41 lines
925 B
Go
41 lines
925 B
Go
// For more tutorials: https://blog.learngoprogramming.com
|
|
//
|
|
// Copyright © 2018 Inanc Gumus
|
|
// Learn Go Programming Course
|
|
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
|
|
//
|
|
|
|
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
|
|
"github.com/inancgumus/learngo/x-tba/2-methods/xxx-log-parser-methods/packaged/metrics"
|
|
)
|
|
|
|
// summarize prints the report and errors if any
|
|
func summarize(rep *metrics.Report, errs ...error) {
|
|
fmt.Printf("%-30s %10s\n", "DOMAIN", "VISITS")
|
|
fmt.Println(strings.Repeat("-", 45))
|
|
|
|
next, cur := rep.Iterator()
|
|
for next() {
|
|
rec := cur()
|
|
fmt.Printf("%-30s %10d\n", rec.Domain, rec.Visits)
|
|
}
|
|
fmt.Printf("\n%-30s %10d\n", "TOTAL", rep.Total().Visits)
|
|
|
|
// only handle the errors once
|
|
dumpErrs(errs...)
|
|
}
|
|
|
|
// this variadic func simplifies the multiple error handling
|
|
func dumpErrs(errs ...error) {
|
|
for _, err := range errs {
|
|
if err != nil {
|
|
fmt.Printf("> Err: %s\n", err)
|
|
}
|
|
}
|
|
}
|