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package main
import (
log "github.com/Sirupsen/logrus"
)
func (app *App) ScrapeHTML(shops []Shop) {
wait := make(chan bool)
count := 0
for _, shop := range shops {
go app.Scrape(shop, wait)
count++
}
/*
Wait until all go routines finished
*/
for i := 0; i < count; i++ {
<-wait
}
}
func (app *App) Scrape(shop Shop, wait chan bool) {
var W []Angebot
var err error
txFailed := false
app.Tx, err = app.DB.Beginx()
if err != nil {
Fatal(err, "scrape.go: Starting transaction failed. Shop: "+shop.Name)
}
// retry on error
for i := 0; i < 3; i++ {
W = app.ScrapeShop(shop)
W = sanitize_offer(W, shop)
if len(W) >= 1 {
break
}
}
err = app.save_offer(W)
if err != nil {
txFailed = true
Warn(err, "Saving offers failed. Shop: "+shop.Name)
}
err = app.remove_expired(W, shop)
if err != nil {
txFailed = true
Warn(err, "Removing expired offers failed. Shop: "+shop.Name)
}
if txFailed {
err = app.Tx.Rollback()
if err != nil {
Fatal(err, "scrape.go: Rollback transaction failed")
}
} else {
err = app.Tx.Commit()
if err != nil {
Fatal(err, "scrape.go: Committing transaction failed")
}
}
wait <- true
}
func (app *App) ScrapeShop(shop Shop) []Angebot {
switch shop.Name {
case "Bottleworld":
return app.ScrapeBottleWord(shop)
case "MC Whisky":
return app.ScrapeMCWhisky(shop)
case "Rum & Co":
return app.ScrapeRumundCo(shop)
case "Whic":
return app.ScrapeWhic(shop)
case "Whisky.de":
return app.ScrapeWhiskyde(shop)
case "Whiskysite.nl":
return app.ScrapeWhiskysitenl(shop)
case "Whisky World":
return app.ScrapeWhiskyworld(shop)
case "Whiskyzone":
return app.ScrapeWhiskyzone(shop)
default:
log.Println(shop.Name + ": No Crawler")
}
return []Angebot{}
}
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