scalding dump-grobid-status-code job

1 files changed, 34 insertions, 0 deletions

diff --git a/scalding/src/main/scala/sandcrawler/DumpGrobidStatusCodeJob.scala b/scalding/src/main/scala/sandcrawler/DumpGrobidStatusCodeJob.scala
new file mode 100644
index 0000000..42b3464
--- /dev/null
+++ b/scalding/src/main/scala/sandcrawler/DumpGrobidStatusCodeJob.scala
@@ -0,0 +1,34 @@
+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 org.apache.hadoop.hbase.io.ImmutableBytesWritable
+import org.apache.hadoop.hbase.util.Bytes
+import parallelai.spyglass.base.JobBase
+import parallelai.spyglass.hbase.HBaseConstants.SourceMode
+import parallelai.spyglass.hbase.HBasePipeConversions
+import parallelai.spyglass.hbase.HBaseSource
+
+// Dumps status code for each GROBID-processed file. Good for crawl/corpus
+// analytics, if we consider GROBID status a rough "is this a paper" metric.
+class DumpGrobidStatusCodeJob(args: Args) extends JobBase(args) with HBasePipeConversions {
+
+  val metaPipe : TypedPipe[(String, Long)] = HBaseBuilder.build(args("hbase-table"),
+                     args("zookeeper-hosts"),
+                     List("grobid0:status_code"),
+                     SourceMode.SCAN_ALL)
+    .read
+    .toTypedPipe[(ImmutableBytesWritable,ImmutableBytesWritable)](new Fields("key", "status_code"))
+    .filter { case (_, status_code) => status_code != null }
+    .map { case (key, status_code) =>
+      (Bytes.toString(key.copyBytes()),
+       Bytes.toLong(status_code.copyBytes()))
+    };
+
+  metaPipe.write(TypedTsv[(String,Long)](args("output")))
+
+}