[Issue 10] New - DOMDocumentSerializer : namespace problem

[dmucha]

https://fi.dev.java.net/issues/show_bug.cgi?id=10
                 Issue #|10
                 Summary|DOMDocumentSerializer : namespace problem
               Component|fi
                 Version|current
                Platform|PC
              OS/Version|Windows XP
                     URL|
                  Status|NEW
       Status whiteboard|
                Keywords|
              Resolution|
              Issue type|DEFECT
                Priority|P1
            Subcomponent|www
             Assigned to|sandoz
             Reported by|dmucha






------- Additional comments from dmucha@... Mon Nov 27 14:24:52 +0000 2006 -------
I have a namespace problem with DOMDocumentSerializer : IOException: namespace
URI of local name not indexed
(found on Windows XP, probably an all platform all OS issue)

I thought the DOM Level 2 compliant way to create the following document is

/*
* <?xml version="1.0" encoding="UTF-8"?>
* <root xmlns="http://NewDefaultNamespaceURI.xxx.org">
* <ABC:e xmlns:ABC="http://www.xxx.org"/>
* </root>
*/

Document doc = db.newDocument();
Element root = doc.createElementNS("http://NewDefaultNamespaceURI.xxx.org", "root");
doc.appendChild(root);

Element e = doc.createElementNS("http://www.xxx.org", "ABC:e");
root.appendChild(e);

I can serialize this with com.sun.org.apache.xml.internal.serialize.XMLSerializer
and convert it to a string and everything is ok.

When I serialize it with com.sun.xml.fastinfoset.dom.DOMDocumentSerializer
into a fastinfoset document I get an IOException (complete unit test see below) :

java.io.IOException: namespace URI of local name not indexed:
http://NewDefaultNamespaceURI.xxx.org
at
com.sun.xml.fastinfoset.Encoder.encodeLiteralElementQualifiedNameOnThirdBit(Encoder.java:826)

So DOMDocumentSerializer shows a different behaviour than XMLSerializer with the
same document.


When I add the namespace additionally as an attribute via setAttributeNS
the call to com.sun.xml.fastinfoset.dom.DOMDocumentSerializer.serialize succeeds :

Document doc = db.newDocument();
Element root = doc.createElementNS("http://NewDefaultNamespaceURI.xxx.org", "root");
root.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns",
"http://NewDefaultNamespaceURI.xxx.org");
doc.appendChild(root);

Element e = doc.createElementNS("http://www.xxx.org", "ABC:e");
e.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:ABC",
"http://www.xxx.org");
root.appendChild(e);

It seems to me that DOMDocumentSerializer needs the namespace as an attribute
to do its task with DOM Level 2 elements.

The parser generates the additional attributes for the namespaces,
so the serializer works in a round trip environment.
Only if a program generated document is serialized the above problems occur.


In the forum I found a message addressing attributes and namespaces
http://forums.java.net/jive/thread.jspa?forumID=44&threadID=2585&messageID=36634#36634
> Paul Sandoz wrote :
> The DOM serializer is currently a bit dumb and does not declare namespaces.
> It is necessary for the namespace declarations to already be declared.


Dietrich




public void testDoNotIgnoreDOMSerializationNamespaceProblem() throws Exception {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();

/*
create the following document :

<?xml version="1.0" encoding="UTF-8"?>
<root xmlns="http://NewDefaultNamespaceURI.xxx.org">
<ABC:e xmlns:ABC="http://www.xxx.org"/>
</root>
*/
Document doc = db.newDocument();

Element root = doc.createElementNS("http://NewDefaultNamespaceURI.xxx.org", "root");
// --> setAttributeNS is needed for ds.serialize(doc) to succeed
root.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns",
"http://NewDefaultNamespaceURI.xxx.org");
doc.appendChild(root);

Element e = doc.createElementNS("http://www.xxx.org", "ABC:e");
// --> setAttributeNS is needed for ds.serialize(doc) to succeed
e.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:ABC",
"http://www.xxx.org");
root.appendChild(e);

DOMDocumentSerializer ds = new DOMDocumentSerializer();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ds.setOutputStream(baos);

ds.setIgnoreComments(false);
ds.setIgnoreProcesingInstructions(false);
ds.setIgnoreWhiteSpaceTextContent(false);

ds.serialize(doc);

Document docOut = db.newDocument();
DOMDocumentParser parser = new DOMDocumentParser();
ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
parser.parse(docOut, bais);
}

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