private static void writeStartElement()

in shared-libraries/servicemix-soap2/src/main/java/org/apache/servicemix/soap/util/stax/StaxUtil.java [199:307]
92 lines of code
20 McCabe index (conditional complexity)

    private static void writeStartElement(XMLStreamReader reader, XMLStreamWriter writer) 
        throws XMLStreamException
    {
        String local = reader.getLocalName();
        String uri = reader.getNamespaceURI();
        String prefix = reader.getPrefix();
        if (prefix == null)
        {
            prefix = "";
        }
        if (uri == null)
        {
            uri = "";
        }
        
        String boundPrefix = writer.getPrefix(uri);
        boolean writeElementNS = false;
        if ( boundPrefix == null || !prefix.equals(boundPrefix) )
        {   
            writeElementNS = true;
        }
        
        // Write out the element name
        if (uri != null)
        {
            if (prefix.length() == 0) 
            { 
                
                writer.writeStartElement(local);
                writer.setDefaultNamespace(uri); 
                
            } 
            else 
            { 
                writer.writeStartElement(prefix, local, uri); 
                writer.setPrefix(prefix, uri); 
            } 
        }
        else
        {
            writer.writeStartElement( local );
        }

        // Write out the namespaces
        for ( int i = 0; i < reader.getNamespaceCount(); i++ )
        {
            String nsURI = reader.getNamespaceURI(i);
            String nsPrefix = reader.getNamespacePrefix(i);
            if (nsPrefix == null) nsPrefix = "";
            
            if ( nsPrefix.length() ==  0 )
            {
                writer.writeDefaultNamespace(nsURI);
            }
            else
            {
                writer.writeNamespace(nsPrefix, nsURI);
            }

            if (nsURI.equals(uri) && nsPrefix.equals(prefix))
            {
                writeElementNS = false;
            }
        }
        
        // Check if the namespace still needs to be written.
        // We need this check because namespace writing works 
        // different on Woodstox and the RI.
        if (writeElementNS)
        {
            if ( prefix == null || prefix.length() ==  0 )
            {
                writer.writeDefaultNamespace(uri);
            }
            else
            {
                writer.writeNamespace(prefix, uri);
            }
        }

        // Write out attributes
        for ( int i = 0; i < reader.getAttributeCount(); i++ )
        {
            String ns = reader.getAttributeNamespace(i);
            String nsPrefix = reader.getAttributePrefix(i);
            if ( ns == null || ns.length() == 0 )
            {
                writer.writeAttribute(
                        reader.getAttributeLocalName(i),
                        reader.getAttributeValue(i));
            }
            else if (nsPrefix == null || nsPrefix.length() == 0)
            {
                writer.writeAttribute(
                    reader.getAttributeNamespace(i),
                    reader.getAttributeLocalName(i),
                    reader.getAttributeValue(i));
            }
            else
            {
                writer.writeAttribute(reader.getAttributePrefix(i),
                                      reader.getAttributeNamespace(i),
                                      reader.getAttributeLocalName(i),
                                      reader.getAttributeValue(i));
            }
            
            
        }
    }