Updates
This commit is contained in:
parent
c4771359bd
commit
37161c7206
2
build/.gitignore
vendored
2
build/.gitignore
vendored
@ -1 +1 @@
|
||||
scrape
|
||||
build
|
||||
|
||||
226
build/build.go
Normal file
226
build/build.go
Normal file
@ -0,0 +1,226 @@
|
||||
/*
|
||||
* 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 (
|
||||
"bufio"
|
||||
"database/sql"
|
||||
"errors"
|
||||
"net/url"
|
||||
"os"
|
||||
|
||||
_ "github.com/mattn/go-sqlite3"
|
||||
)
|
||||
|
||||
func scrapeDataUrls(filename string, wc *webCache, gc *geoCache) ([]restaurant, error) {
|
||||
file, err := os.Open(filename)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer file.Close()
|
||||
|
||||
var results []restaurant
|
||||
var scanner = bufio.NewScanner(file)
|
||||
|
||||
for scanner.Scan() {
|
||||
if line := scanner.Text(); len(line) > 0 {
|
||||
parsed, err := url.Parse(line)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
var items []restaurant
|
||||
switch parsed.Host {
|
||||
case "tabelog.com":
|
||||
items = scrape(line, wc, gc, tabelog{})
|
||||
case "www.tripadvisor.com":
|
||||
items = scrape(line, wc, gc, tripadvisor{})
|
||||
default:
|
||||
return nil, errors.New("unsupported review site")
|
||||
}
|
||||
|
||||
results = append(results, items...)
|
||||
}
|
||||
}
|
||||
|
||||
return results, nil
|
||||
}
|
||||
|
||||
func scrapeData(urlsPath, geocachePath, webcachePath string) ([]restaurant, error) {
|
||||
gc, err := newGeoCache(geocachePath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer gc.save()
|
||||
|
||||
wc, err := newWebCache(webcachePath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
restaurants, err := scrapeDataUrls(urlsPath, wc, gc)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return restaurants, nil
|
||||
}
|
||||
|
||||
func computeStnData(restaurants []restaurant, stationsPath string) error {
|
||||
sq, err := newStationQuery(stationsPath)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
for i, _ := range restaurants {
|
||||
r := &restaurants[i]
|
||||
r.closestStnName, r.closestStnDist = sq.closestStation(r.latitude, r.longitude)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func buildFeatures(r restaurant) (delicious, accommodating, affordable, atmospheric float64) {
|
||||
return r.features["food"], r.features["service"], r.features["value"], r.features["atmosphere"]
|
||||
}
|
||||
|
||||
func dumpData(dbPath string, restaraunts []restaurant) error {
|
||||
db, err := sql.Open("sqlite3", dbPath)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer db.Close()
|
||||
|
||||
_, err = db.Exec(`
|
||||
DROP TABLE IF EXISTS reviews;
|
||||
CREATE TABLE reviews(
|
||||
name VARCHAR(100) NOT NULL,
|
||||
url VARCHAR(200) NOT NULL,
|
||||
delicious FLOAT NOT NULL,
|
||||
accommodating FLOAT NOT NULL,
|
||||
affordable FLOAT NOT NULL,
|
||||
atmospheric FLOAT NOT NULL,
|
||||
latitude FLOAT NOT NULL,
|
||||
longitude FLOAT NOT NULL,
|
||||
closestStnDist FLOAT NOT NULL,
|
||||
closestStnName VARCHAR(100) NOT NULL,
|
||||
accessCount INTEGER NOT NULL,
|
||||
id INTEGER PRIMARY KEY
|
||||
)`)
