init script for `mvn tomcat7:run`

mvn-tomcat.sh

#!/bin/bash
# init script for `mvn tomcat7:run`

PROFILE=""

JAVA_HOME="/usr/lib/jvm/java-7-oracle/jre"
M2_HOME="/usr/local/lib/apache-maven/apache-maven-2.2.1"

LOG_FILE="log/catalina.out"
PID_FILE=".run/pid"

JAVA="$JAVA_HOME/bin/java"
MAVEN="$M2_HOME/bin/mvn"

BASE_DIR="$(cd `dirname $0` && cd .. && pwd)"
LOG_FILE="$BASE_DIR/$LOG_FILE"
PID_FILE="$BASE_DIR/$PID_FILE"

do_start(){
    if [ -f $PID_FILE ]
    then
        echo "already started (pid: `cat $PID_FILE`)"
        return 1
    fi

    nohup $MAVEN tomcat7:run --activate-profiles $PROFILE > $LOG_FILE 2>&1 &
    echo -n $! > $PID_FILE

    SUCCESS_EXPECTED="FrameworkServlet 'dispatcher': initialization completed"
    ERROR_EXPECTED="ERROR"

    expect <<EOF
spawn tailf -1 $LOG_FILE

set timeout 300

expect {
  "$SUCCESS_EXPECTED" {
    puts success
  }
  "$ERROR_EXPECTED" {
    puts error
    exit 1
  } timeout {
    puts timeout
    exit 1
  }
}

EOF

    [ ! "$?" = 0 ] && echo error && do_stop
}

do_stop(){
    if ! do_status >/dev/null 2>&1
    then
        echo NOT running
        return 5
    fi

    TIME=4
    kill `cat $PID_FILE`
    EXIT_STATUS=$?
    while [ $TIME -gt 0 ] && [ ! "$EXIT_STATUS" = 0 ]
    do
        sleep 1
        TIME=$(( $TIME - 1 ))
        kill `cat $PID_FILE`
        EXIT_STATUS=$?
    done

    if [ $TIME = 0 ]
    then
        kill -9 `cat $PID_FILE`
        EXIT_STATUS=$?
    fi

    if [ "$EXIT_STATUS" = 0 ]
    then
        rm "$PID_FILE"
        echo stop
    else
        echo error
        return 2
    fi
}

do_status(){
    if [ -f $PID_FILE ]
    then
        echo "running (pid `cat $PID_FILE`)"
    else
        echo "NOT running"
        return 3
    fi
}

case $1 in
    start | stop | status) do_$1 ;;
    restart ) do_stop && do_start ;;
    * )
        echo "`basename $0` {start|stop|restart|status}"
        exit 4
esac