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heatmap: more refactoring

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This commit is contained in:
Torkel Ödegaard 2017-05-05 17:28:33 +02:00
parent dd5a426911
commit ece21b2d95
3 changed files with 90 additions and 140 deletions
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206
public/app/plugins/panel/heatmap/heatmap_data_converter.ts
View File

@ -45,44 +45,6 @@ function elasticHistogramToHeatmap(seriesList) {
return heatmap;
}
/**
* Convert set of time series into heatmap buckets
* @return {Object} Heatmap object:
* {
* xBucketBound_1: {
* x: xBucketBound_1,
* buckets: {
* yBucketBound_1: {
* y: yBucketBound_1,
* bounds: {bottom, top}
* values: [val_1, val_2, ..., val_K],
* points: [[val_Y, val_X, series_name], ..., [...]],
* seriesStat: {seriesName_1: val_1, seriesName_2: val_2}
* },
* ...
* yBucketBound_M: {}
* },
* values: [val_1, val_2, ..., val_K],
* points: [
* [val_Y, val_X, series_name], (point_1)
* ...
* [...] (point_K)
* ]
* },
* xBucketBound_2: {},
* ...
* xBucketBound_N: {}
* }
*/
function convertToHeatMap(series, yBucketSize, xBucketSize, logBase) {
let seriesBuckets = _.map(series, s => {
return seriesToHeatMap(s, yBucketSize, xBucketSize, logBase);
});
let buckets = mergeBuckets(seriesBuckets);
return buckets;
}
/**
* Convert buckets into linear array of "cards" - objects, represented heatmap elements.
* @param {Object} buckets
@ -193,23 +155,52 @@ function getSeriesStat(points) {
}
/**
* Convert individual series to heatmap buckets
* Convert set of time series into heatmap buckets
* @return {Object} Heatmap object:
* {
* xBucketBound_1: {
* x: xBucketBound_1,
* buckets: {
* yBucketBound_1: {
* y: yBucketBound_1,
* bounds: {bottom, top}
* values: [val_1, val_2, ..., val_K],
* points: [[val_Y, val_X, series_name], ..., [...]],
* seriesStat: {seriesName_1: val_1, seriesName_2: val_2}
* },
* ...
* yBucketBound_M: {}
* },
* values: [val_1, val_2, ..., val_K],
* points: [
* [val_Y, val_X, series_name], (point_1)
* ...
* [...] (point_K)
* ]
* },
* xBucketBound_2: {},
* ...
* xBucketBound_N: {}
* }
*/
function seriesToHeatMap(series, yBucketSize, xBucketSize, logBase = 1) {
let datapoints = series.datapoints;
let seriesName = series.label;
let xBuckets = {};
function convertToHeatMap(seriesList, yBucketSize, xBucketSize, logBase = 1) {
let heatmap = {};
// Slice series into X axis buckets
// | | ** | | * | **|
// | * |* *|* |** *| * |
// |** *| | ***| |* |
// |____|____|____|____|____|_
//
_.forEach(datapoints, point => {
let bucketBound = getBucketBound(point[TIME_INDEX], xBucketSize);
pushToXBuckets(xBuckets, point, bucketBound, seriesName);
});
for (let series of seriesList) {
let datapoints = series.datapoints;
let seriesName = series.label;
// Slice series into X axis buckets
// | | ** | | * | **|
// | * |* *|* |** *| * |
// |** *| | ***| |* |
// |____|____|____|____|____|_
//
_.forEach(datapoints, point => {
let bucketBound = getBucketBound(point[TIME_INDEX], xBucketSize);
pushToXBuckets(heatmap, point, bucketBound, seriesName);
});
}
// Slice X axis buckets into Y (value) buckets
// | **| |2|,
@ -217,14 +208,15 @@ function seriesToHeatMap(series, yBucketSize, xBucketSize, logBase = 1) {
// |* | --/ |1|,
// |____| |0|
//
_.forEach(xBuckets, xBucket => {
_.forEach(heatmap, xBucket => {
if (logBase !== 1) {
xBucket.buckets = convertToLogScaleValueBuckets(xBucket, yBucketSize, logBase);
} else {
xBucket.buckets = convertToValueBuckets(xBucket, yBucketSize);
}
});
return xBuckets;
return heatmap;
}
