FWD » Core Development » User Interface

#!/bin/bash

#set -x

# standard FWD interactive client startup script

# defaults

whole_path="$(cd "$(dirname "$0")"; pwd)/$(basename "$0")"

srcname=$(basename "$whole_path")

srcpath=$(dirname "$whole_path")

[ ! -f ${srcpath}/appname ] && echo "FATAL: No appname to source in $srcpath" && exit

[ -z "$appname" ] && . ${srcpath}/appname

suspend="n"

prog="java"

dump="-XX:+HeapDumpOnOutOfMemoryError"

#dump="-XX:+HeapDumpOnOutOfMemoryError -XX:OnOutOfMemoryError='./stack_dump.sh %p'"

host="net:server:host=localhost"

batch_parms="client:mode:batch=true client:driver:background=true"

driver_type="gui"

instance=0

portbase=3333

secure=false

portstep=100

maxheap=""

# Set this to debug the ssl handshake and include in jvm parms

#ssl_debug="-Djavax.net.debug=ssl:handshake"

# Determine the configured JDK

#jver is 18 for java 1.8, 15 for java 1.5, 110 for java 11, 170 for java 17 etc.

jver=$(${prog} -version 2>&1 | awk -F '"' '/version/ {print $2}' | awk -F '.' '{sub("^$", "0", $2); print $1$2}')

# Ensure UTF-8 is set

ensure_utf8_lang()

{

   # Get the current LANG setting and encoding portion (after the dot '.')

   current_lang="${LANG}"

   encoding="${current_lang##*.}"

   shopt -s nocasematch

   # Check if the encoding is not UTF-8

   if [[ ! "$encoding" =~ ^utf-?8$ ]]; then

      # Warn the user

      echo "Warning: The current LANG setting (${current_lang}) is not using UTF-8 encoding."

      # Set LANG to LANGUAGE.UTF-8, or fallback to en_US.UTF-8 if LANGUAGE is not set

      [ -z "$LANGUAGE" ] && new_lang="en_US.UTF-8" || new_lang="${LANGUAGE}.UTF-8"

      # Apply the new LANG setting

      export LANG="$new_lang"

      # Inform the user

      echo "LANG has been updated to: ${LANG}"

   fi

   shopt -u nocasematch

}

# help text

show_usage()

{

   i=0;        usage[$i]="\nUsage: $0 [-d<port>] [-s] [-c<cfgfile>] [-i<instance>] [-m<path>] [-2] [-b] [-k<password>] [-t<password>] [-p<procedure>] [-x<heap>] [-o<cmd-line-option:params>] [--test] [--wb] [--swing] [--terminal] \n"

   i=$((i+1)); usage[$i]="Where:\n"

   i=$((i+1)); usage[$i]="d \t= enable JVM debug mode, use the specified TCP port"

   i=$((i+1)); usage[$i]="s \t= in JVM debug mode enable, suspend the JVM on startup (does not suspend by default)"

   i=$((i+1)); usage[$i]="h \t= hostname or IP address for the server (defaults to localhost)"

   i=$((i+1)); usage[$i]="i \t= server instance number (0..9, assigns the FWD server port, defaults to 0) to which to connect"

   i=$((i+1)); usage[$i]="m \t= Enable heap dump on OOME to given path"

   i=$((i+1)); usage[$i]="c \t= config file name (FWD bootstrap config file name, defaults to standard_client.xml)"

   i=$((i+1)); usage[$i]="2 \t= enable C2 HotSpot compiler (server compiler for the JVM)"

   i=$((i+1)); usage[$i]="b \t= run with client in batch mode (forces --terminal)"

   i=$((i+1)); usage[$i]="k \t= password for keystore"

   i=$((i+1)); usage[$i]="t \t= password for trust"

   i=$((i+1)); usage[$i]="p \t= procedure to run"

   i=$((i+1)); usage[$i]="x \t= set JVM max heap size to <heap> (must be an integer number of MB)"

   i=$((i+1)); usage[$i]="o \t= options (params) to pass to cmd-line-option:params. Make sure this is the last on the command line, and in \"\""

   i=$((i+1)); usage[$i]="--test \t\t= test mode (displays the command but doesn't execute)"

