#!/bin/sh
# gvSIG.sh

###########################################
# Variables depending on the installation #
###########################################

set -e
#set -x

if type which >/dev/null; then
        WHICH=which
else
        WHICH=type
fi

FORCE_JAVA_32BITS=""
JAVA_HOME_OTHER_ARCHITECTURE=""
PRIVATE_JAVA_HOME="$HOME/gvSIG/jre/*1.6* $HOME/gvSIG/jre/*1.5*"
#
# in next line, JAVA_HOME is set during instalation process
DEFAULT_JAVA_HOME="${JAVA_HOME}"
#
#
# Try to use java from:
# 1. Java specified in JAVA_HOME variable
# 2. Java specified in the instalation process
# 3. Java in the HOME/gvsig/jre folder (optionally created during installation process)
# 4. Java in the system path.
#
for JAVA_HOME_TO_USE in "$JAVA_HOME" "$DEFAULT_JAVA_HOME" $PRIVATE_JAVA_HOME ""
do
        if [ "$JAVA_HOME_TO_USE" = "" ] ; then
                continue
        fi
        if [ ! -d "$JAVA_HOME_TO_USE" ] ; then
                echo "WARNING: Incorrect JAVA_HOME ($JAVA_HOME_TO_USE), skip"
                continue
        fi
        if [ ! -x "$JAVA_HOME_TO_USE/bin/java" ] ; then
                echo "WARNING: Incorrect JAVA_HOME ($JAVA_HOME_TO_USE), bin/java not found, skip"
                continue
        fi
        if ! "$JAVA_HOME_TO_USE/bin/java" -d32 -version 2>/dev/null ; then
                JAVA_HOME_OTHER_ARCHITECTURE="$JAVA_HOME_TO_USE"
                echo "WARNING: java 32 bits not found in $JAVA_HOME_TO_USE, skip"
                continue
        fi
        break
done
if [ "$JAVA_HOME_TO_USE" = "" ] ; then
        # Try to use the java in the system path
        if ! type java >/dev/null ; then
                # java not found in the system path
                if [ "$JAVA_HOME_OTHER_ARCHITECTURE" != "" ] ; then
                        FORCE_JAVA_32BITS=""
                        JAVA_HOME="$JAVA_HOME_OTHER_ARCHITECTURE"
                        JAVA="$JAVA_HOME/bin/java"
                        echo "WARNING: java 32 bits not found in the system path, using $JAVA_HOME_OTHER_ARCHITECTURE"
                else
                        echo "WARNING: java not found in the system"
                        exit 1
                fi
        else
                if ! java -d32 -version 2>/dev/null ; then
                        FORCE_JAVA_32BITS=""
                        echo "WARNING: java 32 bits not found, using $($WHICH java)"
		else
        		FORCE_JAVA_32BITS="-d32"
                fi
                unset JAVA_HOME
                JAVA="java"
        fi
else
        JAVA_HOME="$JAVA_HOME_TO_USE"
        JAVA="$JAVA_HOME/bin/java"
        FORCE_JAVA_32BITS="-d32"
fi
echo "Using java $($WHICH $JAVA)"
export JAVA_HOME
export JAVA

# Go into the gvSIG installation folder, just in case
cd `dirname "$0"`

# gvSIG installation folder
GVSIG_HOME="$PWD"

###################################################################
# Variables not depending (at least directly) on the installation #
###################################################################

# gvSIG native libraries location 
GVSIG_NATIVE_LIBS=${GVSIG_HOME}/native:${HOME}/.depman/lib

# Proj4 data files
export PROJ_LIB="${GVSIG_HOME}/gvSIG/extensiones/org.gvsig.crs.extension/data"

# GDAL data files
export GDAL_DATA="${GVSIG_HOME}/data/gdal"

# Native libraries path
export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$GVSIG_NATIVE_LIBS"

LIBRARIES=""
# Load gvSIG Andami jars and dependencies for the classpath 
for i in ./lib/*.jar ; do
  LIBRARIES=$LIBRARIES:"$i"
done
for i in ./lib/*.zip ; do
  LIBRARIES=$LIBRARIES:"$i"
done

# echo Initial libraries found: ${LIBRARIES}

# gvSIG Andami launcher
if [ "$GVSIG_LAUNCHER" = "" ] ; then
  GVSIG_LAUNCHER=org.gvsig.andamiupdater.Updater
fi
if [ "$GVSIG_PARAMS" = "" ] ; then
  GVSIG_PARAMS="gvSIG gvSIG/extensiones $@"
fi

# gvSIG initial classpath
GVSIG_CLASSPATH="$LIBRARIES:$GVSIG_CLASSPATH"

########################
# Memory configuration #
########################

# Initial gvSIG memory (M=Megabytes, G=Gigabytes)
GVSIG_INITIAL_MEM=128M
# Maximum gvSIG memory (M=Megabytes, G=Gigabytes)
GVSIG_MAX_MEM=512M
# Maximum permanent memory size: needed to load classes and statics
GVSIG_MAX_PERM_SIZE=96M

################
# Launch gvSIG #
################

# Temporary fix for number locale related formatting error with proj4.
export LC_NUMERIC=C

# For Java parameters documentation and more parameters look at:
# http://download.oracle.com/javase/6/docs/technotes/tools/windows/java.html
# http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html

echo Launching gvSIG: ${JAVA} \
	$FORCE_JAVA_32BITS \
	-Djava.library.path=/usr/lib:"${GVSIG_NATIVE_LIBS}" \
	-cp $GVSIG_CLASSPATH \
	-Xms${GVSIG_INITIAL_MEM} \
	-Xmx${GVSIG_MAX_MEM} \
	-XX:MaxPermSize=${GVSIG_MAX_PERM_SIZE} \
	$GVSIG_LAUNCHER $GVSIG_PARAMS

${JAVA} \
	$FORCE_JAVA_32BITS \
	-Djava.library.path=/usr/lib:"${GVSIG_NATIVE_LIBS}" \
	-cp $GVSIG_CLASSPATH \
	-Xms${GVSIG_INITIAL_MEM} \
	-Xmx${GVSIG_MAX_MEM} \
	-XX:MaxPermSize=${GVSIG_MAX_PERM_SIZE} \
	$GVSIG_LAUNCHER $GVSIG_PARAMS