func (ds *CqlModel) listDomainsImpl(seed string, limit int, working bool) ([]DomainInfo, error) {
if limit <= 0 {
return nil, fmt.Errorf("Bad value for limit parameter %d", limit)
}
db := ds.Db
var itr *gocql.Iter
if seed == "" && !working {
itr = db.Query("SELECT dom, claim_tok, claim_time FROM domain_info LIMIT ?", limit).Iter()
} else if seed == "" {
itr = db.Query("SELECT dom, claim_tok, claim_time FROM domain_info WHERE dispatched = true LIMIT ?", limit).Iter()
} else if !working {
itr = db.Query("SELECT dom, claim_tok, claim_time FROM domain_info WHERE TOKEN(dom) > TOKEN(?) LIMIT ?", seed, limit).Iter()
} else { //working==true AND seed != ""
itr = db.Query("SELECT dom, claim_tok, claim_time FROM domain_info WHERE dispatched = true AND TOKEN(dom) > TOKEN(?) LIMIT ?", seed, limit).Iter()
}
var dinfos []DomainInfo
var domain string
var claim_tok gocql.UUID
var claim_time time.Time
for itr.Scan(&domain, &claim_tok, &claim_time) {
dinfos = append(dinfos, DomainInfo{Domain: domain, UuidOfQueued: claim_tok, TimeQueued: claim_time})
}
err := itr.Close()
if err != nil {
return dinfos, err
}
err = ds.annotateDomainInfo(dinfos)
return dinfos, err
}
//collectLinkInfos populates a []LinkInfo list given a cassandra iterator
func (ds *CqlModel) collectLinkInfos(linfos []LinkInfo, rtimes map[string]rememberTimes, itr *gocql.Iter, limit int) ([]LinkInfo, error) {
var domain, subdomain, path, protocol, anerror string
var crawlTime time.Time
var robotsExcluded bool
var status int
for itr.Scan(&domain, &subdomain, &path, &protocol, &crawlTime, &status, &anerror, &robotsExcluded) {
u, err := walker.CreateURL(domain, subdomain, path, protocol, crawlTime)
if err != nil {
return linfos, err
}
urlString := u.String()
qq, yes := rtimes[urlString]
if yes && qq.ctm.After(crawlTime) {
continue
}
linfo := LinkInfo{
Url: urlString,
Status: status,
Error: anerror,
RobotsExcluded: robotsExcluded,
CrawlTime: crawlTime,
}
nindex := -1
if yes {
nindex = qq.ind
linfos[qq.ind] = linfo
} else {
// If you've reached the limit, then we're all done
if len(linfos) >= limit {
break
}
linfos = append(linfos, linfo)
nindex = len(linfos) - 1
}
rtimes[urlString] = rememberTimes{ctm: crawlTime, ind: nindex}
}
return linfos, nil
}