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 {
12 constructor (options) {
13 this.lastRequestTimestamp = 0
15 this.requestInterval = constants.REQUESTS_INTERVAL
19 logger.info('Requests scheduler activated.')
20 this.lastRequestTimestamp = Date.now()
22 this.timer = setInterval(() => {
23 this.lastRequestTimestamp = Date.now()
25 }, this.requestInterval)
29 logger.info('Requests scheduler deactivated.')
30 clearInterval(this.timer)
35 logger.info('Force requests scheduler sending.')
39 remainingMilliSeconds () {
40 if (this.timer === null) return -1
42 return constants.REQUESTS_INTERVAL - (Date.now() - this.lastRequestTimestamp)
45 remainingRequestsCount (callback) {
46 return this.getRequestModel().countTotalRequests(callback)
49 // ---------------------------------------------------------------------------
51 // Make a requests to friends of a certain type
52 makeRequest (toPod, requestEndpoint, requestsToMake, callback) {
53 if (!callback) callback = function () {}
57 sign: true, // Prove our identity
59 path: '/api/' + constants.API_VERSION + '/remote/' + requestEndpoint,
60 data: requestsToMake // Requests we need to make
63 // Make multiple retry requests to all of pods
64 // The function fire some useful callbacks
65 requests.makeSecureRequest(params, (err, res) => {
66 if (err || (res.statusCode !== 200 && res.statusCode !== 201 && res.statusCode !== 204)) {
67 err = err ? err.message : 'Status code not 20x : ' + res.statusCode
68 logger.error('Error sending secure request to %s pod.', toPod.host, { error: err })
70 return callback(false)
77 // Make all the requests of the scheduler
79 this.getRequestModel().listWithLimitAndRandom(this.limitPods, this.limitPerPod, (err, requests) => {
81 logger.error('Cannot get the list of "%s".', this.description, { err: err })
85 // If there are no requests, abort
86 if (requests.length === 0) {
87 logger.info('No "%s" to make.', this.description)
91 // We want to group requests by destinations pod and endpoint
92 const requestsToMakeGrouped = this.buildRequestObjects(requests)
94 logger.info('Making "%s" to friends.', this.description)
99 eachLimit(Object.keys(requestsToMakeGrouped), constants.REQUESTS_IN_PARALLEL, (hashKey, callbackEach) => {
100 const requestToMake = requestsToMakeGrouped[hashKey]
101 const toPod = requestToMake.toPod
103 this.makeRequest(toPod, requestToMake.endpoint, requestToMake.datas, (success) => {
104 if (success === false) {
105 badPods.push(requestToMake.toPod.id)
106 return callbackEach()
109 logger.debug('Removing requests for pod %s.', requestToMake.toPod.id, { requestsIds: requestToMake.ids })
110 goodPods.push(requestToMake.toPod.id)
112 // Remove the pod id of these request ids
113 this.getRequestToPodModel().removeByRequestIdsAndPod(requestToMake.ids, requestToMake.toPod.id, callbackEach)
115 this.afterRequestHook()
118 // All the requests were made, we update the pods score
119 db.Pod.updatePodsScore(goodPods, badPods)
121 this.afterRequestsHook()
127 this.getRequestModel().removeAll(callback)
130 afterRequestHook () {
131 // Nothing to do, let children reimplement it
134 afterRequestsHook () {
135 // Nothing to do, let children reimplement it