#! /bin/sh

EXEC=org.griphyn.vdl.karajan.Loader
OPTIONS=

CYGWIN=
CPDELIM=":"
HEAPMAX=256M

if echo `uname` | grep -i "cygwin"; then
    CYGWIN="yes"
    CPDELIM=";"
fi

fixCommandLine() {

    COMMANDLINE=

    while [ "X$1" !=  "X" ] ; do
        COMMANDLINE="${COMMANDLINE} '$1'"
        shift
    done

    echo $COMMANDLINE
}

updateOptions() {

    if [ "X$1" != "X" ] ; then
	OPTIONS="$OPTIONS -D$2=$1"
    fi

}

####### MAIN BODY ##########

if [ ! -d "$SWIFT_HOME" ] ; then
    SWIFT_HOME=`dirname $0`"/.."
    if [ ! -f "$SWIFT_HOME/lib/cog-swift-svn.jar" ] && [ ! -f "$SWIFT_HOME/lib/cog.jar" ] ; then
		MY_PATH=`which $0`
		SWIFT_HOME=`dirname $MY_PATH`"/.."
		if [ ! -f "$SWIFT_HOME/lib/cog-swift-svn.jar" ] && [ ! -f "$SWIFT_HOME/lib/cog.jar" ] ; then
	    	echo "Error: SWIFT_HOME is not set, and all attempts at guessing it failed"
	    	exit
		fi
    fi
fi

OPTIONS="$OPTIONS -Djava.endorsed.dirs=$SWIFT_HOME/lib/endorsed"

LOCALCLASSPATH=$SWIFT_HOME/etc$CPDELIM$SWIFT_HOME/libexec
for JAR in $SWIFT_HOME/lib/*.jar; do
	LOCALCLASSPATH="$LOCALCLASSPATH$CPDELIM$JAR"
done
LOCALCLASSPATH=$LOCALCLASSPATH$CPDELIM$CLASSPATH

CMDLINE=`fixCommandLine "$@"`

### SETUP OTHER ENV VARIABLES ####

USERID=`id | awk '{printf("%s\n", substr($1, 5, index($1, "(")-5 ) ) }'`

if [ "X$GLOBUS_HOSTNAME" = "X" ] && [ "X$HOSTNAME" != "X" ]; then 
	GLOBUS_HOSTNAME=$HOSTNAME  
fi

updateOptions "$USERID" "UID"
updateOptions "$GLOBUS_INSTALL_PATH" "GLOBUS_INSTALL_PATH"
updateOptions "$GLOBUS_DEPLOY_PATH" "GLOBUS_DEPLOY_PATH"
updateOptions "$GLOBUS_TCP_PORT_RANGE" "GLOBUS_TCP_PORT_RANGE"
updateOptions "$GLOBUS_TCP_SOURCE_PORT_RANGE" "GLOBUS_TCP_SOURCE_PORT_RANGE"
updateOptions "$GLOBUS_UDP_SOURCE_PORT_RANGE" "GLOBUS_UDP_SOURCE_PORT_RANGE"
updateOptions "$GLOBUS_HOSTNAME" "GLOBUS_HOSTNAME"
updateOptions "$X509_USER_CERT" "X509_USER_CERT"
updateOptions "$X509_USER_KEY" "X509_USER_KEY"
updateOptions "$X509_CERT_DIR" "X509_CERT_DIR"
updateOptions "$X509_USER_PROXY" "X509_USER_PROXY"
updateOptions "$SWIFT_HOME" "COG_INSTALL_PATH"
updateOptions "$SWIFT_HOME" "vds.home"
updateOptions "$SWIFT_HOME" "swift.home"
#Use /dev/urandom instead of /dev/random for seeding RNGs
#This will lower the randomness of the seed, but avoid
#large delays if /dev/random does not have enough entropy collected
updateOptions "file:///dev/urandom" "java.security.egd"

if [ "X$HEAPMAX" != "X" ]; then
	OPTIONS="-Xmx$HEAPMAX $OPTIONS"
fi

# Anonymous usage statistics
ALLOW_USAGE_STATS=1
LISTENER="bridled.ci.uchicago.edu"
PORT="9999"

PATH=$PATH:/sbin
IFCONFIG=`which ifconfig`
if [ -x "$IFCONFIG" ]; then
    MAC=`$IFCONFIG |grep HWaddr`
fi

MD5SUM=`which md5sum`
if [ ! -x "$MD5SUM" ]; then
    echo "warning: unable to find md5sum";
    ALLOW_USAGE_STATS=0;
fi

NC=`which nc`
if [ ! -x "$NC" ]; then
    echo "warning: unable to find nc";
    ALLOW_USAGE_STATS=0;
fi

if [ $ALLOW_USAGE_STATS = 1 ]; then
    for var in "$@"
    do
        SCRIPT=`echo $var|grep -i .swift`
        if [ -e "$SCRIPT" ]; then
            SCRIPT=$var
            SCRIPTID=`$MD5SUM $SCRIPT|cut -d ' ' -f1`
            SCRIPTLENGTH=`wc -l $SCRIPT|cut -d ' ' -f1`
        fi 
    done
    HOSTNAME=`hostname`
    USERID=`echo $USERID $HOSTNAME $MAC | $MD5SUM |cut -d ' ' -f1`
    DATE=`date`
    KEY=`echo $USERID $DATE $$ | $MD5SUM | cut -d ' ' -f1`
    echo $KEY $USERID $SCRIPTID $SCRIPTLENGTH -1 0| $NC -u $LISTENER $PORT
fi

### EXECUTE ############
if test -n "$CYGWIN"; then
    set CLASSPATHSAVE=$CLASSPATH
    export CLASSPATH="$LOCALCLASSPATH"
    eval java ${OPTIONS} ${COG_OPTS} ${EXEC} ${CMDLINE}
    export CLASSPATH=$CLASSPATHSAVE
else
    eval java ${OPTIONS} ${COG_OPTS} -classpath ${LOCALCLASSPATH} ${EXEC} ${CMDLINE}
fi
return_code=$?

if [ $ALLOW_USAGE_STATS = 1 ]; then
	echo $KEY $USERID $SCRIPTID $SCRIPTLENGTH $return_code 1| $NC -u $LISTENER $PORT
fi

exit $return_code