I haven't done what you're looking to do but I did do a lot of research on
the NT service wrapper for Tomcat while trying to overcome the user logoff
problem that JDK 1.3.0 has. I can see one promising possibility. The
service wrapper uses the wrapper.properties file in the conf sub-directory
to form a command line that is used to launch Tomcat in a separate process.
You can see the commandline in the last line of the file. You could
possibly rewrite the command line to instead run the command processor
(cmd.exe) with a batch file that would run your command and than start
Tomcat. I'm at home and most of my research was done at work so if you have
questions or problems post them and I'll consult my notes at work.
Any number problems could come up with this arrangement.
1). The way the service wrapper launches the sub-process might prevent the
command processor from being launched as desired.
2). The context your running in (i.e. as a service and under the system
account) might make interacting with ClearCase difficult. Pathing and
security are the two most likely issues here.
3). If the ClearCase command takes to long it will causes the service
manager to think the service has failed and shut things down.
Good luck,
Keith Gross
----- Original Message -----
From: Boyce, David <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, April 24, 2001 3:48 PM
Subject: Tomcat and NT service via wrapper script?
> Short version: I need to run Tomcat as a service on NT (and know how to do
> so) but need a hook to run an arbitrary command as part of the service
> startup.
> Details: I'm running Tomcat out of a ClearCase view (for those unfamiliar,
> ClearCase is a dynamic filesystem abstraction with a metalanguage allowing
> you to specify which versions of files you want to see, e.g. "the state as
> of 3:34 PM yesterday" or "my changes but no one else's", etc. But note
that
> my problem has nothing to do with ClearCase per se). Running in a view has
> many advantages, especially for development, as deployment (or rollback)
> becomes as simple as changing a line of metalanguage to select newer (or
> older) versions.
>
> However, the use of ClearCase is a red herring; the only concern is that
the
> "view" must be started with the command "cleartool startview <view-name>"
> before Tomcat runs. I'm doing this on UNIX now and it works just great
with
> a little bit of scripting. But I now need to do the same thing on Windows;
> unfortunately the whole "service" business there seems pretty intractable.
> All I need is a hook to run the startview command prior to Tomcat startup
> but I haven't been able to dig up documentation on how or whether it can
be
> done.
>
> To save time let me enumerate what I don't need: I know how to run Tomcat
as
> a service on NT and have done so successfully. I'm aware of the JDK 1.3.0
> bug which affects this. I realize that ClearCase (which also runs as a
> service on NT) must be started prior to Tomcat and have read up on how to
> edit service dependencies in the registry. All I still need is a way to
run
> an arbitrary command (which happens in my case to be "cleartool
startview")
> as part of the service startup sequence. Has anyone done something
similar?
>
> Thanks in advance,
> David Boyce
>
