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package sandcrawler
import scala.math
import scala.util.parsing.json.JSON
import scala.util.parsing.json.JSONObject
import cascading.flow.FlowDef
import cascading.tuple.Fields
import com.twitter.scalding._
import com.twitter.scalding.typed.TDsl._
class BibjsonScorable extends Scorable {
def getSource(args : Args) : Source = {
TextLine(args("bibjson-input"))
}
def getFeaturesPipe(args : Args)(implicit mode : Mode, flowDef : FlowDef) : TypedPipe[Option[MapFeatures]] = {
getSource(args).read
.toTypedPipe[String](new Fields("line"))
.map { BibjsonScorable.bibjsonToMapFeatures(_) }
}
}
object BibjsonScorable {
def bibjsonToMapFeatures(json : String) : Option[MapFeatures] = {
Scorable.jsonToMap(json) match {
case None => None
case Some(map) => {
if (map contains "title") {
val title = Scorable.getString(map, "title")
val doi = Scorable.getString(map, "doi")
val sha1 = Scorable.getString(map, "sha")
// TODO: year, authors (if available)
if (title == null || title.isEmpty) {
None
} else {
val sf : ScorableFeatures = ScorableFeatures.create(title=title, doi=doi, sha1=sha1)
sf.toSlug match {
case None => None
case Some(slug) => Some(MapFeatures(slug, sf.toString))
}
}
} else {
None
}
}
}
}
}
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