mirror of
https://github.com/prometheus/prometheus.git
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e12e5ecc8f
* adopt grafana flot fix for stacked graphs Signed-off-by: blalov <[email protected]> Signed-off-by: Boyko Lalov <[email protected]> * remove flot as dependencie Signed-off-by: blalov <[email protected]> Signed-off-by: Boyko Lalov <[email protected]> * disable eslint error in flot.js Signed-off-by: blalov <[email protected]> Signed-off-by: Boyko Lalov <[email protected]> * fix broken test due to wrong import Signed-off-by: blalov <[email protected]> Signed-off-by: Boyko Lalov <[email protected]> * bring back flot crosshair plugin Signed-off-by: blalov <[email protected]> Signed-off-by: Boyko Lalov <[email protected]> * trying to prevent CI out of memory by adding test script --runInBand flag Signed-off-by: blalov <[email protected]> Signed-off-by: Boyko Lalov <[email protected]> * additional notices regarding origin of the flot vendor Signed-off-by: Boyko Lalov <[email protected]> * move flot in own folder Signed-off-by: Boyko Lalov <[email protected]> * move text on top Signed-off-by: Boyko Lalov <[email protected]>
483 lines
14 KiB
JavaScript
483 lines
14 KiB
JavaScript
/**
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*
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* THIS FILE WAS COPIED INTO PROMETHEUS FROM GRAFANA'S VENDORED FORK OF FLOT
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* (LIVING AT https://github.com/grafana/grafana/tree/master/public/vendor/flot),
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* WHICH CONTAINS FIXES FOR DISPLAYING NULL VALUES IN STACKED GRAPHS. THE ORIGINAL
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* FLOT CODE WAS LICENSED UNDER THE MIT LICENSE AS STATED BELOW. ADDITIONAL
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* CHANGES HAVE BEEN CONTRIBUTED TO THE GRAFANA FORK UNDER AN APACHE 2 LICENSE, SEE
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* https://github.com/grafana/grafana/blob/master/license.
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*
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*/
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/* eslint-disable prefer-rest-params */
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/* eslint-disable no-useless-concat */
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/* eslint-disable default-case */
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/* eslint-disable prefer-spread */
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/* eslint-disable no-loop-func */
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/* eslint-disable @typescript-eslint/no-this-alias */
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/* eslint-disable no-redeclare */
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/* eslint-disable no-useless-escape */
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/* eslint-disable prefer-const */
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/* eslint-disable @typescript-eslint/explicit-function-return-type */
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/* eslint-disable @typescript-eslint/no-use-before-define */
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/* eslint-disable eqeqeq */
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/* eslint-disable no-var */
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/* Pretty handling of time axes.
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Copyright (c) 2007-2013 IOLA and Ole Laursen.
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Licensed under the MIT license.
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Set axis.mode to "time" to enable. See the section "Time series data" in
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API.txt for details.
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*/
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(function($) {
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const options = {
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xaxis: {
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timezone: null, // "browser" for local to the client or timezone for timezone-js
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timeformat: null, // format string to use
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twelveHourClock: false, // 12 or 24 time in time mode
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monthNames: null, // list of names of months
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},
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};
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// round to nearby lower multiple of base
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function floorInBase(n, base) {
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return base * Math.floor(n / base);
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}
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// Returns a string with the date d formatted according to fmt.
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// A subset of the Open Group's strftime format is supported.
