From b2c59428fec807ef4dbe4cedcec3614154334817 Mon Sep 17 00:00:00 2001
From: Bryan Newbold <bnewbold@archive.org>
Date: Mon, 21 May 2018 18:36:43 -0700
Subject: spyglass/hbase test examples (from upstream)

---
 .../scala/example/SimpleHBaseSourceExample.scala   | 35 +++++++++++++
 .../example/SimpleHBaseSourceExampleTest.scala     | 58 ++++++++++++++++++++++
 2 files changed, 93 insertions(+)
 create mode 100644 scald-mvp/src/main/scala/example/SimpleHBaseSourceExample.scala
 create mode 100644 scald-mvp/src/test/scala/example/SimpleHBaseSourceExampleTest.scala

diff --git a/scald-mvp/src/main/scala/example/SimpleHBaseSourceExample.scala b/scald-mvp/src/main/scala/example/SimpleHBaseSourceExample.scala
new file mode 100644
index 0000000..697805d
--- /dev/null
+++ b/scald-mvp/src/main/scala/example/SimpleHBaseSourceExample.scala
@@ -0,0 +1,35 @@
+package example
+
+import com.twitter.scalding.{Tsv, Args}
+import parallelai.spyglass.base.JobBase
+import org.apache.log4j.{Level, Logger}
+import parallelai.spyglass.hbase.{HBasePipeConversions, HBaseSource}
+import parallelai.spyglass.hbase.HBaseConstants.SourceMode
+import cascading.tuple.Fields
+import cascading.property.AppProps
+import java.util.Properties
+
+/**
+  * Simple example of HBaseSource usage
+  */
+class SimpleHBaseSourceExample(args: Args) extends JobBase(args) with HBasePipeConversions {
+
+   val isDebug: Boolean = args("debug").toBoolean
+
+   if (isDebug) Logger.getRootLogger.setLevel(Level.DEBUG)
+
+   val output = args("output")
+
+   val hbs = new HBaseSource(
+     "table_name",
+     "quorum_name:2181",
+     new Fields("key"),
+     List("column_family"),
+     List(new Fields("column_name1", "column_name2")),
+     sourceMode = SourceMode.GET_LIST, keyList = List("1", "2", "3"))
+     .read
+     .debug
+     .fromBytesWritable(new Fields("key", "column_name1", "column_name2"))
+     .write(Tsv(output format "get_list"))
+
+ }
diff --git a/scald-mvp/src/test/scala/example/SimpleHBaseSourceExampleTest.scala b/scald-mvp/src/test/scala/example/SimpleHBaseSourceExampleTest.scala
new file mode 100644
index 0000000..d416af8
--- /dev/null
+++ b/scald-mvp/src/test/scala/example/SimpleHBaseSourceExampleTest.scala
@@ -0,0 +1,58 @@
+package example
+
+import org.junit.runner.RunWith
+import com.twitter.scalding.{JobTest, TupleConversions}
+import org.scalatest.FunSpec
+import org.scalatest.junit.JUnitRunner
+import org.slf4j.LoggerFactory
+import org.apache.hadoop.hbase.io.ImmutableBytesWritable
+import cascading.tuple.{Tuple, Fields}
+import org.apache.hadoop.hbase.util.Bytes
+import scala._
+import com.twitter.scalding.Tsv
+import parallelai.spyglass.hbase.HBaseSource
+import parallelai.spyglass.hbase.HBaseConstants.SourceMode
+
+/**
+ * Example of how to define tests for HBaseSource
+ */
+@RunWith(classOf[JUnitRunner])
+class SimpleHBaseSourceExampleTest extends FunSpec with TupleConversions {
+
+  val output = "/tmp/testOutput"
+
+  val log = LoggerFactory.getLogger(this.getClass.getName)
+
+  val sampleData = List(
+    List("1", "kk1", "pp1"),
+    List("2", "kk2", "pp2"),
+    List("3", "kk3", "pp3")
+  )
+
+  JobTest("parallelai.spyglass.hbase.example.SimpleHBaseSourceExample")
+    .arg("test", "")
+    .arg("app.conf.path", "app.conf")
+    .arg("output", output)
+    .arg("debug", "true")
+    .source[Tuple](
+    new HBaseSource(
+      "table_name",
+      "quorum_name:2181",
+      new Fields("key"),
+      List("column_family"),
+      List(new Fields("column_name1", "column_name2")),
+      sourceMode = SourceMode.GET_LIST, keyList = List("1", "2", "3")),
+    sampleData.map(l => new Tuple(l.map(s => {new ImmutableBytesWritable(Bytes.toBytes(s))}):_*)))
+    .sink[Tuple](Tsv(output format "get_list")) {
+      outputBuffer =>
+        log.debug("Output => " + outputBuffer)
+
+        it("should return the test data provided.") {
+          println("outputBuffer.size => " + outputBuffer.size)
+          assert(outputBuffer.size === 3)
+        }
+    }
+    .run
+    .finish
+
+}
-- 
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