   i=$((i+1)); usage[$i]="--wb \t\t= enable widget browser for debug purposes"

   i=$((i+1)); usage[$i]="--swing \t= use Swing client"

   i=$((i+1)); usage[$i]="--terminal\t= use ChUI driver"

   i=$((i+1)); usage[$i]="--no-appcds\t= disable AppCDS: full classpath discovery, no shared archive (pre-AppCDS behavior)"

   for i in "${usage[@]}"; do

      echo -e $i

   done

}

# process options

while getopts "?d:sh:i:m:c:2bk:t:p:o:x:-:" opt; do

   case $opt in

      d  ) debug=true

           dport=$OPTARG ;;

      s  ) suspend="y" ;;

      h  ) host="net:server:host="$OPTARG ;;

      i  ) instance=$OPTARG ;;

      m  ) dump+=" -XX:HeapDumpPath=${OPTARG}" ;;

      c  ) cfg=$OPTARG ;;

      2  ) srvr="-server" ;;

      b  ) batch="${batch_parms}"

           use_terminal=true ;;

      k  ) kpasswd=$OPTARG ;;

      t  ) tpasswd=$OPTARG ;;

      p  ) procedure=$OPTARG ;;

      x  ) maxheap="-Xmx"${OPTARG}"m" ;;

      o  ) # Save the remaining command-line arguments into 'params'

           shift $((OPTIND - 2))  # Shift to the first argument after '-o'

           params=$*              # Capture all remaining text

           break                  # Exit the loop as we are done

           ;;

      -  ) case ${OPTARG} in

              test     ) test=true ;;

              wb       ) wb="-Dwidget.browser=true" ;;

              swing    ) use_swing=true ;;

              terminal ) use_terminal=true

                         driver_type="chui" ;;

              no-appcds ) no_appcds=true ;;

           esac ;;

      \? ) show_usage

           exit 1 ;;

   esac

done

shift $(($OPTIND - 1))

# Determine driver and token

if [ "$use_swing" == true ]; then

   client_driver_type="client:driver:type=${driver_type}_swing"

   if [ "$use_terminal" == true ]; then

      client_driver_type+=" client:chui:rows=24 client:chui:columns=80 client:chui:background=0x000000 client:chui:foreground=0xFFA500 client:chui:selection=0x0000FF client:chui:fontname=monospaced client:chui:fontsize=12"

   fi

else

   if [ "$use_terminal" == true ]; then

      client_driver_type="client:driver:type=${driver_type}_native"

   else

      client_driver_type="client:driver:type=${driver_type}_swing"

   fi

fi

token="client:project:token=${driver_type}"

if [ -n "$batch" ]; then

   secure=true

   unset client_driver_type

fi

# pass the remaining command line arguments directly to the java driver

# WARNING: any arguments with embedded spaces are not passed properly; for

#          example, if you pass this to the script:

#             client:cmd-line-option:parameter="\"\\\"some text here\\\"\""

#          you would expect the following to be passed to the java driver:

#             client:cmd-line-option:parameter="\"some text here\""

#          but that does not happen; when running the driver directly this would

#          work fine; via the script the result is that the driver sees add'l 

#          parameters, which will cause it to think it has add'l bootstrap config

#          files to load 

if [ -z "$params" ]; then

   remainder="$@"

fi

# final arg prep

sport=$(($portbase + $instance))

iport=$(($portbase + $instance + $portstep))

port="net:connection:secure=${secure} net:server:secure_port=$sport net:server:insecure_port=$iport"

# Prevent NIO sockets

nio="net:socket:nio=false"

if [ "$debug" == true ]; then

   [ -f "/.dockerenv" ] && daddress="0.0.0.0:${dport}" || daddress="${dport}"

   dtxt="-agentlib:jdwp=transport=dt_socket,server=y,suspend=${suspend},address=${daddress}"

fi

if [ -n "$cfg" ]; then

   # Path could be relative to the srcpath, so calculate it and test existence.

   p=$(cd $(dirname ${srcpath}/${cfg}) 2>/dev/null; echo $(pwd))

   f=$(basename $cfg)

