Need users to be directed to specific pool members based on URI

[root@ve10:Active] config  b virtual bar list
virtual bar {
   snat automap
   destination 172.28.19.79:443
   ip protocol 6
   rules myrule
   profiles {
      clientssl {
         clientside
      }
      http {}
      tcp {}
   }
}
[root@ve10:Active] config  b pool cmf_ap list
pool cmf_ap {
   members {
      10.21.1.121:7777 {}
      10.21.1.122:7777 {}
   }
}
[root@ve10:Active] config  b pool cmf_na list
pool cmf_na {
   members {
      10.21.1.121:7778 {}
      10.21.1.122:7778 {}
   }
}
[root@ve10:Active] config  b pool usat list
pool usat {
   members {
      10.21.1.121:7777 {}
      10.21.1.121:7778 {}
      10.21.1.122:7777 {}
      10.21.1.122:7778 {}
   }
}
[root@ve10:Active] config  b rule myrule list
rule myrule {
   when HTTP_REQUEST {
   switch -glob [string tolower [HTTP::path]] {
      "/cmf_ap*" { pool cmf_ap }
      "/cmf_na*" { pool cmf_na }
      "/usat*" { pool usat }
      default {
          do something
      }
   }
}
}