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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 | 1x 1x 1x 1x 132x 132x 132x 132x 132x 132x 132x 132x 181x 59x 54x 43x 2x 2x 17x 17x 3x 3x 10x 1x 1x 9x 9x 9x 6x 6x 4x 4x 4x 1x 4x 2x 9x 9x 4x 15x 15x 2x 2x 2x 15x 1x | 'use strict'; const KuzzleError = require('../../KuzzleError'), uuidv4 = require('../../uuidv4'), KuzzleEventEmitter = require('../../eventEmitter'), PendingRequest = require('./pendingRequest'); class AbstractWrapper extends KuzzleEventEmitter { constructor (host, options = {}) { super(); this._pendingRequests = new Map(); this._host = host; this._port = typeof options.port === 'number' ? options.port : 7512; this._ssl = typeof options.sslConnection === 'boolean' ? options.sslConnection : false; this.id = uuidv4(); this.state = 'offline'; Object.keys(options).forEach(opt => { Iif ( Object.prototype.hasOwnProperty.call(this, opt) && Object.getOwnPropertyDescriptor(this, opt).writable ) { this[opt] = options[opt]; } }); } get host () { return this._host; } get port () { return this._port; } get ssl () { return this._ssl; } get connected () { return this.state === 'connected'; } get pendingRequests () { return this._pendingRequests; } /** * @abstract * @returns {Promise<any>} */ connect () { throw new Error('Method "connect" is not implemented'); } /** * @abstract * @param request * @returns {Promise<any>} */ send () { throw new Error('Method "send" is not implemented'); } /** * Called when the client's connection is established */ clientConnected (state, wasConnected) { this.state = state || 'ready'; this.emit(wasConnected && 'reconnect' || 'connect'); } /** * Called when the client's connection is closed */ close () { this.state = 'offline'; this.clear(); } query (request) { if (!this.isReady()) { this.emit('discarded', request); return Promise.reject(new Error(`Unable to execute request: not connected to a Kuzzle server. Discarded request: ${JSON.stringify(request)}`)); } const pending = new PendingRequest(request); this._pendingRequests.set(request.requestId, pending); this.once(request.requestId, response => { this._pendingRequests.delete(request.requestId); if (response.error) { const error = new KuzzleError(response.error); this.emit('queryError', error, request); if (request.action !== 'logout' && error.message === 'Token expired') { this.emit('tokenExpired'); } return pending.reject(error); } pending.resolve(response); }); this.send(request); return pending.promise; } isReady () { return this.state === 'ready'; } /** * Clear pendings requests. * Emits an event for each discarded pending request. */ clear () { const rejectedError = new Error('Network error: request was sent but no response has been received'); for (const pending of this._pendingRequests.values()) { pending.reject(rejectedError); this.removeAllListeners(pending.request.requestId); this.emit('discarded', pending.request); } this._pendingRequests.clear(); } } module.exports = AbstractWrapper; |