#!/bin/sh

set -e

priority=73
basedir=/usr/lib/jvm/java-7-oracle-1.7.0.45
basediralias=/usr/lib/jvm/java-7-oracle
jdiralias=java-7-oracle
mandir=/usr/lib/jvm/java-7-oracle/jre/man
srcext=1.gz
dstext=1.gz
jre_tools='ControlPanel java java_vm javaws jcontrol keytool pack200 policytool rmid rmiregistry unpack200 orbd servertool tnameserv'

case "$1" in
configure)
    [ -d /etc/.java ] || mkdir -m 755 /etc/.java
    [ -d /etc/.java/.systemPrefs ] || mkdir -m 755 /etc/.java/.systemPrefs
    if [ ! -f /etc/.java/.systemPrefs/.system.lock ]; then
	touch /etc/.java/.systemPrefs/.system.lock
	chmod 644 /etc/.java/.systemPrefs/.system.lock
    fi
    if [ ! -f /etc/.java/.systemPrefs/.systemRootModFile ]; then
	touch /etc/.java/.systemPrefs/.systemRootModFile
	chmod 644 /etc/.java/.systemPrefs/.systemRootModFile
    fi

    for i in $jre_tools; do
	unset slave1 || true
        if [ -e $mandir/man1/$i.$srcext ]; then
	    slave1="--slave \
		/usr/share/man/man1/$i.$dstext \
                $i.$dstext \
                $mandir/man1/$i.$srcext"
	fi
        update-alternatives \
            --install \
            /usr/bin/$i \
            $i \
            $basediralias/jre/bin/$i \
            $priority \
	    $slave1
    done

    update-alternatives \
	--install /usr/bin/jexec jexec $basediralias/jre/lib/jexec $priority \
	--slave \
	    /usr/share/binfmts/jar \
	    jexec-binfmt \
	    $basediralias/jre/lib/jar.binfmt

    # register binfmt; ignore errors, the alternative may already be
    # registered by another JRE.
    if which update-binfmts >/dev/null && [ -r /usr/share/binfmts/jar ]; then
        update-binfmts --package oracle-java7 --import jar || true
    fi

    mount | grep -qs 'on /proc type proc' || echo >&2 "/proc is not mounted; some java apps may fail"

    # activate class data sharing
    case amd64 in i386|amd64)
	for type in client server; do
	    rm -f $basedir/jre/lib/amd64/$type/classes.jsa
	    log=$(tempfile)
	    if ! $basedir/bin/java -$type -Xshare:dump -Xmx256m -XX:PermSize=128m > $log; then
	        rm -f $basedir/jre/lib/amd64/$type/classes.jsa
	        cat >&2 $log
	        echo "Ignoring error generating classes.jsa"
	    fi
	    rm -f $log
	done
    esac

    ;;

esac

#DEBHELPER#

exit 0