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# Licensed to the StackStorm, Inc ('StackStorm') under one or more |
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# contributor license agreements. See the NOTICE file distributed with |
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# this work for additional information regarding copyright ownership. |
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# The ASF licenses this file to You under the Apache License, Version 2.0 |
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# (the "License"); you may not use this file except in compliance with |
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# the License. You may obtain 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, |
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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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import ast |
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import json |
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import re |
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import retrying |
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from oslo_config import cfg |
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from st2common.constants import action as action_constants |
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from st2common import log as logging |
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from st2common.callback import base as callback |
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from st2common.persistence.execution import ActionExecution |
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from st2common.util import url as url_utils |
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from st2common.util.workflow import mistral as utils |
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LOG = logging.getLogger(__name__) |
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STATUS_MAP = { |
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action_constants.LIVEACTION_STATUS_REQUESTED: 'RUNNING', |
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action_constants.LIVEACTION_STATUS_SCHEDULED: 'RUNNING', |
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action_constants.LIVEACTION_STATUS_DELAYED: 'RUNNING', |
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action_constants.LIVEACTION_STATUS_RUNNING: 'RUNNING', |
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action_constants.LIVEACTION_STATUS_SUCCEEDED: 'SUCCESS', |
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action_constants.LIVEACTION_STATUS_FAILED: 'ERROR', |
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action_constants.LIVEACTION_STATUS_TIMED_OUT: 'ERROR', |
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action_constants.LIVEACTION_STATUS_ABANDONED: 'ERROR', |
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action_constants.LIVEACTION_STATUS_CANCELING: 'RUNNING', |
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action_constants.LIVEACTION_STATUS_CANCELED: 'CANCELLED' |
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} |
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def get_instance(): |
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return MistralCallbackHandler |
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def get_action_execution_id_from_url(url): |
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match = re.search('(.+)/action_executions/(.+)', url) |
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if not match or len(match.groups()) != 2: |
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raise ValueError('Unable to extract the action execution ID ' |
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'from the callback URL (%s).' % (url)) |
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return match.group(2) |
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class MistralCallbackHandler(callback.AsyncActionExecutionCallbackHandler): |
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@classmethod |
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@retrying.retry( |
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retry_on_exception=utils.retry_on_exceptions, |
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wait_exponential_multiplier=cfg.CONF.mistral.retry_exp_msec, |
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wait_exponential_max=cfg.CONF.mistral.retry_exp_max_msec, |
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stop_max_delay=cfg.CONF.mistral.retry_stop_max_msec) |
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def _update_action_execution(cls, url, data, auth_token): |
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action_execution_id = get_action_execution_id_from_url(url) |
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LOG.info('Sending callback to %s with data %s.', url, data) |
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base_url = url_utils.get_url_without_trailing_slash(cfg.CONF.mistral.v2_base_url) |
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client = utils.get_client(base_url, auth_token=auth_token) |
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client.action_executions.update(action_execution_id, **data) |
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@classmethod |
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def callback(cls, url, context, status, result): |
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if status not in action_constants.LIVEACTION_COMPLETED_STATES: |
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return |
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parent_ex_id = context['parent']['execution_id'] |
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parent_ex = ActionExecution.get_by_id(parent_ex_id) |
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parent_ex_ctx = parent_ex.context |
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mistral_ctx = parent_ex_ctx.get('mistral', {}) |
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auth_token = mistral_ctx.get('auth_token', None) |
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try: |
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if isinstance(result, basestring) and len(result) > 0 and result[0] in ['{', '[']: |
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value = ast.literal_eval(result) |
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if type(value) in [dict, list]: |
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result = value |
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output = json.dumps(result) if type(result) in [dict, list] else str(result) |
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data = {'state': STATUS_MAP[status], 'output': output} |
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cls._update_action_execution(url, data, auth_token) |
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except Exception as e: |
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LOG.exception(e) |
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StackStorm /
st2
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