Example usage for javax.xml.stream XMLStreamWriter writeDefaultNamespace

List of usage examples for javax.xml.stream XMLStreamWriter writeDefaultNamespace

Introduction

In this page you can find the example usage for javax.xml.stream XMLStreamWriter writeDefaultNamespace.

Prototype

public void writeDefaultNamespace(String namespaceURI) throws XMLStreamException;

Source Link

Document

Writes the default namespace to the stream

Usage

From source file:org.gaul.s3proxy.S3ProxyHandler.java

private void handleContainerLocation(HttpServletResponse response, BlobStore blobStore, String containerName)
        throws IOException {
    try (Writer writer = response.getWriter()) {
        XMLStreamWriter xml = xmlOutputFactory.createXMLStreamWriter(writer);
        xml.writeStartDocument();/* w  ww  .j  av  a2s  .  c  om*/
        // TODO: using us-standard semantics but could emit actual location
        xml.writeStartElement("LocationConstraint");
        xml.writeDefaultNamespace(AWS_XMLNS);
        xml.writeEndElement();
        xml.flush();
    } catch (XMLStreamException xse) {
        throw new IOException(xse);
    }
}

From source file:ca.uhn.fhir.parser.XmlParser.java

private void encodeXhtml(XhtmlDt theDt, XMLStreamWriter theEventWriter) throws XMLStreamException {
    if (theDt == null || theDt.getValue() == null) {
        return;//w  ww . j  a va  2 s.c om
    }

    boolean firstElement = true;
    for (XMLEvent event : theDt.getValue()) {
        switch (event.getEventType()) {
        case XMLStreamConstants.ATTRIBUTE:
            Attribute attr = (Attribute) event;
            if (isBlank(attr.getName().getPrefix())) {
                if (isBlank(attr.getName().getNamespaceURI())) {
                    theEventWriter.writeAttribute(attr.getName().getLocalPart(), attr.getValue());
                } else {
                    theEventWriter.writeAttribute(attr.getName().getNamespaceURI(),
                            attr.getName().getLocalPart(), attr.getValue());
                }
            } else {
                theEventWriter.writeAttribute(attr.getName().getPrefix(), attr.getName().getNamespaceURI(),
                        attr.getName().getLocalPart(), attr.getValue());
            }

            break;
        case XMLStreamConstants.CDATA:
            theEventWriter.writeCData(((Characters) event).getData());
            break;
        case XMLStreamConstants.CHARACTERS:
        case XMLStreamConstants.SPACE:
            String data = ((Characters) event).getData();
            theEventWriter.writeCharacters(data);
            break;
        case XMLStreamConstants.COMMENT:
            theEventWriter.writeComment(((Comment) event).getText());
            break;
        case XMLStreamConstants.END_ELEMENT:
            theEventWriter.writeEndElement();
            break;
        case XMLStreamConstants.ENTITY_REFERENCE:
            EntityReference er = (EntityReference) event;
            theEventWriter.writeEntityRef(er.getName());
            break;
        case XMLStreamConstants.NAMESPACE:
            Namespace ns = (Namespace) event;
            theEventWriter.writeNamespace(ns.getPrefix(), ns.getNamespaceURI());
            break;
        case XMLStreamConstants.START_ELEMENT:
            StartElement se = event.asStartElement();
            if (firstElement) {
                if (StringUtils.isBlank(se.getName().getPrefix())) {
                    String namespaceURI = se.getName().getNamespaceURI();
                    if (StringUtils.isBlank(namespaceURI)) {
                        namespaceURI = "http://www.w3.org/1999/xhtml";
                    }
                    theEventWriter.writeStartElement(se.getName().getLocalPart());
                    theEventWriter.writeDefaultNamespace(namespaceURI);
                } else {
                    String prefix = se.getName().getPrefix();
                    String namespaceURI = se.getName().getNamespaceURI();
                    theEventWriter.writeStartElement(prefix, se.getName().getLocalPart(), namespaceURI);
                    theEventWriter.writeNamespace(prefix, namespaceURI);
                }
                firstElement = false;
            } else {
                if (isBlank(se.getName().getPrefix())) {
                    if (isBlank(se.getName().getNamespaceURI())) {
                        theEventWriter.writeStartElement(se.getName().getLocalPart());
                    } else {
                        if (StringUtils.isBlank(se.getName().getPrefix())) {
                            theEventWriter.writeStartElement(se.getName().getLocalPart());
                            // theEventWriter.writeDefaultNamespace(se.getName().getNamespaceURI());
                        } else {
                            theEventWriter.writeStartElement(se.getName().getNamespaceURI(),
                                    se.getName().getLocalPart());
                        }
                    }
                } else {
                    theEventWriter.writeStartElement(se.getName().getPrefix(), se.getName().getLocalPart(),
                            se.getName().getNamespaceURI());
                }
                for (Iterator<?> attrIter = se.getAttributes(); attrIter.hasNext();) {
                    Attribute next = (Attribute) attrIter.next();
                    theEventWriter.writeAttribute(next.getName().getLocalPart(), next.getValue());
                }
            }
            break;
        case XMLStreamConstants.DTD:
        case XMLStreamConstants.END_DOCUMENT:
        case XMLStreamConstants.ENTITY_DECLARATION:
        case XMLStreamConstants.NOTATION_DECLARATION:
        case XMLStreamConstants.PROCESSING_INSTRUCTION:
        case XMLStreamConstants.START_DOCUMENT:
            break;
        }

