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  1. import java.io.StringReader;
  2. import java.util.Iterator;
  3. import javax.xml.namespace.NamespaceContext;
  4. import javax.xml.parsers.DocumentBuilder;
  5. import javax.xml.parsers.DocumentBuilderFactory;
  6. import javax.xml.xpath.XPath;
  7. import javax.xml.xpath.XPathConstants;
  8. import javax.xml.xpath.XPathFactory;
  9. import org.w3c.dom.Document;
  10. import org.w3c.dom.NodeList;
  11. import org.xml.sax.InputSource;
  12.  
  13. class Ideone {
  14. 	public static void main(String[] args) throws Exception {
  15. 		String schema = "<xs:schema xmlns:xs=\"http://w...content-available-to-author-only...3.org/2001/XMLSchema\" targetNamespace=\"http://x...content-available-to-author-only...e.com/cloud/adapter/nxsd/surrogate/request\"\r\n" + 
  16. 		                "       xmlns=\"http://x...content-available-to-author-only...e.com/cloud/adapter/nxsd/surrogate/request\"\r\n" + 
  17. 		                "       elementFormDefault=\"qualified\">\r\n" + 
  18. 		                "<xs:element name=\"myapp\">\r\n" + 
  19. 		                "    <xs:complexType>\r\n" + 
  20. 		                "    <xs:sequence>\r\n" + 
  21. 		                "        <xs:element name=\"content\">\r\n" + 
  22. 		                "            <xs:complexType>\r\n" + 
  23. 		                "                <xs:sequence>\r\n" + 
  24. 		                "                    <xs:element name=\"EmployeeID\" type=\"xs:string\" maxOccurs=\"1\" minOccurs=\"0\"/>\r\n" + 
  25. 		                "                    <xs:element name=\"EName\" type=\"xs:string\" maxOccurs=\"1\" minOccurs=\"0\"/>\r\n" + 
  26. 		                "                </xs:sequence>\r\n" + 
  27. 		                "            </xs:complexType>\r\n" + 
  28. 		                "        </xs:element>\r\n" + 
  29. 		                "        <xs:element name=\"attribute\">\r\n" + 
  30. 		                "            <xs:complexType>\r\n" + 
  31. 		                "                <xs:sequence>\r\n" + 
  32. 		                "                    <xs:element name=\"item\" type=\"xs:integer\" maxOccurs=\"1\" minOccurs=\"0\"/>                        \r\n" + 
  33. 		                "                </xs:sequence>\r\n" + 
  34. 		                "            </xs:complexType>\r\n" + 
  35. 		                "        </xs:element>\r\n" + 
  36. 		                "    </xs:sequence>\r\n" + 
  37. 		                "    </xs:complexType>\r\n" + 
  38. 		                "</xs:element>\r\n" + 
  39. 		                "</xs:schema>\r\n";
  40. 		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
  41. 		factory.setNamespaceAware(true);
  42. 		DocumentBuilder builder = factory.newDocumentBuilder();
  43. 		Document doc = builder.parse(new InputSource(new StringReader(schema)));
  44.  
  45. 		XPathFactory xPathFactory = XPathFactory.newInstance();
  46. 		XPath xPath = xPathFactory.newXPath();
  47. 		xPath.setNamespaceContext(new NamespaceContext() {
  48. 			@Override
  49. 			public String getNamespaceURI(String prefix) {
  50. 				switch (prefix) {
  51. 					case "xs": return "http://w...content-available-to-author-only...3.org/2001/XMLSchema";
  52. 					default:   return null;
  53. 				}
  54. 			}
  55. 			@Override
  56. 			public String getPrefix(String namespaceURI) {
  57. 				throw new UnsupportedOperationException();
  58. 			}
  59. 			@Override
  60. 			public Iterator<String> getPrefixes(String namespaceURI) {
  61. 				throw new UnsupportedOperationException();
  62. 			}
  63. 		});
  64.  
  65. 		String expression = "//xs:element[@name='myapp']//xs:element[@name='content']";
  66. 		NodeList nodeList = (NodeList) xPath.evaluate(expression,doc, XPathConstants.NODESET);
  67.  
  68. 		System.out.println("Node count: " + nodeList.getLength());
  69. 	}
  70. }
Success #stdin #stdout 0.41s 42688KB
comments (?)
stdin 
Standard input is empty
stdout 
Node count: 1
https://ideone.com/824Wxl
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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