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
for _, r := range restaraunts {
|
||||
delicious, accommodating, affordable, atmospheric := buildFeatures(r)
|
||||
|
||||
_, err = db.Exec(`
|
||||
INSERT INTO reviews(
|
||||
name,
|
||||
url,
|
||||
delicious,
|
||||
accommodating,
|
||||
affordable,
|
||||
atmospheric,
|
||||
latitude,
|
||||
longitude,
|
||||
closestStnDist,
|
||||
closestStnName,
|
||||
accessCount
|
||||
) VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
|
||||
r.name,
|
||||
r.url,
|
||||
delicious,
|
||||
accommodating,
|
||||
affordable,
|
||||
atmospheric,
|
||||
r.longitude,
|
||||
r.latitude,
|
||||
r.closestStnDist,
|
||||
r.closestStnName,
|
||||
0)
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
_, err = db.Exec(`
|
||||
DROP TABLE IF EXISTS categories;
|
||||
CREATE TABLE categories(
|
||||
description VARCHAR(200) NOT NULL,
|
||||
id INTEGER PRIMARY KEY)`)
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
for _, category := range []string{"I prefer quiet places", "I enjoy Mexican Food", "I drive a car"} {
|
||||
if _, err := db.Exec("INSERT INTO categories(description) VALUES (?)", category); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
_, err = db.Exec(`
|
||||
DROP TABLE IF EXISTS history;
|
||||
CREATE TABLE history(
|
||||
date DATETIME NOT NULL,
|
||||
reviewId INTEGER NOT NULL,
|
||||
id INTEGER PRIMARY KEY,
|
||||
FOREIGN KEY(reviewId) REFERENCES reviews(id))`)
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
_, err = db.Exec(`
|
||||
DROP TABLE IF EXISTS historyGroups;
|
||||
CREATE TABLE historyGroups(
|
||||
categoryId INTEGER NOT NULL,
|
||||
categoryValue FLOAT NOT NULL,
|
||||
historyId INTEGER NOT NULL,
|
||||
FOREIGN KEY(historyId) REFERENCES history(id),
|
||||
FOREIGN KEY(categoryId) REFERENCES categories(id))`)
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func main() {
|
||||
restaurants, err := scrapeData("data/urls.txt", "cache/geocache.json", "cache/webcache")
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
if err := computeStnData(restaurants, "data/stations.json"); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
if err := dumpData("data/db.sqlite3", restaurants); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
311
build/scrape.go
311
build/scrape.go
@ -23,204 +23,135 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"database/sql"
|
||||
"errors"
|
||||
"log"
|
||||
"net/url"
|
||||
"os"
|
||||
"sync"
|
||||
|
||||
_ "github.com/mattn/go-sqlite3"
|
||||
"github.com/PuerkitoBio/goquery"
|
||||
)
|
||||
|
||||
func scrapeDataUrls(filename string, wc *webCache, gc *geoCache) ([]restaurant, error) {
|
||||
file, err := os.Open(filename)
|
||||
type restaurant struct {
|
||||
name string
|
||||
address string
|
||||
url string
|
||||
|
||||
features map[string]float64
|
||||
|
||||
latitude float64
|
||||
longitude float64
|
||||
|
||||
closestStnName string
|
||||
closestStnDist float64
|
||||
}
|
||||
|
||||
type scraper interface {
|
||||
index(doc *goquery.Document) (string, []string)
|
||||
review(doc *goquery.Document) (string, string, map[string]float64, error)
|
||||
}
