Nyimbi Odero nyimbi

Workflows (States) in Django

I'm going to cover a simple, but effective, utility for managing state and transitions (aka workflow). We often need to store the state (status) of a model and it should only be in one state at a time.

Common Software Uses

Publishing (Draft->Approved->Published->Expired->Deleted)

Finite State Machine Generator

Tested using: Python 2.6.1 (r261:67515, Jul 7 2009, 23:51:51) [GCC 4.2.1 (Apple Inc. build 5646)] on darwin

Mac OS X 10.6.2

Creation

	Aerobase	Keycloak	WSO2 Identity Server	Gluu	CAS	OpenAM	Shibboleth IdP
OpenID Connect/OAuth support	yes	yes	yes	yes	yes	yes	third-party
Multi-factor authentication	yes	yes	yes	yes	yes	yes	yes
Admin UI	yes	yes	yes	yes	yes	yes	no
OpenJDK support	yes	yes	yes			yes	no
Identity brokering	yes	yes	yes
Middleware	NGINX, Wildfly	Wildfly, JBOSS	WSO2 Carbon	Jetty, Apache HTTPD	any Java app server	any Java app server	Jetty, Tomc

The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync (Everyone seems to like -z, but it is much slower for me)

a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.
H: preserves hard-links
A: preserves ACLs

Create and mount RAM disk

mkdir -p /tmp/build
sudo mount -t tmpfs -o size=512M tmpfs /tmp/build

Unmount RAM disk

sudo umount /tmp/build

	Most remember Pieter Hintjens for his messaging protocols. I don't know anything about that,
	but I credit him with rekindling my love of programming in general, Lisp and functional programming
	in one fell swoop about 17 years ago.

	He did this by writing 'Libero', a mid-90's C program that took an ASCII diagram of a state machine
	and produced code that ran that machine in a remarkable number of languages including 'sh', 'python',
	'C' and many more. Some of them are listed on the original page (https://imatix-legacy.github.io/libero/).
	I discovered in the early 00's and it fascinated me because was a unique combination of code generation
	and what is now called purely functional programming.

	crontab: command used to schedule and run tasks in the background at defined regular intervals.

	Format:
	* * * * * *
	( MIN HOUR DOM MON DOW CMD )

	where:

	MIN- minute -0-59

	1. `vim /etc/syslog.conf`
	2. Add to end of file: `cron.* /var/log/cron.log`
	3.
	```
	sudo launchctl unload /System/Library/LaunchDaemons/com.apple.syslogd.plist
	sudo launchctl load /System/Library/LaunchDaemons/com.apple.syslogd.plist
	```

	[where-is-the-cron-log-file-in-macosx-lion](http://apple.stackexchange.com/questions/38861/where-is-the-cron-log-file-in-macosx-lion)

	import ast
	import contextlib
	import json
	import os
	import string
	from collections import OrderedDict
	from enum import Enum
	from numbers import Number
	from string import Template

	import re
	import sys
	import json
	from wikipedia2vec import Wikipedia2Vec

	ev = Wikipedia2Vec.load("./enwiki_20180420_100d.pkl")

	regex = r'\[\[(.+?)\]\]'
	regex_first = r"'''(.+?)'''"
	regex_title = r'<title>(.+?)</title>'