an open and extendable protocol including dynamic event types, and a set of sensors and configurable indicators, both for discrete and contextual event notifications. Special aspects of the NESSIE server are the support access control,
getOrCreate() print("Spark Session Started") # Define a schema for the sales data schema = StructType([ StructField("order_id", IntegerType(), True), StructField("customer_id", IntegerType(), True), StructField("product", StringType(), True), StructField("quantity", ...