   [ -f "${p}/${f}" ] && cfg="${p}/${f}"

   token=""

   host=""

fi

# Server with store   

if [ -n "$tpasswd" ]; then

   tpasswd="ssl-socket:truststore:password=${tpasswd}"

fi   

# Connect with trust

if [ -n "$kpasswd" ]; then

   kpasswd="ssl-socket:keystore:password=${kpasswd}"

fi

# Pass in: client:cmd-line-option:startup-procedure=<file.p>

if [ -n "$procedure" ]; then

   procedure="client:cmd-line-option:startup-procedure=${procedure}"

fi

# Pass in options (params): client:cmd-line-option:parameter=<params>

if [ -n "$params" ]; then

   params="'client:cmd-line-option:parameter=${params}'"

fi

# getcp.sh and getspi.sh are helpers for setting up the classpath and spi for the given application. 

# This allows more flexibility in where the FWD configuration is placed. It can be one directory up,

# and then in lib, or in /opt/fwd/lib, or specified by FWD_LIB exported or up to the build directory,

# then down to lib. If the helper isn't found, we can only fall back to the original method.

helper=$(cd ${srcpath}/..; echo $(pwd))

export PATH=$helper:$PATH

if [ ".$(which getcp.sh)." == ".." ]; then

   lpath="-Djava.library.path=../lib/"

   cpath="-classpath ../lib/p2j.jar:"

   for each in ../lib/*.jar

   do

      cpath=$cpath:$each

   done

else

   # --appcds tells getcp.sh to prefer the curated client classpath published by

   # deploy_appcds.sh (appcds/client/<type>.cpath), matching the AppCDS archive.

   # It falls back to the normal FWD library discovery when no curated file

   # exists, so this is safe on deployments without AppCDS. With --no-appcds we

   # omit the flag so getcp.sh does full FWD library discovery (pre-AppCDS behavior).

   appcds_flag="--appcds"

   [ "$no_appcds" == true ] && appcds_flag=""

   cpath=$(getcp.sh $appname $srcpath $appcds_flag)

   lpath="-Djava.library.path="$(getspi.sh "$cpath" "p2j.jar")

   cpath="-classpath $cpath"

fi

# Enable AppCDS for the client when a curated archive is present. This is the

# complement to the curated classpath above: -XX:SharedArchiveFile points the JVM

# at the pre-parsed class archive built by deploy_appcds.sh, while the classpath

# (from getcp.sh --appcds) determines which jars are actually loaded. They are

# independent JVM inputs -- the archive only accelerates classes that are also on

# the classpath, and -Xshare:auto silently ignores the archive if the runtime

# classpath does not match the one it was dumped against. This mirrors the

# webClient jvmArgs in directory.xml and the cdsparams assembled in server.sh.

appcds_type="default"

cdsparams=""

if [ "$no_appcds" != true ]; then

   for cand in "/opt/${appname}/appcds/client/${appcds_type}.jsa" \

               "${srcpath}/../appcds/client/${appcds_type}.jsa"; do

      if [ -f "$cand" ]; then

         [ "$debug" == true ] && p="-Xshare:on -Xlog:class+path=info" || p="-Xshare:auto"

         cdsparams="${p} -XX:SharedArchiveFile=$cand"

         break

      fi

   done

fi

# Ensure UTF-8 encoding

original_lang="${LANG}"

ensure_utf8_lang

# run the FWD client

java_args="$srvr $maxheap $dump $wb $dtxt $lpath $cpath $cdsparams"

# Compatibility with Java 25

if [ $jver -ge 240 ]; then

   java_args+=" --enable-native-access=ALL-UNNAMED" 

fi

client_driver_args="$kpasswd $tpasswd $token $host $nio $port $client_driver_type $cfg $batch $procedure $params $remainder"

cmd="$prog $java_args com.goldencode.p2j.main.ClientDriver $client_driver_args"

if [ "$test" == "true" ]; then

   echo $cmd

else

   eval $cmd

fi

# Restore the original LANG setting, if sourced ad set

[ "${BASH_SOURCE[0]}" != "${0}" ] && [ ."$original_lang". != ".." ] && export LANG="$original_lang"