82 lines
2.3 KiB
Python
82 lines
2.3 KiB
Python
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"""
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Copyright 2013 Rackspace, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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from collections import OrderedDict
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import time
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from pkg_resources import get_distribution
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from teeth_rest.encoding import Serializable
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from werkzeug.serving import run_simple
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from teeth_agent.api import TeethAgentAPIServer
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class TeethAgentOperationModes(object):
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DECOM = 'DECOM'
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STANDBY = 'STANDBY'
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@classmethod
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def validate_mode(cls, mode):
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if not hasattr(cls, mode) or getattr(cls, mode) != mode:
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raise RuntimeError('Invalid mode: {}'.format(mode))
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class TeethAgentStatus(Serializable):
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def __init__(self, mode, started_at, version):
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self.mode = mode
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self.started_at = started_at
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self.version = version
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def serialize(self, view):
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"""
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Turn the status into a dict.
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"""
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return OrderedDict([
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('mode', self.mode),
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('started_at', self.started_at),
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('version', self.version),
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])
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class TeethAgent(object):
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def __init__(self, listen_host, listen_port, mode):
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TeethAgentOperationModes.validate_mode(mode)
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self.listen_host = listen_host
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self.listen_port = listen_port
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self.started_at = None
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self.mode = mode
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self.api = TeethAgentAPIServer(self)
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def get_status(self):
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"""
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Retrieve a serializable status.
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"""
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return TeethAgentStatus(
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mode=self.mode,
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started_at=self.started_at,
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version=get_distribution('teeth-agent').version
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)
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def run(self):
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"""
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Run the Teeth Agent.
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"""
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if self.started_at:
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raise RuntimeError('Agent was already started')
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self.started_at = time.time()
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run_simple(self.listen_host, self.listen_port, self.api)
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