#!/bin/bash
#
# /etc/init.d/cassandra
#
# Startup script for Cassandra
# 
# chkconfig: 2345 20 80
# description: Starts and stops Cassandra

. /etc/rc.d/init.d/functions

export CASSANDRA_HOME=/usr/share/cassandra/
export CASSANDRA_INCLUDE=/usr/share/cassandra/cassandra.in.sh
export CASSANDRA_CONF=/etc/cassandra/conf
export CASSANDRA_OWNR=cassandra
NAME="cassandra"
log_file=/var/log/cassandra/cassandra.log
pid_file=/var/run/cassandra/cassandra.pid
CASSANDRA_PROG=/usr/sbin/cassandra

# The first existing directory is used for JAVA_HOME if needed.
JVM_SEARCH_DIRS="/usr/lib/jvm/jre /usr/lib/jvm/jre-1.6.* /usr/lib/jvm/java-1.6.*/jre"

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

# If JAVA_HOME has not been set, try to determine it.
if [ -z "$JAVA_HOME" ]; then
    # If java is in PATH, use a JAVA_HOME that corresponds to that. This is
    # both consistent with how the upstream startup script works, and with
    # the use of alternatives to set a system JVM (as is done on Debian and
    # Red Hat derivatives).
    java="`/usr/bin/which java 2>/dev/null`"
    if [ -n "$java" ]; then
        java=`readlink --canonicalize "$java"`
        JAVA_HOME=`dirname "\`dirname \$java\`"`
    else
        # No JAVA_HOME set and no java found in PATH; search for a JVM.
        for jdir in $JVM_SEARCH_DIRS; do
            if [ -x "$jdir/bin/java" ]; then
                JAVA_HOME="$jdir"
                break
            fi
        done
        # if JAVA_HOME is still empty here, punt.
    fi
fi
JAVA="$JAVA_HOME/bin/java"
export JAVA_HOME JAVA

case "$1" in
    start)
        # Cassandra startup
        echo -n "Starting Cassandra: "
        su $CASSANDRA_OWNR -c "$CASSANDRA_PROG -p $pid_file" > $log_file 2>&1
        echo "OK"
        ;;
    stop)
        # Cassandra shutdown
        echo -n "Shutdown Cassandra: "
        su $CASSANDRA_OWNR -c "kill `cat $pid_file`"
        echo "OK"
        ;;
    reload|restart)
        $0 stop
        $0 start
        ;;
    status)
        status -p $pid_file cassandra
        ;;
    *)
        echo "Usage: `basename $0` start|stop|status|restart|reload"
        exit 1
esac

exit 0