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OpenSTF/lib/units/groups-engine/index.js
2019-06-12 10:29:07 +02:00

115 lines
3.4 KiB
JavaScript

/**
* Copyright © 2019 code initially contributed by Orange SA, authors: Denis Barbaron - Licensed under the Apache license 2.0
**/
const events = require('events')
const Promise = require('bluebird')
const logger = require('../../util/logger')
const zmqutil = require('../../util/zmqutil')
const srv = require('../../util/srv')
const lifecycle = require('../../util/lifecycle')
const wireutil = require('../../wire/util')
const groupsScheduler = require('./scheduler')
const groupsWatcher = require('./watchers/groups')
const devicesWatcher = require('./watchers/devices')
const usersWatcher = require('./watchers/users')
module.exports = function(options) {
const log = logger.createLogger('groups-engine')
const channelRouter = new events.EventEmitter()
const push = zmqutil.socket('push')
Promise.map(options.endpoints.push, function(endpoint) {
return srv.resolve(endpoint).then(function(records) {
return srv.attempt(records, function(record) {
log.info('Sending output to "%s"', record.url)
push.connect(record.url)
return Promise.resolve(true)
})
})
})
.catch(function(err) {
log.fatal('Unable to connect to push endpoint', err)
lifecycle.fatal()
})
// Input
const sub = zmqutil.socket('sub')
Promise.map(options.endpoints.sub, function(endpoint) {
return srv.resolve(endpoint).then(function(records) {
return srv.attempt(records, function(record) {
log.info('Receiving input from "%s"', record.url)
sub.connect(record.url)
return Promise.resolve(true)
})
})
})
.catch(function(err) {
log.fatal('Unable to connect to sub endpoint', err)
lifecycle.fatal()
})
const pushdev = zmqutil.socket('push')
Promise.map(options.endpoints.pushdev, function(endpoint) {
return srv.resolve(endpoint).then(function(records) {
return srv.attempt(records, function(record) {
log.info('Sending output to "%s"', record.url)
pushdev.connect(record.url)
return Promise.resolve(true)
})
})
})
.catch(function(err) {
log.fatal('Unable to connect to pushdev endpoint', err)
lifecycle.fatal()
})
const subdev = zmqutil.socket('sub')
Promise.map(options.endpoints.subdev, function(endpoint) {
return srv.resolve(endpoint).then(function(records) {
return srv.attempt(records, function(record) {
log.info('Receiving input from "%s"', record.url)
subdev.connect(record.url)
return Promise.resolve(true)
})
})
})
.catch(function(err) {
log.fatal('Unable to connect to subdev endpoint', err)
lifecycle.fatal()
})
// Establish always-on channels
;[wireutil.global].forEach(function(channel) {
log.info('Subscribing to permanent channel "%s"', channel)
sub.subscribe(channel)
subdev.subscribe(channel)
})
sub.on('message', function(channel, data) {
channelRouter.emit(channel.toString(), channel, data)
})
subdev.on('message', function(channel, data) {
channelRouter.emit(channel.toString(), channel, data)
})
groupsScheduler()
groupsWatcher(push, pushdev, channelRouter)
devicesWatcher(push, pushdev, channelRouter)
usersWatcher(pushdev)
lifecycle.observe(function() {
[push, sub, pushdev, subdev].forEach(function(sock) {
try {
sock.close()
}
catch (err) {
// No-op
}
})
})
log.info('Groups engine started')
}