下面列出了怎么用javax.xml.stream.events.Attribute的API类实例代码及写法，或者点击链接到github查看源代码。
private PolicySourceModel initializeNewModel(final StartElement element) throws PolicyException, XMLStreamException {
PolicySourceModel model;
final NamespaceVersion nsVersion = NamespaceVersion.resolveVersion(element.getName().getNamespaceURI());
final Attribute policyName = getAttributeByName(element, nsVersion.asQName(XmlToken.Name));
final Attribute xmlId = getAttributeByName(element, PolicyConstants.XML_ID);
Attribute policyId = getAttributeByName(element, PolicyConstants.WSU_ID);
if (policyId == null) {
policyId = xmlId;
} else if (xmlId != null) {
throw LOGGER.logSevereException(new PolicyException(LocalizationMessages.WSP_0058_MULTIPLE_POLICY_IDS_NOT_ALLOWED()));
}
model = createSourceModel(nsVersion,
(policyId == null) ? null : policyId.getValue(),
(policyName == null) ? null : policyName.getValue());
return model;
}
/**
* Read the numeric format string out of the styles table for this cell. Stores the result in the Cell.
*
* @param startElement
* @param cell
*/
void setFormatString(StartElement startElement, StreamingCell cell) {
Attribute cellStyle = startElement.getAttributeByName(new QName("s"));
String cellStyleString = (cellStyle != null) ? cellStyle.getValue() : null;
XSSFCellStyle style = null;
if (cellStyleString != null) {
style = stylesTable.getStyleAt(Integer.parseInt(cellStyleString));
} else if (stylesTable.getNumCellStyles() > 0) {
style = stylesTable.getStyleAt(0);
}
if (style != null) {
cell.setNumericFormatIndex(style.getDataFormat());
String formatString = style.getDataFormatString();
if (formatString != null) {
cell.setNumericFormat(formatString);
} else {
cell.setNumericFormat(BuiltinFormats.getBuiltinFormat(cell.getNumericFormatIndex()));
}
} else {
cell.setNumericFormatIndex(null);
cell.setNumericFormat(null);
}
}
@SuppressWarnings("rawtypes")
private Attribute getAttribute(int index) {
if (!this.event.isStartElement()) {
throw new IllegalStateException();
}
int count = 0;
Iterator attributes = this.event.asStartElement().getAttributes();
while (attributes.hasNext()) {
Attribute attribute = (Attribute) attributes.next();
if (count == index) {
return attribute;
}
else {
count++;
}
}
throw new IllegalArgumentException();
}
@SuppressWarnings( "unchecked" )
@Override
public void convert( final XMLEvent event, final XMLEventWriter eventWriter ) throws XMLStreamException {
if ( isStartElementNamed( event, "containedComponents" ) ) {
final List<Attribute> attributes = new ArrayList<>();
attributes.addAll( toList( event.asStartElement().getAttributes() ) );
eventWriter.add( startElementNamed( "containedElements", attributes.iterator() ) );
return;
}
if ( isEndElementNamed( event, "containedComponents" ) ) {
eventWriter.add( endElementNamed( "containedElements" ) );
return;
}
eventWriter.add( event );
}
private PolicySourceModel initializeNewModel(final StartElement element) throws PolicyException, XMLStreamException {
PolicySourceModel model;
final NamespaceVersion nsVersion = NamespaceVersion.resolveVersion(element.getName().getNamespaceURI());
final Attribute policyName = getAttributeByName(element, nsVersion.asQName(XmlToken.Name));
final Attribute xmlId = getAttributeByName(element, PolicyConstants.XML_ID);
Attribute policyId = getAttributeByName(element, PolicyConstants.WSU_ID);
if (policyId == null) {
policyId = xmlId;
} else if (xmlId != null) {
throw LOGGER.logSevereException(new PolicyException(LocalizationMessages.WSP_0058_MULTIPLE_POLICY_IDS_NOT_ALLOWED()));
}
model = createSourceModel(nsVersion,
