generateCacheFile.py

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#!/usr/bin/python3
 
import argparse
import json
 
import tango
 
 
class Downloader:
    def __init__(self):
        parser = argparse.ArgumentParser()
        parser.add_argument('device')
        self.args = parser.parse_args()
 
    def run(self):
        device = tango.DeviceProxy(self.args.device)
        attributes = device.attribute_list_query_ex()
        registers = []
 
        for attribute in attributes:
 
            registers.append(
                {"name": attribute.label,
                 "length": attribute.max_dim_x,
                 "channels": attribute.max_dim_y,
                 "accessMode": self.deriveAccessMode(attribute),
                 "tangoTypeId": attribute.data_type,
                 "writable": attribute.writable})
        print(json.dumps({"catalogue": registers}, indent=4))
 
    def deriveAccessMode(self, attribute):
        return ""
 
 
if __name__ == "__main__":
    Downloader().run()