#!/bin/sh
# run-tomcat [start|stop|restart|graceful]
# d.gilbert, simplified tomcat/bin/catalina.sh to run on flybase servers
# feb03 test
#
# -----------------------------------------------------------------------------
# Start/Stop Script for the CATALINA Server
#
# Environment Variable Prequisites
#
#   JAVA_HOME       Must point at your Java Development Kit installation.
#   TOMCAT_HOME   May point at your Catalina "build" directory.
#     or this script must exist in $TOMCAT_HOME/bin/ folder 
#
# FIXME: for local configs:
#   $CATALINA_BASE/conf/catalina.policy
#   override $CATALINA_BASE/conf/server.xml  with "-config mypath/server.xml"
#   web.xml is hard coded in  org/apache/catalina/startup/Constants.java 
#    "catalina.base" / DefaultWebXml = "conf/web.xml";
#
# -----------------------------------------------------------------------------

TOMCAT_HOME="/bio/biodb/common/servers/tomcat" ; export TOMCAT_HOME
runconf="install.conf"

#------------------


# dgg, copied from setclasspath.sh
set_classpath() {

  if [ -z "$JAVA_HOME" ]; then
    echo "The JAVA_HOME environment variable is not defined"
    echo "It should point to a Java 1.4 runtime folder with bin/java program"
    exit 1
  fi
  if [ ! -r "$JAVA_HOME"/bin/java  ]; then
    echo "The JAVA_HOME environment variable is not defined correctly"
    echo "$JAVA_HOME/bin/java is missing "
    exit 1
  fi
  if [ -z "$TOMCAT_HOME" ]; then
    echo "The TOMCAT_HOME environment variable is not defined"
    echo "This environment variable is needed to run this program"
    exit 1
  fi
  if [ ! -r "$TOMCAT_HOME"/bin/bootstrap.jar ]; then
    echo "The TOMCAT_HOME environment variable is not defined correctly"
    echo "$TOMCAT_HOME/bin/bootstrap.jar  is missing "
    exit 1
  fi
  
  # Set the default -Djava.endorsed.dirs argument
  JAVA_ENDORSED_DIRS="$TOMCAT_HOME"/bin:"$TOMCAT_HOME"/common/endorsed
  
  # Set standard CLASSPATH
  CLASSPATH="$JAVA_HOME"/lib/tools.jar
  
  # Set standard commands for invoking Java.
  _RUNJAVA="$JAVA_HOME"/bin/java
  _RUNJDB="$JAVA_HOME"/bin/jdb
  _RUNJAVAC="$JAVA_HOME"/bin/javac

}

do_stop() {
	echo "do_stop "

  if test -f $pid_file
    then
      stopPID=`cat $pid_file`
      echo "Tomcat stopping process id: $stopPID"
  fi

  "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
    -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
    -Dcatalina.base="$CATALINA_BASE" \
    -Dcatalina.home="$TOMCAT_HOME" \
    -Djava.io.tmpdir="$CATALINA_TMPDIR" \
    org.apache.catalina.startup.Bootstrap "$@" stop

  # tom needs some time to stop ...
  sleep 6

  if test -f $pid_file
    then
      /bin/rm $pid_file
  fi

}

do_start() {
	echo "do_start "
	SECURITY=""
	
	##? add arg "-config mypath/server.xml"
  if [ "$1" = "-secure" ] ; then
	  shift
    echo "Using Security Manager"
    SECURITY="-Djava.security.manager -Djava.security.policy=$CATALINA_BASE/conf/catalina.policy "
  fi
  
  touch "$CATALINA_BASE/logs/$CATALINA_LOG"
	"$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
		-Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
		$SECURITY \
		-Dcatalina.base="$CATALINA_BASE" \
		-Dcatalina.home="$TOMCAT_HOME" \
		-Djava.io.tmpdir="$CATALINA_TMPDIR" \
		org.apache.catalina.startup.Bootstrap "$@" start \
		>> "$CATALINA_BASE/logs/$CATALINA_LOG" 2>&1 &
  
  #? check error $?
  
