Package ubic.gemma.core.util

Class XMLUtils

  • public class XMLUtils
extends Object
    Handy methods for dealing with XML.
    Author:
    pavlidis

    • Constructor Detail

      • XMLUtils

        public XMLUtils()

    • Method Detail

      • createDocumentBuilder

        public static DocumentBuilder createDocumentBuilder​(EntityResolver entityResolver)
        Create a new DocumentBuilder with some good presets for general usage.

        For security reasons (and also performance), an EntityResolver must be supplied to resolve DTDs or XSD schemas.

      • extractMultipleChildren

        public static List<String> extractMultipleChildren​(Node parent,
                                                   String elementName)

      • extractOneChildText

        public static String extractOneChildText​(Node parent,
                                         String elementName)

      • extractOneChild

        public static Node extractOneChild​(Node parent,
                                   String elementName)

      • extractTagData

        public static Collection<String> extractTagData​(Document doc,
                                                String tag)
        Parameters:
        doc - - the xml document to search through
        tag - -the name of the element we are looking for
        Returns:
        a collection of strings that represent all the data contained within the given tag (for each instance of that tag)

      • getItem

        public static Node getItem​(NodeList nodeList,
                           int i)
        Obtain an item from a NodeList at a given index.

      • getUniqueItem

        public static Node getUniqueItem​(NodeList nodeList)
        Obtain a single item from a NodeList.

      • getTextValue

        public static String getTextValue​(Node ele)
        Make the horrible DOM API slightly more bearable: get the text value we know this element contains. Borrowed from the Spring API. Using Node.getTextContent() to fix failing tests, if there is a problem, see history before Feb 22. 2018 Also, this is the previous note (related to the code I removed): * Note that we can't really use the alternative Node.getTextContent() because it isn't supported by older Xerces * implementations (1.x), which tend to leak into the classloader. Causes recurring problems with tests.
        Parameters:
        ele - element
        Returns:
        text value