    }
}

From source file:org.activiti.bpmn.converter.export.DefinitionsRootExport.java

@SuppressWarnings("unchecked")
public static void writeRootElement(BpmnModel model, XMLStreamWriter xtw, String encoding) throws Exception {
    xtw.writeStartDocument(encoding, "1.0");

    // start definitions root element
    xtw.writeStartElement(ELEMENT_DEFINITIONS);
    xtw.setDefaultNamespace(BPMN2_NAMESPACE);
    xtw.writeDefaultNamespace(BPMN2_NAMESPACE);
    xtw.writeNamespace(XSI_PREFIX, XSI_NAMESPACE);
    xtw.writeNamespace(XSD_PREFIX, SCHEMA_NAMESPACE);
    xtw.writeNamespace(ACTIVITI_EXTENSIONS_PREFIX, ACTIVITI_EXTENSIONS_NAMESPACE);
    xtw.writeNamespace(BPMNDI_PREFIX, BPMNDI_NAMESPACE);
    xtw.writeNamespace(OMGDC_PREFIX, OMGDC_NAMESPACE);
    xtw.writeNamespace(OMGDI_PREFIX, OMGDI_NAMESPACE);
    for (String prefix : model.getNamespaces().keySet()) {
        if (!defaultNamespaces.contains(prefix) && StringUtils.isNotEmpty(prefix))
            xtw.writeNamespace(prefix, model.getNamespaces().get(prefix));
    }/*from   w  w  w  . j av a2 s . c  o m*/
    xtw.writeAttribute(TYPE_LANGUAGE_ATTRIBUTE, SCHEMA_NAMESPACE);
    xtw.writeAttribute(EXPRESSION_LANGUAGE_ATTRIBUTE, XPATH_NAMESPACE);
    if (StringUtils.isNotEmpty(model.getTargetNamespace())) {
        xtw.writeAttribute(TARGET_NAMESPACE_ATTRIBUTE, model.getTargetNamespace());
    } else {
        xtw.writeAttribute(TARGET_NAMESPACE_ATTRIBUTE, PROCESS_NAMESPACE);
    }

    BpmnXMLUtil.writeCustomAttributes(model.getDefinitionsAttributes().values(), xtw, model.getNamespaces(),
            defaultAttributes);
}

From source file:org.activiti.dmn.xml.converter.DmnXMLConverter.java

public byte[] convertToXML(DmnDefinition model, String encoding) {
    try {//  w w  w  .ja v  a  2 s. co  m

        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();

        XMLOutputFactory xof = XMLOutputFactory.newInstance();
        OutputStreamWriter out = new OutputStreamWriter(outputStream, encoding);

        XMLStreamWriter writer = xof.createXMLStreamWriter(out);
        XMLStreamWriter xtw = new IndentingXMLStreamWriter(writer);

        xtw.writeStartElement(ELEMENT_DEFINITIONS);
        xtw.writeDefaultNamespace(DMN_NAMESPACE);
        xtw.writeAttribute(ATTRIBUTE_ID, model.getId());
        if (StringUtils.isNotEmpty(model.getName())) {
            xtw.writeAttribute(ATTRIBUTE_NAME, model.getName());
        }
        xtw.writeAttribute(ATTRIBUTE_NAMESPACE, MODEL_NAMESPACE);

        DmnXMLUtil.writeElementDescription(model, xtw);
        DmnXMLUtil.writeExtensionElements(model, xtw);

        for (ItemDefinition itemDefinition : model.getItemDefinitions()) {
            xtw.writeStartElement(ELEMENT_ITEM_DEFINITION);
            xtw.writeAttribute(ATTRIBUTE_ID, itemDefinition.getId());
            if (StringUtils.isNotEmpty(itemDefinition.getName())) {
                xtw.writeAttribute(ATTRIBUTE_NAME, itemDefinition.getName());
            }

            DmnXMLUtil.writeElementDescription(itemDefinition, xtw);
            DmnXMLUtil.writeExtensionElements(itemDefinition, xtw);

            xtw.writeStartElement(ELEMENT_TYPE_DEFINITION);
            xtw.writeCharacters(itemDefinition.getTypeDefinition());
            xtw.writeEndElement();

            xtw.writeEndElement();
        }

        for (Decision decision : model.getDrgElements()) {
            xtw.writeStartElement(ELEMENT_DECISION);
            xtw.writeAttribute(ATTRIBUTE_ID, decision.getId());
            if (StringUtils.isNotEmpty(decision.getName())) {
                xtw.writeAttribute(ATTRIBUTE_NAME, decision.getName());
            }

