android parsing xml content from String

Following is the xml content which i get after decrypting an encrypted value

<card order_no="1" id="cmpe0rhm3ym5ha8wlqp4jt7u" place="HOME">33</card>

Now i have the above content in a String called message.

Now i want parse the values such as id and place using the main tag "card" and the number "33" also to be parsed.

Following is what i have been tried

InputStream inputStream = new ByteArrayInputStream(message.getBytes());
                    XmlPullParser cardParser = Xml.newPullParser();
                    cardParser.setInput(inputStream, null);

                    Map<String, String> attrs = XMLParsers.getAttributes(cardParser);
                    String cardTag = cardParser.getName();
                    if (cardTag.equalsIgnoreCase("card")) 
                    {
                        CardTag card = new CardTag();                       
                        card.setId(attrs.get("id"));
                        card.setPlace(attrs.get("place"));
                        card.setCardNumericValue(cardParser.getText());
                        return card;
                    }

I have stored the string in an InputStream and again tried to parse it, but i am getting a null pointer exception

Value of String cardTag seems to be null when i printed it. NullPointerException rises at if condition "if (cardTag.equalsIgnoreCase("card"))"

How to do this