ShoppingList/shellScripts/ShoppingListAdd.sh

#!/bin/bash

SHOPPINGITEM=""
AMOUNT=""
UNIT=""
SITEID=""
PARAMS=""
SESSIONID=""

while (( "$#" )); do
  case "$1" in
    --shoppingAmount)
      if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
        AMOUNT=$2
        shift 2
      else
        echo "Error: Argument for $1 is missing" >&2
        exit 1
      fi
      ;;
    --shoppingUnit)
      if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
        UNIT=$2
        shift 2
      else
        echo "Error: Argument for $1 is missing" >&2
        exit 1
      fi
      ;;
    --shoppingProduct)
      if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
        SHOPPINGITEM=$2
        shift 2
      else
        echo "Error: Argument for $1 is missing" >&2
        exit 1
      fi
      ;;
    --siteId)
      if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
        SITEID=$2
        shift 2
      else
        echo "Error: Argument for $1 is missing" >&2
        exit 1
      fi
      ;;
    --sessionId)
      if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
        SESSIONID=$2
        shift 2
      else
        echo "Error: Argument for $1 is missing" >&2
        exit 1
      fi
      ;;
    -*|--*=) # unsupported flags
      echo "Error: Unsupported flag $1" >&2
      exit 1
      ;;
    *) # preserve positional arguments
      PARAMS="$PARAMS $1"
      shift
      ;;
  esac
done

# set positional arguments in their proper place
eval set -- "$PARAMS"

if [ "$SHOPPINGITEM" = "" ]
then
	echo "Was soll ich auf die Liste setzen?"
	exit 1
else
	lengthAmount=${#AMOUNT}
	lengthUnit=${#UNIT}
	
	if [ $lengthAmount -gt 0 ]
	then
		if [ $lengthUnit -gt 0 ]
		then
			java -jar /home/pi/hc_scripts/ShoppingList.jar --action addToList --shoppingAmount $AMOUNT --shoppingUnit $UNIT --shoppingProduct $SHOPPINGITEM
		else
			java -jar /home/pi/hc_scripts/ShoppingList.jar --action addToList --shoppingAmount $AMOUNT --shoppingProduct $SHOPPINGITEM
		fi
	else
		java -jar /home/pi/hc_scripts/ShoppingList.jar --action addToList --shoppingProduct $SHOPPINGITEM
	fi

	if [ "$?" -eq "0" ]
	then
		exit 0
	else
		exit 1
	fi
fi