forked from Archive/PX4-Autopilot
60 lines
2.1 KiB
Python
60 lines
2.1 KiB
Python
import codecs
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import json
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import sys
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import os
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class JsonOutput():
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def __init__(self, groups):
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all_json = {}
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all_json['version'] = 2
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component = {}
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all_json['components'] = {1: component} #1: autopilot component
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all_events = {}
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component['namespace'] = "px4"
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component['event_groups'] = all_events
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for group in groups:
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current_group = {}
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current_events = {}
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current_group['events'] = current_events
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all_events[group] = current_group
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for e in groups[group]:
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event_obj = {}
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event_obj['name'] = e.name
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event_obj['message'] = e.message
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if e.type is not None:
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event_obj['type'] = e.type
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if e.description is not None:
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event_obj['description'] = e.description
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args = []
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for i in range(len(e.arguments)):
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arg = {}
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arg['type'] = e.arguments[i][0]
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arg['name'] = e.arguments[i][1]
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args.append(arg)
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if len(args) > 0:
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event_obj['arguments'] = args
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sub_id = e.sub_id
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assert sub_id not in current_events, \
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"Duplicate event ID for {0} (message: '{1}'), other event message: '{2}'".format(
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e.name, e.message, current_events[sub_id]['message'])
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current_events[sub_id] = event_obj
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self.json = all_json
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def save(self, filename):
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need_to_write = True
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# only write if current file is not the same, to avoid updating the file
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# timestamp
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if os.path.isfile(filename):
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with open(filename, 'rb') as json_file:
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existing_data = json.load(json_file)
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if existing_data == self.json:
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need_to_write = False
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if need_to_write:
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with codecs.open(filename, 'w', 'utf-8') as f:
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f.write(json.dumps(self.json,indent=2))
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