[hive-udf] Adding code, classes and compilation instruction

Author: romainr

hcatalog/README

@@ -1 +1,5 @@
-Blog URL: http://gethue.tumblr.com/post/56804308712/hadoop-tutorial-how-to-access-hive-in-pig-with
+Blog URL
+========
+
+[How to access Hive in Pig with HCatalog in Hue](http://gethue.tumblr.com/post/56804308712/hadoop-tutorial-how-to-access-hive-in-pig-with)
+

hive-udf/README

@@ -0,0 +1,13 @@
+Blog URL
+========
+Coming soon
+
+git clone https://github.com/romainr/hadoop-tutorials-examples.git
+cd hive-udf
+
+# Just use myudf.jar
+
+# Or compile it with:
+javac -cp $(ls /usr/lib/hive/lib/hive-exec*.jar):/usr/lib/hadoop/hadoop-common.jar org/hue/udf/MyUpper.java
+jar -cf myudfs.jar  -C . .
+

hive-udf/myudfs.jar

@@ -0,0 +1,14 @@
+
+package org.hue.udf;
+
+import org.apache.hadoop.hive.ql.exec.UDF;
+import org.apache.hadoop.io.Text;
+ 
+
+public final class MyUpper extends UDF {
+  public Text evaluate(final Text s) {
+    if (s == null) { return null; }
+    return new Text(s.toString().toUpperCase());
+  }
+}
+