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added spark-session, converts context to spark session #75

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added spark-session, converts context to spark session #75

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5 changes: 5 additions & 0 deletions src/clojure/sparkling/core.clj
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@
[org.apache.spark.api.java JavaSparkContext StorageLevels
JavaRDD JavaPairRDD JavaDoubleRDD]
[org.apache.spark HashPartitioner Partitioner]
[org.apache.spark.sql SparkSession]
[org.apache.spark.rdd PartitionwiseSampledRDD PartitionerAwareUnionRDD]
[scala.collection JavaConversions]
[scala.reflect ClassTag$]))
Expand Down Expand Up @@ -741,6 +742,10 @@ so that the wrapped function returns a tuple [f(v),v]"
(conf/app-name app-name))]
(spark-context conf))))

(defn spark-session
[^JavaSparkContext context]
(SparkSession. (.sc context)))

(defn local-spark-context
[app-name]
(let [conf (-> (conf/spark-conf)
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14 changes: 14 additions & 0 deletions test/sparkling/core_test.clj
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Expand Up @@ -10,7 +10,21 @@
))


(deftest spark-session-test
(s/with-context
c
(-> (conf/spark-conf)
(conf/set-sparkling-registrator)
(conf/set "spark.kryo.registrationRequired" "true")
(conf/master "local[*]")
(conf/app-name "api-test"))
(let [spark-session (s/spark-session c)
df (.toDF (.range spark-session 10) (into-array String ["number"]))]
(testing "checking SparkSession instance"
(is (instance? org.apache.spark.sql.SparkSession spark-session)))

(testing "checking DF instance"
(instance? org.apache.spark.sql.Dataset df)))))

(deftest lookup
(s/with-context
Expand Down