net.sourceforge.ajaxtags.helpers
Class XMLUtils

java.lang.Object
  net.sourceforge.ajaxtags.helpers.XMLUtils

public final class XMLUtils
extends Object

Some helper functions for XML.

Method Summary

static Document	createDocument() Create a new Document.
static NodeList	evaluateXPathExpression(String expression, Node node) Evaluate XPath expression and return list of nodes.
static Object	evaluateXPathExpression(String expression, Node node, QName returnValue) Evaluate XPath expression.
static String	format(String xml) Parse string as XML document and return string with reformatted document.
static XPath	getNewXPath() Create and return a new XPath object from ThreadLocal.
static Document	getXMLDocument(String xml) Parse string with XML content to Document.
static String	toString(Document document) Transform document to string representation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

evaluateXPathExpression

public static NodeList evaluateXPathExpression(String expression,
                                               Node node)
                                        throws XPathExpressionException

Evaluate XPath expression and return list of nodes.

Parameters:

expression - XPath expression

node - DOM node

Returns:

list of DOM nodes

Throws:

XPathExpressionException - if expression cannot be evaluated

evaluateXPathExpression

public static Object evaluateXPathExpression(String expression,
                                             Node node,
                                             QName returnValue)
                                      throws XPathExpressionException

Evaluate XPath expression.

Parameters:

expression - XPath expression

node - DOM node

returnValue - the desired return type

Returns:

result of evaluating an XPath expression as an Object of returnType

Throws:

XPathExpressionException - if expression cannot be evaluated

getNewXPath

public static XPath getNewXPath()

Create and return a new XPath object from ThreadLocal.

Returns:

a new XPath object.

getXMLDocument

public static Document getXMLDocument(String xml)
                               throws SAXException

Parse string with XML content to Document.

Parameters:

xml - string with XML content

Returns:

Document

Throws:

SAXException - if any parse errors occur

createDocument

public static Document createDocument()
                               throws ParserConfigurationException

Create a new Document.

Returns:

an empty document

Throws:

ParserConfigurationException - if a DocumentBuilder cannot be created

format

public static String format(String xml)
                     throws TransformerException,
                            SAXException

Parse string as XML document and return string with reformatted document.

Parameters:

xml - string with XML content

Returns:

reformatted content

Throws:

TransformerException - if it is not possible to transform document to string

SAXException - if any parse errors occur

toString

public static String toString(Document document)
                       throws TransformerException

Transform document to string representation.

Parameters:

document - XHTML document

Returns:

string representation of document

Throws:

TransformerException - if it is not possible to create a Transformer instance or to transform document