From b72c234dd35c3eb807e8050385adf697dcf97fad Mon Sep 17 00:00:00 2001
From: rotem <rotem.hermon@gmail.com>
Date: Sun, 16 Jun 2013 12:09:42 +0300
Subject: Adding HBase raw taps and source, bumping needed dependency versions,
 bumping scala version

---
 .../parallelai/spyglass/hbase/HBaseRawSource.scala | 62 ++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 src/main/scala/parallelai/spyglass/hbase/HBaseRawSource.scala

(limited to 'src/main/scala')

diff --git a/src/main/scala/parallelai/spyglass/hbase/HBaseRawSource.scala b/src/main/scala/parallelai/spyglass/hbase/HBaseRawSource.scala
new file mode 100644
index 0000000..1fc6f7d
--- /dev/null
+++ b/src/main/scala/parallelai/spyglass/hbase/HBaseRawSource.scala
@@ -0,0 +1,62 @@
+package parallelai.spyglass.hbase
+
+import cascading.pipe.Pipe
+import cascading.pipe.assembly.Coerce
+import cascading.scheme.Scheme
+import cascading.tap.{ Tap, SinkMode }
+import cascading.tuple.Fields
+import org.apache.hadoop.mapred.{ RecordReader, OutputCollector, JobConf }
+import org.apache.hadoop.hbase.util.Bytes
+import scala.collection.JavaConversions._
+import scala.collection.mutable.WrappedArray
+import com.twitter.scalding._
+import org.apache.hadoop.hbase.io.ImmutableBytesWritable
+import org.apache.hadoop.hbase.client.Scan
+import org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil
+import org.apache.hadoop.hbase.util.Base64
+import java.io.ByteArrayOutputStream
+import java.io.DataOutputStream
+
+object HBaseRawSource {
+  def convertScanToString(scan: Scan) = {
+    val out = new ByteArrayOutputStream();
+    val dos = new DataOutputStream(out);
+    scan.write(dos);
+    Base64.encodeBytes(out.toByteArray());
+  }
+}
+class HBaseRawSource(
+  tableName: String,
+  quorumNames: String = "localhost",
+  familyNames: Array[String],
+  writeNulls: Boolean = true,
+  base64Scan:String = null,
+  sinkMode: SinkMode = null) extends Source {
+
+  override val hdfsScheme = new HBaseRawScheme(familyNames, writeNulls)
+    .asInstanceOf[Scheme[JobConf, RecordReader[_, _], OutputCollector[_, _], _, _]]
+
+  override def createTap(readOrWrite: AccessMode)(implicit mode: Mode): Tap[_, _, _] = {
+    val hBaseScheme = hdfsScheme match {
+      case hbase: HBaseRawScheme => hbase
+      case _ => throw new ClassCastException("Failed casting from Scheme to HBaseRawScheme")
+    }
+    mode match {
+      case hdfsMode @ Hdfs(_, _) => readOrWrite match {
+        case Read => {
+          new HBaseRawTap(quorumNames, tableName, hBaseScheme, base64Scan, sinkMode match {
+            case null => SinkMode.KEEP
+            case _ => sinkMode
+          }).asInstanceOf[Tap[_,_,_]]
+        }
+        case Write => {
+          new HBaseRawTap(quorumNames, tableName, hBaseScheme, base64Scan, sinkMode match {
+            case null => SinkMode.UPDATE
+            case _ => sinkMode
+          }).asInstanceOf[Tap[_,_,_]]
+        }
+      }
+      case _ => super.createTap(readOrWrite)(mode)
+    }
+  }
+}
-- 
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