(policyId == null) ? null : policyId.getValue(),
(policyName == null) ? null : policyName.getValue());
return model;
}
public TubelineFeature parse(XMLEventReader reader) throws WebServiceException {
try {
final StartElement element = reader.nextEvent().asStartElement();
boolean attributeEnabled = true;
final Iterator iterator = element.getAttributes();
while (iterator.hasNext()) {
final Attribute nextAttribute = (Attribute) iterator.next();
final QName attributeName = nextAttribute.getName();
if (ENABLED_ATTRIBUTE_NAME.equals(attributeName)) {
attributeEnabled = ParserUtil.parseBooleanValue(nextAttribute.getValue());
} else if (NAME_ATTRIBUTE_NAME.equals(attributeName)) {
// TODO use name attribute
} else {
// TODO logging message
throw LOGGER.logSevereException(new WebServiceException("Unexpected attribute"));
}
}
return parseFactories(attributeEnabled, element, reader);
} catch (XMLStreamException e) {
throw LOGGER.logSevereException(new WebServiceException("Failed to unmarshal XML document", e));
}
}
private void handleStartElement(StartElement startElement) throws SAXException {
if (getContentHandler() != null) {
QName qName = startElement.getName();
if (hasNamespacesFeature()) {
for (Iterator i = startElement.getNamespaces(); i.hasNext();) {
Namespace namespace = (Namespace) i.next();
startPrefixMapping(namespace.getPrefix(), namespace.getNamespaceURI());
}
for (Iterator i = startElement.getAttributes(); i.hasNext();){
Attribute attribute = (Attribute) i.next();
QName attributeName = attribute.getName();
startPrefixMapping(attributeName.getPrefix(), attributeName.getNamespaceURI());
}
getContentHandler().startElement(qName.getNamespaceURI(), qName.getLocalPart(), toQualifiedName(qName),
getAttributes(startElement));
}
else {
getContentHandler().startElement("", "", toQualifiedName(qName), getAttributes(startElement));
}
}
}
private Attribute anonymizeAttribute(Attribute attribute) {
if (attribute.getName().equals(RDF_ID)) {
return xmlStaxContext.eventFactory.createAttribute(attribute.getName(), dictionary.anonymize(attribute.getValue()));
} else if (attribute.getName().equals(RDF_RESOURCE) || attribute.getName().equals(RDF_ABOUT)) {
// skip outside graph rdf:ID references
AttributeValue value = AttributeValue.parseValue(attribute);
if ((value.getNsUri() == null || !value.getNsUri().matches(CIM_URI_PATTERN)) &&
(rdfIdValues == null || rdfIdValues.contains(value.get()))) {
return xmlStaxContext.eventFactory.createAttribute(attribute.getName(), value.toString(dictionary));
} else {
skipped.add(attribute.getValue());
return null;
}
} else {
throw new AssertionError("Unknown attribute " + attribute.getName());
}
}
private void addRdfIdValues(InputStream is, Set<String> rdfIdValues) throws XMLStreamException {
// memoize RDF ID values of the document
XMLEventReader eventReader = xmlStaxContext.inputFactory.createXMLEventReader(is);
while (eventReader.hasNext()) {
XMLEvent event = eventReader.nextEvent();
if (event.isStartElement()) {
StartElement startElement = event.asStartElement();
Iterator it = startElement.getAttributes();
while (it.hasNext()) {
Attribute attribute = (Attribute) it.next();
QName name = attribute.getName();
if (RDF_ID.equals(name)) {
rdfIdValues.add(attribute.getValue());
}
}
}
}
eventReader.close();
}
private Attribute getAttributeByName(final StartElement element,
final QName attributeName) {
// call standard API method to retrieve the attribute by name
Attribute attribute = element.getAttributeByName(attributeName);
// try to find the attribute without a prefix.
