delta/openstack/taskflow.git/taskflow/patterns/unordered_flow.py, branch 0.6.0

Relax the unordered flow symbol constraints

2014-09-08T20:55:41+00:00

In order to make it possible to have a symbol
tree we need to relax and remove the constraints
that are being imposed by the unordered constraints
and later move those constraint checks and validations
into the engines compilation stage.

Part of blueprint taskflow-improved-scoping

Change-Id: I80718b4bc01fbf0dce6a95cd2fac7e6e2e1814d1

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

Put provides and requires code to basic Flow

2014-05-07T07:17:50+00:00

Code that calculates provides and requires for flow is almost
identical for all patterns, so this change makes it completely
identical and puts it to the base class. Other patterns are
still allowed to override these properties for sake of customization
or optimization.

Change-Id: I6e875e863047b5287ec727fc9a491f252f144ecf

Fix spelling mistake

2014-03-26T23:23:34+00:00

Change-Id: Ic3ae069565f0f9e25f243eead105e1b97fe437fc

Adjust the exception hierachy

2014-03-25T03:42:30+00:00

Group the exceptions into the following groups
  * Storage
  * Jobs
  * Execution
  * Other (wrapped failure here)

This grouping makes it easier to understand where
one type of exception should be used vs using another
type of exception.

Backwards incompatible changes:
  * StorageError -> StorageFailure
  * AlreadyExists -> Duplicate
  * WrappedFailure now inherits from Exception
    and not directly from TaskFlowException since it
    wraps arbitrary other exceptions and is not
    specific to taskflow.

Cleanups:
  * JobNotFound -> NotFound
  * EmptyFlow -> Empty
  * JobAlreadyExists -> AlreadyExists
  * InvariantViolation (X)
  * ConnectionFailure (X)

Change-Id: I0e1e81b513fbbc7adb8bfaa1244993e345ab70d3

Iteration over links in flow interface

2014-03-21T07:11:15+00:00

In addition to iteration over its children (atoms or subflows) each
pattern now provides iter_links() method that iterates over
dependency links. This allows engines to treat all patterns
in the same way instead knowing what structure each pattern expresses.

Change-Id: I52cb5b0b501eefc8eb56a9ef5303aeb318013e11

Add retry to Flow patterns

2014-03-14T09:49:10+00:00

Implement dependency checks when adding items to flows:
- retry can't be depended on tasks from it's subflow.
- retry can't provide same values as tasks or other retries

Change-Id: Iffa8e673fd2de39407ae22cd38ad523d484cbba7

Remove extra quote symbol

2014-03-13T08:30:21+00:00

Three quotes is just enough to open multiline string literal.

Change-Id: I15d489f1a76be81a05b2378ef35120ee84d5eb04

Remove extraneous vim configuration comments

2014-02-14T08:56:50+00:00

Remove line containing

comment - # vim: tabstop=4 shiftwidth=4 softtabstop=4

Change-Id: I7581cc88b8de433d5609ed06c6570b0b45c13573
Closes-Bug:#1229324

Doc strings and comments clean-up

2014-01-26T21:08:39+00:00

* Added missing period for doc strings
* Correct syntax errors
* Remove H402 from flake8 ignore list

Change-Id: Ia8592bf99378e3658d6cca2ceb148bf9eb0b5de8