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	#!/bin/sh
	#
	#
	# WAS
	#
	# Description: Manages a Websphere Application Server as an HA resource
	#
	#
	# Author: Alan Robertson
	# Support: linux-ha@lists.linux-ha.org
	# License: GNU General Public License (GPL)
	# Copyright: (C) 2002 - 2005 International Business Machines, Inc.
	#
	#
	# An example usage in /etc/ha.d/haresources:
	# node1 10.0.0.170 WAS::/opt/WebSphere/ApplicationServer/config/server-cfg.xml
	#
	# See usage() function below for more details...
	#
	# OCF parameters are as below:
	# OCF_RESKEY_config
	# (WAS-configuration file, used for the single server edition of WAS)
	# OCF_RESKEY_port
	# (WAS-<snoop>-port-number, used for the advanced edition of WAS)

	#######################################################################
	# Initialization:

	: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
	. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs

	#######################################################################

	WASDIR=/opt/WebSphere/AppServer
	if
	[ ! -d $WASDIR ]
	then
	WASDIR=/usr/WebSphere/AppServer
	fi
	STARTTIME=300 # 5 minutes
	DEFAULT_WASPORTS="9080"
	#
	#
	WASBIN=$WASDIR/bin
	DEFAULT=$WASDIR/config/server-cfg.xml

	#
	# Print usage message
	#
	usage() {
	methods=`WAS_methods \| grep -v methods`
	methods=`echo $methods \| tr ' ' '\|'`
	cat <<-END
	usage: $0 ($methods)

	For the single server edition of WAS, you have to set the following
	enviroment virable:
	OCF_RESKEY_config
	(WAS-configuration file)

	For the advanced edition of WAS, you have to set the following
	enviroment virable:
	OCF_RESKEY_port
	(WAS-<snoop>-port-number)

	$0 manages a Websphere Application Server (WAS) as an HA resource

	The 'start' operation starts WAS.
	The 'stop' operation stops WAS.
	The 'status' operation reports whether WAS is running
	The 'monitor' operation reports whether the WAS seems to be working
	(httpd also needs to be working for this case)
	The 'validate-all' operation reports whether the OCF instance parameter (OCF_RESKEY_config or OCF_RESKEY_port) is valid
	The 'methods' operation reports on the methods $0 supports

	This is known to work with the Single Server edition of Websphere,
	and is believed to work with the Advanced edition too.
	Since the Advanced Edition has no configuration file (it's in a the
	database) you need to give a port number instead of a
	configuration file for this config parameter.

	The default configuration file for the single server edition is:
	$DEFAULT

	The default snoop-port for the advanced edition is: $DEFAULT_WASPORTS

	The start and stop operations must be run as root.

	The status operation will report a pid of "-" for the
	WAS root process using unless it is run as root.

	If you don't have xmllint on your system, parsing of WAS
	configuration files is very primitive.
	In this case, the port specification we need from the XML
	config file has to be on the same line as the
	first part of the <transports/> tag.

	We run servlet/snoop on the first transport port listed in
	the config file for the "monitor" operation.

	END
	}

	meta_data() {
	cat <<END
	<?xml version="1.0"?>
	<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
	<resource-agent name="WAS">
	<version>1.0</version>

	<longdesc lang="en">
	Resource script for WAS. It manages a Websphere Application Server (WAS) as
	an HA resource.
	</longdesc>
	<shortdesc lang="en">Manages a WebSphere Application Server instance</shortdesc>

	<parameters>
	<parameter name="config" unique="0" required="0">
	<longdesc lang="en">
	The WAS-configuration file.
	</longdesc>
	<shortdesc lang="en">configration file</shortdesc>
	<content type="string" default="$DEFAULT" />
	</parameter>

	<parameter name="port" unique="0">
	<longdesc lang="en">
	The WAS-(snoop)-port-number.
	</longdesc>
	<shortdesc lang="en">port</shortdesc>
	<content type="integer" default="$DEFAULT_WASPORTS" />
	</parameter>
	</parameters>

	<actions>
	<action name="start" timeout="300" />
	<action name="stop" timeout="300" />
	<action name="status" depth="0" timeout="30" interval="10" />
	<action name="monitor" depth="0" timeout="30" interval="10" />
	<action name="validate-all" timeout="5" />
	<action name="meta-data" timeout="5" />
	<action name="methods" timeout="5" />
	</actions>
	</resource-agent>
	END
	}

	#
	# Reformat the XML document in a sort of canonical form
	# if we can. If we don't have xmllint, we just cat it out
	# and hope for the best ;-)
	#
	xmlcat() {
	if
	[ "X$XMLcat" = X ]
	then
	XMLcat=`which xmllint 2>/dev/null`
	if
	[ "X${XMLcat}" = X -o ! -x "${XMLcat}" ]
	then
	XMLcat=cat
	else
	XMLcat="$XMLcat --recover --format"
	fi
	fi
	for j in "$@"
	do
	${XMLcat} "$j"
	done
	}

