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4 |
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5 | import { Storage, StoreItems, StoreItem } from 'botbuilder'
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6 | import * as Redis from 'redis'
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7 | import { CLDebug } from './CLDebug';
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8 |
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9 |
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10 | export interface RedisStorageSettings {
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11 |
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12 | server: string
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13 |
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14 |
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15 | key: string
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16 |
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17 |
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18 | port?: number
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19 | }
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20 |
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21 | export class RedisStorage implements Storage {
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22 | private redisClient: Redis.RedisClient
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23 | private _get: (...args: any[]) => Promise<any>
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24 | private _set: (...args: any[]) => Promise<any>
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25 | private _del: (...args: any[]) => Promise<any>
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26 |
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27 | constructor(settings: RedisStorageSettings) {
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28 |
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29 | this.redisClient = Redis.createClient(settings.port ? settings.port : 6380, settings.server, {
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30 | auth_pass: settings.key,
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31 | tls: { servername: settings.server }
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32 | })
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33 |
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34 | this.redisClient.on('error', (err) => {
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35 | CLDebug.Error(err, "RedisStorage")
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36 | })
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37 |
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38 | this._get = this.promisify(this.redisClient.get)
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39 | this._set = this.promisify(this.redisClient.set)
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40 | this._del = this.promisify(this.redisClient.del)
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41 | }
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42 |
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43 | |
44 |
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45 |
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46 |
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47 |
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48 | public async read(keys: string[]): Promise<StoreItems> {
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49 | let storeItems: StoreItems = {}
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50 |
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51 |
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52 | for (let iKey in keys) {
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53 | let key = keys[iKey]
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54 | let storeItem = await this._get(key)
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55 | storeItems[key] = JSON.parse(storeItem)
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56 | }
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57 | return storeItems
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58 | }
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59 |
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60 | |
61 |
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62 |
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63 |
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64 |
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65 | public async write(changes: StoreItems): Promise<void> {
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66 | for (let key in changes) {
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67 | let storeItem: StoreItem = changes[key]
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68 | await this._set(key, JSON.stringify(storeItem))
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69 | }
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70 | }
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71 |
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72 | |
73 |
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74 |
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75 |
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76 |
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77 | public async delete(keys: string[]) {
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78 | for (let iKey in keys) {
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79 | let key = keys[iKey]
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80 | await this._del(key)
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81 | }
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82 | }
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83 |
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84 | private promisify(func: Function) {
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85 | return (...args: any[]) =>
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86 | new Promise<any>((resolve, reject) => {
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87 | const callback = (err: any, data: any) => (err ? reject(err) : resolve(data))
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88 |
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89 | func.apply(this.redisClient, [...args, callback])
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90 | })
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91 | }
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92 | }
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93 |
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\ | No newline at end of file |