Fixes issue with batch script while using bundled jdk to execute the …

…demo install script

Signed-off-by: Darshit Chanpura <[email protected]>

tools/install_demo_configuration.bat

@@ -1,6 +1,14 @@
 @echo off
 set DIR=%~dp0
 
+set CUR_DIR=%DIR%
+
+rem set opensearch home for instances when using bundled jdk
+if not defined OPENSEARCH_HOME (
+  for %%I in ("%DIR%..\..\..") do set "OPENSEARCH_HOME=%%~dpfI"
+)
+cd %CUR_DIR%
+
 if not "%OPENSEARCH_JAVA_HOME%" == "" (
   set "JAVA=%OPENSEARCH_JAVA_HOME%\bin\java.exe"
   set JAVA_TYPE=OPENSEARCH_JAVA_HOME
@@ -13,9 +21,9 @@ if not "%OPENSEARCH_JAVA_HOME%" == "" (
   set JAVA_TYPE=bundled jdk
 )
 
-if not exist !JAVA! (
-  echo "could not find java in !JAVA_TYPE! at !JAVA!" >&2
+if not exist "%JAVA%" (
+  echo "could not find java in %JAVA_TYPE% at %JAVA%" >&2
   exit /b 1
 )
 
-%JAVA% -Dorg.apache.logging.log4j.simplelog.StatusLogger.level=OFF -cp "%DIR%\..\*;%DIR%\..\..\..\lib\*;%DIR%\..\deps\*" org.opensearch.security.tools.democonfig.Installer %DIR% %* 2> nul
+"%JAVA%" -Dorg.apache.logging.log4j.simplelog.StatusLogger.level=OFF -cp "%DIR%\..\*;%DIR%\..\..\..\lib\*;%DIR%\..\deps\*" org.opensearch.security.tools.democonfig.Installer %DIR% %* 2> nul