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function formatDate(d, fmt, monthNames, dayNames) {
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if (typeof d.strftime == 'function') {
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return d.strftime(fmt);
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}
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const leftPad = function(n, pad) {
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n = '' + n;
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pad = '' + (pad == null ? '0' : pad);
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return n.length == 1 ? pad + n : n;
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};
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const r = [];
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let escape = false;
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const hours = d.getHours();
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const isAM = hours < 12;
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if (monthNames == null) {
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monthNames = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
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}
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if (dayNames == null) {
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dayNames = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
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}
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let hours12;
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if (hours > 12) {
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hours12 = hours - 12;
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} else if (hours == 0) {
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hours12 = 12;
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} else {
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hours12 = hours;
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}
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for (let i = 0; i < fmt.length; ++i) {
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let c = fmt.charAt(i);
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if (escape) {
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switch (c) {
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case 'a':
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c = '' + dayNames[d.getDay()];
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break;
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case 'b':
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c = '' + monthNames[d.getMonth()];
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break;
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case 'd':
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c = leftPad(d.getDate(), '');
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break;
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case 'e':
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c = leftPad(d.getDate(), ' ');
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break;
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case 'h': // For back-compat with 0.7; remove in 1.0
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case 'H':
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c = leftPad(hours);
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break;
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case 'I':
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c = leftPad(hours12);
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break;
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case 'l':
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c = leftPad(hours12, ' ');
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break;
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case 'm':
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c = leftPad(d.getMonth() + 1, '');
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break;
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case 'M':
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c = leftPad(d.getMinutes());
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break;
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// quarters not in Open Group's strftime specification
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case 'q':
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c = '' + (Math.floor(d.getMonth() / 3) + 1);
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break;
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case 'S':
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c = leftPad(d.getSeconds());
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break;
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case 'y':
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c = leftPad(d.getFullYear() % 100);
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break;
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case 'Y':
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c = '' + d.getFullYear();
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break;
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case 'p':
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c = isAM ? '' + 'am' : '' + 'pm';
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break;
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case 'P':
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c = isAM ? '' + 'AM' : '' + 'PM';
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break;
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case 'w':
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c = '' + d.getDay();
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break;
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}
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r.push(c);
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escape = false;
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} else {
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if (c == '%') {
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escape = true;
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} else {
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r.push(c);
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}
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}
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}
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return r.join('');
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}
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// To have a consistent view of time-based data independent of which time
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// zone the client happens to be in we need a date-like object independent
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// of time zones. This is done through a wrapper that only calls the UTC
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// versions of the accessor methods.
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function makeUtcWrapper(d) {
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function addProxyMethod(sourceObj, sourceMethod, targetObj, targetMethod) {
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sourceObj[sourceMethod] = function() {
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return targetObj[targetMethod].apply(targetObj, arguments);
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};
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}
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const utc = {
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date: d,
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};
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// support strftime, if found
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if (d.strftime != undefined) {
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addProxyMethod(utc, 'strftime', d, 'strftime');
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}
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addProxyMethod(utc, 'getTime', d, 'getTime');
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addProxyMethod(utc, 'setTime', d, 'setTime');
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const props = ['Date', 'Day', 'FullYear', 'Hours', 'Milliseconds', 'Minutes', 'Month', 'Seconds'];
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for (let p = 0; p < props.length; p++) {
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addProxyMethod(utc, 'get' + props[p], d, 'getUTC' + props[p]);
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addProxyMethod(utc, 'set' + props[p], d, 'setUTC' + props[p]);
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}
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return utc;
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}
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// select time zone strategy. This returns a date-like object tied to the
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// desired timezone
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function dateGenerator(ts, opts) {
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if (opts.timezone == 'browser') {
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return new Date(ts);
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} else if (!opts.timezone || opts.timezone == 'utc') {
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return makeUtcWrapper(new Date(ts));
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}
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// } else if (typeof timezoneJS != 'undefined' && typeof timezoneJS.Date != 'undefined') {
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// const d = new timezoneJS.Date();
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// // timezone-js is fickle, so be sure to set the time zone before
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// // setting the time.
