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@ -1,6 +1,6 @@
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const _ = require('lodash')
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const _ = require('lodash')
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const AWS = require('aws-sdk')
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const AWS = require('aws-sdk')
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const { pipeline } = require('stream')
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const { pipeline, Transform } = require('stream')
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module.exports = {
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module.exports = {
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async activate() {
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async activate() {
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@ -20,6 +20,13 @@ module.exports = {
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secretAccessKey: this.config.secretAccessKey,
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secretAccessKey: this.config.secretAccessKey,
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region: this.config.region
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region: this.config.region
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})
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})
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this.clientDomain = new AWS.CloudSearchDomain({
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apiVersion: '2013-01-01',
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endpoint: this.config.endpoint,
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accessKeyId: this.config.accessKeyId,
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secretAccessKey: this.config.secretAccessKey,
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region: this.config.region
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})
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let rebuildIndex = false
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let rebuildIndex = false
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@ -141,10 +148,30 @@ module.exports = {
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*/
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*/
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async query(q, opts) {
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async query(q, opts) {
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try {
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try {
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let suggestions = []
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const results = await this.clientDomain.search({
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query: q,
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partial: true,
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size: 50
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}).promise()
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if (results.hits.found < 5) {
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const suggestResults = await this.clientDomain.suggest({
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query: q,
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suggester: 'default_suggester',
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size: 5
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}).promise()
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suggestions = suggestResults.suggest.suggestions.map(s => s.suggestion)
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}
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return {
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return {
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results: [],
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results: _.map(results.hits.hit, r => ({
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suggestions: [],
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id: r.id,
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totalHits: 0
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path: _.head(r.fields.path),
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locale: _.head(r.fields.locale),
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title: _.head(r.fields.title),
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description: _.head(r.fields.description)
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})),
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suggestions: suggestions,
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totalHits: results.hits.found
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}
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}
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} catch (err) {
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} catch (err) {
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WIKI.logger.warn('Search Engine Error:')
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WIKI.logger.warn('Search Engine Error:')
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@ -157,16 +184,22 @@ module.exports = {
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* @param {Object} page Page to create
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* @param {Object} page Page to create
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*/
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*/
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async created(page) {
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async created(page) {
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await this.client.indexes.use(this.config.indexName).index([
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await this.clientDomain.uploadDocuments({
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{
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contentType: 'application/json',
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id: page.hash,
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documents: JSON.stringify([
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locale: page.localeCode,
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{
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path: page.path,
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type: 'add',
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title: page.title,
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id: page.hash,
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description: page.description,
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fields: {
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content: page.content
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locale: page.localeCode,
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}
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path: page.path,
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])
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title: page.title,
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description: page.description,
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content: page.content
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}
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}
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])
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}).promise()
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},
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},
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/**
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/**
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* UPDATE
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* UPDATE
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@ -174,16 +207,22 @@ module.exports = {
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* @param {Object} page Page to update
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* @param {Object} page Page to update
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*/
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*/
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async updated(page) {
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async updated(page) {
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await this.client.indexes.use(this.config.indexName).index([
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await this.clientDomain.uploadDocuments({
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{
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contentType: 'application/json',
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id: page.hash,
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documents: JSON.stringify([
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locale: page.localeCode,
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{
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path: page.path,
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type: 'add',
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title: page.title,
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id: page.hash,
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description: page.description,
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fields: {
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content: page.content
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locale: page.localeCode,
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}
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path: page.path,
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])
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title: page.title,
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description: page.description,
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content: page.content
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}
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}
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])
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}).promise()
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},
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},
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/**
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/**
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* DELETE
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* DELETE
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@ -191,12 +230,15 @@ module.exports = {
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* @param {Object} page Page to delete
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* @param {Object} page Page to delete
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*/
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*/
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async deleted(page) {
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async deleted(page) {
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await this.client.indexes.use(this.config.indexName).index([
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await this.clientDomain.uploadDocuments({
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{
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contentType: 'application/json',
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'@search.action': 'delete',
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documents: JSON.stringify([
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id: page.hash
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{
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}
