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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 23044] New: - No way to non-default namespace prefixes when creating MessageElements from DOM elements
Date Wed, 10 Sep 2003 00:25:44 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=23044

No way to non-default namespace prefixes when creating MessageElements from DOM elements

           Summary: No way to non-default namespace prefixes when creating
                    MessageElements from DOM elements
           Product: Axis
           Version: 1.1
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Minor
          Priority: Other
         Component: Serialization/Deserialization
        AssignedTo: axis-dev@ws.apache.org
        ReportedBy: mark.peskin@hp.com


I have noticed that there is no way to keep AXIS from using the default "ns#" 
namespace prefix when creating MessageElements (e.g. SOAP header elements) 
from DOM elements. This is because:

1) The prefix used in the DOM element is ignored by 
SerializationContextImpl.writeDOMElement(). It does not call 
registerPrefixForURI().

AND

2) MessageElement.setPrefix() is also ignored in this case. This is because, 
when the MessageElement has been constructed from DOM, 
MessageElement.outputImpl() short circuits immediately *before* getting to the 
line where registerPrefixForURI() is called based on the prefix value (line 
806 & 807 in MessageElement.java). Note that this could easily be fixed by 
moving lines 806-821 to the *beginning* of the MessageElement.outputImpl() 
method. i.e.:

    protected void outputImpl(SerializationContext context) throws Exception
    {
        if (prefix != null)
            context.registerPrefixForURI(prefix, namespaceURI);

        if (namespaces != null) {
            for (Iterator i = namespaces.iterator(); i.hasNext();) {
                Mapping mapping = (Mapping) i.next();
                context.registerPrefixForURI(mapping.getPrefix(), 
mapping.getNamespaceURI());
            }
        }            

        if (elementRep != null) {
            boolean oldPretty = context.getPretty();
            context.setPretty(false);
            context.writeDOMElement(elementRep);
            context.setPretty(oldPretty);
            return;
        }

        if (textRep != null) {
            boolean oldPretty = context.getPretty();
            context.setPretty(false);
            context.writeSafeString(textRep.getData());
            context.setPretty(oldPretty);
            return;
        }

        if (objectValue != null) {
            context.serialize(new QName(namespaceURI, name),
                              attributes,
                              objectValue, null, false, Boolean.TRUE);
            return;
        }

        context.startElement(new QName(namespaceURI, name), attributes);
        if (children != null) {
            for (Iterator it = children.iterator(); it.hasNext();) {
                ((MessageElement)it.next()).output(context);
            }
        }
        context.endElement();
    }

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