	#
	#This is a bit skanky, but it works anyway...
	#
	#<transports xmi:type="applicationserver:HTTPTransport" xmi:id="HttpTransport_1" hostname="*" port="9080"/>
	#<transports xmi:type="applicationserver:HTTPTransport" xmi:id="HttpTransport_2" hostname="*" port="9443" sslEnabled="true"/>
	#<transports xmi:type="applicationserver:HTTPTransport" xmi:id="HttpTransport_3" hostname="*" port="9090" external="false"/>
	#
	# It's not really skanky if we can find xmllint on the system, because it
	# reformats tags so they are all on one line, which is all we we need...
	#

	#
	# Get the numbers of the ports WAS should be listening on...
	#
	# If we don't have xmllint around, then the applicationserver and the
	# port= specification have to be on the same line in the XML config file.
	#
	GetWASPorts() {
	case $1 in
	[0-9]*) echo "$1" \| tr ',' '\012';;
	*)
	xmlcat $1 \| grep -i 'transports.*applicationserver:HTTPTransport' \|
	grep port= \|
	sed -e 's%.port= "* *%%' \
	-e 's%[^0-9][^0-9].$%%'
	# Delete up to port=, throw away optional quote and optional
	# white space.
	# Throw away everything after the first non-digit.
	# This should leave us the port number all by itself...
	esac
	}

	#
	# We assume that the first port listed in the <transports/>
	# is the one we should run servlet/snoop on.
	#
	GetWASSnoopPort() {
	GetWASPorts "$@" \| head -n1
	}

	#
	# Return information on the processname/id for the WAS ports
	#
	# pid/java is the expected output. Several lines, one per port...
	#
	#
	WASPortInfo() {
	pat=""
	once=yes
	PortCount=0
	for j in $*
	do
	case $pat in
	"") pat="$j";;
	*) pat="$pat\|$j";;
	esac
	PortCount=`expr $PortCount + 1`
	done
	netstat -ltnp 2>/dev/null\| egrep -i "($pat) .LISTEN" \| sed 's%.LISTEN *%%'
	}

	#
	# Return the number of WAS ports which are open
	#
	CheckWASPortsInUse() {
	count=`WASPortInfo "$@" \| wc -l`
	echo $count
	}

	#
	# Return the pid(s) of the processes that have WAS ports open
	#
	WASPIDs() {
	WASPortInfo "$@" \| sort -u \| cut -f1 -d/
	}

	#
	# The version of ps that returns all processes and their (long) args
	# It's only used by WAS_procs, which isn't used for anything ;-)
	#
	ps_long() {
	ps axww
	}


	#
	# The total set of WAS processes (single server only)
	#
	WAS_procs() {
	ps_long \| grep -i "config=$1" \| grep -i java \| cut -d' ' -f1
	}



	#
	# methods: What methods/operations do we support?
	#
	WAS_methods() {
	cat <<-!
	start
	stop
	status
	methods
	validate-all
	meta-data
	usage
	!
	if
	have_binary $WGET
	then
	echo monitor
	fi
	}

	#
	# Return WAS status (silently)
	#
	WAS_status() {
	WASPorts=`GetWASPorts $1`
	PortsInUse=`CheckWASPortsInUse $WASPorts`
	case $PortsInUse in
	0) false;;
	*) true;;
	esac
	}

	#
	# Report on WAS status to stdout...
	#
	WAS_report_status() {
	WASPorts=`GetWASPorts $1`
	PortCount=`echo $WASPorts \| wc -w`
	PortCount=`echo $PortCount`
	PortsInUse=`CheckWASPortsInUse $WASPorts`
	case $PortsInUse in
	0) ocf_log debug "WAS: server $1 is stopped."; return $OCF_NOT_RUNNING;;
	*)
	pids=`WASPIDs $WASPorts`
	if
	[ $PortsInUse -ge $PortCount ]
	then
	ocf_log debug "WAS: server $1 is running (pid" $pids "et al)."
	else
	ocf_log debug "WAS: server $1 is running (pid $pids et al) but not listening on all ports."
	fi
	return $OCF_SUCCESS;;
	esac
	}

	#
	# Monitor WAS - does it really seem to be working?
	#
	# For this we invoke the snoop applet via wget.
	#
	# This is actually faster than WAS_status above...
	#
	WAS_monitor() {
	trap '[ -z "$tmpfile" ] \|\| rmtempfile "$tmpfile"' 0
	tmpfile=`maketempfile` \|\| return 1
	SnoopPort=`GetWASSnoopPort $1`
	output=`$WGET -nv -O$tmpfile http://localhost:$SnoopPort/servlet/snoop 2>&1`
	rc=$?
	if
	[ $rc -eq 0 ]
	then
	if
	grep -i 'user-agent.*Wget' $tmpfile >/dev/null
	then
	: OK
	else
	ocf_log "err" "WAS: $1: no user-agent from snoop application"
	rc=$OCF_ERR_GENERIC
	fi
	else
	ocf_log "err" "WAS: $1: wget failure: $output"
	rc=$OCF_ERR_GENERIC
	fi
	return $rc
	}

