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package sandcrawler
import java.util.Properties
import cascading.property.AppProps
import cascading.tuple.Fields
import com.twitter.scalding._
import com.twitter.scalding.typed.TDsl._
import parallelai.spyglass.base.JobBase
import parallelai.spyglass.hbase.HBaseConstants.SourceMode
import parallelai.spyglass.hbase.HBasePipeConversions
import parallelai.spyglass.hbase.HBaseSource
// Filters for HBase rows which have not had GROBID run on them, but do have
// full CDX metadata, and dumps to a TSV for later extraction by the
// "extraction-ungrobided" job.
//
// Does the same horrible join thing that DumpUnGrobidedJob does.
class DumpUnGrobidedJob(args: Args) extends JobBase(args) with HBasePipeConversions {
val output = args("output")
val allKeys : TypedPipe[(String,String,String,String)] = DumpUnGrobidedJob.getHBaseKeySource(
args("hbase-table"),
args("zookeeper-hosts"))
.read
.fromBytesWritable('key, 'c, 'mime, 'cdx)
.toTypedPipe[(String,String,String,String)]('key, 'c, 'mime, 'cdx)
val existingKeys : TypedPipe[(String,Boolean)] = DumpUnGrobidedJob.getHBaseColSource(
args("hbase-table"),
args("zookeeper-hosts"))
.read
.fromBytesWritable('key)
.toTypedPipe[String]('key)
.map{ key => (key, true) }
val missingKeys : TypedPipe[(String,String,String,String)] = allKeys
.groupBy(_._1)
.leftJoin(existingKeys.groupBy(_._1))
.toTypedPipe
.collect { case (key, ((_, c, mime, cdx), None)) => (key, c, mime, cdx) }
missingKeys
.write(TypedTsv[(String,String,String,String)](output))
}
object DumpUnGrobidedJob {
// eg, "wbgrp-journal-extract-0-qa",7 "mtrcs-zk1.us.archive.org:2181"
def getHBaseColSource(hbaseTable: String, zookeeperHosts: String) : HBaseSource = {
HBaseBuilder.build(
hbaseTable,
zookeeperHosts,
List("grobid0:status_code"),
SourceMode.SCAN_ALL)
}
def getHBaseKeySource(hbaseTable: String, zookeeperHosts: String) : HBaseSource = {
HBaseBuilder.build(
hbaseTable,
zookeeperHosts,
List("f:c", "file:mime", "file:cdx"),
SourceMode.SCAN_ALL)
}
}
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