88 lines
2.5 KiB
Python
88 lines
2.5 KiB
Python
import json
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import time
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from platypush.message import Message
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class Response(Message):
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""" Response message class """
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def __init__(self, target=None, origin=None, id=None, output=None, errors=None,
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timestamp=None, disable_logging=False):
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"""
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Params:
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target -- Target [String]
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origin -- Origin [String]
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output -- Output [String]
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errors -- Errors [List of strings or exceptions]
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id -- Message ID this response refers to
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timestamp -- Message timestamp [Float]
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"""
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super().__init__(timestamp=timestamp)
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self.target = target
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self.output = self._parse_msg(output)
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self.errors = self._parse_msg(errors or [])
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self.origin = origin
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self.id = id
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self.disable_logging = disable_logging
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def is_error(self):
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""" Returns True if the response has errors """
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return len(self.errors) != 0
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@classmethod
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def _parse_msg(cls, msg):
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if isinstance(msg, bytes) or isinstance(msg, bytearray):
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msg = msg.decode('utf-8')
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if isinstance(msg, str):
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try:
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msg = json.loads(msg.strip())
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except ValueError:
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pass
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return msg
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@classmethod
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def build(cls, msg):
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msg = super().parse(msg)
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args = {
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'target': msg['target'],
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'output': msg['response']['output'],
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'errors': msg['response']['errors'],
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'timestamp': msg['_timestamp'] if '_timestamp' in msg else time.time(),
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'disable_logging': msg.get('_disable_logging', False),
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}
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if 'id' in msg:
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args['id'] = msg['id']
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if 'origin' in msg:
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args['origin'] = msg['origin']
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return cls(**args)
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def __str__(self):
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"""
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Overrides the str() operator and converts
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the message into a UTF-8 JSON string
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"""
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response_dict = {
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'id': self.id,
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'type': 'response',
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'target': self.target if hasattr(self, 'target') else None,
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'origin': self.origin if hasattr(self, 'origin') else None,
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'_timestamp': self.timestamp,
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'response': {
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'output': self.output,
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'errors': self.errors,
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},
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}
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if self.disable_logging:
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response_dict['_disable_logging'] = self.disable_logging
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return json.dumps(response_dict)
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# vim:sw=4:ts=4:et:
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