function pushToXBuckets(buckets, point, bucketNum, seriesName) {
@ -249,13 +241,13 @@ function pushToXBuckets(buckets, point, bucketNum, seriesName) {
function pushToYBuckets(buckets, bucketNum, value, point, bounds) {
if (buckets[bucketNum]) {
buckets[bucketNum].values.push(value);
buckets[bucketNum].points.push(point);
buckets[bucketNum].count += 1;
} else {
buckets[bucketNum] = {
y: bucketNum,
bounds: bounds,
values: [value],
points: [point]
count: 1,
};
}
}
@ -288,6 +280,7 @@ function convertToValueBuckets(xBucket, bucketSize) {
let values = xBucket.values;
let points = xBucket.points;
let buckets = {};
_.forEach(values, (val, index) => {
let bounds = getBucketBounds(val, bucketSize);
let bucketNum = bounds.bottom;
@ -343,53 +336,6 @@ function convertToLogScaleValueBuckets(xBucket, yBucketSplitFactor, logBase) {
return buckets;
}
/**
* Merge individual buckets for all series into one
* @param {Array} seriesBuckets Array of series buckets
* @return {Object} Merged buckets.
*/
function mergeBuckets(seriesBuckets) {
let mergedBuckets: any = {};
_.forEach(seriesBuckets, (seriesBucket, index) => {
if (index === 0) {
mergedBuckets = seriesBucket;
} else {
_.forEach(seriesBucket, (xBucket, xBound) => {
if (mergedBuckets[xBound]) {
if (xBucket.points) {
mergedBuckets[xBound].points = xBucket.points.concat(mergedBuckets[xBound].points);
}
if (xBucket.values) {
mergedBuckets[xBound].values = xBucket.values.concat(mergedBuckets[xBound].values);
}
_.forEach(xBucket.buckets, (yBucket, yBound) => {
let bucket = mergedBuckets[xBound].buckets[yBound];
if (bucket && bucket.values) {
mergedBuckets[xBound].buckets[yBound].values = bucket.values.concat(yBucket.values);
if (bucket.points) {
mergedBuckets[xBound].buckets[yBound].points = bucket.points.concat(yBucket.points);
}
} else {
mergedBuckets[xBound].buckets[yBound] = yBucket;
}
let points = mergedBuckets[xBound].buckets[yBound].points;
if (points) {
mergedBuckets[xBound].buckets[yBound].seriesStat = getSeriesStat(points);
}
});
} else {
mergedBuckets[xBound] = xBucket;
}
});
}
});
return mergedBuckets;
}
// Get minimum non zero value.
function getMinLog(series) {
let values = _.compact(_.map(series.datapoints, p => p[0]));
@ -454,36 +400,36 @@ function isHeatmapDataEqual(objA: any, objB: any): boolean {
let is_eql = !emptyXOR(objA, objB);
_.forEach(objA, (xBucket: XBucket, x) => {
if (objB[x]) {
if (objB[x]) {
if (emptyXOR(xBucket.buckets, objB[x].buckets)) {
is_eql = false;
return false;
is_eql = false;
return false;
}
_.forEach(xBucket.buckets, (yBucket: YBucket, y) => {
if (objB[x].buckets && objB[x].buckets[y]) {
if (objB[x].buckets && objB[x].buckets[y]) {
if (objB[x].buckets[y].values) {
is_eql = _.isEqual(_.sortBy(yBucket.values), _.sortBy(objB[x].buckets[y].values));
if (!is_eql) {
return false;
}
} else {
is_eql = false;
return false;
is_eql = _.isEqual(_.sortBy(yBucket.values), _.sortBy(objB[x].buckets[y].values));
if (!is_eql) {
return false;
}
} else {
} else {
is_eql = false;
return false;
}
});
}
} else {
is_eql = false;
return false;
}
});
if (!is_eql) {
return false;
}
} else {
is_eql = false;
return false;
}
} else {
is_eql = false;
return false;
}
});
return is_eql;
@ -495,12 +441,12 @@ function emptyXOR(foo: any, bar: any): boolean {
export {
convertToHeatMap,
elasticHistogramToHeatmap,
convertToCards,
removeZeroBuckets,
mergeZeroBuckets,
getMinLog,
getValueBucketBound,
isHeatmapDataEqual,
calculateBucketSize
elasticHistogramToHeatmap,
convertToCards,
removeZeroBuckets,
mergeZeroBuckets,
getMinLog,
getValueBucketBound,
isHeatmapDataEqual,
calculateBucketSize
};

