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9e167724 C |
1 | 'use strict' |
2 | ||
3 | const eachLimit = require('async/eachLimit') | |
4 | ||
5a976a8c C |
5 | const constants = require('../../initializers/constants') |
6 | const db = require('../../initializers/database') | |
7 | const logger = require('../../helpers/logger') | |
8 | const requests = require('../../helpers/requests') | |
9e167724 C |
9 | |
10 | module.exports = class BaseRequestScheduler { | |
9e167724 C |
11 | constructor (options) { |
12 | this.lastRequestTimestamp = 0 | |
13 | this.timer = null | |
99fdec46 | 14 | this.requestInterval = constants.REQUESTS_INTERVAL |
9e167724 C |
15 | } |
16 | ||
17 | activate () { | |
18 | logger.info('Requests scheduler activated.') | |
19 | this.lastRequestTimestamp = Date.now() | |
20 | ||
21 | this.timer = setInterval(() => { | |
22 | this.lastRequestTimestamp = Date.now() | |
23 | this.makeRequests() | |
99fdec46 | 24 | }, this.requestInterval) |
9e167724 C |
25 | } |
26 | ||
27 | deactivate () { | |
28 | logger.info('Requests scheduler deactivated.') | |
29 | clearInterval(this.timer) | |
30 | this.timer = null | |
31 | } | |
32 | ||
33 | forceSend () { | |
34 | logger.info('Force requests scheduler sending.') | |
35 | this.makeRequests() | |
36 | } | |
37 | ||
38 | remainingMilliSeconds () { | |
39 | if (this.timer === null) return -1 | |
40 | ||
41 | return constants.REQUESTS_INTERVAL - (Date.now() - this.lastRequestTimestamp) | |
42 | } | |
43 | ||
99fdec46 C |
44 | remainingRequestsCount (callback) { |
45 | return this.getRequestModel().countTotalRequests(callback) | |
46 | } | |
47 | ||
9e167724 C |
48 | // --------------------------------------------------------------------------- |
49 | ||
50 | // Make a requests to friends of a certain type | |
51 | makeRequest (toPod, requestEndpoint, requestsToMake, callback) { | |
52 | if (!callback) callback = function () {} | |
53 | ||
54 | const params = { | |
55 | toPod: toPod, | |
56 | sign: true, // Prove our identity | |
57 | method: 'POST', | |
58 | path: '/api/' + constants.API_VERSION + '/remote/' + requestEndpoint, | |
59 | data: requestsToMake // Requests we need to make | |
60 | } | |
61 | ||
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 }) | |
68 | ||
0dd079da | 69 | return callback(err) |
9e167724 C |
70 | } |
71 | ||
0dd079da | 72 | return callback(null) |
9e167724 C |
73 | }) |
74 | } | |
75 | ||
76 | // Make all the requests of the scheduler | |
77 | makeRequests () { | |
78 | this.getRequestModel().listWithLimitAndRandom(this.limitPods, this.limitPerPod, (err, requests) => { | |
79 | if (err) { | |
80 | logger.error('Cannot get the list of "%s".', this.description, { err: err }) | |
81 | return // Abort | |
82 | } | |
83 | ||
84 | // If there are no requests, abort | |
85 | if (requests.length === 0) { | |
86 | logger.info('No "%s" to make.', this.description) | |
87 | return | |
88 | } | |
89 | ||
90 | // We want to group requests by destinations pod and endpoint | |
91 | const requestsToMakeGrouped = this.buildRequestObjects(requests) | |
92 | ||
93 | logger.info('Making "%s" to friends.', this.description) | |
94 | ||
95 | const goodPods = [] | |
96 | const badPods = [] | |
97 | ||
98 | eachLimit(Object.keys(requestsToMakeGrouped), constants.REQUESTS_IN_PARALLEL, (hashKey, callbackEach) => { | |
99 | const requestToMake = requestsToMakeGrouped[hashKey] | |
100 | const toPod = requestToMake.toPod | |
101 | ||
0dd079da C |
102 | this.makeRequest(toPod, requestToMake.endpoint, requestToMake.datas, (err) => { |
103 | if (err) { | |
9e167724 C |
104 | badPods.push(requestToMake.toPod.id) |
105 | return callbackEach() | |
106 | } | |
107 | ||
108 | logger.debug('Removing requests for pod %s.', requestToMake.toPod.id, { requestsIds: requestToMake.ids }) | |
109 | goodPods.push(requestToMake.toPod.id) | |
110 | ||
111 | // Remove the pod id of these request ids | |
112 | this.getRequestToPodModel().removeByRequestIdsAndPod(requestToMake.ids, requestToMake.toPod.id, callbackEach) | |
113 | ||
114 | this.afterRequestHook() | |
115 | }) | |
116 | }, () => { | |
117 | // All the requests were made, we update the pods score | |
118 | db.Pod.updatePodsScore(goodPods, badPods) | |
119 | ||
120 | this.afterRequestsHook() | |
121 | }) | |
122 | }) | |
123 | } | |
124 | ||
125 | flush (callback) { | |
126 | this.getRequestModel().removeAll(callback) | |
127 | } | |
128 | ||
129 | afterRequestHook () { | |
130 | // Nothing to do, let children reimplement it | |
131 | } | |
132 | ||
133 | afterRequestsHook () { | |
134 | // Nothing to do, let children reimplement it | |
135 | } | |
136 | } |