#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# generator.py
#
# Copyright 2018 Jelle Smet <development@smetj.net>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
#
from wishbone.module import InputModule
from gevent import sleep
[docs]class Generator(InputModule):
'''
Generates an event at the chosen interval.
The payload can be just about anything including template functions.
Parameters::
- destination(str)("data")
| The location write the payload to
- interval(float)(1)
| The interval in seconds between each generated event.
| A value of 0 means as fast as possible.
- native_events(bool)(False)
| Whether to expect incoming events to be native Wishbone events
- payload(str/dict/int/float)("test")
| The content of the test message.
Queues::
- outbox
| Contains the generated events.
'''
def __init__(self, actor_config, native_events=False,
interval=1, payload="test", destination="data"):
InputModule.__init__(self, actor_config)
self.pool.createQueue("outbox")
def preHook(self):
self.sendToBackground(self.produce)
def produce(self):
while self.loop():
for chunk in [self.kwargs_raw["payload"], None]:
for payload in self.decode(chunk):
event = self.generateEvent(
payload,
self.kwargs.destination
)
self.submit(event, "outbox")
sleep(self.kwargs.interval)
self.logging.info("Stopped producing events.")