dom xml

gistfile1.txt

    private String getISBN(Document doc) {
        //<marc:datafield tag="020" ind1=" " ind2=" "><marc:subfield code="a">0809305186</marc:subfield></marc:datafield>
        String isbn = new String();
        System.out.println("doc:"+doc.getDocumentElement());
        NodeList nl = doc.getElementsByTagName("marc:datafield").;
        System.out.println("datafieldlen:"+nl.getLength());
        for (int i = 0; i < nl.getLength(); i++) {
            Node n = nl.item(i);
            NamedNodeMap attributes = n.getAttributes();
            Node a = attributes.getNamedItem("tag");
            if (a != null) {
                if (a.getTextContent().equals("020")) {
                    NodeList nl2 = n.getChildNodes();
                    for (int ii = 0; ii < nl2.getLength(); ii++) {
                        Node n2 = nl2.item(ii);
                        System.out.println("here");
                        NamedNodeMap attributes2 = n2.getAttributes();
                        Node a2 = attributes2.getNamedItem("code");
                        if (a2 != null) {
                            if (a2.getTextContent().equals("a")) {
                                Element e = (Element) n2;
                                String isbn_e = e.getTextContent();
                                if (isbn_e.length() == 10) {
                                    isbn = isbn_e;
                                }
                            }
                        }
                    }
                }
            }
        }
        System.out.println("ISBN:"+isbn);
        return "";
    }