|
||||
|
||||
func makeAbsUrl(ref, base string) (string, error) {
|
||||
b, err := url.Parse(base)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
return "", err
|
||||
}
|
||||
defer file.Close()
|
||||
|
||||
r, err := url.Parse(ref)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return b.ResolveReference(r).String(), nil
|
||||
}
|
||||
|
||||
func decodeReviews(in chan restaurant, out chan restaurant, gc *geoCache) {
|
||||
for {
|
||||
if res, ok := <-in; ok {
|
||||
pos, err := gc.decode(res.address)
|
||||
if err == nil {
|
||||
res.latitude = pos.Latitude
|
||||
res.longitude = pos.Longitude
|
||||
out <- res
|
||||
} else {
|
||||
log.Printf("failed to decode address for %s (%v)", res.url, err)
|
||||
}
|
||||
} else {
|
||||
close(out)
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func scrapeReview(url string, out chan restaurant, wc *webCache, group *sync.WaitGroup, scr scraper) {
|
||||
defer group.Done()
|
||||
|
||||
doc, err := wc.load(url)
|
||||
if err != nil {
|
||||
log.Printf("failed to load review at %s (%v)", url, err)
|
||||
return
|
||||
}
|
||||
|
||||
name, address, features, err := scr.review(doc)
|
||||
if err != nil {
|
||||
log.Printf("failed to scrape review at %s (%v)", url, err)
|
||||
return
|
||||
}
|
||||
|
||||
out <- restaurant{
|
||||
name: name,
|
||||
address: address,
|
||||
features: features,
|
||||
url: url}
|
||||
}
|
||||
|
||||
func scrapeIndex(indexUrl string, out chan restaurant, wc *webCache, scr scraper) {
|
||||
doc, err := wc.load(indexUrl)
|
||||
if err != nil {
|
||||
log.Printf("failed to load index at %s (%v)", indexUrl, err)
|
||||
return
|
||||
}
|
||||
|
||||
nextIndexUrl, reviewUrls := scr.index(doc)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
var group sync.WaitGroup
|
||||
for _, reviewUrl := range reviewUrls {
|
||||
absUrl, err := makeAbsUrl(reviewUrl, indexUrl)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
group.Add(1)
|
||||
go scrapeReview(absUrl, out, wc, &group, scr)
|
||||
}
|
||||
group.Wait()
|
||||
|
||||
if nextIndexUrl == "" {
|
||||
close(out)
|
||||
} else {
|
||||
absUrl, err := makeAbsUrl(nextIndexUrl, indexUrl)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
scrapeIndex(absUrl, out, wc, scr)
|
||||
}
|
||||
}
|
||||
|
||||
func scrape(url string, wc *webCache, gc *geoCache, scr scraper) []restaurant {
|
||||
out := make(chan restaurant, 128)
|
||||
in := make(chan restaurant, 128)
|
||||
|
||||
go scrapeIndex(url, in, wc, scr)
|
||||
go decodeReviews(in, out, gc)
|
||||
|
||||
var results []restaurant
|
||||
var scanner = bufio.NewScanner(file)
|
||||
|
||||
for scanner.Scan() {
|
||||
if line := scanner.Text(); len(line) > 0 {
|
||||
parsed, err := url.Parse(line)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
var items []restaurant
|
||||
switch parsed.Host {
|
||||
case "tabelog.com":
|
||||
items = scrape(line, wc, gc, tabelog{})
|
||||
case "www.tripadvisor.com":
|
||||
items = scrape(line, wc, gc, tripadvisor{})
|
||||
default:
|
||||
return nil, errors.New("unsupported review site")
|
||||
}
|
||||
|
||||
results = append(results, items...)