            DmnXMLUtil.writeElementDescription(decision, xtw);
            DmnXMLUtil.writeExtensionElements(decision, xtw);

            DecisionTable decisionTable = decision.getDecisionTable();
            xtw.writeStartElement(ELEMENT_DECISION_TABLE);
            xtw.writeAttribute(ATTRIBUTE_ID, decisionTable.getId());

            if (decisionTable.getHitPolicy() != null) {
                xtw.writeAttribute(ATTRIBUTE_HIT_POLICY, decisionTable.getHitPolicy().toString());
            }

            DmnXMLUtil.writeElementDescription(decisionTable, xtw);
            DmnXMLUtil.writeExtensionElements(decisionTable, xtw);

            for (InputClause clause : decisionTable.getInputs()) {
                xtw.writeStartElement(ELEMENT_INPUT_CLAUSE);
                if (StringUtils.isNotEmpty(clause.getId())) {
                    xtw.writeAttribute(ATTRIBUTE_ID, clause.getId());
                }
                if (StringUtils.isNotEmpty(clause.getLabel())) {
                    xtw.writeAttribute(ATTRIBUTE_LABEL, clause.getLabel());
                }

                DmnXMLUtil.writeElementDescription(clause, xtw);
                DmnXMLUtil.writeExtensionElements(clause, xtw);

                if (clause.getInputExpression() != null) {
                    xtw.writeStartElement(ELEMENT_INPUT_EXPRESSION);
                    xtw.writeAttribute(ATTRIBUTE_ID, clause.getInputExpression().getId());

                    if (StringUtils.isNotEmpty(clause.getInputExpression().getTypeRef())) {
                        xtw.writeAttribute(ATTRIBUTE_TYPE_REF, clause.getInputExpression().getTypeRef());
                    }

                    if (StringUtils.isNotEmpty(clause.getInputExpression().getText())) {
                        xtw.writeStartElement(ELEMENT_TEXT);
                        xtw.writeCharacters(clause.getInputExpression().getText());
                        xtw.writeEndElement();
                    }

                    xtw.writeEndElement();
                }

                xtw.writeEndElement();
            }

            for (OutputClause clause : decisionTable.getOutputs()) {
                xtw.writeStartElement(ELEMENT_OUTPUT_CLAUSE);
                if (StringUtils.isNotEmpty(clause.getId())) {
                    xtw.writeAttribute(ATTRIBUTE_ID, clause.getId());
                }
                if (StringUtils.isNotEmpty(clause.getLabel())) {
                    xtw.writeAttribute(ATTRIBUTE_LABEL, clause.getLabel());
                }
                if (StringUtils.isNotEmpty(clause.getName())) {
                    xtw.writeAttribute(ATTRIBUTE_NAME, clause.getName());
                }
                if (StringUtils.isNotEmpty(clause.getTypeRef())) {
                    xtw.writeAttribute(ATTRIBUTE_TYPE_REF, clause.getTypeRef());
                }

                DmnXMLUtil.writeElementDescription(clause, xtw);
                DmnXMLUtil.writeExtensionElements(clause, xtw);

                xtw.writeEndElement();
            }

            for (DecisionRule rule : decisionTable.getRules()) {
                xtw.writeStartElement(ELEMENT_RULE);
                if (StringUtils.isNotEmpty(rule.getId())) {
                    xtw.writeAttribute(ATTRIBUTE_ID, rule.getId());
                }

                DmnXMLUtil.writeElementDescription(rule, xtw);
                DmnXMLUtil.writeExtensionElements(rule, xtw);

                for (RuleInputClauseContainer container : rule.getInputEntries()) {
                    xtw.writeStartElement(ELEMENT_INPUT_ENTRY);
                    xtw.writeAttribute(ATTRIBUTE_ID, container.getInputEntry().getId());

                    xtw.writeStartElement(ELEMENT_TEXT);
                    xtw.writeCharacters(container.getInputEntry().getText());
                    xtw.writeEndElement();

                    xtw.writeEndElement();
                }

                for (RuleOutputClauseContainer container : rule.getOutputEntries()) {
                    xtw.writeStartElement(ELEMENT_OUTPUT_ENTRY);
                    xtw.writeAttribute(ATTRIBUTE_ID, container.getOutputEntry().getId());

                    xtw.writeStartElement(ELEMENT_TEXT);
                    xtw.writeCharacters(container.getOutputEntry().getText());
                    xtw.writeEndElement();

                    xtw.writeEndElement();
                }

                xtw.writeEndElement();
            }

            xtw.writeEndElement();

            xtw.writeEndElement();
        }

        // end definitions root element
        xtw.writeEndElement();
        xtw.writeEndDocument();

        xtw.flush();

        outputStream.close();

        xtw.close();

        return outputStream.toByteArray();

