renamings: methods log parser

x-tba/2-methods/xxx-log-parser-methods/main.go

@@ -20,5 +20,5 @@ func main() {
 		report.update(p.parse(in.Text()))
 	}
 
-	summarize(report, p.lerr, in.Err())
+	summarize(report, p.err(), in.Err())
 }

x-tba/2-methods/xxx-log-parser-methods/packaged/main.go

@@ -9,8 +9,6 @@ package main
 
 import (
 	"bufio"
-	"encoding/json"
-	"fmt"
 	"os"
 
 	"github.com/inancgumus/learngo/x-tba/2-methods/xxx-log-parser-methods/packaged/metrics"
@@ -23,7 +21,9 @@ func main() {
 	for in.Scan() {
 		report.Update(parser.Parse(in.Text()))
 	}
-	s, _ := json.Marshal(report)
-	fmt.Println(string(s))
+
 	summarize(report, parser.Err(), in.Err())
+
+	// s, _ := json.Marshal(report)
+	// fmt.Println(string(s))
 }

x-tba/2-methods/xxx-log-parser-methods/packaged/metrics/parser.go

@@ -29,24 +29,24 @@ func NewParser() *Parser {
 }
 
 // Parse parses a log line and returns a result with an injected error
-func (l *Parser) Parse(line string) (parsed Parsed) {
+func (p *Parser) Parse(line string) (parsed Parsed) {
 	// always set the error
-	defer func() { parsed.err = l.lerr }()
+	defer func() { parsed.err = p.lerr }()
 
 	// if there was an error do not continue
-	if l.lerr != nil {
+	if p.lerr != nil {
 		return
 	}
 
 	// chain the parser's error to the result's
 	res, err := parse(line)
-	if l.lines++; err != nil {
-		l.lerr = fmt.Errorf("%s: (line #%d)", err, l.lines)
+	if p.lines++; err != nil {
+		p.lerr = fmt.Errorf("%s: (line #%d)", err, p.lines)
 	}
 	return Parsed{result: res}
 }
 
 // Err returns the last error encountered
-func (l *Parser) Err() error {
-	return l.lerr
+func (p *Parser) Err() error {
+	return p.lerr
 }

x-tba/2-methods/xxx-log-parser-methods/parser.go

@@ -10,16 +10,16 @@ type parser struct {
 	lerr  error // the last error occurred
 }
 
-// parserResult wraps a result for generating parser error
-type parserResult struct {
+// parsed wraps a result for generating parser error
+type parsed struct {
 	result       // use struct embedding
 	err    error // inject an error
 }
 
 // parse parses a log line and returns a result with an injected error
-func (p *parser) parse(line string) (parsed parserResult) {
+func (p *parser) parse(line string) (pv parsed) {
 	// always set the error
-	defer func() { parsed.err = p.lerr }()
+	defer func() { pv.err = p.lerr }()
 
 	// if there was an error do not continue
 	if p.lerr != nil {
@@ -31,5 +31,10 @@ func (p *parser) parse(line string) (parsed parserResult) {
 	if p.lines++; err != nil {
 		p.lerr = fmt.Errorf("%s: (line #%d)", err, p.lines)
 	}
-	return parserResult{result: res}
+	return parsed{result: res}
+}
+
+// err returns the last error encountered
+func (p *parser) err() error {
+	return p.lerr
 }

x-tba/2-methods/xxx-log-parser-methods/report.go

@@ -22,7 +22,7 @@ func newReport() *report {
 }
 
 // update updates the errors for the given parsing result
-func (r *report) update(parsed parserResult) {
+func (r *report) update(parsed parsed) {
 	// do not update the report if the result has an error
 	if parsed.err != nil {
 		return

x-tba/2-methods/xxx-log-parser-methods/summarize.go

@@ -13,16 +13,16 @@ import (
 )
 
 // summarize prints the report and errors if any
-func summarize(r *report, errs ...error) {
+func summarize(rep *report, errs ...error) {
 	fmt.Printf("%-30s %10s\n", "DOMAIN", "VISITS")
 	fmt.Println(strings.Repeat("-", 45))
 
-	next, cur := r.iterator()
+	next, cur := rep.iterator()
 	for next() {
 		rec := cur()
 		fmt.Printf("%-30s %10d\n", rec.domain, rec.visits)
 	}
-	fmt.Printf("\n%-30s %10d\n", "TOTAL", r.total.visits)
+	fmt.Printf("\n%-30s %10d\n", "TOTAL", rep.total.visits)
 
 	// only handle the errors once
 	dumpErrs(errs...)