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authorAnkitkumar Patel <ankit@research.att.com>2018-02-11 17:51:13 -0500
committerAnkitkumar Patel <ankit@research.att.com>2018-02-11 17:52:51 -0500
commit0b855c08fd98fb8fa0f4bc40d8df430c897b4bad (patch)
treeefdd3c7ab31be64080dd71951a64d13f0ba493de /utils/programming_utils.py
parentbb8471cae394aa6ff0af8ba3e5354f3b121c56fc (diff)
Re-org folders, onboard test folder, test config
Reorganized the folder structure. Onboarded testcases. Added test config. Issue-ID: OPTFRA-74 Change-Id: I97882a162a405a18ffd287495039e15ae9d0ad7b Signed-off-by: Ankitkumar Patel <ankit@research.att.com>
Diffstat (limited to 'utils/programming_utils.py')
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1 files changed, 0 insertions, 105 deletions
diff --git a/utils/programming_utils.py b/utils/programming_utils.py
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@@ -1,105 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) 2015-2017 AT&T Intellectual Property
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-# -------------------------------------------------------------------------
-#
-
-import collections
-import itertools
-
-
-class DotDict(dict):
- """A dot-dict mixin to be able to access a dictionary via dot notation
- source: https://stackoverflow.com/questions/2352181/how-to-use-a-dot-to-access-members-of-dictionary
- """
- __getattr__ = dict.get
- __setattr__ = dict.__setitem__
- __delattr__ = dict.__delitem__
-
-
-class MetaSingleton(type):
- """Singleton class (2nd Chapter) from Learning Python Design Patterns - 2nd ed.
- Chetan Giridhar, Packt Publ. 2016"""
- _instances = {}
-
- def __call__(cls, *args, **kwargs):
- if cls not in cls._instances:
- cls._instances[cls] = super(MetaSingleton, cls).__call__(*args, **kwargs)
- return cls._instances[cls]
-
-
-def namedtuple_with_defaults(typename, field_names, default_values=()):
- """A namedtuple with default values -- Stack overflow recipe from Mark Lodato
- http://stackoverflow.com/questions/11351032/named-tuple-and-optional-keyword-arguments
- :param typename: Name for the class (same as for namedtuple)
- :param field_names: Field names (same as for namedtuple)
- :param default_values: Can be specified as a dictionary or as a list
- :return: New namedtuple object
- """
- T = collections.namedtuple(typename, field_names)
- T.__new__.__defaults__ = (None,) * len(T._fields)
- if isinstance(default_values, collections.Mapping):
- prototype = T(**default_values)
- else:
- prototype = T(*default_values)
- T.__new__.__defaults__ = tuple(prototype)
- return T
-
-
-def dot_notation(dict_like, dot_spec):
- """Return the value corresponding to the dot_spec from a dict_like object
- :param dict_like: dictionary, JSON, etc.
- :param dot_spec: a dot notation (e.g. a1.b1.c1.d1 => a1["b1"]["c1"]["d1"])
- :return: the value referenced by the dot_spec
- """
- attrs = dot_spec.split(".") # we split the path
- parent = dict_like.get(attrs[0])
- children = ".".join(attrs[1:])
- if not (parent and children): # if no children or no parent, bail out
- return parent
- if isinstance(parent, list): # here, we apply remaining path spec to all children
- return [dot_notation(j, children) for j in parent]
- elif isinstance(parent, dict):
- return dot_notation(parent, children)
- else:
- return None
-
-
-def list_flatten(l):
- """
- Flatten a complex nested list of nested lists into a flat list (DFS).
- For example, [ [1, 2], [[[2,3,4], [2,3,4]], [3,4,5, 'hello']]]
- will produce [1, 2, 2, 3, 4, 2, 3, 4, 3, 4, 5, 'hello']
- """
- return list(itertools.chain(*[list_flatten(j) if isinstance(j, list) else [j] for j in l]))
-
-
-def inverted_dict(keys: list, key_val_dict: dict) -> dict:
- """
- Get val -> [keys] mapping for the given keys using key_val_dict
- :param keys: the keys we are interested in (a list)
- :param key_val_dict: the key -> val mapping
- :return: inverted dictionary of val -> [keys] (for the subset dict of given keys)
- """
- res = {}
- all_tuples = ((k, key_val_dict[k] if k in key_val_dict else 'no-parent-' + k) for k in keys)
- for k, v in all_tuples:
- if v in res:
- res[v].append(k)
- else:
- res[v] = [k]
- # making sure to remove duplicate keys
- res = dict((v, list(set(k_list))) for v, k_list in res.items())
- return res