Websphere data group irule

I have tried the following; but get the TCL error when the rule is hit and am unable to access the site at all

01220001:3: TCL error: /Common/WEBSPHERETEST2 - invalid command name "}" while executing "}"

when HTTP_REQUEST {
switch -glob [string tolower [HTTP::uri]] if{[class match [HTTP::uri] starts_with URL_DATAGROUP]
{
pool WEBSPHERE_POOL_9086
}
else {
HTTP::respond 200 content {
Wrong URL
     }
    }
 }
}