mperham

I want to build a system which uses rules. These rules will change hourly (i.e. "this rule is effective from 2pm to 6pm"). The rules must support arbitrarily complex logic on just 2-3 pre-defined variables and result in a boolean:

item.a > 10 && item.b == 0 || item.category == FOOTWEAR

These rules will be executed hundreds of times per second so I can't afford the overhead of plain old eval. I want to reload the current effective ruleset from the database hourly, precompile each rule's logic string and execute it via the quickest method possible. It might look something like this:

class Rule

welshstew

@Grab(group='org.apache.activemq',module = 'activemq-all', version='5.8.0')

import org.apache.activemq.ActiveMQConnectionFactory
import javax.jms.*

def brokerUrl = 'tcp://localhost:61616'
def queue = 'the.soapoverjms.service'
def soapAction = 'urn:sixtree:soapoverjms:dosomething'

def reader = new BufferedReader(new InputStreamReader(System.in))

iamdbc

# file location: /etc/logrotate.d

/home/deploy/app/your-app/shared/log/*.log {
  daily
  missingok
  rotate 14
  compress
  delaycompress
  dateext
  notifempty

r00takaspin

[Unit]
Description=Puma HTTP Server
After=network.target

# Uncomment for socket activation (see below)
# Requires=puma.socket

[Service]
# Foreground process (do not use --daemon in ExecStart or config.rb)
Type=simple