67 lines
2.2 KiB
Python
67 lines
2.2 KiB
Python
# Copyright 2016 Mycroft AI, Inc.
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#
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# This file is part of Mycroft Core.
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#
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# Mycroft Core is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Mycroft Core is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Mycroft Core. If not, see <http://www.gnu.org/licenses/>.
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import json
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__author__ = 'seanfitz'
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class Message(object):
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def __init__(self, message_type, metadata={}, context=None):
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self.message_type = message_type
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self.metadata = metadata
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self.context = context
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def serialize(self):
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return json.dumps({
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'message_type': self.message_type,
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'metadata': self.metadata,
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'context': self.context
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})
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@staticmethod
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def deserialize(json_str):
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json_message = json.loads(json_str)
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return Message(json_message.get('message_type'),
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metadata=json_message.get('metadata'),
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context=json_message.get('context'))
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def reply(self, message_type, metadata, context={}):
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if not context:
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context = {}
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new_context = self.context if self.context else {}
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for key in context:
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new_context[key] = context[key]
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if 'target' in metadata:
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new_context['target'] = metadata['target']
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elif 'client_name' in context:
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context['target'] = context['client_name']
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return Message(message_type, metadata, context=new_context)
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def publish(self, message_type, metadata, context={}):
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if not context:
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context = {}
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new_context = self.context.copy() if self.context else {}
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for key in context:
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new_context[key] = context[key]
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if 'target' in new_context:
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del new_context['target']
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return Message(message_type, metadata, context=new_context)
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