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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 time |
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from lib.actions import OrionBaseAction |
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from lib.utils import send_user_error |
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class NodesPollNow(OrionBaseAction): |
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def run(self, nodes, count, pause): |
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""" |
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Invoke a PollNow verb against a Orion Node. |
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Args: |
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- node: The caption in Orion of the node to poll. |
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- count: Number of polls to complete. |
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- pause: Number of seconds to wait between each cycle. |
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Returns |
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True: As PollNow does not return any data. |
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Raises: |
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IndexError: When a nodes is not found. |
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""" |
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self.results = {'down': [], |
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'up': [], |
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'extra_count': False} |
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self.connect() |
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self.orion_nodes = [] |
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for node in nodes: |
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orion_node = self.get_node(node) |
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if orion_node.npm: |
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self.orion_nodes.append(orion_node.npm_id) |
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else: |
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error_msg = "Node not found" |
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send_user_error(error_msg) |
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raise ValueError(error_msg) |
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for c in range(count): |
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self._pollnow_nodes(count, pause) |
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if len(self.orion_nodes) == 0: |
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self.results['last_count'] = c |
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break |
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else: |
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self.results['last_count'] = count |
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if len(self.orion_nodes) > 0: |
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self.results['extra_pass'] = True |
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for c in range(count): |
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self._pollnow_nodes(count, pause) |
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else: |
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self.results['left'] = self.orion_nodes |
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# These Invoke's return None, so we just return True |
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return self.results |
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def _pollnow_nodes(self, count, pause): |
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""" |
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Carry out a poll on any remaining orion nodes and remove those |
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that are up or down. |
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Args: |
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- count: Number of polls to complete. |
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- pause: Number of seconds to wait between each cycle. |
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Returns: |
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- None. |
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Raises: |
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- None. |
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""" |
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for npm_id in self.orion_nodes: |
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swql = "SELECT Status FROM Orion.Nodes WHERE NodeID=@NodeID" |
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kargs = {'NodeID': npm_id} |
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orion_data = self.query(swql, **kargs) |
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if orion_data['results'][0]['Status'] == 1: |
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self.results['up'].append(npm_id) |
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self.orion_nodes.remove(npm_id) |
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elif orion_data['results'][0]['Status'] == 2: |
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self.orion_nodes.remove(npm_id) |
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self.results['down'].append(npm_id) |
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self.invoke("Orion.Nods", |
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"PollNow", |
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npm_id) |
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else: |
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time.sleep(pause) |
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