kibana-123/src/core_plugins/timelion/server/series_functions/static.js

Kibana is an open source (Apache Licensed), browser based analytics and search dashboard for Elasticsearch. Kibana is a snap to setup and start using. Kibana strives to be easy to get started with, while also being flexible and powerful, just like Elastic

var _ = require('lodash');
var fetch = require('node-fetch');
var moment = require('moment');
var Datasource = require('../lib/classes/datasource');
var Promise = require('bluebird');


module.exports = new Datasource ('static', {
  aliases: ['value'],
  args: [
    {
      name: 'value', // _test-data.users.*.data
      types: ['number', 'string'],
      help: 'The single value to to display, you can also pass several values and I will interpolate them evenly ' +
        'across your time range.'
    },
    {
      name: 'label',
      types: ['string', 'null'],
      help: 'A quick way to set the label for the series. You could also use the .label() function'
    }
  ],
  help: 'Draws a single value across the chart',
  fn: function staticFn(args, tlConfig) {

    var data;
    var target = tlConfig.getTargetSeries();
    if (typeof args.byName.value === 'string') {
      var points = args.byName.value.split(':');
      var begin = _.first(target)[0];
      var end = _.last(target)[0];
      var step = (end - begin) / (points.length - 1);
      data = _.map(points, function (point, i) {
        return [begin + (i * step), parseFloat(point)];
      });
    } else {
      data = _.map(target, function (bucket) {
        return [bucket[0], args.byName.value];
      });
    }

    return Promise.resolve({
      type: 'seriesList',
      list: [
        {
          data: data,
          type: 'series',
          label: args.byName.label == null ? String(args.byName.value) : args.byName.label,
          fit: args.byName.fit || 'average'
        }
      ]
    });
  }
});