1
This commit is contained in:
Alex Yatskov 2015-08-12 17:53:53 +09:00
parent 42030a1aba
commit 61267464fb
2 changed files with 156 additions and 21 deletions

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@ -22,26 +22,6 @@
package main package main
import (
"fmt"
"log"
"github.com/PuerkitoBio/goquery"
)
func ExampleScrape() {
doc, err := goquery.NewDocument("http://metalsucks.net")
if err != nil {
log.Fatal(err)
}
doc.Find(".reviews-wrap article .review-rhs").Each(func(i int, s *goquery.Selection) {
band := s.Find("h3").Text()
title := s.Find("i").Text()
fmt.Printf("Review %d: %s - %s\n", i, band, title)
})
}
func main() { func main() {
ExampleScrape() scrapeTabelog()
} }

155
tabelog.go Normal file
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@ -0,0 +1,155 @@
/*
* Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
* Author: Alex Yatskov <alex@foosoft.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package main
import (
"bytes"
"errors"
"log"
"regexp"
"strconv"
"strings"
"sync"
"text/template"
"github.com/PuerkitoBio/goquery"
)
const (
tabelogTemplate = "http://tabelog.com/en/rstLst/{{.Page}}/?lat=35.465808055555996&lon=139.61964361111&zoom=16&RdoCosTp=2&LstCos=0&LstCosT=11&LstSitu=0&LstRev=0&LstReserve=0&ChkParking=0&LstSmoking=0"
)
type tabelogParams struct {
Page int
}
type tabelogReview struct {
name string
address string
dishes float64
service float64
atmosphere float64
cost float64
drinks float64
url string
}
func parseCounts(doc *goquery.Document) (from, to, total int64, err error) {
t := doc.Find("#js-item-count-downside").Text()
r := regexp.MustCompile(`(\d+)\D*(\d+)\D*(\d+)`)
if c := r.FindStringSubmatch(t); c != nil {
from, _ = strconv.ParseInt(c[1], 10, 8)
to, _ = strconv.ParseInt(c[2], 10, 8)
total, _ = strconv.ParseInt(c[3], 10, 8)
} else {
err = errors.New("failed to parse counts")
}
return
}
func scrapeReview(url string, out chan tabelogReview) {
doc, err := goquery.NewDocument(url)
if err != nil {
log.Print(err)
return
}
var r tabelogReview
r.url = url
r.name = doc.Find("body > article > header > div.rd-header.l-container > div > div.rd-header__headline > h2 > a").Text()
r.address = strings.TrimSpace(doc.Find("#anchor-rd-detail > section > table > tbody > tr > td > p.rd-detail-info__rst-address").First().Text())
if r.dishes, err = strconv.ParseFloat(doc.Find("#js-rating-detail > dd:nth-child(2)").Text(), 8); err != nil {
return
}
if r.service, err = strconv.ParseFloat(doc.Find("#js-rating-detail > dd:nth-child(4)").Text(), 8); err != nil {
return
}
if r.atmosphere, err = strconv.ParseFloat(doc.Find("#js-rating-detail > dd:nth-child(6)").Text(), 8); err != nil {
return
}
if r.cost, err = strconv.ParseFloat(doc.Find("#js-rating-detail > dd:nth-child(8)").Text(), 8); err != nil {
return
}
if r.drinks, err = strconv.ParseFloat(doc.Find("#js-rating-detail > dd:nth-child(10)").Text(), 8); err != nil {
return
}
out <- r
}
func scrapeIndex(url string, out chan tabelogReview) error {
doc, err := goquery.NewDocument(url)
if err != nil {
return err
}
doc.Find("#js-map-search-result-list > li > div.list-rst__header > p > a").Each(func(index int, sel *goquery.Selection) {
if href, ok := sel.Attr("href"); ok {
go scrapeReview(href, out)
}
})
return nil
}
func dumpReviews(c chan tabelogReview, cond *sync.Cond) {
for {
review, ok := <-c
if !ok {
break
}
log.Print(review)
}
cond.Signal()
}
func scrapeTabelog() error {
var cond sync.Cond
out := make(chan tabelogReview)
go dumpReviews(out, &cond)
t := template.New("tabelog")
t.Parse(tabelogTemplate)
for i := 1; i <= 60; i++ {
var url bytes.Buffer
if err := t.Execute(&url, tabelogParams{i}); err != nil {
log.Fatal(err)
}
if err := scrapeIndex(string(url.Bytes()), out); err != nil {
return err
}
}
close(out)
cond.Wait()
return nil
}