#!/bin/bash
#
# This script provides systemd activation of the tomcat service
# To create clones of this service:
# 1) Create /etc/tomcat/${SERVICE_NAME}.conf from /etc/tomcat/tomcat.conf
# to override tomcat defaults and add the EnvironmentFile=
# 2) Change the location of PIDFile=

#### from /usr/sbin/dtomcat
if [[ -r /usr/share/java-utils/java-functions ]]; then
  . /usr/share/java-utils/java-functions
else
  echo "Can't read Java functions library, aborting" >&2
  exit 1
fi

set_javacmd
 
# CLASSPATH munging
if [[ -n "$JSSE_HOME" ]]; then
  CLASSPATH="${CLASSPATH}:$(build-classpath jcert jnet jsse 2>/dev/null)"
fi
CLASSPATH="${CLASSPATH}:${CATALINA_HOME}/bin/bootstrap.jar"
CLASSPATH="${CLASSPATH}:${CATALINA_HOME}/bin/tomcat-juli.jar"
CLASSPATH="${CLASSPATH}:$(build-classpath commons-daemon 2>/dev/null)"

# See how we were called.
function start() {

    local ret

    # running as root is not recommended in any case!
    if [[ $(id -u) == 0 ]]; then
        echo "ERROR: starting tomcat under uid 0 is not supported" >&2
        echo "       use appropriate User/Group settings in service file" >&2
        echo "       see man systemd.exec for details" >&2
        exit 2
    fi

    if [[ "$SECURITY_MANAGER" = "true" ]]; then
	DSECURITY_MANAGER="-Djava.security.manager"
    else
	unset DSECURITY_MANAGER
    fi
      

    ${JAVACMD} $JAVA_OPTS $CATALINA_OPTS \
    -classpath "$CLASSPATH" \
    -Dcatalina.base="$CATALINA_BASE" \
    -Dcatalina.home="$CATALINA_HOME" \
    -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" \
    -Djava.io.tmpdir="$CATALINA_TMPDIR" ${DSECURITY_MANAGER} \
    -Djava.util.logging.config.file="${CATALINA_BASE}/conf/logging.properties" \
    -Djava.util.logging.manager="org.apache.juli.ClassLoaderLogManager" \
    org.apache.catalina.startup.Bootstrap start
    ret=${?}

    return $ret
}

function stop() {

    local ret

    ${JAVACMD} $JAVA_OPTS \
    -classpath "$CLASSPATH" \
    -Dcatalina.base="$CATALINA_BASE" \
    -Dcatalina.home="$CATALINA_HOME" \
    -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" \
    -Djava.io.tmpdir="$CATALINA_TMPDIR" \
    org.apache.catalina.startup.Bootstrap stop
    ret=${?}

    if [[ ret == 143 ]]; then
        ret=0
    fi

    return $ret
}

function version() {

  exec ${JAVACMD} -classpath ${CATALINA_HOME}/lib/catalina.jar \
    org.apache.catalina.util.ServerInfo

}

# See how we were called.
case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    restart)
        stop
        start
        ;;
    version)
        version
	;;
    *)
    echo "Usage: $0 {start|stop|restart|version}" >&2
    exit 1
esac