path: root/policy-management/src/main/server-gen/bin/policy-management-controller

#!/usr/bin/env ash

# ============LICENSE_START=======================================================
# ONAP POLICY
# ================================================================================
# Copyright (C) 2017-2020 AT&T Intellectual Property. All rights reserved.
# ================================================================================
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ============LICENSE_END=========================================================

source ${POLICY_HOME}/etc/profile.d/env.sh

SNAME="Policy Management"
PNAME=policy-management
CLASS=org.onap.policy.drools.system.Main

function start() {
    if [ "$DEBUG" = "y" ]; then
        echo "-- start --"
        set -x
    fi

    um_start
    if [ $RETVAL -ne 0 ]; then
        update_monitor off
    else
        update_monitor on
    fi
}

function preRunning() {
    if [ "$DEBUG" = "y" ]; then
        echo "-- preRunning --"
        set -x
    fi

    mkdir -p $_LOGS
    CP=$(ls $_DIR/lib/*.jar | xargs -I X printf ":%s" X)

    # pick up any new changes in the environment every time we start
    source ${POLICY_HOME}/etc/profile.d/env.sh

    ${POLICY_HOME}/bin/configure-maven

    # If 'system.properties' exists, convert it into "-D" JVM arguments.
    # Note that the following also handles property values with spaces.

    systemProperties=$(
        if [ -f "$_DIR/config/system.properties" ]; then
            sed -n -e 's/^[ \t]*\([^ \t#]*\)[ \t]*=[ \t]*\(.*\)$/-D\1=\2/p' \
                $_DIR/config/system.properties
        fi
    )

    cd $_DIR

}

function exec_start() {
    if [ "$DEBUG" = "y" ]; then
        echo "-- exec_start --"
        set -x
    fi

    status
    echo "$_STATUS"
    if [ "$_RUNNING" = "1" ]; then
        exit 1
    fi

    preRunning
    exec $JAVA_HOME/bin/java ${JVM_OPTIONS} -cp $_DIR/config:$_DIR/lib:$CP ${systemProperties} "$@" $CLASS
}

# adding timestamp for stdout and stderr
function timestamp () {
    exec awk '{ print strftime("%Y-%m-%d %H:%M:%S"), $0; fflush(); }'
}

# unmonitored start, does not change monitor status (immutable)
function um_start() {
    if [ "$DEBUG" = "y" ]; then
        echo "-- um_start --"
        set -x
    fi

    status
    if [ "$_RUNNING" = "1" ]; then
        echo ""
        RETVAL=1
        return
    fi

    preRunning
    if [ -e $_LOGS/$PNAME.out.1 ]; then mv $_LOGS/$PNAME.out.1 $_LOGS/$PNAME.out.2; fi
    if [ -e $_LOGS/$PNAME.err.1 ]; then mv $_LOGS/$PNAME.err.1 $_LOGS/$PNAME.err.2; fi
    if [ -e $_LOGS/$PNAME.out ]; then mv $_LOGS/$PNAME.out $_LOGS/$PNAME.out.1; fi
    if [ -e $_LOGS/$PNAME.err ]; then mv $_LOGS/$PNAME.err $_LOGS/$PNAME.err.1; fi

    (
        exec 200>&-
        ( ( nohup $JAVA_HOME/bin/java ${JVM_OPTIONS} -cp $_DIR/config:$_DIR/lib:$CP ${systemProperties} "$@" $CLASS ) | timestamp > $_LOGS/$PNAME.out ) 2>&1 | timestamp > $_LOGS/$PNAME.err &
    )
    sleep 5
    status
    echo $_STATUS
    if [ "$_RUNNING" = "1" ]; then
        RETVAL=0
    else
        echo "Failed to start"
        remove_pid_file
        RETVAL=1
    fi
}

function stop() {
    if [ "$DEBUG" = "y" ]; then
        echo "-- stop --"
        set -x
    fi

    um_stop
    update_monitor off
}

# unmonitored stop, does not change monitor status (immutable)
function um_stop() {
    if [ "$DEBUG" = "y" ]; then
        echo "-- um_stop --"
        set -x
    fi

