#!/bin/sh
# Author: Jens Koegler <j.koegler@web.de>
# based on the original init.d script
# set debugging on
# set -x
die() {
  usage
  exit 1
}

usage() {
  cat <<EOL
Usage: ${BASH_SOURCE} [start|stop] <instance-name>
Usage: NAME=<instance> ${BASH_SOURCE} [start|stop]
Instance-name can be the environment variable NAME
EOL
}

if ([[ $# -gt 2 ]] || [[ $# -eq 0 ]]); then
  die
fi

RUN=$1
TOMCAT=`basename ${BASH_SOURCE}`
if [ $# -eq 2 ]; then
  printf -v INSTANCE "%s-%s" "$TOMCAT" "$2"
else
  if [[ -z ${NAME} ]]; then
    printf -v INSTANCE "%s" "$TOMCAT"
  else
    printf -v INSTANCE "%s-%s" "$TOMCAT" "$NAME"
  fi
fi

if [[ -f /etc/conf.d/${INSTANCE} ]]; then
  source /etc/conf.d/${INSTANCE}
else
  echo "The configuration file /etc/conf.d/${INSTANCE} does not exist"
  die
fi

: ${CATALINA_HOME:=/usr/share/${TOMCAT}}
: ${CATALINA_BASE:=/var/lib/${INSTANCE}}
: ${CATALINA_TMPDIR:=/var/tmp/${INSTANCE}}

: ${TOMCAT_START:=start}

: ${JPDA_TRANSPORT:="dt_socket"}
: ${JPDA_ADDRESS:="8000"}
: ${JPDA_OPTS="-Xdebug -Xrunjdwp:transport=${JPDA_TRANSPORT},address=${JPDA_ADDRESS},server=y,suspend=n"}

if [ ! -e "${CATALINA_TMPDIR}" ]; then
	mkdir -p "${CATALINA_TMPDIR}"
	chown tomcat:tomcat "${CATALINA_TMPDIR}"
fi

export JAVA_HOME=`java-config ${TOMCAT_JVM:+--select-vm ${TOMCAT_JVM}} --jre-home`
export CLASSPATH="${CATALINA_HOME}/bin/bootstrap.jar:${CATALINA_HOME}/bin/tomcat-juli.jar"

start() {

	if [ ! -e "${CATALINA_TMPDIR}" ]; then
		mkdir -p "${CATALINA_TMPDIR}"
		chown tomcat:tomcat "${CATALINA_TMPDIR}"
	fi

	local DEPEND=$(java-config --query DEPEND --package ${TOMCAT}):${TOMCAT_EXTRA_JARS}
	DEPEND=${DEPEND%:}

	local GCLASSPATH=$(java-config --with-dependencies --classpath "${DEPEND//:/,}"):${TOMCAT_EXTRA_CLASSPATH}
	GCLASSPATH=${GCLASSPATH%:}

	local cmd=java args=
	if [ "${TOMCAT_START}" = "debug" ] || [ "${TOMCAT_START}" = "-security debug" ] ; then
		cmd=jdb
		args="${args} -sourcepath ${CATALINA_HOME}/../../jakarta-tomcat-catalina/catalina/src/share"
	fi
	if [ "${TOMCAT_START}" = "-security debug" ] || [ "${TOMCAT_START}" = "-security start" ]; then
		args="${args} -Djava.security.manager"
		args="${args} -Djava.security.policy=${CATALINA_BASE}/conf/catalina.policy"
	fi
	if [ "${TOMCAT_START}" = "jpda start" ] ; then
		args="${args} ${JPDA_OPTS}"
	fi
	if [ -r "${CATALINA_HOME}"/bin/tomcat-juli.jar ]; then
		args="${args} -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager \
		-Djava.util.logging.config.file=${CATALINA_BASE}/conf/logging.properties"
	fi

	${JAVA_HOME}/bin/${cmd} \
		${JAVA_OPTS} \
		${args} \
		'-XX:OnOutOfMemoryError=kill -9 %%p' \
		-Dcatalina.base="${CATALINA_BASE}" \
		-Dcatalina.home="${CATALINA_HOME}" \
		-Djava.io.tmpdir="${CATALINA_TMPDIR}" \
		-Dgentoo.classpath="${GCLASSPATH//:/,}" \
		-classpath "${CLASSPATH}" \
		org.apache.catalina.startup.Bootstrap \
		${CATALINA_OPTS} \
		${TOMCAT_START}

}

stop() {

	${JAVA_HOME}/bin/java \
		${JAVA_OPTS} \
		${args} \
		-Dcatalina.base="${CATALINA_BASE}" \
		-Dcatalina.home="${CATALINA_HOME}" \
		-Djava.io.tmpdir="${CATALINA_TMPDIR}" \
		-Dgentoo.classpath="${GCLASSPATH//:/,}" \
		-classpath "${CLASSPATH}" \
		org.apache.catalina.startup.Bootstrap stop
    
}

case "${RUN}" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  *)
    die
    ;;
esac