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// d.setTimezone(opts.timezone);
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// d.setTime(ts);
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// return d;
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// }
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return makeUtcWrapper(new Date(ts));
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}
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// map of app. size of time units in milliseconds
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const timeUnitSize = {
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second: 1000,
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minute: 60 * 1000,
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hour: 60 * 60 * 1000,
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day: 24 * 60 * 60 * 1000,
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month: 30 * 24 * 60 * 60 * 1000,
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quarter: 3 * 30 * 24 * 60 * 60 * 1000,
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year: 365.2425 * 24 * 60 * 60 * 1000,
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};
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// the allowed tick sizes, after 1 year we use
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// an integer algorithm
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const baseSpec = [
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[1, 'second'],
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[2, 'second'],
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[5, 'second'],
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[10, 'second'],
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[30, 'second'],
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[1, 'minute'],
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[2, 'minute'],
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[5, 'minute'],
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[10, 'minute'],
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[30, 'minute'],
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[1, 'hour'],
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[2, 'hour'],
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[4, 'hour'],
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[8, 'hour'],
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[12, 'hour'],
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[1, 'day'],
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[2, 'day'],
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[3, 'day'],
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[0.25, 'month'],
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[0.5, 'month'],
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[1, 'month'],
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[2, 'month'],
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];
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// we don't know which variant(s) we'll need yet, but generating both is
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// cheap
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const specMonths = baseSpec.concat([[3, 'month'], [6, 'month'], [1, 'year']]);
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const specQuarters = baseSpec.concat([[1, 'quarter'], [2, 'quarter'], [1, 'year']]);
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function init(plot) {
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plot.hooks.processOptions.push(function(plot) {
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$.each(plot.getAxes(), function(axisName, axis) {
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const opts = axis.options;
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if (opts.mode == 'time') {
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axis.tickGenerator = function(axis) {
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const ticks = [];
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const d = dateGenerator(axis.min, opts);
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let minSize = 0;
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// make quarter use a possibility if quarters are
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// mentioned in either of these options
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const spec =
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(opts.tickSize && opts.tickSize[1] === 'quarter') || (opts.minTickSize && opts.minTickSize[1] === 'quarter')
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? specQuarters
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: specMonths;
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if (opts.minTickSize != null) {
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if (typeof opts.tickSize == 'number') {
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minSize = opts.tickSize;
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} else {
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minSize = opts.minTickSize[0] * timeUnitSize[opts.minTickSize[1]];
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}
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}
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for (var i = 0; i < spec.length - 1; ++i) {
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if (
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axis.delta < (spec[i][0] * timeUnitSize[spec[i][1]] + spec[i + 1][0] * timeUnitSize[spec[i + 1][1]]) / 2 &&
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spec[i][0] * timeUnitSize[spec[i][1]] >= minSize
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) {
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break;
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}
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}
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let size = spec[i][0];
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let unit = spec[i][1];
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// special-case the possibility of several years
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if (unit == 'year') {
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// if given a minTickSize in years, just use it,
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// ensuring that it's an integer
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if (opts.minTickSize != null && opts.minTickSize[1] == 'year') {
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size = Math.floor(opts.minTickSize[0]);
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} else {
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const magn = Math.pow(10, Math.floor(Math.log(axis.delta / timeUnitSize.year) / Math.LN10));
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const norm = axis.delta / timeUnitSize.year / magn;
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if (norm < 1.5) {
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size = 1;
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} else if (norm < 3) {
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size = 2;
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} else if (norm < 7.5) {
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size = 5;
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} else {
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size = 10;
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}
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size *= magn;
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}
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// minimum size for years is 1
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if (size < 1) {
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size = 1;
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}
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}
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axis.tickSize = opts.tickSize || [size, unit];
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const tickSize = axis.tickSize[0];
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unit = axis.tickSize[1];
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const step = tickSize * timeUnitSize[unit];
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if (unit == 'second') {
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d.setSeconds(floorInBase(d.getSeconds(), tickSize));
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} else if (unit == 'minute') {
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d.setMinutes(floorInBase(d.getMinutes(), tickSize));
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} else if (unit == 'hour') {
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d.setHours(floorInBase(d.getHours(), tickSize));
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} else if (unit == 'month') {
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d.setMonth(floorInBase(d.getMonth(), tickSize));
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} else if (unit == 'quarter') {
