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from opendc.models.experiment import Experiment
from opendc.models.machine_state import MachineState
from opendc.util import exceptions
from opendc.util.rest import Response
def GET(request):
"""Get this Experiment's Machine States."""
# Make sure required parameters are there
try:
request.check_required_parameters(path={'experimentId': 'int'})
except exceptions.ParameterError as e:
return Response(400, e.message)
# Instantiate an Experiment from the database
experiment = Experiment.from_primary_key((request.params_path['experimentId'], ))
# Make sure this Experiment exists
if not experiment.exists():
return Response(404, '{} not found.'.format(experiment))
# Make sure this user is authorized to view this Experiment's Machine States
if not experiment.google_id_has_at_least(request.google_id, 'VIEW'):
return Response(403, 'Forbidden from viewing Machine States for {}.'.format(experiment))
# Get and return the Machine States
if 'tick' in request.params_query:
machine_states = MachineState.from_experiment_id_and_tick(request.params_path['experimentId'],
request.params_query['tick'])
else:
machine_states = MachineState.from_experiment_id(request.params_path['experimentId'])
return Response(200, 'Successfully retrieved Machine States for {}.'.format(experiment),
[x.to_JSON() for x in machine_states])
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