Paul, Whew! Sounds complicated.
I'll take a look. Thanks for the detailed report. Dave On Tue, Apr 30, 2019 at 04:34:51PM -0400, Paul Vajda wrote: > Hello, > I recently found your generateDS python tool to convert XML Schema into > python data structures and was hoping you could lend me a hand. I found > the SourceForge page but form the looks of it it seems the support threads > have not been active in a few years, so I thought I might send you the > question directly to make sure you saw it. I apologize in advance and > would gladly post in the forums so we could discuss there if you’d prefer. > After two days of banging my head against the wall, here is where I am > at... > I’m attempting to generate a python data structure using the AIXM XML > Schema, found here (under AIXM Data - first link AIXM > 5.1): > https://www.faa.gov/air_traffic/flight_info/aeronav/aero_data/NASR_Subscription_2019-04-25/ > That directory contains the following: > 1. ISO_19136_Schemas (directory) > 2. ISO_19139_Schemas (directory) > 3. message (directory) > 4. xlink (directory) > 5. AIXM_Features.xsd > 6. AIXM_DataTypes.xsd > 7. AIXM_AbstractGML_ObjectTypes.xsd > By comparing with AIXM compliant XML documents, I figured out that > /message/AIXM_BasicMessage.xsd had to the schema used in the command line > to obtain a complete data structure. In other words, > AIXM_BasicMessage.xsd contains references to AIXM_Features, DataTypes and > so forth, witch in turn contain references to schemas contained in the > ISO_19136_Schemas directory. > I first tried a simple command in my terminal window: > ../../.././bin/python3 generateDS.py -o testingAIXM.py -s > testingAIXMsubs.py ../aixmschemaTEST4/message/AIXM_BasicMessage.xsd > And terminal output: > *** warning. Removing child with duplicate name: "Boolean" > *** warning. Removing child with duplicate name: "AbstractObject" > *** warning. Removing child with duplicate name: "Curve" > *** warning. Removing child with duplicate name: "Point" > *** warning. Removing child with duplicate name: "Surface” > And that’s it, it seems everything worked. > I then tried to validate the DS by parsing the > following: > https://ext.eurocontrol.int/aixm_confluence/display/AIX/AIXM+5.1+-+sample+data+files > : > COCESNA_20170516_sample.xml > However, when I attempt to parse using the parse function, I got an error: > obj_ = dateTime.factory(parent_object_=self) > NameError: name 'dateTime' is not defined > Upon closer inspection, and retracing the terminal output, I found that at > line 193311 of testingAIXM.py: > elif nodeName_ == 'origin': > obj_ = dateTime.factory(parent_object_=self) > obj_.build(child_) > self.origin = obj_ > obj_.original_tagname_ = ‘origin' > Indeed, searching the generated python document by generateDS, I could not > find one instance where dateTime is defined. (! so I got pretty confused) > Question: why do certain classes contain references to a dateTime class > when it was never defined? > So I compared the class that that snipped of code was located in with the > XML Schema, and found that ‘origin’, in the schema, had as > type CodeFlightOriginType. That type is defined in testingAIXM.py, so I > replaced dateTime with CodeFlightOriginType. > Doing that successfully sidestepped the error, but led to a new one: > AttributeError: 'CurveSegmentArrayPropertyType' object has no attribute > ‘ArcByCenterPoint' > This error brought me back to your documentation on prefix mismatch. The > schemas I’m trying to ‘pythonize’ have several namespace prefixes. I did > find a support > thread https://sourceforge.net/p/generateds/mailman/message/24027239/ > posted > back in 2009. > However, I have a feeling that both the errors I described above are two > separate things, and simply manually swapping a line of code for another > does not actually fix anything.. > Questions: > 1. In response to Erica’s question (2009), you did mention that > generateDS only supported one namespace prefix. Since 2009, has that > changed? I tried defining multiple namespace prefixes using the -a > flag but that didn’t work. I also tried re-running my terminal > command with only one namespace prefix: -a “aixm:” but that did not > change the output testingAIXM.py > 2. What actually does specifying the namespace prefix do? After > searching a bit I found that in > ISO_19136_Schemas/geometryPrimitives.xsd, > CurveSegmentArrayPropertyType does refer to ArcByCenterPoint. > > (http://www.datypic.com/sc/niem21/t-gml32_CurveSegmentArrayPropertyType.html) > 3. Do you have any recommendations of actions I could try on my end to > debug this? > I greatly appreciate your help and look forward to hearing back, > Thank you, > -Paul -- Dave Kuhlman http://www.davekuhlman.org _______________________________________________ generateds-users mailing list generateds-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/generateds-users
