spatialdatacommons / cdr-analysis-tools-hadoop Goto Github PK

Hi,

I am checking out how your repo is structured and have some questions. I haven't used java before so I would really appreciate it if you can clarify some points for me.

As an example for route interpolation the following query is executed:
insert overwrite table {provider_prefix}_cdr_by_uid_trip_routing_array_apd partition (pdt) select uid,f_routing(uid,arr,"{osm}","{voronoi}"), pdt from {provider_prefix}_cdr_by_uid_trip_realloc_array_apd where (size(arr)>0 and size(arr)<={max_size_interpolation})

which uses f_routing and that function is in turn defined in initial_hive_commands_interpolation.json as:
"create temporary function f_routing as 'jp.ac.ut.csis.pflow.turkcell.hive.udf.TurkcellRoutingUDF'"

Am I supposed to have these Hive user defined functions somewhere? I downloaded PFlow from sekilab github, but can't find any such related functions.

Similarly some functions like FindPolygon are defined as "create temporary function FindPolygon as 'com.apichon.mobility.hive.udf.FindPolygon'", which are UDFs written by Dr. Apichon Witayangkurn I assume.

Thanks a lot in advance.