if (attribute == null) {
final String localAttributeName = attributeName.getLocalPart();
final Iterator iterator = element.getAttributes();
while (iterator.hasNext()) {
final Attribute nextAttribute = (Attribute) iterator.next();
final QName aName = nextAttribute.getName();
final boolean attributeFoundByWorkaround = aName.equals(attributeName) || (aName.getLocalPart().equals(localAttributeName) && (aName.getPrefix() == null || "".equals(aName.getPrefix())));
if (attributeFoundByWorkaround) {
attribute = nextAttribute;
break;
}
}
}
return attribute;
}
@Override
public Iterator<Attribute> getAttributes() {
if (fAttributes != null) {
Collection<Attribute> coll = fAttributes.values();
return new ReadOnlyIterator<>(coll.iterator());
}
return new ReadOnlyIterator<>();
}
void addAttributes(Iterator attrs){
if(attrs == null)
return;
while(attrs.hasNext()){
Attribute attr = (Attribute)attrs.next();
fAttributes.put(attr.getName(),attr);
}
}
private AuditProviderEntry getEntry(XMLStreamReader reader) throws XMLStreamException
{
String codeName = null;
Map<String, Object> options = new HashMap<String, Object>();
final int count = reader.getAttributeCount();
if (count < 1)
{
throw StaxParserUtil.missingRequired(reader, Collections.singleton(org.jboss.security.config.Attribute.CODE));
}
for (int i = 0; i < count; i++)
{
final String value = reader.getAttributeValue(i);
final org.jboss.security.config.Attribute attribute = org.jboss.security.config.Attribute.forName(reader
.getAttributeLocalName(i));
switch (attribute)
{
case CODE : {
codeName = value;
break;
}
default :
throw StaxParserUtil.unexpectedAttribute(reader, i);
}
}
//See if there are options
ModuleOptionParser moParser = new ModuleOptionParser();
options.putAll(moParser.parse(reader));
AuditProviderEntry entry = new AuditProviderEntry(codeName, options);
return entry;
}
private void parseAttribute( Object[] outputRowDataAttribute, Attribute a, boolean enabledNamespaces ) {
if ( data.pos_xml_data_name != -1 ) {
outputRowDataAttribute[data.pos_xml_data_name] = getAttributeName( a, enabledNamespaces );
}
if ( data.pos_xml_data_value != -1 ) {
outputRowDataAttribute[data.pos_xml_data_value] = a.getValue();
}
}
public void attribute(int prefix, String localName, String value) throws IOException, XMLStreamException {
Attribute att;
if(prefix==-1)
att = ef.createAttribute(localName,value);
else
att = ef.createAttribute(
nsContext.getPrefix(prefix),
nsContext.getNamespaceURI(prefix),
localName, value);
out.add(att);
}
private void parseAssertionData(NamespaceVersion nsVersion, String value, ModelNode childNode, final StartElement childElement) throws IllegalArgumentException, PolicyException {
// finish assertion node processing: create and set assertion data...
final Map<QName, String> attributeMap = new HashMap<QName, String>();
boolean optional = false;
boolean ignorable = false;
final Iterator iterator = childElement.getAttributes();
while (iterator.hasNext()) {
final Attribute nextAttribute = (Attribute) iterator.next();
final QName name = nextAttribute.getName();
if (attributeMap.containsKey(name)) {
throw LOGGER.logSevereException(new PolicyException(LocalizationMessages.WSP_0059_MULTIPLE_ATTRS_WITH_SAME_NAME_DETECTED_FOR_ASSERTION(nextAttribute.getName(), childElement.getName())));
} else {
if (nsVersion.asQName(XmlToken.Optional).equals(name)) {
optional = parseBooleanValue(nextAttribute.getValue());
} else if (nsVersion.asQName(XmlToken.Ignorable).equals(name)) {
ignorable = parseBooleanValue(nextAttribute.getValue());
} else {
attributeMap.put(name, nextAttribute.getValue());
}
}
}
final AssertionData nodeData = new AssertionData(childElement.getName(), value, attributeMap, childNode.getType(), optional, ignorable);
// check visibility value syntax if present...
