#!/bin/bash

# Absolute path to this script, e.g. /home/user/bin/foo.sh

SCRIPT=$(readlink -f "$0")

# Absolute path this script is in, thus /home/user/bin

SCRIPT_PATH=$(dirname "$SCRIPT")

AGENT_DIR="/java_agent"

#JAVA="$AGENT_DIR/java"

VARIABLES_CONF="$AGENT_DIR/variablesparser.sh"

MEMORY_CONF="$AGENT_DIR/memoryConfig.sh"

ENVS_FILE="$AGENT_DIR/envs"

install () {

JAVA_BIN=$1

JAVA_ORIG="${JAVA_BIN}.orig"

if [ -f $JAVA_ORIG ]; then

echo "Installation to $JAVA_BIN has been skipped as $JAVA_ORIG already exists"

else

#moving files around

mv $JAVA_BIN $JAVA_ORIG

cp $SCRIPT $JAVA_BIN

/bin/chown --reference=$JAVA_ORIG $JAVA_BIN

/bin/chmod --reference=$JAVA_ORIG $JAVA_BIN

echo "Java memory agent has been installed to $JAVA_BIN"

fi

}

uninstall () {

JAVA_BIN=$1

JAVA_ORIG="${JAVA_BIN}.orig"

if [ -f $JAVA_ORIG ]; then

rm -f $JAVA_BIN

mv $JAVA_ORIG $JAVA_BIN

echo "Java memory agent has been uninstalled at $JAVA_BIN"

else

echo "Java memory agent was not found at $JAVA_BIN, uninstallation has been skipped"

fi

}

if [[ "$1" == "--install" ]] || [[ "$1" == "--uninstall" ]]; then

if [ -z "$JAVA_HOME" ]; then

#checking default link to java

LINK=$(which java)

JAVA_BIN=$(readlink -f $LINK)

else

JAVA_BIN=$JAVA_HOME

fi

[[ $JAVA_BIN != */bin/java ]] && { JAVA_BIN=$JAVA_BIN"/bin/java"; }

FUNC=${1:2}

$FUNC $JAVA_BIN

for D in `find /usr/{java,lib} -maxdepth 5 -mindepth 3 -type f -name "java"`;

do

$FUNC $D;

done

else

. /etc/profile >/dev/null 2>&1

JAVA_ORIG="$SCRIPT.orig"

[ -f "$VARIABLES_CONF" ] && source $VARIABLES_CONF

source $MEMORY_CONF

exec $JAVA_ORIG "$@"

fi