diff options
Diffstat (limited to 'scalding/src/main/scala')
-rw-r--r-- | scalding/src/main/scala/sandcrawler/UnGrobidedDumpJob.scala | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/scalding/src/main/scala/sandcrawler/UnGrobidedDumpJob.scala b/scalding/src/main/scala/sandcrawler/UnGrobidedDumpJob.scala new file mode 100644 index 0000000..0ce9167 --- /dev/null +++ b/scalding/src/main/scala/sandcrawler/UnGrobidedDumpJob.scala @@ -0,0 +1,67 @@ +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 UnGrobidedDumpJob does. +class UnGrobidedDumpJob(args: Args) extends JobBase(args) with HBasePipeConversions { + + val output = args("output") + + val allKeys : TypedPipe[(String,String,String,String)] = UnGrobidedDumpJob.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)] = UnGrobidedDumpJob.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 UnGrobidedDumpJob { + + // 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) + } +} |