#! /bin/bash
#*******************************************************************************
# ALMA - Atacama Large Millimiter Array
# (c) European Southern Observatory, 2002
# Copyright by ESO (in the framework of the ALMA collaboration),
# All rights reserved
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, 
# MA 02111-1307  USA

acsStartJava  -noDirectory alma.acs.JVMSettingsTest.ConsumeHeap return > heapDumpOnOutOfMemoryErrorTest.out 2>&1 

DUMP_FILENAME=`sed -n 's/Dumping heap to .*\(java_pid[0-9]*.hprof\) .../\1/p' heapDumpOnOutOfMemoryErrorTest.out`

if [ X"$DUMP_FILENAME" != X ]
then
    echo "Heap dump created successfully."
    
#   Seeing the line "OutOfMemoryError was thrown as expected." last in the test output guarantees that the JVM 
#   created the heap dump before entering the catch block of the test class.
#   This in turn means that the mechanism works also for applications which don't catch the OutOfMemoryError.
#   An alternative and more direct verification would be to repeat the test, running "ConsumeHeap throw".
    tail -n 1 heapDumpOnOutOfMemoryErrorTest.out
    
# TODO "jhat $DUMP_FILENAME", check for output "Server is ready", possibly run a query, then kill jhat.
# This would verify that the dump was indeed readable.

    DUMP_FILE=`grep Dumping heapDumpOnOutOfMemoryErrorTest.out | cut -d \  -f 4`
    echo "Removing dump file $DUMP_FILENAME"
    rm $DUMP_FILE

else
    echo "ERROR: Heap dump was not created correctly by the test."
fi


# TODO use jhat to analyze the heap dump.