platypush/platypush/message/response/__init__.py

61 lines
1.6 KiB
Python

import json
from platypush.message import Message
class Response(Message):
""" Response message class """
def __init__(self, target=None, origin=None, id=None, output=None, errors=[]):
"""
Params:
target -- Target [String]
origin -- Origin [String]
output -- Output [String]
errors -- Errors [List of strings or exceptions]
id -- Message ID this response refers to
"""
self.target = target
self.output = output
self.errors = errors
self.origin = origin
self.id = id
def is_error(self):
""" Returns True if the respopnse has errors """
return len(self.errors) != 0
@classmethod
def build(cls, msg):
msg = super().parse(msg)
args = {
'target' : msg['target'],
'output' : msg['response']['output'],
'errors' : msg['response']['errors'],
}
if 'id' in msg: args['id'] = msg['id']
if 'origin' in msg: args['origin'] = msg['origin']
return cls(**args)
def __str__(self):
"""
Overrides the str() operator and converts
the message into a UTF-8 JSON string
"""
return json.dumps({
'id' : self.id,
'type' : 'response',
'target' : self.target if hasattr(self, 'target') else None,
'origin' : self.origin if hasattr(self, 'origin') else None,
'response' : {
'output' : self.output,
'errors' : self.errors,
},
})
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