1 files changed, 52 insertions, 0 deletions
diff --git a/scalding/src/main/scala/sandcrawler/GroupFatcatWorksSubsetJob.scala b/scalding/src/main/scala/sandcrawler/GroupFatcatWorksSubsetJob.scala
new file mode 100644
index 0000000..ea5e26b
--- /dev/null
+++ b/scalding/src/main/scala/sandcrawler/GroupFatcatWorksSubsetJob.scala
@@ -0,0 +1,52 @@
+package sandcrawler
+
+import cascading.pipe.Pipe
+import com.twitter.scalding.Args
+import com.twitter.scalding.Stat
+import com.twitter.scalding.TypedPipe
+import com.twitter.scalding.TypedTsv
+import parallelai.spyglass.base.JobBase
+
+class GroupFatcatWorksSubsetJob(args: Args) extends JobBase(args) {
+
+  val fatcatLhsRowCount = Stat("fatcat-rows-filtered-left", "sandcrawler")
+  val fatcatRhsRowCount = Stat("fatcat-rows-filtered-right", "sandcrawler")
+  val joinedRowCount = Stat("joined-rows", "sandcrawler")
+
+  val fatcatScorableLhs : Scorable = new FatcatScorable()
+  val fatcatPipeLhs : TypedPipe[(String, ReduceFeatures)] = fatcatScorableLhs
+    .getInputPipe(args)
+    .map { r =>
+      fatcatLhsRowCount.inc
+      r
+    }
+
+  val fatcatScorableRhs : Scorable = new FatcatScorableRight()
+  val fatcatPipeRhs : TypedPipe[(String, ReduceFeatures)] = fatcatScorableRhs
+    .getInputPipe(args)
+    .map { r =>
+      fatcatRhsRowCount.inc
+      r
+    }
+
+  val joinedPipe = fatcatPipeLhs
+    .addTrap(TypedTsv(args("output") + ".trapped"))
+    .join(fatcatPipeRhs)
+
+  // TypedTsv doesn't work over case classes.
+  joinedPipe
+    // filter out trivial self-matches (releases are identical)
+    .filter { case (slug, (fatcatFeaturesLeft, fatcatFeaturesRight)) =>
+      Scorable.selfMatchable(fatcatFeaturesLeft, fatcatFeaturesRight)
+    }
+    .map { case (slug, (fatcatFeaturesLeft, fatcatFeaturesRight)) =>
+      joinedRowCount.inc
+      new ReduceOutput(
+        slug,
+        Scorable.computeSimilarity(fatcatFeaturesLeft, fatcatFeaturesRight),
+        fatcatFeaturesLeft.json,
+        fatcatFeaturesRight.json)
+    }
+    .map { entry => (entry.slug, entry.score, entry.json1, entry.json2) }
+    .write(TypedTsv[(String, Int, String, String)](args("output")))
+}