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'use strict'
const constants = require('../initializers/constants')
const BaseRequestScheduler = require('./base-request-scheduler')
const db = require('../initializers/database')
const logger = require('../helpers/logger')
module.exports = class RequestScheduler extends BaseRequestScheduler {
constructor () {
super()
// We limit the size of the requests
this.limitPods = constants.REQUESTS_LIMIT_PODS
this.limitPerPod = constants.REQUESTS_LIMIT_PER_POD
this.description = 'requests'
}
getRequestModel () {
return db.Request
}
getRequestToPodModel () {
return db.RequestToPod
}
buildRequestObjects (requests) {
const requestsToMakeGrouped = {}
Object.keys(requests).forEach(toPodId => {
requests[toPodId].forEach(data => {
const request = data.request
const pod = data.pod
const hashKey = toPodId + request.endpoint
if (!requestsToMakeGrouped[hashKey]) {
requestsToMakeGrouped[hashKey] = {
toPod: pod,
endpoint: request.endpoint,
ids: [], // request ids, to delete them from the DB in the future
datas: [] // requests data,
}
}
requestsToMakeGrouped[hashKey].ids.push(request.id)
requestsToMakeGrouped[hashKey].datas.push(request.request)
})
})
return requestsToMakeGrouped
}
// { type, endpoint, data, toIds, transaction }
createRequest (options, callback) {
const type = options.type
const endpoint = options.endpoint
const data = options.data
const toIds = options.toIds
const transaction = options.transaction
const pods = []
// If there are no destination pods abort
if (toIds.length === 0) return callback(null)
toIds.forEach(toPod => {
pods.push(db.Pod.build({ id: toPod }))
})
const createQuery = {
endpoint,
request: {
type: type,
data: data
}
}
const dbRequestOptions = {
transaction
}
return db.Request.create(createQuery, dbRequestOptions).asCallback((err, request) => {
if (err) return callback(err)
return request.setPods(pods, dbRequestOptions).asCallback(callback)
})
}
// ---------------------------------------------------------------------------
afterRequestsHook () {
// Flush requests with no pod
this.getRequestModel().removeWithEmptyTo(err => {
if (err) logger.error('Error when removing requests with no pods.', { error: err })
})
}
}
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