#!/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.
#
# This script is for running inkbench directly against a real web server
# which needs content in files.  This is not used for normal inkbench
# tests for proxy caches.
#
# Usage: make-server-content base_directory docsize_dist_file max_hotset
#
#        Example: make-server-content /usr/www/ docsize.specweb 1000


# To Do: option to create more actual files (to stress buffer cache)
#          change max_hotset to max_hotset + max_real_files
#          make sure max_real_files <= max_hotset

if [ $# -ne 3 ]; then
  echo "Usage: make-server-content base_directory docsize_dist_file max_hotset"
  exit 1 
fi

base=$1
file=$2
hotset=$3


if [ ! -f $file ]; then
  echo "Can't find docsize file: " $file
  exit 1
fi


if [ ! -d $base ]; then
  mkdir $base
  if [ -d $base ]; then
    echo "created directory: $base"
  else
    echo "couldn't create directory $base.  Exiting."
    exit 1
  fi
fi

if [ -d $base/content ]; then
   echo "using existing directory: $base/content"
else
  mkdir $base/content
  if [ -d $base/content ]; then
      echo "created directory: $base/content"
  else 
      echo "couldn't create directory $base/content.  Exiting."
      exit 1
  fi
fi

sizes=`awk '{print $1;}' $file`
for size in $sizes; do
  echo $size | awk '{printf "Creating file of size %7d:  ", $1;}'
  rm -f $base/content/$size
  echo $size | awk '{for(j=0;j<$1;j++) printf "X"; exit 1;}' > $base/content/$size
  ls -l $base/content/$size
done

echo "Creating symbolic links to make hotset of size $hotset: "
i=0
j=0
while [ $i -lt $hotset ] ; do
  if [ -d $base/$j ]; then
     echo -n "using existing directory: $base/$j"
  else
     mkdir $base/$j/
     echo -n "created directory: $base/$j"
  fi
  for size in $sizes; do
    rm -f $base/$j/length$size 
    ln -s ../content/$size $base/$j/length$size 
    i=`expr $i + 1`
  done
  j=`expr $j + 1`
  echo "   $i links done "
done
echo ''
echo 'done'
echo ''
echo 'When running inkbench:'
echo '  use hitrate=100'
echo "  use same document size distribution file: docsize_dist_file=$file"
echo '  comment out target_host and target_port'
echo '  comment out origin_autostart'
echo '  specify document_base=dir  (for example, document_base=~inktomi/inkbench/)'
echo ''