GinsFSM¶
Can you draw your development?
Can you view the behaviour of your application in real time?
With this framework you can!.
GinsFSM is a python library to develop systems based in finite-state machines (FSM). This model is really useful when writing networking and communication applications.
The idea is very simple:
- All objects, called gobj, are instances of a derived ginsfsm.gobj.GObj class.
- The GObj has an inside simple-machine that defines its behavior.
- The communication between gobj‘s happens via event‘s.
Thus, the nature of this system is fully asynchronous and event-driven.
The interface is simple and common to all objects; you just have to change the name of the event and the data they carry.
It includes a full asynchronous http server, wsgi server and winsocket server/client compatible with sockjs.
You can run multiple wsgi applications.
Ginsfsm comes with a variety of scaffolds that you can use to generate a project.
Like Pyramid framework pcreate/pserve commands, Ginsfsm provides the gcreate/gserve commands, to create and run ginsfsm projects.
With gcreate command you can create a ginsfsm project. For example, with multi_pyramid_wsgi scaffold, you will create a multiple wsgi application project, one of wsgi application being a Pyramid wsgi application.
The GObj’s objects are Pyramid “location-aware” resources. Also, the gobj’s are a hierarchical tree, also therefore the use of traversal dispatching are all natural.
Installation¶
You can install the library with easy_install:
easy_install ginsfsm
or with pip:
pip install ginsfsm
Documentation in http://ginsfsm.org/.
Code available in https://bitbucket.org/artgins/ginsfsm
Basic Idea¶
Main classes:
Briefly:
-
Implements a flexible global configuration system, defining a gconfig-template.
-
Implements a simple Finite State Machine, defining a simple-machine.
-
Well, yes, I’m a very simple brain. Only a machine.
But you write a good FSM, and I never fail you:
- derive me,
- write my simple-machine FSM,
- tell the world how they can parameterize me with a gconfig-template,
- and let me run.
Now I can feed my machine receiving external events, and me too can communicate with others gobj‘s sending them events.
-
Me? Well, I’m too a gobj. I’m the root, the grandfather, and I can:
The communication between gobj‘s happens via event‘s.
The nature of this system is fully asynchronous and event-driven.
The interface is simple and common to all objects; you just have to change the name of the event and the data they carry.
Narrative documentation¶
Api documentation¶
About the author¶
This programming style has been my programming style over 20 years of C language development, and now that I’m moving to python, I want to continue with that approach. I’m from Madrid (Spain). My English is very bad, so I would appreciate you telling any mistake you see.
License¶
Copyright (c) 2012-2013, Ginés Martínez Sánchez.
GinsFSM is released under terms of The MIT License <http://www.opensource.org/licenses/mit-license>