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/*
* Copyright 2001-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.axis.message;
import org.w3c.dom.Attr;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import java.util.Iterator;
import java.util.Vector;
/**
* A W3C simple DOM NameNodeMap implementation
*
* @author Heejune Ahn ([email protected])
*/
public class NamedNodeMapImpl implements NamedNodeMap {
/** Nodes. */
protected Vector nodes;
static private Document doc = null;
static{
try {
org.w3c.dom.Document doc = org.apache.axis.utils.XMLUtils.newDocument();
} catch (javax.xml.parsers.ParserConfigurationException e) {
throw new org.apache.axis.InternalException(e);
}
}
public NamedNodeMapImpl()
{
nodes = new Vector();
}
/**
* Retrieves a node specified by name.
* @param name The nodeName of a node to retrieve.
* @return A Node (of any type) with the specified
* nodeName, or null if it does not identify
* any node in this map.
*/
public Node getNamedItem(String name){
if(name == null ){
Thread.dumpStack();
throw new java.lang.IllegalArgumentException("local name = null");
}
for(Iterator iter = nodes.iterator(); iter.hasNext();){
Attr attr = (Attr)iter.next();
if(name.equals(attr.getName())){
return attr;
}
}
return null;
}
/**
* Adds a node using its nodeName attribute. If a node with
* that name is already present in this map, it is replaced by the new
* one.
* As the nodeName attribute is used to derive the name
* which the node must be stored under, multiple nodes of certain types
* (those that have a "special" string value) cannot be stored as the
* names would clash. This is seen as preferable to allowing nodes to be
* aliased.
* @param arg A node to store in this map. The node will later be
* accessible using the value of its nodeName attribute.
* @return If the new Node replaces an existing node the
* replaced Node is returned, otherwise null
* is returned.
* @exception DOMException
* WRONG_DOCUMENT_ERR: Raised if arg was created from a
* different document than the one that created this map.
* NO_MODIFICATION_ALLOWED_ERR: Raised if this map is readonly.
* INUSE_ATTRIBUTE_ERR: Raised if arg is an
* Attr that is already an attribute of another
* Element object. The DOM user must explicitly clone
* Attr nodes to re-use them in other elements.
* HIERARCHY_REQUEST_ERR: Raised if an attempt is made to add a node
* doesn't belong in this NamedNodeMap. Examples would include trying
* to insert something other than an Attr node into an Element's map
* of attributes, or a non-Entity node into the DocumentType's map of
* Entities.
*/
public Node setNamedItem(Node arg) throws DOMException
{
String name = arg.getNodeName();
if(name == null ){
Thread.dumpStack();
throw new java.lang.IllegalArgumentException("local name = null");
}
for(int i = 0; i < nodes.size(); i++){
Attr attr = (Attr)nodes.get(i);
// search if we have already
if(name.equals(attr.getName())){
nodes.remove(i);
nodes.add(i, arg);
return attr; // return old one
}
}
// if cannot found
nodes.add(arg);
return null;
}
/**
* Removes a node specified by name. When this map contains the attributes
* attached to an element, if the removed attribute is known to have a
* default value, an attribute immediately appears containing the
* default value as well as the corresponding namespace URI, local name,
* and prefix when applicable.
* @param name The nodeName of the node to remove.
* @return The node removed from this map if a node with such a name
* exists.
* @exception DOMException
* NOT_FOUND_ERR: Raised if there is no node named name in
* this map.
* NO_MODIFICATION_ALLOWED_ERR: Raised if this map is readonly.
*/
public Node removeNamedItem(String name) throws DOMException
{
if(name == null ){
Thread.dumpStack();
throw new java.lang.IllegalArgumentException("local name = null");
}
for(int i = 0; i < nodes.size(); i++){
Attr attr = (Attr)nodes.get(i);
// search if we have already
if(name.equals(attr.getLocalName())){
nodes.remove(i);
return attr; // return old one
}
}
return null;
}
/**
* Returns the indexth item in the map. If index
* is greater than or equal to the number of nodes in this map, this
* returns null.
* @param index Index into this map.
* @return The node at the indexth position in the map, or
* null if that is not a valid index.
*/
public Node item(int index){
return (nodes != null && index < nodes.size()) ?
(Node)(nodes.elementAt(index)) : null;
}
/**
* The number of nodes in this map. The range of valid child node indices
* is 0 to length-1 inclusive.
*/
public int getLength(){
return (nodes != null) ? nodes.size() : 0;
}
/**
* Retrieves a node specified by local name and namespace URI.
