#!/bin/sh
#
# init script for XmlRpcResourceManager
#
# chkconfig: 345 88 22
# description: CAS Resource Manager
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE.txt 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.
#
# $Id$

# OS specific support.  $var _must_ be set to either true or false.
cygwin=false
os400=false
darwin=false
case "`uname`" in
CYGWIN*) cygwin=true;;
OS400*) os400=true;;
Darwin*) darwin=true;;
esac

# 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

# Get standard environment variables
PRGDIR=`dirname "$PRG"`

# Only set OODT_HOME if not already set
[ -z "$OODT_HOME" ] && OODT_HOME=`cd "$PRGDIR/../.." ; pwd`

# Get OODT environment set up
if [ -r "$OODT_HOME"/bin/env.sh ]; then
  . "$OODT_HOME"/bin/env.sh
fi

# Only set RESMGR_HOME if not already set
if [ -z "$RESMGR_HOME" ]; then
  RESMGR_HOME="$OODT_HOME"/resmgr
  export RESMGR_HOME
fi

if [ -z "$RESMGR_PID" ]; then
  RESMGR_PID="$RESMGR_HOME"/run/cas.resmgr.pid
fi

# For Cygwin, ensure paths are in UNIX format before anything is touched
if $cygwin; then
  [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
  [ -n "$JRE_HOME" ] && JRE_HOME=`cygpath --unix "$JRE_HOME"`
  [ -n "$OODT_HOME" ] && OODT_HOME=`cygpath --unix "$OODT_HOME"`
  [ -n "$RESMGR_HOME" ] && RESMGR_HOME=`cygpath --unix "$RESMGR_HOME"`
  [ -n "$CLASSPATH" ] && CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
fi

if [ "$1" = "start" ]; then
  if [ ! -z "$RESMGR_PID" ]; then
    if [ -f "$RESMGR_PID" ]; then
      echo "PID file ($RESMGR_PID) found. Is Resource Manager still running? Start aborted."
      exit 1
    fi
  fi

  # In case this script was run from somewhere else cd to this directory
  cd "$RESMGR_HOME"/bin

  "$_RUNJAVA" $JAVA_OPTS $OODT_OPTS \
    -Djava.ext.dirs="$RESMGR_HOME"/lib \
    -Djava.util.logging.config.file="$RESMGR_HOME"/etc/logging.properties \
    -Dorg.apache.oodt.cas.resource.properties="$RESMGR_HOME"/etc/resource.properties \
    -Djava.io.tmpdir="$OODT_TMPDIR" \
    org.apache.oodt.cas.resource.system.XmlRpcResourceManager \
    --portNum "$RESMGR_PORT" 2>&1 &

  if [ ! -z "$RESMGR_PID" ]; then
    echo $! > $RESMGR_PID
  fi

  if [ $have_tty -eq 1 ]; then
    echo "Resource Manager started PID file ($RESMGR_PID)."
  fi

elif [ "$1" = "stop" ]; then

  shift

  SLEEP=5
  if [ ! -z "$1" ]; then
    echo $1 | grep "[^0-9]" > /dev/null 2>&1
    if [ $? -eq 1 ]; then
      SLEEP=$1
      shift
    fi
  fi

  FORCE=0
  if [ "$1" = "-force" ]; then
    shift
    FORCE=1
  fi

  if [ ! -z "$RESMGR_PID" ]; then
    if [ -f "$RESMGR_PID" ]; then
      kill `cat $RESMGR_PID` >/dev/null 2>&1
      if [ $? -eq 1 ]; then
        echo "PID file ($RESMGR_PID) found but no matching process was found. Stop aborted."
        exit 1
      fi
    else
      echo "\$RESMGR_PID was set ($RESMGR_PID) but the specified file does not exist. Is Resource Manager running? Stop aborted."
      exit 1
    fi
  fi

  if [ ! -z "$RESMGR_PID" ]; then
    if [ -f "$RESMGR_PID" ]; then
      while [ $SLEEP -ge 0 ]; do
        kill -0 `cat $RESMGR_PID` >/dev/null 2>&1
        if [ $? -eq 1 ]; then
          rm $RESMGR_PID
          break
        fi
        if [ $SLEEP -gt 0 ]; then
          sleep 1
        fi
        if [ $SLEEP -eq 0 ]; then
          if [ $FORCE -eq 0 ]; then
            echo "Resource Manager did not stop in time. PID file was not removed."
          fi
        fi
        SLEEP=`expr $SLEEP - 1 `
      done
    fi
  fi

  if [ $FORCE -eq 1 ]; then
    if [ -z "$RESMGR_PID" ]; then
      echo "Kill failed: \$RESMGR_PID not set"
    else
      if [ -f "$RESMGR_PID" ]; then
        echo "Killing: `cat $RESMGR_PID`"
        kill -9 `cat $RESMGR_PID`
        rm $RESMGR_PID
      fi
    fi
  fi

else
  echo "Usage: resmgr {start|stop}"
  exit 1
fi