/
webscraper.go
81 lines (69 loc) · 1.93 KB
/
webscraper.go
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package main
import (
"io/ioutil"
"log"
"github.com/moovweb/gokogiri"
"github.com/moovweb/gokogiri/xpath"
"strings"
"fmt"
)
func parse(trackAbbrev string) ([]Session) {
var sessions []Session
input, err := ioutil.ReadFile(fmt.Sprintf("resources/%s.html", trackAbbrev))
if err != nil {
log.Fatalf("error reading file %s", trackAbbrev)
}
xml, err := gokogiri.ParseXml(input)
if err != nil {
log.Fatalf("error parsing xml")
}
xp1 := xpath.Compile("//div[starts-with(@id, 'session_')]")
xp2 := xpath.Compile(".//span[@class='title']")
xp3 := xpath.Compile(".//span[@class='abbreviation']")
xp4 := xpath.Compile(".//span[@class='abstract']")
divs, err := xml.Search(xp1)
if err != nil {
log.Fatalf("error finding divs")
}
for _, div := range divs {
var session Session
titles, err2 := div.Search(xp2)
if (err2 != nil) {
log.Printf("%v", err2)
session.Title = "unknown"
} else if (len(titles) == 0) {
log.Printf("no titles")
session.Title = "unknown"
} else {
session.Title = strings.TrimSpace(titles[0].Content())
}
abbreviations, err2 := div.Search(xp3)
if (err2 != nil) {
log.Printf("%v", err2)
session.SessionId = "UKNOWN"
} else if (len(abbreviations) == 0) {
log.Printf("no abbreviations")
session.SessionId = "UKNOWN"
} else {
firstAbbreviation := strings.TrimSpace(abbreviations[0].Content())
session.SessionId = strings.Split(firstAbbreviation, " ")[0]
}
if (strings.Contains(session.SessionId, "-R")) {
log.Printf("skipping repeat session %s", session.SessionId)
continue
}
abstracts, err2 := div.Search(xp4)
if (err2 != nil) {
log.Printf("%v", err2)
session.Abstract = "unknown"
} else if (len(abstracts) == 0) {
log.Printf("no abbreviations")
session.Abstract = "unknown"
} else {
firstAbstract := strings.TrimSpace(abstracts[0].Content())
session.Abstract = firstAbstract
}
sessions = append(sessions, session)
}
return sessions
}