#!/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.


# OPTIONS:
#   -f: start in foreground
#   -p <filename>: log the pid to a file (useful to kill it later)

if [ -x $JAVA_HOME/bin/java ]; then
    JAVA=$JAVA_HOME/bin/java
else
    JAVA=`which java`
fi

if [ "x$CASSANDRA_INCLUDE" = "x" ]; then
    for include in /usr/share/cassandra/cassandra.in.sh \
                   /usr/local/share/cassandra/cassandra.in.sh \
                   /opt/cassandra/cassandra.in.sh \
                   `dirname $0`/cassandra.in.sh; do
        if [ -r $include ]; then
            . $include
            break
        fi
    done
elif [ -r $CASSANDRA_INCLUDE ]; then
    . $CASSANDRA_INCLUDE
fi

if [ -z $CASSANDRA_CONF -o -z $CLASSPATH ]; then
    echo "You must set the CASSANDRA_CONF and CLASSPATH vars" >&2
    exit 1
fi

# Special-case path variables.
case "`uname`" in
    CYGWIN*) 
        CLASSPATH=`cygpath -p -w "$CLASSPATH"`
        CASSANDRA_CONF=`cygpath -p -w "$CASSANDRA_CONF"`
    ;;
esac

launch_service()
{
    pidpath=$1
    foreground=$2
    bootstrap=$3
    cassandra_parms="-Dcassandra -Dstorage-config=$CASSANDRA_CONF"

    if [ "x$pidpath" != "x" ]; then
        cassandra_parms="$cassandra_parms -Dcassandra-pidfile=$pidpath"
    fi
    
    if [ "x$bootstrap" != "x" ]; then
        cassandra_parms="$cassandra_parms -Dbootstrap=$bootstrap"
    fi

    # The cassandra-foreground option will tell CassandraDaemon not
    # to close stdout/stderr, but it's up to us not to background.
    if [ "x$foreground" != "x" ]; then
        cassandra_parms="$cassandra_parms -Dcassandra-foreground=yes"
        $JAVA $JVM_OPTS $cassandra_parms -cp $CLASSPATH \
                org.apache.cassandra.service.CassandraDaemon
    # Startup CassandraDaemon, background it, and write the pid.
    else
        exec $JAVA $JVM_OPTS $cassandra_parms -cp $CLASSPATH \
                    org.apache.cassandra.service.CassandraDaemon <&- &
        [ ! -z $pidpath ] && printf "%d" $! > $pidpath
    fi

    return $?
}

# Parse any command line options.
args=`getopt fhp:b "$@"`
eval set -- "$args"

while true; do
    case "$1" in
        -p)
            pidfile="$2"
            shift 2
        ;;
        -f)
            foreground="yes"
            shift
        ;;
        -b)
            bootstrap="true"
            shift
        ;;
        -h)
            echo "Usage: $0 [-f] [-h] [-p pidfile] [-b]"
            exit 0
        ;;
        --)
            shift
            break
        ;;
        *)
            echo "Error parsing arguments!" >&2
            exit 1
        ;;
    esac
done

# Start up the service
launch_service "$pidfile" "$foreground" "$bootstrap"

exit $?

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