to finding the existence of them, as in pure CSW. In other words, CWIC is adding constraints to the CSW specification.