if (nodeData.containsAttribute(PolicyConstants.VISIBILITY_ATTRIBUTE)) {
final String visibilityValue = nodeData.getAttributeValue(PolicyConstants.VISIBILITY_ATTRIBUTE);
if (!PolicyConstants.VISIBILITY_VALUE_PRIVATE.equals(visibilityValue)) {
throw LOGGER.logSevereException(new PolicyException(LocalizationMessages.WSP_0004_UNEXPECTED_VISIBILITY_ATTR_VALUE(visibilityValue)));
}
}
childNode.setOrReplaceNodeData(nodeData);
}
public void addAttributes(Iterator attrs){
if(attrs != null) {
while(attrs.hasNext()){
Attribute attr = (Attribute)attrs.next();
_attributes.put(attr.getName(),attr);
}
}
}
@Override
public XMLEvent transform(XMLEvent event) {
switch (event.getEventType()) {
case START_ELEMENT: {
Attribute attribute = event.asStartElement().getAttributeByName(new QName("Protected"));
if (attribute != null) {
encryptContent = Helpers.toBoolean(attribute.getValue());
// this is a workaround for Simple XML not calling converter on attributes
List<Attribute> attributes = new ArrayList<>();
if (attribute.getValue().toLowerCase().equals("true")) {
attributes.add(eventFactory.createAttribute("Protected", "True"));
}
event = eventFactory.createStartElement(
event.asStartElement().getName(),
attributes.iterator(),
null);
}
break;
}
case CHARACTERS: {
if (encryptContent) {
String unencrypted = event.asCharacters().getData();
String encrypted = Helpers.encodeBase64Content(encryptor.encrypt(unencrypted.getBytes()), false);
event = eventFactory.createCharacters(encrypted);
}
break;
}
case END_ELEMENT: {
encryptContent = false;
break;
}
}
return event;
}
@Override
public Attribute getAttributeByName(QName name)
{
if (mAttrs == null) {
return null;
}
int ix = mAttrs.findIndex(name);
if (ix < 0) {
return null;
}
return constructAttr(mRawAttrs, ix, mAttrs.isDefault(ix));
}
/**
* Get the attributes associated with the given START_ELEMENT StAXevent.
*
* @return the StAX attributes converted to an org.xml.sax.Attributes
*/
private Attributes getAttributes(StartElement event) {
AttributesImpl attrs = new AttributesImpl();
if ( !event.isStartElement() ) {
throw new InternalError(
"getAttributes() attempting to process: " + event);
}
// in SAX, namespace declarations are not part of attributes by default.
// (there's a property to control that, but as far as we are concerned
// we don't use it.) So don't add xmlns:* to attributes.
// gather non-namespace attrs
for (Iterator i = event.getAttributes(); i.hasNext();) {
Attribute staxAttr = (javax.xml.stream.events.Attribute)i.next();
String uri = staxAttr.getName().getNamespaceURI();
if (uri == null) {
uri = "";
}
String localName = staxAttr.getName().getLocalPart();
String prefix = staxAttr.getName().getPrefix();
String qName;
if (prefix == null || prefix.length() == 0) {
qName = localName;
} else {
qName = prefix + ':' + localName;
}
String type = staxAttr.getDTDType();
String value = staxAttr.getValue();
attrs.addAttribute(uri, localName, qName, type, value);
}
return attrs;
}
private Entity entityRef(final StartElement start) throws XMLStreamException {
final Entity entity = new Entity();
final Attribute entityRefId = start.getAttributeByName(Constants.QNAME_ATOM_ATTR_ID);
if (entityRefId != null) {
entity.setId(URI.create(entityRefId.getValue()));
}
return entity;
}
void addAttribute(Attribute attr) {
if (attr.isNamespace()) {
fNamespaces.add((Namespace) attr);
} else {
fAttributes.put(attr.getName(), attr);
}
}
@Override
public Iterator<Attribute> getAttributes() {
if (fAttributes != null) {
Collection<Attribute> coll = fAttributes.values();
return new ReadOnlyIterator<>(coll.iterator());
}
return new ReadOnlyIterator<>();
}
@Override
public Attribute getAttributeByName(QName name)
