HOT TO USE

1) get datas from opensearch
get 500 datas/file * 50 times * 12 monthes on YYYY

$ ls
get_from_opensearch.rb
$ ruby get_from_opensearch YYYY


2) create csv file
create file to import from datas in import/YYYY directory
*before create, set shelf info on create_csv.rb
*if you want to modify item_identifier prefix, set 'pre' value setted on top of the .rb

$ ls
create_csv.rb
$ ruby create_csv.rb YYYY