bashLogger

function bashLogger() {
  local logLevel="INFO"
  local logMessage=""

  [[ $# -ge 1 ]] && { logMessage=$1;shift;}
  [[ $# -ge 1 ]] && { logLevel=${logMessage}; logMessage=$1; shift;}

  local additionalMessages="$@"
  local timestamp=$(TZ=UTC-1 date +'%Y-%m-%d %H:%M:%S,%3N')

  if [[ ${BASH_LOG_FORMAT-} != "JSON" ]]; then
    echo -e "[${timestamp}] ${logLevel} ${logMessage} ${additionalMessages}"
  elif [[ ${BASH_LOG_FORMAT-} == "JSON" ]]; then
    echo -e "{\"domain\":\"${IKEP_DOMAIN}\",\"ikep-stage\":\"${IKEP_STAGE}\",\"ikep-cluster\":\"${IKEP_CLUSTER}\",\"tag\":\"${IKEP_TAG}\",\"message\":\"[${timestamp}] ${logLevel} ${logMessage} ${additionalMessages}\"}"
  fi
}

function bashLoggerMultiLine() {
  local logLevel="INFO"
  local logMessage=""

  [[ $# -ge 1 ]] && { logMessage=$1;shift;}
  [[ $# -ge 1 ]] && { logLevel=${logMessage}; logMessage=$1; shift;}

  # Adds date and time before printing the line.
  while read line; do bashLogger ${logLevel} ${logMessage} $line; done
}