stop-all-apache

#!/bin/bash

# OSX brew has a readlink equivalent (installed via 
# 'brew install coreutils')
#
READLINK=readlink
which greadlink &> /dev/null  &&  READLINK=greadlink

THIS_SCRIPT="$(${READLINK} -f ${BASH_SOURCE[0]})"
BIN_DIR=$(dirname ${THIS_SCRIPT})
CONF_HOME=$(dirname ${BIN_DIR})
CONF_ETC_TOP=$CONF_HOME/etc

CONF_ZK_PROPERTIES=${CONF_ETC_TOP}/kafka/zookeeper.properties
CONF_KAFKA_PROPERTIES=${CONF_ETC_TOP}/kafka/server.properties
CONF_REST_PROPERTIES=${CONF_ETC_TOP}/kafka-rest/kafka-rest.properties
CONF_SCHEMA_PROPERTIES=${CONF_ETC_TOP}/schema-registry/schema-registry.properties

ZK_PIDFILE=$CONF_ETC_TOP/cp-zk-service.pid
KAFKA_PIDFILE=$CONF_ETC_TOP/cp-kafka-service.pid
SCHEMA_PIDFILE=$CONF_ETC_TOP/cp-schema-service.pid
REST_PIDFILE=$CONF_ETC_TOP/cp-rest-service.pid

CONF_KAFKA_CLASS='kafka.Kafka'
CONF_SCHEMA_CLASS='io.confluent.kafka.schemaregistry.rest.SchemaRegistryMain'
CONF_REST_CLASS='io.confluent.kafkarest.KafkaRestMain'


# Simple function to shut down the CP Java service based on
#	$1: PID file
#	$2: unique string from Java invocation
#	$3: service name [optional]
#	$4: sleep time in second after shutdown [optional; defaults to 3 seconds]

function stop_cp_service() {
	echo -n "Shutting down ${3} service ... "
	PIDFILE=$1
	if [ -f $PIDFILE ] ; then
		PID=$(cat $PIDFILE)
	else
		PID=`pgrep -fl java | grep -e ${2:-java} | cut -f1 -d' '`
	fi
	[ -n "$PID" ] && kill -9 $PID && rm -f $PIDFILE && sleep ${4:-3}

	echo "done"
}

stop_cp_service $REST_PIDFILE $CONF_REST_CLASS "REST"
stop_cp_service $SCHEMA_PIDFILE $CONF_SCHEMA_CLASS "Schema Registry"
stop_cp_service $KAFKA_PIDFILE $CONF_KAFKA_CLASS "Kafka"
stop_cp_service $ZK_PIDFILE `basename $CONF_ZK_PROPERTIES` "Zookeeper"

exit 0