55 lines
946 B
Go
55 lines
946 B
Go
package internal
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import (
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"fmt"
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"io"
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"strings"
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"text/tabwriter"
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"github.com/influxdata/platform"
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)
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type tabWriter struct {
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writer *tabwriter.Writer
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headers []string
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}
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func NewTabWriter(w io.Writer) *tabWriter {
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return &tabWriter{
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writer: tabwriter.NewWriter(w, 0, 8, 1, '\t', 0),
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}
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}
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func (w *tabWriter) WriteHeaders(h ...string) {
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w.headers = h
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fmt.Fprintln(w.writer, strings.Join(h, "\t"))
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}
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func (w *tabWriter) Write(m map[string]interface{}) {
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body := make([]interface{}, len(w.headers))
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types := make([]string, len(w.headers))
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for i, h := range w.headers {
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v := m[h]
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body[i] = v
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types[i] = formatStringType(v)
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}
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formatString := strings.Join(types, "\t")
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fmt.Fprintf(w.writer, formatString+"\n", body...)
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}
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func (w *tabWriter) Flush() {
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w.writer.Flush()
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}
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func formatStringType(i interface{}) string {
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switch i.(type) {
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case int:
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return "%d"
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case platform.ID, string:
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return "%s"
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}
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return "%v"
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}
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