iRule redirect to https if condition doesn't match

I need to send traffic to appr pools on port 80 based on a specific Host and URI combination and all other traffic should get redirected to https irrespective of Host and URI combination. I have below iRule that works fine for my port 80 work. Please suggest what to append to redirect traffic to https otherwise. Redirect to https should be based on [HTTP::host]

when HTTP_REQUEST {
    switch -glob [HTTP::host][HTTP::uri] {
    "sample1.ehosts.net/word1/word2*" { pool sample1.ehosts.net_word }
    "sample2.ehosts.net/word1/word2*" { pool sample2.ehosts.net_word }
    "sample3.ehosts.net/word1/word2*" { pool sample3.ehosts.net_word }
   }
}