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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 six |
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from st2common.exceptions.content import ParseException |
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from st2common.models.utils.action_alias_utils import extract_parameters |
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def list_format_strings_from_aliases(aliases): |
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''' |
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List patterns from a collection of alias objects |
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:param aliases: The list of aliases |
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:type aliases: ``list`` of :class:`st2common.persistence.actionalias.ActionAlias` |
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:return: A description of potential execution patterns in a list of aliases. |
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:rtype: ``list`` of ``dict`` |
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''' |
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patterns = [] |
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for alias in aliases: |
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for _format in alias.formats: |
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display, representations = normalise_alias_format(_format) |
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patterns.append([(display, representation) for representation in representations]) |
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return patterns |
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def normalise_alias_format(self, alias_format): |
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''' |
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StackStorm action aliases can have two types; |
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1. A simple string holding the format |
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2. A dictionary which hold numerous alias format "representation(s)" |
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With a single "display" for help about the action alias. |
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This function processes both forms and returns a standardized form. |
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:param alias_format: The alias format |
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:type alias_format: ``str`` or ``dict`` |
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:return: The representation of the alias |
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:rtype: ``tuple`` of (``str``, ``str``) |
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''' |
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display = None |
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representation = [] |
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if isinstance(alias_format, six.string_types): |
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display = alias_format |
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representation.append(alias_format) |
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elif isinstance(alias_format, dict): |
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display = alias_format['display'] |
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representation = alias_format['representation'] |
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else: |
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raise TypeError("alias_format is neither a dictionary or string type.") |
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return (display, representation) |
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def match_command_to_alias(command, aliases): |
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""" |
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Match the text against an action and return the action reference. |
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""" |
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results = [] |
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for alias in aliases: |
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# this is lazy, fix up. -ANT |
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format_strings = list_format_strings_from_aliases([aliases]) |
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for format_string in format_strings: |
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try: |
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extract_parameters(format_str=format_string, |
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param_stream=command) |
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except ParseException: |
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continue |
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results.append((alias, format_string)) |
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return results |
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StackStorm /
st2
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