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type: 'delete',
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])
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id: page.hash
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}
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])
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}).promise()
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},
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},
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/**
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/**
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* RENAME
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* RENAME
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@ -204,33 +246,122 @@ module.exports = {
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* @param {Object} page Page to rename
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* @param {Object} page Page to rename
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*/
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*/
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async renamed(page) {
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async renamed(page) {
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await this.client.indexes.use(this.config.indexName).index([
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await this.clientDomain.uploadDocuments({
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{
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contentType: 'application/json',
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'@search.action': 'delete',
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documents: JSON.stringify([
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id: page.sourceHash
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{
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}
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type: 'delete',
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])
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id: page.sourceHash
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await this.client.indexes.use(this.config.indexName).index([
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}
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{
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])
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id: page.destinationHash,
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}).promise()
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locale: page.localeCode,
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await this.clientDomain.uploadDocuments({
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path: page.destinationPath,
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contentType: 'application/json',
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title: page.title,
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documents: JSON.stringify([
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description: page.description,
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{
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content: page.content
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type: 'add',
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}
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id: page.destinationHash,
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])
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fields: {
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locale: page.localeCode,
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path: page.destinationPath,
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title: page.title,
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description: page.description,
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content: page.content
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}
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}
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])
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}).promise()
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},
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},
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/**
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/**
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* REBUILD INDEX
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* REBUILD INDEX
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*/
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*/
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async rebuild() {
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async rebuild() {
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WIKI.logger.info(`(SEARCH/AWS) Rebuilding Index...`)
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const MAX_DOCUMENT_BYTES = Math.pow(2, 20)
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const MAX_INDEXING_BYTES = 5 * Math.pow(2, 20) - Buffer.from('[').byteLength - Buffer.from(']').byteLength
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const MAX_INDEXING_COUNT = 1000
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const COMMA_BYTES = Buffer.from(',').byteLength
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let chunks = []
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let bytes = 0
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const processDocument = async (cb, doc) => {
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try {
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if (doc) {
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const docBytes = Buffer.from(JSON.stringify(doc)).byteLength
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// -> Document too large
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if (docBytes >= MAX_DOCUMENT_BYTES) {
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throw new Error('Document exceeds maximum size allowed by AWS CloudSearch.')
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}
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// -> Current batch exceeds size hard limit, flush
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if (docBytes + COMMA_BYTES + bytes >= MAX_INDEXING_BYTES) {
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await flushBuffer()
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}
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if (chunks.length > 0) {
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bytes += COMMA_BYTES
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}
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bytes += docBytes
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chunks.push(doc)
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// -> Current batch exceeds count soft limit, flush
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if (chunks.length >= MAX_INDEXING_COUNT) {
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await flushBuffer()
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}
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} else {
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// -> End of stream, flush
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await flushBuffer()
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}
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cb()
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} catch (err) {
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cb(err)
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}
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}
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const flushBuffer = async () => {
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WIKI.logger.info(`(SEARCH/AWS) Sending batch of ${chunks.length}...`)
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try {
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const resp = await this.clientDomain.uploadDocuments({
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contentType: 'application/json',
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documents: JSON.stringify(_.map(chunks, doc => ({
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type: 'add',
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id: doc.id,
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fields: {
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locale: doc.locale,
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path: doc.path,
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title: doc.title,
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description: doc.description,
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content: doc.content
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}
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})))
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}).promise()
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} catch (err) {
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WIKI.logger.warn('(SEARCH/AWS) Failed to send batch to AWS CloudSearch: ', err)
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}
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chunks.length = 0
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bytes = 0
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}
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await pipeline(
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await pipeline(
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WIKI.models.knex.column({ id: 'hash' }, 'path', { locale: 'localeCode' }, 'title', 'description', 'content').select().from('pages').where({
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WIKI.models.knex.column({ id: 'hash' }, 'path', { locale: 'localeCode' }, 'title', 'description', 'content').select().from('pages').where({
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isPublished: true,
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isPublished: true,
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isPrivate: false
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isPrivate: false
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}).stream(),
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}).stream(),
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this.client.indexes.use(this.config.indexName).createIndexingStream()
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new Transform({
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objectMode: true,
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transform: async (chunk, enc, cb) => await processDocument(cb, chunk),
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flush: async (cb) => await processDocument(cb)
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})
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)
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)
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WIKI.logger.info(`(SEARCH/AWS) Requesting Index Rebuild...`)
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await this.client.indexDocuments({
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DomainName: this.config.domain
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}).promise()
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WIKI.logger.info(`(SEARCH/AWS) Index rebuilt successfully.`)
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}
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}
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}
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}
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