#! /bin/bash
. acsstartupAcsPorts
. acsstartupAcsInstance
. acsstartupLogging.sh
. acsstartupConstants
. acsstartupPids
#*******************************************************************************
# E.S.O. - VLT project
#
# "@(#) $Id: acsAlarmService,v 1.10 2012/05/31 15:03:11 acaproni Exp $"
#
# who       when      what
# --------  --------  ----------------------------------------------
# acaproni   2009-05-18 Adpated from acsConfigurationDatabase
#

#************************************************************************
#   NAME
# 
#   SYNOPSIS
# 
#   DESCRIPTION
#
#   FILES
#
#   ENVIRONMENT
#
#   RETURN VALUES
#
#   CAUTIONS
#
#   EXAMPLES
#
#   SEE ALSO
#
#   BUGS     
#
#------------------------------------------------------------------------
#

PID=$$
export HOST=`getIP`
COMMAND=`basename $0`
#LOGPOSTFIX=" using 'ACS_INSTANCE=$ACS_INSTANCE'"
LOGPOSTFIX=

###
### ----------- Command Line Parsing ---------------------

#
# These will contain the parsing results (CL_XXX, CL = command line)
#
CL_START=false
CL_STOP=false
CL_WAIT=false
CL_BASEPORT=
CL_HELP=

#
# These options can be recognized (longopts comma-separated. colon means argument is required)
#
LONGOPTS=help,start,kill,wait,noloadIFR,recoverClientConnections,baseport:,timeout:,nameService:
SHORTOPTS=hskwrb:t:x:

#
# Usage info. Be nice and keep this up-to-date!
#
function printUsage {
  cat << EOF
Starts Interface Repository for Acs

Usage: $COMMAND [OPTIONS]
Options:
   -s | --start                      start service
   -k | --kill                       stop service
   -w | --wait                       wait for service to get started
   -b | --baseport INSTANCE          the acs instance (0-9) you want to use
   -t | --timeout MULTIPLIER         the maximum timeout can be increased by specifying an integer value greater than 1
   -x | --nameService REF            set name service reference via command-line
   -h | --help                       prints this help and exits
EOF
}

#
# Run getopt (posixly_correct needed). We run twice:
# First run is simply to check the commandline for correctness
# Second run is the real deal which replaces the command line args with getopt's output
export POSIXLY_CORRECT=1

getopt -n $COMMAND -Q -u -a -l $LONGOPTS $SHORTOPTS "$@" || {
  printUsage
  exit $EC_BADARGS;
}

set -- `getopt -u -a -l $LONGOPTS $SHORTOPTS "$@"`

#
# Iterate over getopt's output and set CL_XXX variables accordingly
#
while : 
do
  case "$1" in
    --baseport)                   CL_BASEPORT=$2 ; shift ;;
    -b)                           CL_BASEPORT=$2 ; shift ;;
    --timeout)                    export ACS_STARTUP_TIMEOUT_MULTIPLIER=$2 ; shift ;;
    -t)                           export ACS_STARTUP_TIMEOUT_MULTIPLIER=$2 ; shift ;;
    --help)                       CL_HELP=true ;; 
    -h)                           CL_HELP=true ;; 
    --start)                      CL_START=true ;; 
    -s)                           CL_START=true ;; 
    --kill)                       CL_STOP=true ;; 
    -k)                           CL_STOP=true ;; 
    --wait)                       CL_WAIT=true ;; 
    -w)                           CL_WAIT=true ;; 
    --nameService)                export ACS_NAME_SERVICE=$2 ; shift ;;
    -x)                           export ACS_NAME_SERVICE=$2 ; shift ;;
    --) break ;;
  esac
  shift
done
shift

# restore 
export POSIXLY_CORRECT=
unset POSIXLY_CORRECT


if [ "$CL_HELP" ] ; then
  printUsage
  exit $EC_OK
fi


#
# (Note: Rest of command line now in $@ )
#
### ---------- End of Command Line Parsing -------------


################################
#Set variables
################################

#Check command-line args for baseport option
if [ "$CL_BASEPORT" ]
then
  export ACS_INSTANCE="$CL_BASEPORT"
fi

ACS_LOG_COMMAND $@

#Makes shure there is an initial value
if [ X"$ACS_STARTUP_TIMEOUT_MULTIPLIER" = X ]
then
  ACS_STARTUP_TIMEOUT_MULTIPLIER=5
fi

#maximum timeout for any given process to complete
MAX_TIMEOUT=$(( 10 * $ACS_STARTUP_TIMEOUT_MULTIPLIER ))

export STD_SLEEP=3

export INSTANCE_DIR=`getInstanceDirName $ACS_INSTANCE`

#set the filenames where binaries' output will be sent
ALARM_SERVICE_OUT=$INSTANCE_DIR/$ACS_ALARM_SERVICE_OUT

