org.apache.cxf.aegis.util
Class NamespaceHelper

java.lang.Object
  org.apache.cxf.aegis.util.NamespaceHelper

public final class NamespaceHelper
extends Object

Namespace utilities.

getUniquePrefix

public static String getUniquePrefix(Element element,
                                     String namespaceURI)

Create a unique namespace uri/prefix combination.

Parameters:

nsUri -

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:

nsUri -

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

makePackageName

public static String makePackageName(String namespace)

Method makePackageName

Parameters:

namespace -

Returns:

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)