3 const eachLimit = require('async/eachLimit')
5 const constants = require('../initializers/constants')
6 const db = require('../initializers/database')
7 const logger = require('../helpers/logger')
8 const requests = require('../helpers/requests')
10 module.exports = class BaseRequestScheduler {
11 constructor (options) {
12 this.lastRequestTimestamp = 0
14 this.requestInterval = constants.REQUESTS_INTERVAL
18 logger.info('Requests scheduler activated.')
19 this.lastRequestTimestamp = Date.now()
21 this.timer = setInterval(() => {
22 this.lastRequestTimestamp = Date.now()
24 }, this.requestInterval)
28 logger.info('Requests scheduler deactivated.')
29 clearInterval(this.timer)
34 logger.info('Force requests scheduler sending.')
38 remainingMilliSeconds () {
39 if (this.timer === null) return -1
41 return constants.REQUESTS_INTERVAL - (Date.now() - this.lastRequestTimestamp)
44 remainingRequestsCount (callback) {
45 return this.getRequestModel().countTotalRequests(callback)
48 // ---------------------------------------------------------------------------
50 // Make a requests to friends of a certain type
51 makeRequest (toPod, requestEndpoint, requestsToMake, callback) {
52 if (!callback) callback = function () {}
56 sign: true, // Prove our identity
58 path: '/api/' + constants.API_VERSION + '/remote/' + requestEndpoint,
59 data: requestsToMake // Requests we need to make
62 // Make multiple retry requests to all of pods
63 // The function fire some useful callbacks
64 requests.makeSecureRequest(params, (err, res) => {
65 if (err || (res.statusCode !== 200 && res.statusCode !== 201 && res.statusCode !== 204)) {
66 err = err ? err.message : 'Status code not 20x : ' + res.statusCode
67 logger.error('Error sending secure request to %s pod.', toPod.host, { error: err })
69 return callback(false)
76 // Make all the requests of the scheduler
78 this.getRequestModel().listWithLimitAndRandom(this.limitPods, this.limitPerPod, (err, requests) => {
80 logger.error('Cannot get the list of "%s".', this.description, { err: err })
84 // If there are no requests, abort
85 if (requests.length === 0) {
86 logger.info('No "%s" to make.', this.description)
90 // We want to group requests by destinations pod and endpoint
91 const requestsToMakeGrouped = this.buildRequestObjects(requests)
93 logger.info('Making "%s" to friends.', this.description)
98 eachLimit(Object.keys(requestsToMakeGrouped), constants.REQUESTS_IN_PARALLEL, (hashKey, callbackEach) => {
99 const requestToMake = requestsToMakeGrouped[hashKey]
100 const toPod = requestToMake.toPod
102 this.makeRequest(toPod, requestToMake.endpoint, requestToMake.datas, (success) => {
103 if (success === false) {
104 badPods.push(requestToMake.toPod.id)
105 return callbackEach()
108 logger.debug('Removing requests for pod %s.', requestToMake.toPod.id, { requestsIds: requestToMake.ids })
109 goodPods.push(requestToMake.toPod.id)
111 // Remove the pod id of these request ids
112 this.getRequestToPodModel().removeByRequestIdsAndPod(requestToMake.ids, requestToMake.toPod.id, callbackEach)
114 this.afterRequestHook()
117 // All the requests were made, we update the pods score
118 db.Pod.updatePodsScore(goodPods, badPods)
120 this.afterRequestsHook()
126 this.getRequestModel().removeAll(callback)
129 afterRequestHook () {
130 // Nothing to do, let children reimplement it
133 afterRequestsHook () {
134 // Nothing to do, let children reimplement it