#! /bin/sh

test -x /usr/mqm/bin/dspmq || exit 5
test -x /usr/mqm/bin/strmqm || exit 5
test -x /usr/mqm/bin/endmqm || exit 5

if test "x$QUEUE_MANAGERS" = x ; then
# Default to deal with all defined QMs
QUEUE_MANAGERS='*'
fi

if test "x$QUEUE_MANAGERS" = 'x*' ; then
# Expand * to list of all queue managers
QUEUE_MANAGERS=`su - mqm -c "/usr/mqm/bin/dspmq" | sed -e 's/^QMNAME(\([^)]*\)).*/\1/'`
fi

if test "x$STOP_METHOD" = x ; then
# Default to quiesce and wait
STOP_METHOD='-w'
fi

stop_qm()
{
  QM=$1
  echo "Stopping queue manager $QM"
  su - mqm -c "/usr/mqm/bin/endmqm $STOP_METHOD $QM" > /dev/null 2>&1
  STAT=$?
  if test $STAT -eq 0 ; then
    echo "Queue manager $QM stopped"
  elif test $STAT -eq 40 ; then
    echo "Queue manager $QM not available"
  elif test $STAT -eq 16 ; then
    echo "Queue manager $QM does not exist"
  else 
    echo "Stopping queue manager $QM failed (rc=$STAT)"
  fi
}

start_qm()
{
  QM=$1
  echo "Starting queue manager $QM"
  su - mqm -c "/usr/mqm/bin/strmqm $QM" > /dev/null 2>&1
  STAT=$?
  if test $STAT -eq 0 ; then
    echo "Queue manager $QM started"
  elif test $STAT -eq 5 ; then
    echo "Queue manager $QM is already running"
  elif test $STAT -eq 16 ; then
    echo "Queue manager $QM does not exist"
  else 
    echo "Starting queue manager $QM failed (rc=$STAT)"
  fi
}

qm_status()
{
  QM=$1
  su - mqm -c "/usr/mqm/bin/dspmq" | grep "^QMNAME($QM).*STATUS(Running)\$" > /dev/null 2>&1
}

qm_status_verbose()
{
  QM=$1
  echo "Getting status of queue manager $QM"
  su - mqm -c "/usr/mqm/bin/dspmq" | grep "^QMNAME($QM).*STATUS(.*)\$" > /dev/null 2>&1
  STAT=$?
  if test $STAT -eq 0 ; then
    QMSTATUS=`su - mqm -c "/usr/mqm/bin/dspmq"  | grep "QMNAME($QM)" | sed -n 's/^.*STATUS(\(.*\))$/\1/p'`
    echo "Queue manager $QM status is: $QMSTATUS"
  else
    echo "Queue manager $QM does not exist"
  fi
}

case "$1" in
  start)
    echo "Starting Queue Managers:"
    for QM in $QUEUE_MANAGERS ; do
      start_qm $QM
    done
    ;;
  stop)
    echo "Stopping Queue Managers:"
    for QM in $QUEUE_MANAGERS ; do
      stop_qm $QM
    done
    ;;
  try-restart)
    echo "Restarting Active Queue Managers:"
    for QM in $QUEUE_MANAGERS ; do
      qm_status $QM && (stop_qm $QM; start_qm $QM)
    done
    ;;
  restart)
    echo "Restarting All Queue Managers:"
    for QM in $QUEUE_MANAGERS ; do
      qm_status $QM && stop_qm $QM
      start_qm $QM
    done
    ;;
  force-reload)
    $0 try-restart
    ;;
  reload)
    echo "reload does nothing"
    exit 3
    ;;
  status)
    echo "Checking Queue Manager Status:"
    for QM in $QUEUE_MANAGERS ; do
      qm_status_verbose $QM
    done
    ;;
  *)
    echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload}"
    exit 1
    ;;
esac