package org.xmldb.xupdate.lexus.commands;
/*
* The XML:DB Initiative Software License, Version 1.0
*
*
* Copyright (c) 2000-2003 The XML:DB Initiative. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* XML:DB Initiative (http://www.xmldb.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The name "XML:DB Initiative" must not be used to endorse or
* promote products derived from this software without prior written
* permission. For written permission, please contact info@xmldb.org.
*
* 5. Products derived from this software may not be called "XML:DB",
* nor may "XML:DB" appear in their name, without prior written
* permission of the XML:DB Initiative.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the XML:DB Initiative. For more information
* on the XML:DB Initiative, please see <http://www.xmldb.org/>.
*/
import org.apache.xml.utils.PrefixResolver;
import org.apache.xml.utils.PrefixResolverDefault;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
*
* @version $Id: InsertAttribute.java,v 1.8 2003/05/21 08:17:38 jbreedveld Exp $
* @author <a href="http://www.smb-tec.com">SMB</a>
*/
public class InsertAttribute extends InsertStates {
/**
*
*/
public InsertAttribute() {
super();
}
/**
*
*/
public Node execute(Node contextNode) throws Exception {
if (contextNode.getNodeType() != Node.ELEMENT_NODE) {
throw new Exception("can not append attribute !");
}
String namespaceURI = (String) attributes.get("namespace");
String qName = (String) attributes.get("name");
String data = "";
// Solved "Append empty atrribute bug" by making data default ""
if (!characters.isEmpty()) {
data = (String) characters.firstElement();
}
Attr attribute;
if (namespaceURI != null && namespaceURI.equals("")) {
namespaceURI = null;
}
attribute = contextNode.getOwnerDocument().createAttributeNS(namespaceURI, qName);
attribute.setValue(data);
((Element) contextNode).setAttributeNodeNS(attribute);
// now check namespaceURI != null no longer qName.indexOf( ":" )>=0
if (namespaceURI != null) {
String prefix = attribute.getPrefix();
if (prefix == null) {
/**
* This is the default xmlns="namespace-uri" attribute case.
* Look for default xmlns="namespace-uri" attributes in parent elements
*/
if (!hasDefaultNamespace(contextNode, namespaceURI)) {
((Element) contextNode).setAttributeNS("http://www.w3.org/2000/xmlns/",
"xmlns", namespaceURI);
}
} else {
/**
* Look for existing namespace declaration with same prefix.
* If it exists a namespace declaration doesn't has to be added
* If it exists but the URI is not the same a namespace
* declaration has to be added
*
* Other prefixes with same URI are ignored. This is something to
* talk about on mailinglist and a to WD
*/
PrefixResolver prefixResolver = new PrefixResolverDefault(contextNode);
String uri = prefixResolver.getNamespaceForPrefix(prefix);
if (uri == null || !uri.equalsIgnoreCase(namespaceURI)) {
((Element) contextNode).setAttributeNS("http://www.w3.org/2000/xmlns/",
"xmlns:" + prefix, namespaceURI);
}
}
}
return attribute;
}
}