    } catch (Exception e) {
        LOGGER.error("Error writing BPMN XML", e);
        throw new DmnXMLException("Error writing BPMN XML", e);
    }
}

From source file:org.apache.axiom.om.impl.serialize.StreamingOMSerializer.java

/**
 * @param reader//from   ww w .jav  a 2s  .c  om
 * @param writer
 * @throws XMLStreamException
 */
protected void serializeElement(XMLStreamReader reader, XMLStreamWriter writer) throws XMLStreamException {

    // Note: To serialize the start tag, we must follow the order dictated by the JSR-173 (StAX) specification.
    // Please keep this code in sync with the code in OMSerializerUtil.serializeStartpart

    // The algorithm is:
    // ... generate writeStartElement
    //
    // ... generate setPrefix/setDefaultNamespace for each namespace declaration if the prefix is unassociated.
    // ... generate setPrefix/setDefaultNamespace if the prefix of the element is unassociated
    // ... generate setPrefix/setDefaultNamespace for each unassociated prefix of the attributes.
    //
    // ... generate writeNamespace/writerDefaultNamespace for the new namespace declarations determine during the "set" processing
    // ... generate writeAttribute for each attribute

    ArrayList writePrefixList = null;
    ArrayList writeNSList = null;

    // Get the prefix and namespace of the element.  "" and null are identical.
    String ePrefix = reader.getPrefix();
    ePrefix = (ePrefix != null && ePrefix.length() == 0) ? null : ePrefix;
    String eNamespace = reader.getNamespaceURI();
    eNamespace = (eNamespace != null && eNamespace.length() == 0) ? null : eNamespace;

    // Write the startElement if required
    if (eNamespace != null) {
        if (ePrefix == null) {
            if (!OMSerializerUtil.isAssociated("", eNamespace, writer)) {

                if (writePrefixList == null) {
                    writePrefixList = new ArrayList();
                    writeNSList = new ArrayList();
                }
                writePrefixList.add("");
                writeNSList.add(eNamespace);
            }

            writer.writeStartElement("", reader.getLocalName(), eNamespace);
        } else {

            if (!OMSerializerUtil.isAssociated(ePrefix, eNamespace, writer)) {
                if (writePrefixList == null) {
                    writePrefixList = new ArrayList();
                    writeNSList = new ArrayList();
                }
                writePrefixList.add(ePrefix);
                writeNSList.add(eNamespace);
            }

            writer.writeStartElement(ePrefix, reader.getLocalName(), eNamespace);
        }
    } else {
        writer.writeStartElement(reader.getLocalName());
    }

    // Generate setPrefix for the namespace declarations
    int count = reader.getNamespaceCount();
    for (int i = 0; i < count; i++) {
        String prefix = reader.getNamespacePrefix(i);
        prefix = (prefix != null && prefix.length() == 0) ? null : prefix;
        String namespace = reader.getNamespaceURI(i);
        namespace = (namespace != null && namespace.length() == 0) ? null : namespace;

        String newPrefix = OMSerializerUtil.generateSetPrefix(prefix, namespace, writer, false);
        // If this is a new association, remember it so that it can written out later
        if (newPrefix != null) {
            if (writePrefixList == null) {
                writePrefixList = new ArrayList();
                writeNSList = new ArrayList();
            }
            if (!writePrefixList.contains(newPrefix)) {
                writePrefixList.add(newPrefix);
                writeNSList.add(namespace);
            }
        }
    }

    // Generate setPrefix for the element
    // If the prefix is not associated with a namespace yet, remember it so that we can
    // write out a namespace declaration
    String newPrefix = OMSerializerUtil.generateSetPrefix(ePrefix, eNamespace, writer, false);
    // If this is a new association, remember it so that it can written out later
    if (newPrefix != null) {
        if (writePrefixList == null) {
            writePrefixList = new ArrayList();
            writeNSList = new ArrayList();
        }
        if (!writePrefixList.contains(newPrefix)) {
            writePrefixList.add(newPrefix);
            writeNSList.add(eNamespace);
        }
    }

    // Now Generate setPrefix for each attribute
    count = reader.getAttributeCount();
    for (int i = 0; i < count; i++) {
        String prefix = reader.getAttributePrefix(i);
        prefix = (prefix != null && prefix.length() == 0) ? null : prefix;
        String namespace = reader.getAttributeNamespace(i);
        namespace = (namespace != null && namespace.length() == 0) ? null : namespace;

