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#!/bin/bash
#
#https://wiki.debian.org/LSBInitScripts
### BEGIN INIT INFO
# Provides:          tomcat8
# Required-Start:    $local_fs $remote_fs $network
# Required-Stop:     $local_fs $remote_fs $network
# Should-Start:      $named
# Should-Stop:       $named
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start Tomcat.
# Description:       Start the Tomcat servlet engine.
### END INIT INFO

# Run Tomcat 8 as this user ID and group ID
TOMCAT8_USER=tomcat8
TOMCAT8_GROUP=tomcat8

# this is a work-around until there is a suitable runtime replacement
# for dpkg-architecture for arch:all packages
# this function sets the variable JDK_DIRS
find_jdks()
{
    for java_version in 9 8 7
    do
        for jvmdir in /usr/lib/jvm/java-${java_version}-openjdk-* \
                      /usr/lib/jvm/jdk-${java_version}-oracle-* \
                      /usr/lib/jvm/jre-${java_version}-oracle-*
        do
            if [ -d "${jvmdir}" ]
            then
                JDK_DIRS="${JDK_DIRS} ${jvmdir}"
            fi
        done
    done

    # Add older non multi arch installations
    JDK_DIRS="${JDK_DIRS} /usr/lib/jvm/java-7-oracle"
}

# The first existing directory is used for JAVA_HOME (if JAVA_HOME is not
# defined in $DEFAULT)
JDK_DIRS="/usr/lib/jvm/default-java"
find_jdks

# Look for the right JVM to use
for jdir in $JDK_DIRS; do
    if [ -r "$jdir/bin/java" -a -z "${JAVA_HOME}" ]; then
        JAVA_HOME="$jdir"
    fi
done
export JAVA_HOME

export CATALINA_HOME=/opt/tomcat8
export PATH=$JAVA_HOME/bin:$PATH

start() {
 echo "Starting Tomcat 8..."
 /bin/su -s /bin/bash $TOMCAT8_USER -c $CATALINA_HOME/bin/startup.sh
}
stop() {
 echo "Stopping Tomcat 8..."
 /bin/su -s /bin/bash $TOMCAT8_USER -c '$CATALINA_HOME/bin/shutdown.sh -force'
}
case $1 in
  start|stop) $1;;
  restart) stop; start;;
  *) echo "Usage : $0 <start|stop|restart>"; exit 1;;
esac

exit 0