GlobalToJSON-embeddedPython-pure

Export a Global into a JSON file and re-create it by reloading from this file. embeddedPython
refers to the new available technologies. It should be understood as a learning exercise of how to
handle the language interfaces. The mayor difference to its predecessor package is:
only embedded Python is used as a demand of the related contest to demonstrate it is doable.
Only Global nodes containing data are presented in the generated JSON file.

Prerequisites

Make sure you have git and Docker desktop installed.

Installation

Clone/git pull the repo into any local directory

git clone https://github.com/rcemper/GlobalToJSON-ePython-pure.git

Run the IRIS container with your project:

docker-compose up -d --build

How to Test it

ObjectScript Wrapper

This is the pre-loaded Global ^dc.MultiD for testing.

Open IRIS terminal

$ docker-compose exec iris iris session iris
USER>
USER>; generate JSON object file from Global
USER>set sc=##class(dc.GblToJSON.ePure).do("^dc.MultiD","gbl.json")
USER>

This is the file content

Now we want to verify the load function.
First we make a copy of our source and then delete the source
After the load operation the source Global is completely restored

USER>merge ^keep=^dc.MultiD  
USER>kill ^dc.MultiD
USER>set sc=##class(dc.GblToJSON.ePure).load("gbl.json")

done
USER>zw sc

sc=1
USER>zw ^dc.MultiD

^dc.MultiD=5

^dc.MultiD(1)=$lb("Braam,Ted Q.",51353)

^dc.MultiD(1,"mJSON")="{}"

^dc.MultiD(2)=$lb("Klingman,Uma C.",62459)

^dc.MultiD(2,2,"Multi","a")=1

^dc.MultiD(2,2,"Multi","rob",1)="rcc"

^dc.MultiD(2,2,"Multi","rob",2)=2222

^dc.MultiD(2,"Multi","a")=1

^dc.MultiD(2,"Multi","rob",1)="rcc"

^dc.MultiD(2,"Multi","rob",2)=2222

^dc.MultiD(2,"mJSON")="{""A"":""ahahah"",""Rob"":""VIP"",""Rob2"":1111,""Rob3"":true}"

^dc.MultiD(3)=$lb("Goldman,Kenny H.",45831)

^dc.MultiD(3,"mJSON")="{}"

^dc.MultiD(4)=$lb("","")

^dc.MultiD(4,"mJSON")="{""rcc"":122}"

^dc.MultiD(5)=$lb("","")

^dc.MultiD(5,"mJSON")="{}"
USER>

Python command line

shell
cd /irisdev/app/src/Python
/usr/irissys/bin/irispython ePure.py dump --file /tmp/global.json --glob ^dc.MultiD

to see the generated file:

more /tmp/global.json

to load it

/usr/irissys/bin/irispython ePure.py load --file /tmp/global.json

q.a.d.

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