|
||||
for {
|
||||
if res, ok := <-out; ok {
|
||||
results = append(results, res)
|
||||
} else {
|
||||
return results
|
||||
}
|
||||
}
|
||||
|
||||
return results, nil
|
||||
}
|
||||
|
||||
func scrapeData(urlsPath, geocachePath, webcachePath string) ([]restaurant, error) {
|
||||
gc, err := newGeoCache(geocachePath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer gc.save()
|
||||
|
||||
wc, err := newWebCache(webcachePath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
restaurants, err := scrapeDataUrls(urlsPath, wc, gc)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return restaurants, nil
|
||||
}
|
||||
|
||||
func computeStnData(restaurants []restaurant, stationsPath string) error {
|
||||
sq, err := newStationQuery(stationsPath)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
for i, _ := range restaurants {
|
||||
r := &restaurants[i]
|
||||
r.closestStnName, r.closestStnDist = sq.closestStation(r.latitude, r.longitude)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func buildFeatures(r restaurant) (delicious, accommodating, affordable, atmospheric float64) {
|
||||
return r.features["food"], r.features["service"], r.features["value"], r.features["atmosphere"]
|
||||
}
|
||||
|
||||
func dumpData(dbPath string, restaraunts []restaurant) error {
|
||||
db, err := sql.Open("sqlite3", dbPath)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer db.Close()
|
||||
|
||||
_, err = db.Exec(`
|
||||
DROP TABLE IF EXISTS reviews;
|
||||
CREATE TABLE reviews(
|
||||
name VARCHAR(100) NOT NULL,
|
||||
url VARCHAR(200) NOT NULL,
|
||||
delicious FLOAT NOT NULL,
|
||||
accommodating FLOAT NOT NULL,
|
||||
affordable FLOAT NOT NULL,
|
||||
atmospheric FLOAT NOT NULL,
|
||||
latitude FLOAT NOT NULL,
|
||||
longitude FLOAT NOT NULL,
|
||||
closestStnDist FLOAT NOT NULL,
|
||||
closestStnName VARCHAR(100) NOT NULL,
|
||||
accessCount INTEGER NOT NULL,
|
||||
id INTEGER PRIMARY KEY
|
||||
)`)
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
for _, r := range restaraunts {
|
||||
delicious, accommodating, affordable, atmospheric := buildFeatures(r)
|
||||
|
||||
_, err = db.Exec(`
|
||||
INSERT INTO reviews(
|
||||
name,
|
||||
url,
|
||||
delicious,
|
||||
accommodating,
|
||||
affordable,
|
||||
atmospheric,
|
||||
latitude,
|
||||
longitude,
|
||||
closestStnDist,
|
||||
closestStnName,
|
||||
accessCount
|
||||
) VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
|
||||
r.name,
|
||||
r.url,
|
||||
delicious,
|
||||
accommodating,
|
||||
affordable,
|
||||
atmospheric,
|
||||
r.longitude,
|
||||
r.latitude,
|
||||
r.closestStnDist,
|
||||
r.closestStnName,
|
||||
0)
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
_, err = db.Exec(`
|
||||
DROP TABLE IF EXISTS categories;
|
||||
CREATE TABLE categories(
|
||||
description VARCHAR(200) NOT NULL,
|
||||
id INTEGER PRIMARY KEY)`)
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
for _, category := range []string{"I prefer quiet places", "I enjoy Mexican Food", "I drive a car"} {
|
||||
if _, err := db.Exec("INSERT INTO categories(description) VALUES (?)", category); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
_, err = db.Exec(`
|
||||
DROP TABLE IF EXISTS history;
|
||||
CREATE TABLE history(
|
||||
date DATETIME NOT NULL,
|
||||
reviewId INTEGER NOT NULL,
|
||||
id INTEGER PRIMARY KEY,
|
||||
FOREIGN KEY(reviewId) REFERENCES reviews(id))`)
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
_, err = db.Exec(`
|
||||
DROP TABLE IF EXISTS historyGroups;
|
||||
CREATE TABLE historyGroups(
|
||||
categoryId INTEGER NOT NULL,
|
||||
categoryValue FLOAT NOT NULL,
|
||||
historyId INTEGER NOT NULL,
|
||||
FOREIGN KEY(historyId) REFERENCES history(id),
|
||||
FOREIGN KEY(categoryId) REFERENCES categories(id))`)
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func main() {
|
||||
restaurants, err := scrapeData("data/urls.txt", "cache/geocache.json", "cache/webcache")
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
