73 lines
2.3 KiB
Python
73 lines
2.3 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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'''
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Client side of the evoque engine RPC API.
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'''
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from evoque.common import consts
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from evoque.common import messaging
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class EngineClient(object):
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'''Client side of the evoque engine rpc API.'''
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BASE_RPC_API_VERSION = '1.0'
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def __init__(self):
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self._client = messaging.get_rpc_client(
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topic=consts.ENGINE_TOPIC,
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server='0.0.0.0',
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version=self.BASE_RPC_API_VERSION)
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@staticmethod
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def make_msg(method, **kwargs):
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return method, kwargs
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def call(self, ctxt, msg, version=None):
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method, kwargs = msg
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if version is not None:
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client = self._client.prepare(version=version)
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else:
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client = self._client
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return client.call(ctxt, method, **kwargs)
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def cast(self, ctxt, msg, version=None):
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method, kwargs = msg
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if version is not None:
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client = self._client.prepare(version=version)
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else:
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client = self._client
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return client.cast(ctxt, method, **kwargs)
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def local_error_name(self, error):
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'''Returns the name of the error with any _Remote postfix removed.
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:param error: Remote raised error to derive the name from.
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'''
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error_name = error.__class__.__name__
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return error_name.split('_Remote')[0]
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def ignore_error_named(self, error, name):
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'''Raises the error unless its local name matches the supplied name
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:param error: Remote raised error to derive the local name from.
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:param name: Name to compare local name to.
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'''
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if self.local_error_name(error) != name:
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raise error
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def ticket_create(self, ctxt, name):
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return self.call(ctxt, self.make_msg('ticket_create',
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name=name))
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