ALARM_SERVICE_PIDFILE=$INSTANCE_DIR/$ACS_ALARM_SERVICE_PIDFILE

#determine the TCP ports to be used
ALARM_SERVICE_PORT=`getAlarmServicePort`

# Always use -ORBDottedDecimalAddresses=1
if [ "X$ORBOPTS" = "X" ]
then
  ORBOPTS="-ORBDottedDecimalAddresses 1"
fi




######################################
#   ACS alarm service
#
#   Note: this is started immediately after the configuration database 
#         (which is its only dependency part of the name service) 
#		  in the background, for performance reasons. 
#######################################

if [ "$CL_STOP" = "true" ]
then
  # SANITY CHECKS
  # --------------------------------------------------------------------------
  if [ ! -d $INSTANCE_DIR ]
  then
    ACS_LOG_DEBUG "$COMMAND" "Lock directory '$INSTANCE_DIR' does not exist!"
  elif [ ! -w $INSTANCE_DIR ]
  then
    ACS_LOG_ERROR "$COMMAND" "Lock directory '$INSTANCE_DIR' is not owned by '$USER'!"
    exit $EC_CANNOTUSE
  fi

  # SERVICE SHUTDOWN
  # --------------------------------------------------------------------------
  # Since the alarm service is just a Java process, it must be treated a little differently
  ACS_LOG_INFO "$COMMAND" "Stopping the AlarmService${LOGPOSTFIX}"
  
  #Try the "correct" way of shutting down the alarm service
  if ! acsutilBlock -t 15 -k alarmServiceShutdown # &> /dev/null
  then
    if ALARM_SERVICE_PID=`getAlarmServicePid`
    then
      acsKillProc $ALARM_SERVICE_PID 2> /dev/null || (ACS_LOG_ERROR "$COMMAND" "Cannot kill the alarm service")
    fi
  fi
  if [ -e $ALARM_SERVICE_PIDFILE ]
  then
    rm $ALARM_SERVICE_PIDFILE
  fi
fi

if [ "$CL_START" = "true" ]
then
  # SANITY CHECKS
  # --------------------------------------------------------------------------
  # Prevent from having the service started more than once on the same baseport
  if ALARM_SERVICE_PID=`getAlarmServicePid 2> /dev/null`
  then
    ACS_LOG_ERROR "$COMMAND" "It appears as if you're trying to run the `basename $0` command twice"
    ACS_LOG_ERROR "$COMMAND" "    in a row using the same ACS_INSTANCE ($ACS_INSTANCE). This is not possible."
    exit $EC_FAILURE
  fi

  # Make sure that the directory for temporary ACS_INSTANCE files exists.
  if ! createInstanceDirectory $ACS_INSTANCE
  then
     ACS_LOG_ERROR "$COMMAND" "Cannot create $INSTANCE_DIR"
     exit $EC_CANNOTCREATE
  fi
  mkdir -p $INSTANCE_DIR/$ACS_PID_DIR
  mkdir -p $INSTANCE_DIR/$ACS_OUT_DIR
  mkdir -p $INSTANCE_DIR/$ACS_IOR_DIR
  mkdir -p $INSTANCE_DIR/$ACS_CNF_DIR
  
  # Ensure the port numbers are actually free
  if ! checkTCPPort $ALARM_SERVICE_PORT
  then
    ACS_LOG_ERROR "$COMMAND" "Alarm service port is being used by another process. Cannot continue!"
    exit $EC_NOPORT
  fi

  # SERVICE STARTUP
  # --------------------------------------------------------------------------
  
  ACS_LOG_INFO "$COMMAND" "Starting ACS AlarmService${LOGPOSTFIX}"
  if [ `searchFile lib/acsAlarmService.jar` = "#error#" ] # sanity check
  then
    ACS_LOG_ERROR "$COMMAND" "The alarm service implementation cannot be found. Did you build ACS/ACSLaser?"
    exit $EC_FAILURE;
  fi
  
  (alarmService -OAIAddr $HOST -OAport $ALARM_SERVICE_PORT 2>&1 & echo $! > $INSTANCE_DIR/$ACS_ALARM_SERVICE_PIDFILE) | tee $ALARM_SERVICE_OUT &
  cd $STARTUP_DIR
fi

if [ "$CL_WAIT" = "true" ]
then
  # Block until the expected output shows up in the the correct file
  if ! acsutilBlock -t $MAX_TIMEOUT -f $ALARM_SERVICE_OUT -b "The alarm service is ready and waiting"
  then
    ACS_LOG_ERROR "$COMMAND" "Unable to start the alarm service!"
    ACS_LOG_ERROR "$COMMAND" "Try increasing the value of \$ACS_STARTUP_TIMEOUT_MULTIPLIER"
    exit $EC_TIMEOUT
  fi
fi


#
# ___oOo___
