Pulse 0.1.2

Simple scheduling WSGI middleware

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LICENSE TYPE:
MIT/X Consortium License 
USER RATING:
UNRATED
  0.0/5
DEVELOPED BY:
Sam Rayment
HOMEPAGE:
pypi.python.org
CATEGORY:
ROOT \ Internet \ HTTP (WWW)
Pulse is a Python module that acts as a WSGI scheduling engine, the middleware can be configured to request web contexts at given intervals.  A user may then, within their application, configure the web contexts to perform scheduled tasks e.g. maintainence.

The middleware for pulse is provided in pulse.middleware:PulseMiddleware and a paste filter_app_factory is also provided.

Configuration:

Pulse can be configured in two ways. The Middleware takes keyword configuration arguments when constructed,or alternatively a config dictionary allowing it to be configured by paste. If using pastes the pulse configuration options take the form of:

pulse.config.$configoption.

Currently only one configuration option is supported:

* context - This is the base web context that tasks are sent to, tasks are dispatched to /$context/$action, unless action is an absolute path.

Tasks:

Each task defines at an interval and a web context, pulse will request the specified web context every interval seconds.

Creating A Task:

A new task is created by specifying configuration options, each option takes the form:

pulse.task.$taskname.$option

The following task configuration options are available:

* interval - The interval between task dispatching.
* action - The action to dispatch to: see pulse.config.context

Tasks can also be programmatically configured by passing a dictionary of into  PulseMiddleware's task keyword argument.

Example:


To request the following context '/sessions/cleanup' every 5 minutes, the following paste configuration could be used:

pulse.config.context = sessions

pulse.task.cleanup.action = cleanup
pulse.task.cleanup.interval = 300

Last updated on August 3rd, 2009

requirements

#WSGI middleware #WSGI scheduling #WSGI #middleware #scheduling #Python

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