  ## make pid_file
	PID=$!
	echo $PID > $pid_file
	
	echo "Tomcat started with process id: $PID"
}


#------------------------------------
# main script

# resolve links - $0 may be a softlink
PRG="$0"
while [ -h "$PRG" ]; do
  ls=`ls -ld "$PRG"`
  link=`expr "$ls" : '.*-> \(.*\)$'`
  if expr "$link" : '.*/.*' > /dev/null; then
    PRG="$link"
  else
    PRG=`dirname "$PRG"`/"$link"
  fi
done

PRGDIR=`dirname "$PRG"`
# HERE=`cd "$PRGDIR/.." ; pwd`

## override (possibly) above settings
if [ -r "$PRGDIR"/$runconf ]; then
  . "$PRGDIR"/$runconf
fi
if [ -r "$PRGDIR"/${runconf}.local ]; then
  . "$PRGDIR"/${runconf}.local
fi
if [ -r "$PRGDIR"/tomcatenv.sh ]; then
  . "$PRGDIR"/tomcatenv.sh
fi

# if [ -z "$TOMCAT_HOME" ] ; then
#   # Get standard environment variables
# ## not now...
# ##   TOMCAT_HOME=`cd "$PRGDIR/.." ; pwd`
# fi
# if [ -r "$TOMCAT_HOME"/bin/setenv.sh ]; then
#   . "$TOMCAT_HOME"/bin/setenv.sh
# fi


# Get standard Java environment variables
set_classpath

CLASSPATH="$CLASSPATH":"$TOMCAT_HOME"/bin/bootstrap.jar

if [ -z "$CATALINA_BASE" ] ; then
  CATALINA_BASE="$TOMCAT_HOME"
fi

if [ -z "$CATALINA_TMPDIR" ] ; then
  # Define the java.io.tmpdir to use for Catalina
  CATALINA_TMPDIR="$CATALINA_BASE"/temp
fi

if [ -z "$CATALINA_LOG" ] ; then
  CATALINA_LOG="catalina.out"
fi

#dgg
pid_file="$CATALINA_BASE/logs/$CATALINA_LOG.pid" 

# echo "Using JAVA_HOME:     $JAVA_HOME"
echo "Using TOMCAT_HOME:   $TOMCAT_HOME"
echo "Using CATALINA_BASE: $CATALINA_BASE"
echo "Logging to:          $CATALINA_BASE/logs/$CATALINA_LOG"

# ----- Execute The Requested Command -----------------------------------------

if [ "$1" = "graceful" ] ; then
	## dgg here - check for tomcat.pid in process table
	shift
	if test -f $pid_file
	then
		PID=`cat $pid_file`
		if /bin/ps -p $PID | grep java > /dev/null
		then    
		  echo "A tomcat process is running: pid $PID"
		  /bin/ps -fp $PID
			exit 0
		fi
	fi
	
	do_start $@

elif [ "$1" = "restart" ] ; then
	## dgg here - check for tomcat.pid in process table
	shift
	if test -f $pid_file
	then
		PID=`cat $pid_file`
		do_stop
		## kill fails; use stop anyway
		if /bin/kill -9 $PID > /dev/null 2> /dev/null
		then
			if /bin/ps -p $PID | grep java > /dev/null
			then     
		    echo "A tomcat process cannnot be killed: pid $PID"
  		  /bin/ps -fp $PID
				exit 1
			fi
		fi
	fi
	
	do_start $@
  
elif [ "$1" = "start" ] ; then
	shift
	do_start $@

elif [ "$1" = "stop" ] ; then
	shift
	do_stop $@
	
else
  echo "Usage: $0 [ command ... ]"
  echo "commands:"
  echo "  start             Start Tomcat server"
  echo "  stop              Stop Tomcat"
  echo "  restart           Re-Start Tomcat server"
  echo "  graceful          check for Tomcat process and start if not running "
  echo "  start,..  -secure    Start with security manager"
  exit 1

fi