    status
    if [ "$_RUNNING" = "0" ]; then
        echo $_STATUS
        remove_pid_file
    else
        if [ -n "${TELEMETRY_PASSWORD}" ]; then
            http_proxy= timeout 10 curl -k --silent --user ${TELEMETRY_USER}:${TELEMETRY_PASSWORD} -X DELETE https://localhost:${TELEMETRY_PORT}/policy/pdp/engine -o /dev/null
        else
            http_proxy= timeout 10 curl -k --silent -X DELETE https://localhost:${TELEMETRY_PORT}/policy/pdp/engine -o /dev/null
        fi
        sleep 5
        echo "Stopping $SNAME..."
        _PID_TO_KILL=$_PID
        echo "$SNAME (pid=${_PID_TO_KILL}) is stopping..."
        kill -TERM $_PID_TO_KILL 2>/dev/null
        sleep 5
        check_status_of_pid $_PID_TO_KILL
        if [ "$_RUNNING" = "1" ]; then
            kill -TERM $_PID_TO_KILL
        fi
        while [ "$_RUNNING" = "1" ]; do
            sleep 2
            check_status_of_pid $_PID_TO_KILL
        done
        remove_pid_file
        echo "$SNAME has stopped."
    fi
    RETVAL=0
}

function status() {
    if [ "$DEBUG" = "y" ]; then
        echo "-- status --"
        set -x
    fi

    if [ -f "${_PIDFILE}" ]; then
        _PID=$(cat "${_PIDFILE}")
        check_status_of_pid "$_PID"
    elif [ ${POLICY_DOCKER} ] && _PID=$(pidof -s java); then
        echo "${_PID}" > ${_PIDFILE}
        check_status_of_pid "$_PID"
    else
        _STATUS="$SNAME (no pidfile) is NOT running"
        _RUNNING=0
    fi

    if [ "$_RUNNING" = "1" ]; then
        RETVAL=0
    else
        RETVAL=1
    fi
}

function check_status_of_pid() {
    if [ "$DEBUG" = "y" ]; then
        echo "-- check_status_of_pid --"
        set -x
    fi

    if [ -n "$1" ] && kill -0 $1 2>/dev/null; then
        _STATUS="$SNAME (pid $1) is running"
        _RUNNING=1
    else
        _STATUS="$SNAME (pid $1) is NOT running"
        _RUNNING=0
    fi
}

function remove_pid_file() {
    if [ "$DEBUG" = "y" ]; then
        echo "-- remove_pid_file --"
        set -x
    fi

    if [ -f "${_PIDFILE}" ]; then
        rm "${_PIDFILE}"
    fi
}

function update_monitor() {
    if [ "$DEBUG" = "y" ]; then
        echo "-- update_monitor --"
        set -x
    fi

    STATUS=$1
    if [ -f "${POLICY_HOME}"/etc/monitor/monitor.cfg ]; then
        /bin/sed -i.bak \
            -e "s/^${CONTROLLER}=.*/${CONTROLLER}=${STATUS}/g" \
            ${POLICY_HOME}/etc/monitor/monitor.cfg
    fi
}

# main

if [ "${DEBUG}" = "y" ]; then
    echo "-- $0 $* --"
    set -x
fi

_DIR=${POLICY_HOME}
_LOGS=${POLICY_LOGS}

if [ -z "${POLICY_LOGS}" ]; then
    _LOGS="${POLICY_HOME}"/logs
fi

CONTROLLER=policy-management-controller

RETVAL=0

_PIDFILE=${POLICY_HOME}/PID

case "$1" in
status)
    status
    echo "$_STATUS"
    ;;
start)
    if flock 200; then
        start
    fi 200>>${POLICY_HOME}/etc/monitor/monitor.cfg.lock
    ;;
umstart)
    um_start
    ;;
exec)
    exec_start
    ;;
stop)
    if flock 200; then
        stop
    fi 200>>${POLICY_HOME}/etc/monitor/monitor.cfg.lock
    ;;
umstop)
    um_stop
    ;;
restart)
    if flock 200; then 
       stop
       sleep 2
       start
    fi 200>>${POLICY_HOME}/etc/monitor/monitor.cfg.lock
    ;;
*)
    echo "error: invalid option $@"
    echo "Usage: $0 status|start|stop|restart"
    RETVAL=1
    ;;
esac

exit ${RETVAL}