WebLogic information extraction

OK, how about something like this?:

when HTTP_RESPONSE {
  if { [HTTP::header exists "X-WebLogic-Cluster-List"] }{
    set server_mappings [split [HTTP::header "X-WebLogic-Cluster-List"] "|" ]
    init array if non-existent
    array set ::ServerList { }
    clear pre-existing array entries
    (re-initializing as blank array doesn't seem to do it)
    array unset ::ServerList
    foreach server $server_mappings {
      set ::ServerList($server) [getfield [findclass $server $::server_name_to_IP] " " 2]
    }
  }
}

which would create the following ServerList array:

{
-306262974 10.1.1.10
-572170000 10.1.1.11
-851958269 10.1.1.12
-896443913 10.1.1.13
-937189304 10.1.1.14
}

then once you've extracted the jsession string (i.e. Gsfsafavlaeruae!-306262974!-851958269) from cookie or URI, you can extract the primary & secondary server IP from the array using the WL server IDs like this:

array get ::ServerList [getfield $jsessionstring "!" 2]
array get ::ServerList [getfield $jsessionstring "!" 3]

HTH

/deb