        // Default prefix referencing is not allowed on an attribute
        if (prefix == null && namespace != null) {
            String writerPrefix = writer.getPrefix(namespace);
            writerPrefix = (writerPrefix != null && writerPrefix.length() == 0) ? null : writerPrefix;
            prefix = (writerPrefix != null) ? writerPrefix : generateUniquePrefix(writer.getNamespaceContext());
        }
        newPrefix = OMSerializerUtil.generateSetPrefix(prefix, namespace, writer, true);
        // If the prefix is not associated with a namespace yet, remember it so that we can
        // write out a namespace declaration
        if (newPrefix != null) {
            if (writePrefixList == null) {
                writePrefixList = new ArrayList();
                writeNSList = new ArrayList();
            }
            if (!writePrefixList.contains(newPrefix)) {
                writePrefixList.add(newPrefix);
                writeNSList.add(namespace);
            }
        }
    }

    // Now Generate setPrefix for each prefix referenced in an xsi:type
    // For example xsi:type="p:dataType"
    // The following code will make sure that setPrefix is called for "p".
    count = reader.getAttributeCount();
    for (int i = 0; i < count; i++) {
        String prefix = reader.getAttributePrefix(i);
        prefix = (prefix != null && prefix.length() == 0) ? null : prefix;
        String namespace = reader.getAttributeNamespace(i);
        namespace = (namespace != null && namespace.length() == 0) ? null : namespace;
        String localName = reader.getAttributeLocalName(i);

        if (XSI_URI.equals(namespace) && XSI_LOCAL_NAME.equals(localName)) {
            String value = reader.getAttributeValue(i);
            if (DEBUG_ENABLED) {
                log.debug("The value of xsi:type is " + value);
            }
            if (value != null) {
                value = value.trim();
                if (value.indexOf(":") > 0) {
                    String refPrefix = value.substring(0, value.indexOf(":"));
                    String refNamespace = reader.getNamespaceURI(refPrefix);
                    if (refNamespace != null && refNamespace.length() > 0) {

                        newPrefix = OMSerializerUtil.generateSetPrefix(refPrefix, refNamespace, writer, true);
                        // If the prefix is not associated with a namespace yet, remember it so that we can
                        // write out a namespace declaration
                        if (newPrefix != null) {
                            if (DEBUG_ENABLED) {
                                log.debug(
                                        "An xmlns:" + newPrefix + "=\"" + refNamespace + "\" will be written");
                            }
                            if (writePrefixList == null) {
                                writePrefixList = new ArrayList();
                                writeNSList = new ArrayList();
                            }
                            if (!writePrefixList.contains(newPrefix)) {
                                writePrefixList.add(newPrefix);
                                writeNSList.add(refNamespace);
                            }
                        }
                    }

                }
            }
        }
    }

    // Now write out the list of namespace declarations in this list that we constructed
    // while doing the "set" processing.
    if (writePrefixList != null) {
        for (int i = 0; i < writePrefixList.size(); i++) {
            String prefix = (String) writePrefixList.get(i);
            String namespace = (String) writeNSList.get(i);
            if (prefix != null) {
                if (namespace == null) {
                    writer.writeNamespace(prefix, "");
                } else {
                    writer.writeNamespace(prefix, namespace);
                }
            } else {
                writer.writeDefaultNamespace(namespace);
            }
        }
    }

    // Now write the attributes
    count = reader.getAttributeCount();
    for (int i = 0; i < count; i++) {
        String prefix = reader.getAttributePrefix(i);
        prefix = (prefix != null && prefix.length() == 0) ? null : prefix;
        String namespace = reader.getAttributeNamespace(i);
        namespace = (namespace != null && namespace.length() == 0) ? null : namespace;

        if (prefix == null && namespace != null) {
            // Default namespaces are not allowed on an attribute reference.
            // Earlier in this code, a unique prefix was added for this case...now obtain and use it
            prefix = writer.getPrefix(namespace);
            //XMLStreamWriter doesn't allow for getPrefix to know whether you're asking for the prefix
            //for an attribute or an element. So if the namespace matches the default namespace getPrefix will return
            //the empty string, as if it were an element, in all cases (even for attributes, and even if 
            //there was a prefix specifically set up for this), which is not the desired behavior.
            //Since the interface is base java, we can't fix it where we need to (by adding an attr boolean to 
            //XMLStreamWriter.getPrefix), so we hack it in here...
            if (prefix == null || "".equals(prefix)) {
                for (int j = 0; j < writePrefixList.size(); j++) {
                    if (namespace.equals((String) writeNSList.get(j))) {
                        prefix = (String) writePrefixList.get(j);
                    }
                }
            }
        } else if (namespace != null && !prefix.equals("xml")) {
            // Use the writer's prefix if it is different, but if the writers 
            // prefix is empty then do not replace because attributes do not
            // default to the default namespace like elements do.
            String writerPrefix = writer.getPrefix(namespace);
            if (!prefix.equals(writerPrefix) && !"".equals(writerPrefix)) {
                prefix = writerPrefix;
            }
        }
        if (namespace != null) {
            // Qualified attribute
            writer.writeAttribute(prefix, namespace, reader.getAttributeLocalName(i),
                    reader.getAttributeValue(i));
        } else {
            // Unqualified attribute
            writer.writeAttribute(reader.getAttributeLocalName(i), reader.getAttributeValue(i));
        }
    }
}

