initial commit for socketTextStream

Author: Ken Takagiwa

examples/src/main/python/streaming/nerwork_wordcount.py

@@ -0,0 +1,22 @@
+import sys
+from operator import add
+
+from pyspark.streaming.context import StreamingContext
+from pyspark.streaming.duration import *
+
+if __name__ == "__main__":
+    if len(sys.argv) != 3:
+        print >> sys.stderr, "Usage: wordcount <hostname> <port>"
+        exit(-1)
+    ssc = StreamingContext(appName="PythonStreamingNetworkWordCount", duration=Seconds(1))
+
+    lines = ssc.socketTextStream(sys.argv[1], sys.argv[2])
+    fm_lines = lines.flatMap(lambda x: x.split(" "))
+    filtered_lines = fm_lines.filter(lambda line: "Spark" in line)
+    mapped_lines = fm_lines.map(lambda x: (x, 1))
+    
+    fm_lines.pyprint()
+    filtered_lines.pyprint()
+    mapped_lines.pyprint()
+    ssc.start()
+    ssc.awaitTermination()