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#!/bin/bash
#
# Copyright (C) 1997-2003 Sistina Software, Inc.  All rights reserved.
# Copyright (C) 2004-2011 Red Hat, Inc.  All rights reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#

export LC_ALL=C
export LANG=C
export PATH=/bin:/sbin:/usr/bin:/usr/sbin

. $(dirname $0)/ocf-shellfuncs
. $(dirname $0)/utils/config-utils.sh
. $(dirname $0)/utils/messages.sh
. $(dirname $0)/utils/ra-skelet.sh

declare MYSQL_MYSQLD=/usr/bin/mysqld_safe
declare MYSQL_ipAddress
declare MYSQL_pid_file="`generate_name_for_pid_file`"

verify_all()
{
	clog_service_verify $CLOG_INIT

	if [ -z "$OCF_RESKEY_name" ]; then
		clog_service_verify $CLOG_FAILED "Invalid Name Of Service"
		return $OCF_ERR_ARGS
	fi

	if [ -z "$OCF_RESKEY_service_name" ]; then
		clog_service_verify $CLOG_FAILED_NOT_CHILD
		return $OCF_ERR_ARGS
	fi

	if [ -z "$OCF_RESKEY_config_file" ]; then
		clog_check_file_exist $CLOG_FAILED_INVALID "$OCF_RESKEY_config_file"
		clog_service_verify $CLOG_FAILED
		return $OCF_ERR_ARGS
	fi

	if [ ! -r "$OCF_RESKEY_config_file" ]; then
		clog_check_file_exist $CLOG_FAILED_NOT_READABLE $OCF_RESKEY_config_file
		clog_service_verify $CLOG_FAILED
		return $OCF_ERR_ARGS
	fi

	if [ -z "$MYSQL_pid_file" ]; then
		clog_service_verify $CLOG_FAILED "Invalid name of PID file"
		return $OCF_ERR_ARGS
	fi

	clog_service_verify $CLOG_SUCCEED
	return 0
}

start()
{
	clog_service_start $CLOG_INIT

	create_pid_directory
	check_pid_file "$MYSQL_pid_file"

	if [ $? -ne 0 ]; then
		clog_check_pid $CLOG_FAILED "$MYSQL_pid_file"
		clog_service_start $CLOG_FAILED
		return $OCF_ERR_GENERIC
	fi

	if [ -n "$OCF_RESKEY_listen_address" ]; then
		MYSQL_ipAddress="$OCF_RESKEY_listen_address"
	else
		clog_looking_for $CLOG_INIT "IP Address"

	        get_service_ip_keys "$OCF_RESKEY_service_name"
	        ip_addresses=`build_ip_list`

		if [ -n "$ip_addresses" ]; then
			for i in $ip_addresses; do
				MYSQL_ipAddress="$i"
				break;
			done
		else
			clog_looking_for $CLOG_FAILED_NOT_FOUND "IP Address"
		fi
	fi

	clog_looking_for $CLOG_SUCCEED "IP Address"

	$MYSQL_MYSQLD --defaults-file="$OCF_RESKEY_config_file" \
		--pid-file="$MYSQL_pid_file" \
		--bind-address="$MYSQL_ipAddress" \
		$OCF_RESKEY_mysqld_options > /dev/null 2>&1 &

	if [ $? -ne 0 ]; then
		clog_service_start $CLOG_FAILED
		return $OCF_ERR_GENERIC
	fi

	declare i=$OCF_RESKEY_startup_wait
	while [ "$i" -gt 0 ]; do
		if [ -f "$MYSQL_pid_file" ]; then
			break;			
		fi
		sleep 1
		let i=$i-1
        done

        if [ "$i" -eq 0 ]; then
		clog_service_start $CLOG_FAILED_TIMEOUT
		return $OCF_ERR_GENERIC
	fi
	
	clog_service_start $CLOG_SUCCEED

	return 0;
}

stop()
{
	clog_service_stop $CLOG_INIT

	stop_generic "$MYSQL_pid_file" "$OCF_RESKEY_shutdown_wait"
	
	if [ $? -ne 0 ]; then
		clog_service_stop $CLOG_FAILED
		return $OCF_ERR_GENERIC
	fi
	
	clog_service_stop $CLOG_SUCCEED
	return 0;
}

status()
{
	clog_service_status $CLOG_INIT

	status_check_pid "$MYSQL_pid_file"
	if [ $? -ne 0 ]; then
		clog_service_status $CLOG_FAILED "$MYSQL_pid_file"
		return $OCF_ERR_GENERIC
	fi

	clog_service_status $CLOG_SUCCEED
	return 0
}

case $1 in
	meta-data)
		cat `echo $0 | sed 's/^\(.*\)\.sh$/\1.metadata/'`
		exit 0
		;;
	validate-all)
		verify_all
		exit $?
		;;
	start)
		verify_all && start
		exit $?
		;;
	stop)
		verify_all && stop
		exit $?
		;;
	status|monitor)
		verify_all
		status
		exit $?
		;;
	restart)
		verify_all
		stop
		start
		exit $?
		;;
	*)
		echo "Usage: $0 {start|stop|status|monitor|restart|meta-data|validate-all}"
		exit $OCF_ERR_UNIMPLEMENTED
		;;
esac