From source file:org.apache.axiom.om.impl.util.OMSerializerUtil.java

/**
 * Method serializeNamespace./*ww  w .j a  v a  2s  .  c  o  m*/
 *
 * @param namespace
 * @param writer
 * @throws XMLStreamException
 * @deprecated Use serializeStartpart instead
 */
public static void serializeNamespace(OMNamespace namespace, XMLStreamWriter writer) throws XMLStreamException {
    if (namespace == null) {
        return;
    }
    String uri = namespace.getNamespaceURI();
    String prefix = namespace.getPrefix();

    if (uri != null && !"".equals(uri)) {
        String prefixFromWriter = writer.getPrefix(uri);

        // Handling Default Namespaces First
        // Case 1 :
        //        here we are trying define a default namespace. But has this been defined in the current context.
        //        yes, there can be a default namespace, but it may have a different URI. If its a different URI
        //        then explicitly define the default namespace here.
        // Case 2 :
        //        The passed in namespace is a default ns, but there is a non-default ns declared
        //        in the current scope.
        if (("".equals(prefix) && "".equals(prefixFromWriter)
                && !uri.equals(writer.getNamespaceContext().getNamespaceURI("")))
                || (prefix != null && "".equals(prefix)
                        && (prefixFromWriter == null || !prefix.equals(prefixFromWriter)))) {
            // this has not been declared earlier
            writer.writeDefaultNamespace(uri);
            writer.setDefaultNamespace(uri);
        } else {
            prefix = prefix == null ? getNextNSPrefix(writer) : prefix;
            if (prefix != null && !prefix.equals(prefixFromWriter)
                    && !checkForPrefixInTheCurrentContext(writer, uri, prefix)) {
                writer.writeNamespace(prefix, uri);
                writer.setPrefix(prefix, uri);
            }
        }
    } else {
        // now the nsURI passed is "" or null. Meaning we gonna work with defaultNS.
        // check whether there is a defaultNS already declared. If yes, is it the same as this ?
        String currentDefaultNSURI = writer.getNamespaceContext().getNamespaceURI("");
        if ((currentDefaultNSURI != null && !currentDefaultNSURI.equals(uri))
                || uri != null && !uri.equals(currentDefaultNSURI)) {
            // this has not been declared earlier
            writer.writeDefaultNamespace(uri);
            writer.setDefaultNamespace(uri);
        }
    }
}

From source file:org.apache.axiom.om.impl.util.OMSerializerUtil.java

/**
 * Method serializeStartpart. Serialize the start tag of an element.
 *
 * @param element//  www  .  j  av  a2  s . c  o  m
 * @param localName (in some cases, the caller wants to force a different localName)
 * @param writer
 * @throws XMLStreamException
 */
public static void serializeStartpart(OMElement element, String localName, XMLStreamWriter writer)
        throws XMLStreamException {

    // Note: To serialize the start tag, we must follow the order dictated by the JSR-173 (StAX) specification.
    // Please keep this code in sync with the code in StreamingOMSerializer.serializeElement

    // The algorithm is:
    // ... generate writeStartElement
    //
    // ... generate setPrefix/setDefaultNamespace for each namespace declaration if the prefix is unassociated.
    // ... generate setPrefix/setDefaultNamespace if the prefix of the element is unassociated
    // ... generate setPrefix/setDefaultNamespace for each unassociated prefix of the attributes.
    //
    // ... generate writeNamespace/writerDefaultNamespace for the new namespace declarations determine during the "set" processing
    // ... generate writeAttribute for each attribute

    ArrayList writePrefixList = null;
    ArrayList writeNSList = null;

    // Get the namespace and prefix of the element
    OMNamespace eOMNamespace = element.getNamespace();
    String ePrefix = null;
    String eNamespace = null;
    if (eOMNamespace != null) {
        ePrefix = eOMNamespace.getPrefix();
        eNamespace = eOMNamespace.getNamespaceURI();
    }
    ePrefix = (ePrefix != null && ePrefix.length() == 0) ? null : ePrefix;
    eNamespace = (eNamespace != null && eNamespace.length() == 0) ? null : eNamespace;

    if (eNamespace != null) {
        if (ePrefix == null) {
            if (!isAssociated("", eNamespace, writer)) {
                if (writePrefixList == null) {
                    writePrefixList = new ArrayList();
                    writeNSList = new ArrayList();
                }
                if (!writePrefixList.contains("")) {
                    writePrefixList.add("");
                    writeNSList.add(eNamespace);
                }
            }
            writer.writeStartElement("", localName, eNamespace);
        } else {
            /*
             * If XMLStreamWriter.writeStartElement(prefix,localName,namespaceURI) associates
             * the prefix with the namespace .. 
             */
            if (!isAssociated(ePrefix, eNamespace, writer)) {
                if (writePrefixList == null) {
                    writePrefixList = new ArrayList();
                    writeNSList = new ArrayList();
                }
                if (!writePrefixList.contains(ePrefix)) {
                    writePrefixList.add(ePrefix);
                    writeNSList.add(eNamespace);
                }
            }

            writer.writeStartElement(ePrefix, localName, eNamespace);
        }
    } else {
        writer.writeStartElement(localName);
    }

