[PEAK] ZConfigInterpreter with data from STDIN

PJ Eby pje at telecommunity.com
Wed Apr 15 13:19:29 EDT 2015

Have you tried just using  "fd.file:stdin" as the cfgName?

On Wed, Apr 15, 2015 at 8:49 AM, Alexey Smishlayev <alexey at xtech2.lv> wrote:
> Hello!
> I am trying to refactor existing peak application. I need to be able to load
> ZConfig file from data incoming by STDIN. Now, the loader included in peak
> is using files, so I implemented a subclass which should simulate a file
> resource (in file zconfig.py). I also searched peak.ini for any lines
> regarding zconfig. I copied all settings and changed them to point to my
> custom classes (in file custom.ini; "ank.BBS" is my project package).
> In the python script, ZConfigInperpreter was used to get the application
> root component in the following way:
>>    _argv=["ZConfig", scheme, cfgName]
>>    _argv.extend(sys.argv[1:])
>>    return ZConfigInterpreter(
>>        config.makeRoot(),
>>        argv=_argv,
>>        componentName="MYAPP"
>>    )
> Now I want to pass no cfgName and get interpreter to process the STDIN. But
> the PEAK seem to not find settings which I've put in my .ini file and I'm
> stuck.
> I've narrowed it down - the
> ZConfigInterpreter.lookupComponent('zconfig.schema:'+str(url)) returns
> peak.config.load_zconfig.ConfigLoader, instead of my custom class
> (STDINConfigLoader from my file). I tried to trace down the stack with pdb,
> and it seems that some lookup for "zconfig.schema:/path/to/schema/file.xml"
> returns peak.config.load_zconfig.ZConfigSchemaContext.
> I've subclassed that one too, but have no success.
> Can anyone, please, help me, how to replace the standard ZConfig classes?
> Best regards,
> Alexey
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