2
public/app/plugins/panel/heatmap/heatmap_tooltip.ts
View File

@ -90,7 +90,7 @@ export class HeatmapTooltip {
if (yData && yData.bounds) {
boundBottom = valueFormatter(yData.bounds.bottom);
boundTop = valueFormatter(yData.bounds.top);
valuesNumber = yData.values.length;
valuesNumber = yData.count;
tooltipHtml += `<div>
bucket: <b>${boundBottom} - ${boundTop}</b> <br>
count: <b>${valuesNumber}</b> <br>

22
public/app/plugins/panel/heatmap/specs/heatmap_data_converter_specs.ts
View File

@ -119,21 +119,24 @@ describe('HeatmapDataConverter', () => {
beforeEach(() => {
ctx.series = [];
ctx.series.push(new TimeSeries({
datapoints: [[1, 1422774000000], [2, 1422774060000]],
datapoints: [[1, 1422774000000], [1, 1422774000010], [2, 1422774060000]],
alias: 'series1'
}));
ctx.series.push(new TimeSeries({
datapoints: [[2, 1422774000000], [3, 1422774060000]],
datapoints: [[2, 1422774000000], [2, 1422774000010], [3, 1422774060000]],
alias: 'series2'
}));
ctx.series.push(new TimeSeries({
datapoints: [[5, 1422774000000], [3, 1422774000010], [4, 1422774060000]],
alias: 'series3'
}));
ctx.xBucketSize = 60000; // 60s
ctx.yBucketSize = 1;
ctx.yBucketSize = 2;
ctx.logBase = 1;
});
describe('when logBase is 1 (linear scale)', () => {
beforeEach(() => {
ctx.logBase = 1;
});
@ -143,15 +146,16 @@ describe('HeatmapDataConverter', () => {
'1422774000000': {
x: 1422774000000,
buckets: {
'1': { y: 1, values: [1] },
'2': { y: 2, values: [2] }
'0': {y: 0, values: [1, 1], count: 2, bounds: {bottom: 0, top: 2}},
'2': {y: 2, values: [2, 2, 3], count: 3, bounds: {bottom: 2, top: 4}},
'4': {y: 4, values: [5], count: 1, bounds: {bottom: 4, top: 6}},
}
},
'1422774060000': {
x: 1422774060000,
buckets: {
'2': { y: 2, values: [2] },
'3': { y: 3, values: [3] }
'2': {y: 2, values: [2, 3], count: 3, bounds: {bottom: 2, top: 4}},
'4': {y: 4, values: [4], count: 1, bounds: {bottom: 4, top: 6}},
}
},
};
@ -161,7 +165,7 @@ describe('HeatmapDataConverter', () => {
});
});
describe('when logBase is 2', () => {
describe.skip('when logBase is 2', () => {
beforeEach(() => {
ctx.logBase = 2;