Just a simple shell watchdog...

watchdog.bash

#!/bin/bash

PS=/bin/ps
GREP=/bin/grep
PROCESS_NAME=wftpserver

START="/etc/init.d/wftpserver start"

NOP=/bin/true

LOGGER=/usr/bin/logger

$PS -ef | $GREP -v grep | $GREP $PROCESS_NAME > /dev/null 2>&1

case "$?" in
    0)
    #Its running
    $LOGGER "$PROCESS_NAME is RUNNING OK. Relax..."
    $NOP
    ;;
    1)
    $LOGGER "$PROCESS_NAME is NOT RUNNING. Starting $PROCESS_NAME and sending notices."
    $START
esac

exit