delta/openstack/taskflow.git/taskflow/flow.py, branch 2.9.0

Allow for alterations in decider 'area of influence'

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

Christmas came early.

Closes-Bug: #1479466

Change-Id: I931d826690c925f022dbfffe9afb7bf41345b1d0

For taskflow patterns don't show taskflow.patterns prefix

2016-01-05T23:38:43+00:00

Showing the full name in flow __str__() isn't expecially
helpful and clutters up graphviz usage and similar so if a taskflow
built-in pattern is stringified just use the short name (that does
not start with taskflow.patterns instead of the full long name).

Change-Id: Icd8c26eab1e19d6ecf9c4e8e82e6d6902ce5b6ea

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

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

Update Flow::str

2015-02-17T22:18:57+00:00

The current implementation seems a little cryptic so updating it
to clearly indicate the atom count.

Change-Id: I4f97e458a4b80e33b3d6348a3ef632398586ed47

Switch to using 'oslo_utils' vs 'oslo.utils'

2015-01-15T07:56:11+00:00

Prefer the non-deprecated 'oslo_utils' instead of
the namespaced 'oslo.utils' wherever it was previously
used.

Change-Id: I9a78150ef5266e1ff22147278162fe3cfe1b2e3f

Move over to using oslo.utils [reflection, uuidutils]

2014-12-18T21:55:41+00:00

The reflection module is now part of oslo.utils so we should
remove our local version and use that version instead; this
also goes for the uuidutils module which is now part of
oslo.utils as well so we no longer need our local version
copied from the incubator...

Note that one reflection method `find_subclasses` which was to
specific to taskflow is now moved to the misc utility module
instead of its prior home in the reflection module.

Change-Id: I069881c80b0b2916cc0c414992b80171f7eeb79f

Use constants for link metadata keys

2014-10-18T20:24:12+00:00

Instead of using strings (which can be easy to
mistype and get wrong), provide a set of constants
that can be used to attach and use these keys in
flows and at compilation.

This also helps make it more clear what the keys
do and where they are used.

Change-Id: I5283b27617961136a4582bbcfce4617f05e8dd1d

Be smarter about required flow symbols

2014-09-08T19:14:51+00:00

Instead of blindly assuming all the symbols that
are provided automatically work for all flows even
if the flow has ordering constraints we should set
the base flow class requires property to be abstract
and provide flow specific properties that can do the
appropriate analysis to determine what the flows
unsatisfied symbol requirements actually are.

Part of blueprint taskflow-improved-scoping

Change-Id: Ie149c05b3305c5bfff9d9f2c05e7e064c3a6d0c7

Upgrade hacking version and fix some of the issues

2014-06-14T02:27:17+00:00

Update hacking to the new requirements version and
fix about half of the new reported issues. The other
hacking issues are for now ignored until fixed by
adjusting our tox.ini file.

This commit fixes the following new hacking errors:

H405 - multi line docstring summary not separated
       with an empty line
E265 - block comment should start with '# '
F402 - import 'endpoint' from line 21 shadowed by
       loop variable

Change-Id: I6bae61591fb988cc17fa79e21cb5f1508d22781c