/
span-base.js
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/
span-base.js
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/**
* MIT License
*
* Copyright (c) 2017-present, Elasticsearch BV
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
const { isUndefined, generateRandomId, setTag, merge } = require('../common/utils')
class SpanBase {
// context
constructor (name, type, options) {
this.options = options || {}
this.name = name || this.options.name || 'Unknown'
this.type = type || this.options.type || 'custom'
this.id = this.options.id || generateRandomId(16)
this.traceId = this.options.traceId
this.sampled = this.options.sampled
this.timestamp = this.options.timestamp || Date.now()
this.ended = false
this._start = window.performance.now()
this._end = undefined
this.onEnd = this.options.onEnd
}
ensureContext () {
if (!this.context) {
this.context = {}
}
}
addTags (tags) {
this.ensureContext()
var ctx = this.context
if (!ctx.tags) {
ctx.tags = {}
}
var keys = Object.keys(tags)
keys.forEach(function (k) {
setTag(k, tags[k], ctx.tags)
})
}
addContext (context) {
if (!context) return
this.ensureContext()
merge(this.context, context)
}
end () {
if (this.ended) {
return
}
this.ended = true
this._end = window.performance.now()
this.callOnEnd()
}
callOnEnd () {
if (typeof this.onEnd === 'function') {
this.onEnd(this)
}
}
duration () {
if (isUndefined(this._end) || isUndefined(this._start)) {
return null
}
var diff = this._end - this._start
return parseFloat(diff)
}
}
module.exports = SpanBase