{
if (mAttrs == null) {
return null;
}
return mAttrs.get(name);
}
public void addAttributes(Iterator attrs){
if(attrs != null) {
while(attrs.hasNext()){
Attribute attr = (Attribute)attrs.next();
_attributes.put(attr.getName(),attr);
}
}
}
private void fillXMLAttributes(StartElement event) {
fAttributes.removeAllAttributes();
final Iterator attrs = event.getAttributes();
while (attrs.hasNext()) {
Attribute attr = (Attribute) attrs.next();
fillQName(fAttributeQName, attr.getName());
String type = attr.getDTDType();
int idx = fAttributes.getLength();
fAttributes.addAttributeNS(fAttributeQName,
(type != null) ? type : XMLSymbols.fCDATASymbol, attr.getValue());
fAttributes.setSpecified(idx, attr.isSpecified());
}
}
private List<Attribute> getAttributes(Attributes attributes) {
List<Attribute> result = new ArrayList<Attribute>();
for (int i = 0; i < attributes.getLength(); i++) {
QName attrName = toQName(attributes.getURI(i), attributes.getQName(i));
if (!isNamespaceDeclaration(attrName)) {
result.add(this.eventFactory.createAttribute(attrName, attributes.getValue(i)));
}
}
return result;
}
public void attribute(int prefix, String localName, String value) throws IOException, XMLStreamException {
Attribute att;
if(prefix==-1)
att = ef.createAttribute(localName,value);
else
att = ef.createAttribute(
nsContext.getPrefix(prefix),
nsContext.getNamespaceURI(prefix),
localName, value);
out.add(att);
}
@SuppressWarnings("unchecked")
private AppConfigurationEntry getEntry(XMLEventReader xmlEventReader) throws XMLStreamException
{
XMLEvent xmlEvent = xmlEventReader.nextEvent();
Map<String, Object> options = new HashMap<String,Object>();
String codeName = null;
LoginModuleControlFlag controlFlag = LoginModuleControlFlag.REQUIRED;
//We got the login-module element
StartElement loginModuleElement = (StartElement) xmlEvent;
//We got the login-module element
Iterator<Attribute> attrs = loginModuleElement.getAttributes();
while(attrs.hasNext())
{
Attribute attribute = attrs.next();
QName attQName = attribute.getName();
String attributeValue = StaxParserUtil.getAttributeValue(attribute);
if("code".equals(attQName.getLocalPart()))
{
codeName = attributeValue;
}
else if("flag".equals(attQName.getLocalPart()))
{
controlFlag = getControlFlag(attributeValue);
}
}
//See if there are options
ModuleOptionParser moParser = new ModuleOptionParser();
options.putAll(moParser.parse(xmlEventReader));
return new AppConfigurationEntry(codeName, controlFlag, options);
}
/**
* Get the attributes associated with the given START_ELEMENT StAXevent.
*
* @return the StAX attributes converted to an org.xml.sax.Attributes
*/
private Attributes getAttributes(StartElement event) {
AttributesImpl attrs = new AttributesImpl();
if ( !event.isStartElement() ) {
throw new InternalError(
"getAttributes() attempting to process: " + event);
}
// in SAX, namespace declarations are not part of attributes by default.
// (there's a property to control that, but as far as we are concerned
// we don't use it.) So don't add xmlns:* to attributes.
// gather non-namespace attrs
for (Iterator i = event.getAttributes(); i.hasNext();) {
Attribute staxAttr = (javax.xml.stream.events.Attribute)i.next();
String uri = staxAttr.getName().getNamespaceURI();
if (uri == null) {
uri = "";
}
String localName = staxAttr.getName().getLocalPart();
String prefix = staxAttr.getName().getPrefix();
String qName;
if (prefix == null || prefix.length() == 0) {
qName = localName;
} else {
qName = prefix + ':' + localName;
}
String type = staxAttr.getDTDType();
String value = staxAttr.getValue();
attrs.addAttribute(uri, localName, qName, type, value);
}
return attrs;
}