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DSD-DBS / py-capellambse

A Python 3 headless implementation of the Capella modeling tool.

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Model.save() breaks the model even without modifying anything

nhernand opened this issue · comments

commented

I'm using Capella 5.2.0 and Python 3.12. When using the model.save() function I noticed that the model breaks even without modifying anything of the model. I have looked into the project files and I have found the following issue on the ".capella" file, see below:

Original header on project file with ".capella" extension

<?xml version="1.0" encoding="UTF-8"?>

<!--Capella_Version_5.2.0-->
<org.polarsys.capella.core.data.capellamodeller:Project xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:libraries="http://www.polarsys.org/capella/common/libraries/5.0.0"
    xmlns:org.polarsys.capella.core.data.capellacommon="http://www.polarsys.org/capella/core/common/5.0.0"
    xmlns:org.polarsys.capella.core.data.capellacore="http://www.polarsys.org/capella/core/core/5.0.0"
    xmlns:org.polarsys.capella.core.data.capellamodeller="http://www.polarsys.org/capella/core/modeller/5.0.0"
    xmlns:org.polarsys.capella.core.data.cs="http://www.polarsys.org/capella/core/cs/5.0.0"
    xmlns:org.polarsys.capella.core.data.ctx="http://www.polarsys.org/capella/core/ctx/5.0.0"
    xmlns:org.polarsys.capella.core.data.epbs="http://www.polarsys.org/capella/core/epbs/5.0.0"
    xmlns:org.polarsys.capella.core.data.fa="http://www.polarsys.org/capella/core/fa/5.0.0"
    xmlns:org.polarsys.capella.core.data.information="http://www.polarsys.org/capella/core/information/5.0.0"
    xmlns:org.polarsys.capella.core.data.information.datatype="http://www.polarsys.org/capella/core/information/datatype/5.0.0"
    xmlns:org.polarsys.capella.core.data.information.datavalue="http://www.polarsys.org/capella/core/information/datavalue/5.0.0"
    xmlns:org.polarsys.capella.core.data.la="http://www.polarsys.org/capella/core/la/5.0.0"
    xmlns:org.polarsys.capella.core.data.oa="http://www.polarsys.org/capella/core/oa/5.0.0"
    xmlns:org.polarsys.capella.core.data.pa="http://www.polarsys.org/capella/core/pa/5.0.0"																							
    xmlns:org.polarsys.capella.core.data.pa.deployment="http://www.polarsys.org/capella/core/pa/deployment/5.0.0"
    id="020fbf6d-fcd0-444b-b0ef-f71dda5767bd"

Modified header on project file with ".capella" extension after doing model.save()

<?xml version="1.0" encoding="UTF-8"?>

<!--Capella_Version_5.2.0-->
<ns0:Project xmi:version="2.0" xmlns:libraries="http://www.polarsys.org/capella/common/libraries/5.2.0"
    xmlns:org.polarsys.capella.core.data.capellacommon="http://www.polarsys.org/capella/core/common/5.2.0"
    xmlns:org.polarsys.capella.core.data.capellacore="http://www.polarsys.org/capella/core/core/5.2.0"
    xmlns:org.polarsys.capella.core.data.capellamodeller="http://www.polarsys.org/capella/core/modeller/5.2.0"
    xmlns:org.polarsys.capella.core.data.cs="http://www.polarsys.org/capella/core/cs/5.2.0"
    xmlns:org.polarsys.capella.core.data.ctx="http://www.polarsys.org/capella/core/ctx/5.2.0"
    xmlns:org.polarsys.capella.core.data.epbs="http://www.polarsys.org/capella/core/epbs/5.2.0"
    xmlns:org.polarsys.capella.core.data.fa="http://www.polarsys.org/capella/core/fa/5.2.0"
    xmlns:org.polarsys.capella.core.data.information="http://www.polarsys.org/capella/core/information/5.2.0"
    xmlns:org.polarsys.capella.core.data.information.datatype="http://www.polarsys.org/capella/core/information/datatype/5.2.0"
    xmlns:org.polarsys.capella.core.data.information.datavalue="http://www.polarsys.org/capella/core/information/datavalue/5.2.0"
    xmlns:org.polarsys.capella.core.data.la="http://www.polarsys.org/capella/core/la/5.2.0"
    xmlns:org.polarsys.capella.core.data.oa="http://www.polarsys.org/capella/core/oa/5.2.0"
    xmlns:org.polarsys.capella.core.data.pa="http://www.polarsys.org/capella/core/pa/5.2.0"
    xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:ns0="http://www.polarsys.org/capella/core/modeller/5.0.0"
    id="020fbf6d-fcd0-444b-b0ef-f71dda5767bd"

This causes the model to break. In order to recover the model I have to manually revert these headers back to the original xml. Is there a way to preserve the original namespace? or to prevent these xml declarations from being updated when applying model.save()?

commented

This comes down to an incomplete fix to another issue around namespace handling. I've found the cause and will be releasing a fix shortly.