From c19111629c57b608c4a25381abcf4c23b5539a81 Mon Sep 17 00:00:00 2001 From: Will Charczuk Date: Sun, 7 Aug 2016 10:51:06 -0700 Subject: [PATCH] report card --- README.md | 2 +- _examples/request_timings/main.go | 113 ++++++++++++++++ _examples/request_timings/requests.csv | 170 +++++++++++++++++++++++++ 3 files changed, 284 insertions(+), 1 deletion(-) create mode 100644 _examples/request_timings/main.go create mode 100644 _examples/request_timings/requests.csv diff --git a/README.md b/README.md index baa059a..e926205 100644 --- a/README.md +++ b/README.md @@ -1,6 +1,6 @@ go-chart ======== -[![Build Status](https://travis-ci.org/wcharczuk/go-chart.svg?branch=master)](https://travis-ci.org/wcharczuk/go-chart) +[![Build Status](https://travis-ci.org/wcharczuk/go-chart.svg?branch=master)](https://travis-ci.org/wcharczuk/go-chart)[![Go Report Card](https://goreportcard.com/badge/github.com/wcharczuk/go-chart)](https://goreportcard.com/report/github.com/wcharczuk/go-chart) Package `chart` is a very simple golang native charting library that supports timeseries and continuous line charts. diff --git a/_examples/request_timings/main.go b/_examples/request_timings/main.go new file mode 100644 index 0000000..dba4190 --- /dev/null +++ b/_examples/request_timings/main.go @@ -0,0 +1,113 @@ +package main + +import ( + "net/http" + "strings" + "time" + + util "github.com/blendlabs/go-util" + "github.com/wcharczuk/go-chart" +) + +func readData() ([]time.Time, []float64) { + var xvalues []time.Time + var yvalues []float64 + util.ReadFileByLines("requests.csv", func(line string) { + parts := strings.Split(line, ",") + year := util.ParseInt(parts[0]) + month := util.ParseInt(parts[1]) + day := util.ParseInt(parts[2]) + hour := util.ParseInt(parts[3]) + elapsedMillis := util.ParseFloat64(parts[4]) + xvalues = append(xvalues, time.Date(year, time.Month(month), day, hour, 0, 0, 0, time.UTC)) + yvalues = append(yvalues, elapsedMillis) + }) + return xvalues, yvalues +} + +func drawChart(res http.ResponseWriter, req *http.Request) { + xvalues, yvalues := readData() + mainSeries := chart.TimeSeries{ + Name: "Prod Request Timings", + Style: chart.Style{ + Show: true, + StrokeColor: chart.ColorBlue, + FillColor: chart.ColorBlue.WithAlpha(100), + }, + XValues: xvalues, + YValues: yvalues, + } + + minSeries := &chart.MinSeries{ + Style: chart.Style{ + Show: true, + StrokeColor: chart.ColorAlternateGray, + StrokeDashArray: []float64{5.0, 5.0}, + }, + InnerSeries: mainSeries, + } + + maxSeries := &chart.MaxSeries{ + Style: chart.Style{ + Show: true, + StrokeColor: chart.ColorAlternateGray, + StrokeDashArray: []float64{5.0, 5.0}, + }, + InnerSeries: mainSeries, + } + + linreg := &chart.LinearRegressionSeries{ + Name: "Linear Regression", + Style: chart.Style{ + Show: true, + StrokeColor: chart.ColorAlternateBlue, + StrokeDashArray: []float64{5.0, 5.0}, + }, + InnerSeries: mainSeries, + } + + sma := &chart.SMASeries{ + Name: "SMA", + Style: chart.Style{ + Show: true, + StrokeColor: chart.ColorRed, + StrokeDashArray: []float64{5.0, 5.0}, + }, + InnerSeries: mainSeries, + } + + graph := chart.Chart{ + Width: 1280, + Height: 720, + YAxis: chart.YAxis{ + Name: "Elapsed Millis", + NameStyle: chart.StyleShow(), + Style: chart.StyleShow(), + }, + XAxis: chart.XAxis{ + Style: chart.StyleShow(), + ValueFormatter: chart.TimeHourValueFormatter, + }, + Series: []chart.Series{ + mainSeries, + minSeries, + maxSeries, + chart.LastValueAnnotation(minSeries), + chart.LastValueAnnotation(maxSeries), + linreg, + chart.LastValueAnnotation(linreg), + sma, + chart.LastValueAnnotation(sma), + }, + } + + graph.Elements = []chart.Renderable{chart.Legend(&graph)} + + res.Header().Set("Content-Type", "image/png") + graph.Render(chart.PNG, res) +} + +func main() { + http.HandleFunc("/", drawChart) + http.ListenAndServe(":8080", nil) +} diff --git a/_examples/request_timings/requests.csv b/_examples/request_timings/requests.csv new file mode 100644 index 0000000..6d0ebd1 --- 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