Package ubic.gemma.core.util

Class XMLUtils

java.lang.Object
ubic.gemma.core.util.XMLUtils
public class XMLUtils extends Object
Handy methods for dealing with XML.
Author:
pavlidis

  • Constructor Details

    • XMLUtils

      public XMLUtils()

  • Method Details

    • 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

    • compile

      public static XPathExpression compile(String expr)
      Compile an XPath expression.

    • evaluate

      public static NodeList evaluate(XPathExpression xpath, Node item)
      Evaluate an XPath expression that produces a NodeList.

    • evaluateToString

      public static String evaluateToString(XPathExpression xpath, Node item)
      Evaluate an XPath expression that produces a NodeList.