From ea9e8990139973d6f5fdf52a470bf6516c7d8c2f Mon Sep 17 00:00:00 2001
From: Bryan Newbold <bnewbold@archive.org>
Date: Fri, 2 Aug 2019 17:11:57 -0700
Subject: FatcatScorable and ScoreSelfFatcat job

---
 .../main/scala/sandcrawler/ScoreSelfFatcat.scala   | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 scalding/src/main/scala/sandcrawler/ScoreSelfFatcat.scala

(limited to 'scalding/src/main/scala/sandcrawler/ScoreSelfFatcat.scala')

diff --git a/scalding/src/main/scala/sandcrawler/ScoreSelfFatcat.scala b/scalding/src/main/scala/sandcrawler/ScoreSelfFatcat.scala
new file mode 100644
index 0000000..d1a94fe
--- /dev/null
+++ b/scalding/src/main/scala/sandcrawler/ScoreSelfFatcat.scala
@@ -0,0 +1,43 @@
+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 ScoreSelfFatcatJob(args: Args) extends JobBase(args) {
+
+  val fatcatRowCount = Stat("fatcat-rows-filtered", "sandcrawler")
+  val joinedRowCount = Stat("joined-rows", "sandcrawler")
+
+  val fatcatScorable : Scorable = new FatcatScorable()
+  val fatcatPipe : TypedPipe[(String, ReduceFeatures)] = fatcatScorable
+    .getInputPipe(args)
+    .map { r =>
+      fatcatRowCount.inc
+      r
+    }
+
+  val joinedPipe = fatcatPipe
+    .addTrap(TypedTsv(args("output") + ".trapped"))
+    .join(fatcatPipe)
+
+  // 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")))
+}
-- 
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