	#
	# Start WAS instance
	#
	WAS_start() {
	# Launch Arguments:
	#
	# -configFile <configFile>
	# -nodeName <nodeName>
	# -serverName <serverName>
	# -oltEnabled
	# -oltHost <hostname>
	# -oltPort <port>
	# -debugEnabled
	# -jdwpPort <port>
	# -debugSource <sourcePath>
	# -serverTrace <traceString>
	# -serverTraceFile <traceFile>
	# -script [<scriptFile>]
	# -platform <platformName>
	# -noExecute
	# -help
	if
	[ -x $WASBIN/startServer.sh ]
	then
	cmd="$WASBIN/startServer.sh -configFile $1"
	else
	cmd="$WASBIN/startupServer.sh"
	fi

	if
	ocf_run $cmd
	then
	if
	WAS_wait_4_start $STARTTIME "$@"
	then
	#true
	return $OCF_SUCCESS
	else
	ocf_log "err" "WAS server $1 did not start correctly"
	return $OCF_ERR_GENERIC
	fi
	else
	#false
	return $OCF_ERR_GENERIC
	fi
	}

	#
	# Wait for WAS to actually start up.
	#
	# It seems to take between 30 and 60 seconds for it to
	# start up on a trivial WAS instance.
	#
	WAS_wait_4_start() {
	max=$1
	retries=0
	shift
	while
	[ $retries -lt $max ]
	do
	if
	WAS_status "$@"
	then
	return $OCF_SUCCESS
	else
	sleep 1
	fi
	retries=`expr $retries + 1`
	done
	WAS_status "$@"
	}


	#
	# Shut down WAS
	#
	WAS_stop() {
	# They don't return good return codes...
	# And, they seem to allow anyone to stop WAS (!)
	if
	[ -x $WASBIN/stopServer.sh ]
	then
	ocf_run $WASBIN/stopServer.sh -configFile $1
	else
	WASPorts=`GetWASPorts $1`
	kill `WASPIDs $WASPorts`
	fi
	if
	WAS_status $1
	then
	ocf_log "err" "WAS: $1 did not stop correctly"
	#false
	return $OCF_ERR_GENERIC
	else
	#true
	return $OCF_SUCCESS
	fi
	}

	#
	# Check if the port is valid
	#
	CheckPort() {
	ocf_is_decimal "$1" && [ $1 -gt 0 ]
	}

	WAS_validate_all() {
	if [ -x $WASBIN/startServer.sh ]; then
	# $arg should be config file
	if [ ! -f "$arg" ]; then
	ocf_log err "Configuration file [$arg] does not exist"
	exit $OCF_ERR_ARGS
	fi

	# $arg should specify a valid port number at the very least
	local WASPorts=`GetWASPorts $arg`
	if [ -z "$WASPorts" ]; then
	ocf_log err "No port number specified in configuration file [$arg]"
	exit $OCF_ERR_CONFIGURED
	fi

	local port
	local have_valid_port=false
	for port in $WASPorts; do
	if CheckPort $port; then
	have_valid_port=true
	break
	fi
	done
	if [ "false" = "$have_valid_port" ]; then
	ocf_log err "No valid port number specified in configuration file [$arg]"
	exit $OCF_ERR_CONFIGURED
	fi

	elif [ -x $WASBIN/startupServer.sh ]; then
	# $arg should be port number
	if CheckPort "$arg"; then
	ocf_log err "Port number is required but [$arg] is not valid port number"
	exit $OCF_ERR_ARGS
	fi
	else
	# Do not know hot to validate_all
	ocf_log warn "Do not know how to validate-all, assuming validation OK"
	return $OCF_SUCCESS
	fi
	}
	#
	# 'main' starts here...
	#

	if
	( [ $# -ne 1 ] )
	then
	usage
	exit $OCF_ERR_ARGS
	fi

	#
	# Supply default configuration parameter(s)
	#

	if
	( [ -z $OCF_RESKEY_config ] && [ -z $OCF_RESKEY_port ] )
	then
	if
	[ -f $DEFAULT ]
	then
	arg=$DEFAULT
	else
	arg=$DEFAULT_WASPORTS
	fi
	elif
	[ ! -z $OCF_RESKEY_config ]
	then
	arg=$OCF_RESKEY_config
	else
	arg=$OCF_RESKEY_port
	fi

	if
	[ ! -f $arg ]
	then
	case $arg in
	[0-9]*) ;; # ignore port numbers...
	*) ocf_log "err" "WAS configuration file $arg does not exist!"
	usage
	exit $OCF_ERR_ARGS;;
	esac
	fi


	# What kind of method was invoked?
	case "$1" in

	meta-data) meta_data
	exit $OCF_SUCCESS;;

	start) WAS_start $arg
	exit $?;;

	stop) WAS_stop $arg
	exit $?;;

	status) WAS_report_status $arg
	exit $?;;

	monitor) WAS_monitor $arg
	exit $?;;

	validate-all) WAS_validate_all $arg
	exit $?;;

	methods) WAS_methods
	exit $?;;

	usage) usage
	exit $OCF_SUCCESS;;

	*) usage
	exit $OCF_ERR_UNIMPLEMENTED;;
	esac

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