#!/bin/bash

#

# This script provides systemd activation of the tomcat service

# To create clones of this service:

# 1) SERVICE_NAME must be defined before calling this script

# 2) Create /etc/sysconfig/${SERVICE_NAME} from /etc/sysconfig/tomcat

# to override tomcat defaults

# SERVICE_NAME is a required value only if the service name is 

# different from 'tomcat'

#

NAME="${SERVICE_NAME:-tomcat}"

#I'll bet this isn't required. 

# unset ISBOOT

# For SELinux we need to use 'runuser' not 'su'

if [ -x "/sbin/runuser" ]; then

    SU="/sbin/runuser -s /bin/sh"

else

    SU="/bin/su -s /bin/sh"

fi

# Path to the tomcat launch script

TOMCAT_SCRIPT="/usr/sbin/tomcat-jsvc"

# Define the tomcat username

TOMCAT_USER="${TOMCAT_USER:-tomcat}"

# TOMCAT_LOG should be different from catalina.out.

# Usually the below config is all that is necessary

TOMCAT_LOG=/var/log/${NAME}/${NAME}-sysd.log

# Get the tomcat config (use this for environment specific settings)

TOMCAT_CFG="/etc/tomcat/tomcat.conf"

if [ -r "$TOMCAT_CFG" ]; then

    . $TOMCAT_CFG

fi

# Get instance specific config file

if [ -r "/etc/sysconfig/${NAME}" ]; then

    . /etc/sysconfig/${NAME}

fi

function parseOptions() {

    options=""

    options="$options $(

                 awk '!/^#/ && !/^$/ { ORS=" "; print "export ", $0, ";" }' \

                 $TOMCAT_CFG

             )"

    if [ -r "/etc/sysconfig/${NAME}" ]; then

        options="$options $(

                     awk '!/^#/ && !/^$/ { ORS=" ";

                                           print "export ", $0, ";" }' \

                     /etc/sysconfig/${NAME}

                 )"

    fi

    TOMCAT_SCRIPT="$options ${TOMCAT_SCRIPT}"

}

# See how we were called.

function start() {

    # fix permissions on the log and pid files

    export CATALINA_PID="/var/run/${NAME}.pid"

    touch $CATALINA_PID 2>&1 

    if [ "$?" -eq "0" ]; then

      chown ${TOMCAT_USER}:${TOMCAT_USER} $CATALINA_PID

    fi

    touch $TOMCAT_LOG 2>&1 

    if [ "$?" -eq "0" ]; then

      chown ${TOMCAT_USER}:${TOMCAT_USER} $TOMCAT_LOG

    fi

    # if jsvc installed and USE_JSVC=true

    # then start as root and use jsvc to drop privileges

    if [ -x /usr/bin/jsvc ]; then

      TOMCAT_USER="root"

    fi

    parseOptions  

    if [ "$SECURITY_MANAGER" = "true" ]; then

       $SU - $TOMCAT_USER -c "${TOMCAT_SCRIPT} start-security" >> $TOMCAT_LOG 2>&1 

    else

       $SU - $TOMCAT_USER -c "${TOMCAT_SCRIPT} start" >> $TOMCAT_LOG 2>&1

    fi

}

function stop() {

    # if jsvc installed and USE_JSVC=true

    # then start as root and use jsvc to drop privileges

    if [ -x /usr/bin/jsvc ]; then

      TOMCAT_USER="root"

    fi

    parseOptions  

    $SU - $TOMCAT_USER -c "${TOMCAT_SCRIPT} stop" >> $TOMCAT_LOG 2>&1

}

# See how we were called.

case "$1" in

    start)

        start

        ;;

    stop)

        stop

        ;;

    restart)

        stop

        start

        ;;

esac