100 lines
3.3 KiB
Python
100 lines
3.3 KiB
Python
"""
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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 teeth_rest import component
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from teeth_rest import errors
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from teeth_rest import responses
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class AgentCommand(object):
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def __init__(self, name, params):
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self.name = name
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self.params = params
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@classmethod
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def deserialize(cls, obj):
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for field in ['name', 'params']:
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if field not in obj:
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msg = 'Missing command \'{}\' field.'.format(field)
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raise errors.InvalidContentError(msg)
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if type(obj['params']) != dict:
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raise errors.InvalidContentError(
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'Command params must be a dictionary.')
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return cls(obj['name'], obj['params'])
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class TeethAgentAPI(component.APIComponent):
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"""The primary Teeth Agent API."""
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def __init__(self, agent):
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super(TeethAgentAPI, self).__init__()
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self.agent = agent
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def add_routes(self):
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"""Called during initialization. Override to map relative routes to
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methods.
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"""
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self.route('GET', '/status', self.get_agent_status)
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self.route('GET', '/commands', self.list_command_results)
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self.route('POST', '/commands', self.execute_command)
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self.route('GET',
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'/commands/<string:result_id>',
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self.get_command_result)
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def get_agent_status(self, request):
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"""Get the status of the agent."""
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return responses.ItemResponse(self.agent.get_status())
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def list_command_results(self, request):
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# TODO(russellhaering): pagination
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command_results = self.agent.list_command_results()
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return responses.PaginatedResponse(request,
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command_results,
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self.list_command_results,
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None,
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None)
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def execute_command(self, request):
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"""Execute a command on the agent."""
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command = AgentCommand.deserialize(self.parse_content(request))
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result = self.agent.execute_command(command.name, **command.params)
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wait = request.args.get('wait')
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if wait and wait.lower() == 'true':
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result.join()
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return responses.ItemResponse(result)
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def get_command_result(self, request, result_id):
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"""Retrieve the result of a command."""
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result = self.agent.get_command_result(result_id)
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wait = request.args.get('wait')
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if wait and wait.lower() == 'true':
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result.join()
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return responses.ItemResponse(result)
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class TeethAgentAPIServer(component.APIServer):
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"""Server for the teeth agent API."""
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def __init__(self, agent):
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super(TeethAgentAPIServer, self).__init__()
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self.add_component('/v1.0', TeethAgentAPI(agent))
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