    // Generate setPrefix for the namespace declarations
    Iterator it = element.getAllDeclaredNamespaces();
    while (it != null && it.hasNext()) {
        OMNamespace omNamespace = (OMNamespace) it.next();
        String prefix = null;
        String namespace = null;
        if (omNamespace != null) {
            prefix = omNamespace.getPrefix();
            namespace = omNamespace.getNamespaceURI();
        }
        prefix = (prefix != null && prefix.length() == 0) ? null : prefix;
        namespace = (namespace != null && namespace.length() == 0) ? null : namespace;

        String newPrefix = generateSetPrefix(prefix, namespace, writer, false);
        // If this is a new association, remember it so that it can written out later
        if (newPrefix != null) {
            if (writePrefixList == null) {
                writePrefixList = new ArrayList();
                writeNSList = new ArrayList();
            }
            if (!writePrefixList.contains(newPrefix)) {
                writePrefixList.add(newPrefix);
                writeNSList.add(namespace);
            }
        }
    }

    // Generate setPrefix for the element
    // Get the prefix and namespace of the element.  "" and null are identical.
    String newPrefix = generateSetPrefix(ePrefix, eNamespace, writer, false);
    // If this is a new association, remember it so that it can written out later
    if (newPrefix != null) {
        if (writePrefixList == null) {
            writePrefixList = new ArrayList();
            writeNSList = new ArrayList();
        }
        if (!writePrefixList.contains(newPrefix)) {
            writePrefixList.add(newPrefix);
            writeNSList.add(eNamespace);
        }
    }

    // Now Generate setPrefix for each attribute
    Iterator attrs = element.getAllAttributes();
    while (attrs != null && attrs.hasNext()) {
        OMAttribute attr = (OMAttribute) attrs.next();
        OMNamespace omNamespace = attr.getNamespace();
        String prefix = null;
        String namespace = null;
        if (omNamespace != null) {
            prefix = omNamespace.getPrefix();
            namespace = omNamespace.getNamespaceURI();
        }
        prefix = (prefix != null && prefix.length() == 0) ? null : prefix;
        namespace = (namespace != null && namespace.length() == 0) ? null : namespace;

        // Default prefix referencing is not allowed on an attribute
        if (prefix == null && namespace != null) {
            String writerPrefix = writer.getPrefix(namespace);
            writerPrefix = (writerPrefix != null && writerPrefix.length() == 0) ? null : writerPrefix;
            prefix = (writerPrefix != null) ? writerPrefix : getNextNSPrefix();
        }
        newPrefix = generateSetPrefix(prefix, namespace, writer, true);
        // If the prefix is not associated with a namespace yet, remember it so that we can
        // write out a namespace declaration
        if (newPrefix != null) {
            if (writePrefixList == null) {
                writePrefixList = new ArrayList();
                writeNSList = new ArrayList();
            }
            if (!writePrefixList.contains(newPrefix)) {
                writePrefixList.add(newPrefix);
                writeNSList.add(namespace);
            }
        }
    }

    // Now Generate setPrefix for each prefix referenced in an xsi:type
    // For example xsi:type="p:dataType"
    // The following code will make sure that setPrefix is called for "p".
    attrs = element.getAllAttributes();
    while (attrs != null && attrs.hasNext()) {
        OMAttribute attr = (OMAttribute) attrs.next();
        OMNamespace omNamespace = attr.getNamespace();
        String prefix = null;
        String namespace = null;
        if (omNamespace != null) {
            prefix = omNamespace.getPrefix();
            namespace = omNamespace.getNamespaceURI();
        }
        prefix = (prefix != null && prefix.length() == 0) ? null : prefix;
        namespace = (namespace != null && namespace.length() == 0) ? null : namespace;
        String local = attr.getLocalName();

        if (XSI_URI.equals(namespace) && XSI_LOCAL_NAME.equals(local)) {
            String value = attr.getAttributeValue();
            if (DEBUG_ENABLED) {
                log.debug("The value of xsi:type is " + value);
            }
            if (value != null) {
                value = value.trim();
                if (value.indexOf(":") > 0) {
                    String refPrefix = value.substring(0, value.indexOf(":"));
                    OMNamespace omNS = element.findNamespaceURI(refPrefix);
                    String refNamespace = (omNS == null) ? null : omNS.getNamespaceURI();
                    if (refNamespace != null && refNamespace.length() > 0) {

