delta/openstack/taskflow.git/taskflow/patterns, branch master

Remove six

2022-05-18T07:12:37+00:00

This library no longer supports Python 2, thus usage of six can be
removed. This also removes workaround about pickle library used in
Python 2 only.

Change-Id: I19d298cf0f402d65f0b142dea0bf35cf992332a9

Update TaskFlow for networkx 2.x

2019-10-19T01:11:44+00:00

The networkx 2.x series has been out for two years now and supports
python 3.6 and greater[1]. This patch updates TaskFlow to require
a minimum of networkx 2.1. It also updates the code to support
recent deprecation expiration introduced in the 2.4 release.

[1] https://networkx.github.io/documentation/stable/news.html

Change-Id: Ife31d353ba80824ebc63c8b21ee90943badc8da3

Fix code to support networkx > 1.0

2018-07-11T11:11:51+00:00

With the release of NetworkX 2.0 the reporting API was
moved to view/iterator model. Many methods were moved from
reporting lists or dicts to iterating over the information.
Methods that used to return containers now return views and
methods that returned iterators have been removed in networkx.
Because of this change in NetworkX 2.0 , taskflow code
have to be changed also to support networkx > 2.0

Change-Id: I23c226f37bd85c1e38039fbcb302a2d0de49f333
Closes-Bug: #1778115

Fix some misspellings in the function name and descriptions

2016-06-30T15:44:49+00:00

Change-Id: I7e3451feb94b1f25b00c5e7b197bb6b527548306

Allow for alterations in decider 'area of influence'

2016-01-10T06:42:17+00:00

Christmas came early.

Closes-Bug: #1479466

Change-Id: I931d826690c925f022dbfffe9afb7bf41345b1d0

Use graphs as the underlying structure of patterns

2015-09-18T17:39:04+00:00

This unifies all the patterns to be graph based so
that they are more uniform and there underlying constraints
are more easy to understand (taskflow basically processes
graphs).

Change-Id: Ib2ab07c1c87165cf40a06508128010887f658391

iter_nodes method added to flows

2015-08-28T14:54:25+00:00

New method allows to iterate over flow node and
get access to node metadata during iteration.

Change-Id: Ib0fc77f0597961602fbc3b49ba09e4df815d8230

Improve docstrings in graph flow to denote exceptions raised

2015-08-06T00:36:44+00:00

Link the existing exceptions mentioned to there sphinx doc about
them and also adds a section about when the 'DependencyFailure'
exception is raised.

Also tweaks the class docstring a little, to make it easier to
understand.

Change-Id: Ie4b989444c5ad73660cc61c0c3b2b1702b669087

Add docs for u, v, decider on graph flow link method

2015-07-10T21:18:25+00:00

The docstring is now quite important to know what the
params are (they are no longer as obvious due to the
decider addition) so add a useful docstring to that
method.

This also fixes how the targeted flow add was not passing
allow **kwargs as it should have been and removes the
duplicated docstrings that are in the child class (the
parent class docstrings are just fine).

Change-Id: Idacb7ee9f652fab4bdc762c1b49d7523e46e9a7b

Add support for conditional execution

2015-07-01T06:04:31+00:00

To make it possible to alter the runtime flow via a simple
conditional like structure make it possible to have the graph
flow link function take a decider that is expected to be some
callable that will decide (via a boolean return) whether the
edge should actually be traversed when running. When a decider
returns false; the affected + successors will be set into the
IGNORE state and they will be exempt from future runtime and
scheduling decisions.

Part of blueprint taskflow-conditional-execution

Change-Id: Iab0ee46f86d6b8e747911174d54a7295b3fa404d