fd738f8425
- Standardized event emitters - Refactored transport.request to have a better handling of the state - Added sniff event - Improved abort handling
61 lines
1.5 KiB
JavaScript
61 lines
1.5 KiB
JavaScript
'use strict'
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const { stringify } = require('querystring')
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const debug = require('debug')('elasticsearch')
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const { SerializationError, DeserializationError } = require('./errors')
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class Serializer {
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serialize (object) {
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debug('Serializing', object)
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try {
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var json = JSON.stringify(object)
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} catch (err) {
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throw new SerializationError(err.message)
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}
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return json
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}
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deserialize (json) {
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debug('Deserializing', json)
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try {
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var object = JSON.parse(json)
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} catch (err) {
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throw new DeserializationError(err.message)
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}
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return object
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}
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ndserialize (array) {
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debug('ndserialize', array)
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if (Array.isArray(array) === false) {
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throw new SerializationError('The argument provided is not an array')
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}
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var ndjson = ''
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for (var i = 0, len = array.length; i < len; i++) {
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if (typeof array[i] === 'string') {
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ndjson += array[i] + '\n'
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} else {
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ndjson += this.serialize(array[i]) + '\n'
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}
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}
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return ndjson
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}
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qserialize (object) {
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debug('qserialize', object)
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if (object == null) return ''
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if (typeof object === 'string') return object
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// arrays should be serialized as comma separated list
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const keys = Object.keys(object)
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for (var i = 0, len = keys.length; i < len; i++) {
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var key = keys[i]
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if (Array.isArray(object[key]) === true) {
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object[key] = object[key].join(',')
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}
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}
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return stringify(object)
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}
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}
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module.exports = Serializer
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