import json import datetime class D3MapBuilder: def __init__(self, db): self._db = db def build(self): output = dict() now = datetime.datetime.utcnow().replace(microsecond=0) nodes = self._db.get_nodes() output['nodes'] = [{'name': x.name, 'id': x.id, 'macs': ', '.join(x.macs), 'geo': [float(x) for x in x.gps.split(" ")] if x.gps else None, 'flags': x.flags } for x in nodes] links = self._db.get_links() output['links'] = [{'source': x.source.id, 'target': x.target.id, 'quality': x.quality, 'type': x.type, 'id': x.id } for x in links] output['meta'] = { 'timestamp': now.isoformat() } return json.dumps(output)