Package org.apache.cxf.aegis.util

Class NamespaceHelper

java.lang.Object

org.apache.cxf.aegis.util.NamespaceHelper

public final class NamespaceHelper
extends Object

Namespace utilities.

Method Summary

Modifier and Type	Method	Description
static QName	createQName(NamespaceContext nc, String value)
static QName	createQName(Element e, String value, String defaultNamespace)
static String	getPrefix(Element element, String namespaceURI)
static void	getPrefixes(Element element, String namespaceURI, List<String> prefixes)
static String	getUniquePrefix(XMLStreamWriter writer, String namespaceURI, boolean declare)	Create a unique namespace uri/prefix combination.
static String	getUniquePrefix(XMLStreamWriter writer, String namespaceURI, String preferred, boolean declare)	Make a unique prefix.
static String	getUniquePrefix(Element element, String namespaceURI)	Create a unique namespace uri/prefix combination.
static String	makeNamespaceFromClassName(String className, String protocol)	Generates the name of a XML namespace from a given class name and protocol.
static QName	readQName(XMLStreamReader reader)	Reads a QName from the element text.

Methods inherited from class java.lang.Object

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

Method Detail

getUniquePrefix

public static String getUniquePrefix(Element element,
                                     String namespaceURI)

Create a unique namespace uri/prefix combination.

Parameters:

element -

namespaceURI - namespace

Returns:

The namespace with the specified URI. If one doesn't exist, one is created.

getPrefix

public static String getPrefix(Element element,
                               String namespaceURI)

getPrefixes

public static void getPrefixes(Element element,
                               String namespaceURI,
                               List<String> prefixes)

getUniquePrefix

public static String getUniquePrefix(XMLStreamWriter writer,
                                     String namespaceURI,
                                     boolean declare)
                              throws XMLStreamException

Create a unique namespace uri/prefix combination.

Parameters:

writer - target writer.

namespaceURI - namespace

declare - whether to declare to the stream.

Returns:

The namespace with the specified URI. If one doesn't exist, one is created.

Throws:

XMLStreamException

getUniquePrefix

public static String getUniquePrefix(XMLStreamWriter writer,
                                     String namespaceURI,
                                     String preferred,
                                     boolean declare)
                              throws XMLStreamException

Make a unique prefix.

Parameters:

writer - target writer.

namespaceURI - namespace

preferred - if there's a proposed prefix (e.g. xsi), here it is.

declare - whether to declare to the stream.

Returns:

the prefix.

Throws:

XMLStreamException

makeNamespaceFromClassName

public static String makeNamespaceFromClassName(String className,
                                                String protocol)

Generates the name of a XML namespace from a given class name and protocol. The returned namespace will take the form protocol://domain, where protocol is the given protocol, and domain the inversed package name of the given class name.

For instance, if the given class name is org.codehaus.xfire.services.Echo, and the protocol is http, the resulting namespace would be http://services.xfire.codehaus.org.

Parameters:

className - the class name

protocol - the protocol (eg. http)

Returns:

the namespace

readQName

public static QName readQName(XMLStreamReader reader)
                       throws XMLStreamException

Reads a QName from the element text. Reader must be positioned at the start tag.

Parameters:

reader -

Returns:

Throws:

XMLStreamException

createQName

public static QName createQName(NamespaceContext nc,
                                String value)

createQName

public static QName createQName(Element e,
                                String value,
                                String defaultNamespace)