com.caucho.xml2

Class XmlUtil

java.lang.Object

com.caucho.xml2.XmlUtil

public class XmlUtil
extends java.lang.Object

XML utilities for manipulating names and the DOM.

Constructor Summary

Constructors

Constructor and Description
XmlUtil()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	getNamespace(org.w3c.dom.Node node, java.lang.String prefix) Returns the namespace for the given prefix.
static org.w3c.dom.Node	getNext(org.w3c.dom.Node node) Get the next node in a depth first preorder traversal.
static java.lang.String	getPIAttribute(java.lang.String pi, java.lang.String key) Extracts an attribute from a processing instruction.
static org.w3c.dom.Node	getPrevious(org.w3c.dom.Node node) Get the previous node in a DFS preorder traversal
static boolean	isWhitespace(java.lang.String text) Extracts the text value from the node.
static java.util.HashMap<java.lang.String,java.lang.String>	splitNameList(java.lang.String name) Treats the string as an attribute list, splitting it into a HashMap.
static void	textValue(CharBuffer cb, org.w3c.dom.Node node) Extracts the text value from the node.
static java.lang.String	textValue(org.w3c.dom.Node node) Extracts the text value from the node.
static void	toSAX(org.w3c.dom.Node node, org.xml.sax.ContentHandler handler) Sends data to the helper.

Methods inherited from class java.lang.Object

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

Constructor Detail

XmlUtil

public XmlUtil()

Method Detail

splitNameList

public static java.util.HashMap<java.lang.String,java.lang.String> splitNameList(java.lang.String name)
                                                                          throws java.io.IOException

Treats the string as an attribute list, splitting it into a HashMap.

Parameters:

name - a string to be interpreted as an attribute list

Returns:

a hash map containing the attribute (key, value) pairs.

Throws:

java.io.IOException

getPIAttribute

public static java.lang.String getPIAttribute(java.lang.String pi,
                                              java.lang.String key)

Extracts an attribute from a processing instruction. Since processing instructions are opaque, the standard DOM has no API for the common case where the PI value is an attribute list.

   <?xml-stylesheet href="default.xsl"?>
 

In the above example,

getPIAttribute(node.getNodeValue(), "href")

would return "default.xsl".

Parameters:

pi - the value of the processing instruction

key - the attribute key

Returns:

the value corresponding to the attribute key.

getNext

public static org.w3c.dom.Node getNext(org.w3c.dom.Node node)

Get the next node in a depth first preorder traversal.

• If the node has a child, return the child
• Else if the node has a following sibling, return that sibling
• Else if the node has a following uncle, return that uncle

Parameters:

node - the current node

Returns:

the next node in the preorder traversal

getPrevious

public static org.w3c.dom.Node getPrevious(org.w3c.dom.Node node)

Get the previous node in a DFS preorder traversal

Parameters:

node - the current node

Returns:

the previous node in the preorder traversal

textValue

public static java.lang.String textValue(org.w3c.dom.Node node)

Extracts the text value from the node. Text nodes return their value and elements return the concatenation of the child values.

textValue

public static void textValue(CharBuffer cb,
                             org.w3c.dom.Node node)

Extracts the text value from the node. Text nodes return their value and elements return the concatenation of the child values.

isWhitespace

public static boolean isWhitespace(java.lang.String text)

Extracts the text value from the node. Text nodes return their value and elements return the concatenation of the child values.

toSAX

public static void toSAX(org.w3c.dom.Node node,
                         org.xml.sax.ContentHandler handler)
                  throws org.xml.sax.SAXException

Sends data to the helper.

Throws:

org.xml.sax.SAXException

getNamespace

public static java.lang.String getNamespace(org.w3c.dom.Node node,
                                            java.lang.String prefix)

Returns the namespace for the given prefix.