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d.setMonth(3 * floorInBase(d.getMonth() / 3, tickSize));
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} else if (unit == 'year') {
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d.setFullYear(floorInBase(d.getFullYear(), tickSize));
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}
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// reset smaller components
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d.setMilliseconds(0);
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if (step >= timeUnitSize.minute) {
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d.setSeconds(0);
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}
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if (step >= timeUnitSize.hour) {
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d.setMinutes(0);
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}
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if (step >= timeUnitSize.day) {
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d.setHours(0);
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}
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if (step >= timeUnitSize.day * 4) {
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d.setDate(1);
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}
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if (step >= timeUnitSize.month * 2) {
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d.setMonth(floorInBase(d.getMonth(), 3));
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}
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if (step >= timeUnitSize.quarter * 2) {
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d.setMonth(floorInBase(d.getMonth(), 6));
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}
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if (step >= timeUnitSize.year) {
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d.setMonth(0);
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}
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let carry = 0;
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let v = Number.NaN;
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let prev;
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do {
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prev = v;
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v = d.getTime();
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ticks.push(v);
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if (unit == 'month' || unit == 'quarter') {
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if (tickSize < 1) {
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// a bit complicated - we'll divide the
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// month/quarter up but we need to take
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// care of fractions so we don't end up in
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// the middle of a day
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d.setDate(1);
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const start = d.getTime();
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d.setMonth(d.getMonth() + (unit == 'quarter' ? 3 : 1));
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const end = d.getTime();
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d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize);
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carry = d.getHours();
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d.setHours(0);
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} else {
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d.setMonth(d.getMonth() + tickSize * (unit == 'quarter' ? 3 : 1));
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}
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} else if (unit == 'year') {
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d.setFullYear(d.getFullYear() + tickSize);
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} else {
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d.setTime(v + step);
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}
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} while (v < axis.max && v != prev);
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return ticks;
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};
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axis.tickFormatter = function(v, axis) {
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const d = dateGenerator(v, axis.options);
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// first check global format
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if (opts.timeformat != null) {
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return formatDate(d, opts.timeformat, opts.monthNames, opts.dayNames);
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}
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// possibly use quarters if quarters are mentioned in
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// any of these places
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const useQuarters =
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(axis.options.tickSize && axis.options.tickSize[1] == 'quarter') ||
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(axis.options.minTickSize && axis.options.minTickSize[1] == 'quarter');
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const t = axis.tickSize[0] * timeUnitSize[axis.tickSize[1]];
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const span = axis.max - axis.min;
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const suffix = opts.twelveHourClock ? ' %p' : '';
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const hourCode = opts.twelveHourClock ? '%I' : '%H';
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let fmt;
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if (t < timeUnitSize.minute) {
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fmt = hourCode + ':%M:%S' + suffix;
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} else if (t < timeUnitSize.day) {
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if (span < 2 * timeUnitSize.day) {
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fmt = hourCode + ':%M' + suffix;
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} else {
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fmt = '%b %d ' + hourCode + ':%M' + suffix;
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}
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} else if (t < timeUnitSize.month) {
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fmt = '%b %d';
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} else if ((useQuarters && t < timeUnitSize.quarter) || (!useQuarters && t < timeUnitSize.year)) {
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if (span < timeUnitSize.year) {
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fmt = '%b';
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} else {
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fmt = '%b %Y';
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}
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} else if (useQuarters && t < timeUnitSize.year) {
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if (span < timeUnitSize.year) {
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fmt = 'Q%q';
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} else {
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fmt = 'Q%q %Y';
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}
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} else {
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fmt = '%Y';
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}
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const rt = formatDate(d, fmt, opts.monthNames, opts.dayNames);
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return rt;
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};
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}
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});
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});
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}
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$.plot.plugins.push({
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init: init,
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options: options,
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name: 'time',
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version: '1.0',
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});
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// Time-axis support used to be in Flot core, which exposed the
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// formatDate function on the plot object. Various plugins depend
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// on the function, so we need to re-expose it here.
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$.plot.formatDate = formatDate;
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})(window.jQuery);
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