if err := computeStnData(restaurants, "data/stations.json"); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
if err := dumpData("data/db.sqlite3", restaurants); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
||||
157
build/scraper.go
157
build/scraper.go
@ -1,157 +0,0 @@
|
||||
/*
|
||||
* 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 (
|
||||
"log"
|
||||
"net/url"
|
||||
"sync"
|
||||
|
||||
"github.com/PuerkitoBio/goquery"
|
||||
)
|
||||
|
||||
type restaurant struct {
|
||||
name string
|
||||
address string
|
||||
url string
|
||||
|
||||
features map[string]float64
|
||||
|
||||
latitude float64
|
||||
longitude float64
|
||||
|
||||
closestStnName string
|
||||
closestStnDist float64
|
||||
}
|
||||
|
||||
type scraper interface {
|
||||
index(doc *goquery.Document) (string, []string)
|
||||
review(doc *goquery.Document) (string, string, map[string]float64, error)
|
||||
}
|
||||
|
||||
func makeAbsUrl(ref, base string) (string, error) {
|
||||
b, err := url.Parse(base)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
r, err := url.Parse(ref)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return b.ResolveReference(r).String(), nil
|
||||
}
|
||||
|
||||
func decodeReviews(in chan restaurant, out chan restaurant, gc *geoCache) {
|
||||
for {
|
||||
if res, ok := <-in; ok {
|
||||
pos, err := gc.decode(res.address)
|
||||
if err == nil {
|
||||
res.latitude = pos.Latitude
|
||||
res.longitude = pos.Longitude
|
||||
out <- res
|
||||
} else {
|
||||
log.Printf("failed to decode address for %s (%v)", res.url, err)
|
||||
}
|
||||
} else {
|
||||
close(out)
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func scrapeReview(url string, out chan restaurant, wc *webCache, group *sync.WaitGroup, scr scraper) {
|
||||
defer group.Done()
|
||||
|
||||
doc, err := wc.load(url)
|
||||
if err != nil {
|
||||
log.Printf("failed to load review at %s (%v)", url, err)
|
||||
return
|
||||
}
|
||||
|
||||
name, address, features, err := scr.review(doc)
|
||||
if err != nil {
|
||||
log.Printf("failed to scrape review at %s (%v)", url, err)
|
||||
return
|
||||
}
|
||||
|
||||
out <- restaurant{
|
||||
name: name,
|
||||
address: address,
|
||||
features: features,
|
||||
url: url}
|
||||
}
|
||||
|
||||
func scrapeIndex(indexUrl string, out chan restaurant, wc *webCache, scr scraper) {
|
||||
doc, err := wc.load(indexUrl)
|
||||
if err != nil {
|
||||
log.Printf("failed to load index at %s (%v)", indexUrl, err)
|
||||
return
|
||||
}
|
||||
|
||||
nextIndexUrl, reviewUrls := scr.index(doc)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
var group sync.WaitGroup
|
||||
for _, reviewUrl := range reviewUrls {
|
||||
absUrl, err := makeAbsUrl(reviewUrl, indexUrl)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
group.Add(1)
|
||||
go scrapeReview(absUrl, out, wc, &group, scr)
|
||||
}
|
||||
group.Wait()
|
||||
|
||||
if nextIndexUrl == "" {
|
||||
close(out)
|
||||
} else {
|
||||
absUrl, err := makeAbsUrl(nextIndexUrl, indexUrl)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
scrapeIndex(absUrl, out, wc, scr)
|
||||
}
|
||||
}
|
||||
|
||||
func scrape(url string, wc *webCache, gc *geoCache, scr scraper) []restaurant {
|
||||
out := make(chan restaurant, 128)
|
||||
in := make(chan restaurant, 128)
|
||||
|
||||
go scrapeIndex(url, in, wc, scr)
|
||||
go decodeReviews(in, out, gc)
|
||||
|
||||
var results []restaurant
|
||||
for {
|
||||
if res, ok := <-out; ok {
|
||||
results = append(results, res)
|
||||
} else {
|
||||
return results
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -312,7 +312,7 @@ func main() {
|
||||
|
||||
staticDir := flag.String("static", "static", "path to static files")
|
||||
portNum := flag.Int("port", 8080, "port to serve content on")
|
||||
dataSrc := flag.String("data", "db.sqlite3", "data source for database")
|
||||
dataSrc := flag.String("data", "build/data/db.sqlite3", "data source for database")
|
||||
profile := flag.String("profile", "", "write cpu profile to file")
|
||||
flag.Parse()
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user