                        newPrefix = generateSetPrefix(refPrefix, refNamespace, writer, true);
                        // If the prefix is not associated with a namespace yet, remember it so that we can
                        // write out a namespace declaration
                        if (newPrefix != null) {
                            if (DEBUG_ENABLED) {
                                log.debug(
                                        "An xmlns:" + newPrefix + "=\"" + refNamespace + "\" will be written");
                            }
                            if (writePrefixList == null) {
                                writePrefixList = new ArrayList();
                                writeNSList = new ArrayList();
                            }
                            if (!writePrefixList.contains(newPrefix)) {
                                writePrefixList.add(newPrefix);
                                writeNSList.add(refNamespace);
                            }
                        }
                    }
                }
            }
        }
    }

    // Now write out the list of namespace declarations in this list that we constructed
    // while doing the "set" processing.
    if (writePrefixList != null) {
        for (int i = 0; i < writePrefixList.size(); i++) {
            String prefix = (String) writePrefixList.get(i);
            String namespace = (String) writeNSList.get(i);
            if (prefix != null) {
                if (namespace == null) {
                    writer.writeNamespace(prefix, "");
                } else {
                    writer.writeNamespace(prefix, namespace);
                }
            } else {
                writer.writeDefaultNamespace(namespace);
            }
        }
    }

    // Now write the attributes
    attrs = element.getAllAttributes();
    while (attrs != null && attrs.hasNext()) {
        OMAttribute attr = (OMAttribute) attrs.next();
        OMNamespace omNamespace = attr.getNamespace();
        String prefix = null;
        String namespace = null;
        if (omNamespace != null) {
            prefix = omNamespace.getPrefix();
            namespace = omNamespace.getNamespaceURI();
        }
        prefix = (prefix != null && prefix.length() == 0) ? null : prefix;
        namespace = (namespace != null && namespace.length() == 0) ? null : namespace;

        if (prefix == null && namespace != null) {
            // Default namespaces are not allowed on an attribute reference.
            // Earlier in this code, a unique prefix was added for this case...now obtain and use it
            prefix = writer.getPrefix(namespace);
            //XMLStreamWriter doesn't allow for getPrefix to know whether you're asking for the prefix
            //for an attribute or an element. So if the namespace matches the default namespace getPrefix will return
            //the empty string, as if it were an element, in all cases (even for attributes, and even if
            //there was a prefix specifically set up for this), which is not the desired behavior.
            //Since the interface is base java, we can't fix it where we need to (by adding an attr boolean to
            //XMLStreamWriter.getPrefix), so we hack it in here...
            if (prefix == null || "".equals(prefix)) {
                for (int i = 0; i < writePrefixList.size(); i++) {
                    if (namespace.equals((String) writeNSList.get(i))) {
                        prefix = (String) writePrefixList.get(i);
                    }
                }
            }
        } else if (namespace != null) {
            // Use the writer's prefix if it is different, but if the writers
            // prefix is empty then do not replace because attributes do not
            // default to the default namespace like elements do.
            String writerPrefix = writer.getPrefix(namespace);
            if (!prefix.equals(writerPrefix) && writerPrefix != null && !"".equals(writerPrefix)) {
                prefix = writerPrefix;
            }
        }
        if (namespace != null) {
            if (prefix == null && OMConstants.XMLNS_URI.equals(namespace)) {
                prefix = OMConstants.XMLNS_PREFIX;
            }
            // Qualified attribute
            writer.writeAttribute(prefix, namespace, attr.getLocalName(), attr.getAttributeValue());
        } else {
            // Unqualified attribute
            writer.writeAttribute(attr.getLocalName(), attr.getAttributeValue());
        }
    }
}

From source file:org.apache.olingo.client.core.serialization.AtomSerializer.java

private void entityRef(final XMLStreamWriter writer, final Entity entity) throws XMLStreamException {
    writer.writeStartElement(Constants.ATOM_ELEM_ENTRY_REF);
    writer.writeDefaultNamespace(namespaceMetadata);
    writer.writeAttribute(Constants.ATOM_ATTR_ID, entity.getId().toASCIIString());
    writer.writeEndElement();/* www.  j a v  a  2 s .  c  o  m*/
}

From source file:org.apache.olingo.client.core.serialization.AtomSerializer.java

private void entityRef(final XMLStreamWriter writer, final ResWrap<Entity> container)
        throws XMLStreamException {
    writer.writeStartElement(Constants.ATOM_ELEM_ENTRY_REF);
    writer.writeDefaultNamespace(namespaceMetadata);
    addContextInfo(writer, container);/*w w  w .  j  a va2 s .  c  o  m*/
    writer.writeAttribute(Constants.ATOM_ATTR_ID, container.getPayload().getId().toASCIIString());
}