* Documents which do not support the "XML" feature will permit only
* the DOM Level 1 calls for creating/setting elements and attributes.
* Hence, if you specify a non-null namespace URI, these DOMs will never
* find a matching node.
* @param namespaceURI The namespace URI of the node to retrieve.
* @param localName The local name of the node to retrieve.
* @return A Node (of any type) with the specified local
* name and namespace URI, or null if they do not
* identify any node in this map.
* @since DOM Level 2
*/
public Node getNamedItemNS(String namespaceURI, String localName){
if(namespaceURI == null) namespaceURI = "";
if(localName == null ){
Thread.dumpStack();
throw new java.lang.IllegalArgumentException("local name = null");
}
for(Iterator iter = nodes.iterator(); iter.hasNext();){
Attr attr = (Attr)iter.next();
if(namespaceURI.equals(attr.getNamespaceURI()) &&
localName.equals(attr.getLocalName())){
return attr;
}
}
return null;
}
/**
* Adds a node using its namespaceURI and
* localName. If a node with that namespace URI and that
* local name is already present in this map, it is replaced by the new
* one.
* @param arg A node to store in this map. The node will later be
* accessible using the value of its namespaceURI and
* localName attributes.
* @return If the new Node replaces an existing node the
* replaced Node is returned, otherwise null
* is returned.
* @exception DOMException
* WRONG_DOCUMENT_ERR: Raised if arg was created from a
* different document than the one that created this map.
* NO_MODIFICATION_ALLOWED_ERR: Raised if this map is readonly.
* INUSE_ATTRIBUTE_ERR: Raised if arg is an
* Attr that is already an attribute of another
* Element object. The DOM user must explicitly clone
* Attr nodes to re-use them in other elements.
* HIERARCHY_REQUEST_ERR: Raised if an attempt is made to add a node
* doesn't belong in this NamedNodeMap. Examples would include trying
* to insert something other than an Attr node into an Element's map
* of attributes, or a non-Entity node into the DocumentType's map of
* Entities.
* NOT_SUPPORTED_ERR: Always thrown if the current document does not
* support the "XML" feature, since namespaces were
* defined by XML.
* @since DOM Level 2
*/
public Node setNamedItemNS(Node arg) throws DOMException
{
String namespaceURI = arg.getNamespaceURI();
String localName = arg.getLocalName();
if(namespaceURI == null) namespaceURI = "";
if(localName == null ){
Thread.dumpStack();
throw new java.lang.IllegalArgumentException("local name = null");
}
for(int i = 0; i < nodes.size(); i++){
Attr attr = (Attr)nodes.get(i);
// search if we have already
if(namespaceURI.equals(attr.getNamespaceURI()) &&
namespaceURI.equals(attr.getLocalName())){
nodes.remove(i);
nodes.add(i, arg);
return attr; // return old one
}
}
// if cannot found
nodes.add(arg);
return null;
}
/**
* Removes a node specified by local name and namespace URI. A removed
* attribute may be known to have a default value when this map contains
* the attributes attached to an element, as returned by the attributes
* attribute of the Node interface. If so, an attribute
* immediately appears containing the default value as well as the
* corresponding namespace URI, local name, and prefix when applicable.
* Documents which do not support the "XML" feature will permit only
* the DOM Level 1 calls for creating/setting elements and attributes.
* Hence, if you specify a non-null namespace URI, these DOMs will never
* find a matching node.
* @param namespaceURI The namespace URI of the node to remove.
* @param localName The local name of the node to remove.
* @return The node removed from this map if a node with such a local
* name and namespace URI exists.
* @exception DOMException
* NOT_FOUND_ERR: Raised if there is no node with the specified
* namespaceURI and localName in this map.
* NO_MODIFICATION_ALLOWED_ERR: Raised if this map is readonly.
* @since DOM Level 2
*/
public Node removeNamedItemNS(String namespaceURI, String localName) throws DOMException{
if(namespaceURI == null) namespaceURI = "";
if(localName == null ){
Thread.dumpStack();
throw new java.lang.IllegalArgumentException("local name = null");
}
for(int i = 0; i < nodes.size(); i++){
Attr attr = (Attr)nodes.get(i);
// search if we have already
if(namespaceURI.equals(attr.getNamespaceURI()) &&
localName.equals(attr.getLocalName())){
nodes.remove(i);
return attr; // return old one
}
}
return null;
}
}
