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#!/bin/sh
#
#    Licensed to the Apache Software Foundation (ASF) under one or more
#    contributor license agreements.  See the NOTICE file distributed with
#    this work for additional information regarding copyright ownership.
#    The ASF licenses this file to You under the Apache License, Version 2.0
#    (the "License"); you may not use this file except in compliance with
#    the License.  You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS,
#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#    See the License for the specific language governing permissions and
#    limitations under the License.
#

DIRNAME=`dirname $0`
PROGNAME=`basename $0`

#
# Sourcing environment settings for karaf similar to tomcats setenv 
#
KARAF_SCRIPT="start"
export KARAF_SCRIPT
if [ -f "$DIRNAME/setenv" ]; then
  . "$DIRNAME/setenv"
fi

warn() {
    echo "${PROGNAME}: $*"
}

die() {
    warn "$*"
    exit 1
}

detectOS() {
    # OS specific support (must be 'true' or 'false').
    cygwin=false;
    darwin=false;
    aix=false;
    os400=false;
    case "`uname`" in
        CYGWIN*)
            cygwin=true
            ;;
        Darwin*)
            darwin=true
            ;;
        AIX*)
            aix=true
            ;;
        OS400*)
            os400=true
            ;;
    esac
    # For AIX, set an environment variable
    if $aix; then
         export LDR_CNTRL=MAXDATA=0xB0000000@DSA
         echo $LDR_CNTRL
    fi
}

locateHome() {
    if [ "x$KARAF_HOME" != "x" ]; then
        warn "Ignoring predefined value for KARAF_HOME"
    fi

    # In POSIX shells, CDPATH may cause cd to write to stdout
    (unset CDPATH) >/dev/null 2>&1 && unset CDPATH

    KARAF_HOME=`cd $DIRNAME/..; pwd`
    if [ ! -d "$KARAF_HOME" ]; then
        die "KARAF_HOME is not valid: $KARAF_HOME"
    fi
}

locateBase() {
    if [ "x$KARAF_BASE" != "x" ]; then
        if [ ! -d "$KARAF_BASE" ]; then
            die "KARAF_BASE is not valid: $KARAF_BASE"
        fi
    else
        KARAF_BASE=$KARAF_HOME
    fi
}

locateData() {
    if [ "x$KARAF_DATA" != "x" ]; then
        if [ ! -d "$KARAF_DATA" ]; then
            die "KARAF_DATA is not valid: $KARAF_DATA"
        fi
    else
        KARAF_DATA=$KARAF_BASE/data
    fi
}

locateEtc() {
    if [ "x$KARAF_ETC" != "x" ]; then
        if [ ! -d "$KARAF_ETC" ]; then
            die "KARAF_ETC is not valid: $KARAF_ETC"
        fi
    else
        KARAF_ETC=$KARAF_BASE/etc
    fi
}

init() {
    # Determine if there is special OS handling we must perform
    detectOS

    # Locate the Karaf home directory
    locateHome

    # Locate the Karaf base directory
    locateBase

    # Locate the Karaf data directory
    locateData

    # Locate the Karaf etc directory
    locateEtc
}

run() {
    if $cygwin; then
        KARAF_HOME=`cygpath --path --windows "$KARAF_HOME"`
        KARAF_BASE=`cygpath --path --windows "$KARAF_BASE"`
        KARAF_DATA=`cygpath --path --windows "$KARAF_DATA"`
        KARAF_ETC=`cygpath --path --windows "$KARAF_ETC"`
        CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
    fi
    # Ensure the log directory exists -- we need to have a place to redirect stdout/stderr
    if [ ! -d "$KARAF_DATA/log" ]; then
        mkdir -p "$KARAF_DATA/log"
    fi
    exec "$KARAF_HOME"/bin/livesense server "$@" >> "$KARAF_DATA/karaf.out" 2>&1 &
}

main() {
    init
    run "$@"
}

main "$@"