下面列出了javax.xml.stream.events.XMLEvent#ENTITY_REFERENCE 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
private void handleEvent(XMLStreamReader xmlr, int eventType) {
switch (eventType) {
case XMLEvent.START_ELEMENT:
handleStartElement(xmlr);
break;
case XMLEvent.END_ELEMENT:
handleEndElement(xmlr);
break;
case XMLEvent.CHARACTERS:
handleCharacters(xmlr);
break;
case XMLEvent.COMMENT:
handleComment(xmlr);
break;
case XMLEvent.ENTITY_REFERENCE:
break;
case XMLEvent.ATTRIBUTE:
break;
case XMLEvent.DTD:
break;
case XMLEvent.CDATA:
break;
default:
break;
}
}
/**
* @return
*/
public boolean hasValue() {
if(fEventType == XMLEvent.START_ELEMENT || fEventType == XMLEvent.END_ELEMENT
|| fEventType == XMLEvent.ENTITY_REFERENCE || fEventType == XMLEvent.PROCESSING_INSTRUCTION
|| fEventType == XMLEvent.COMMENT || fEventType == XMLEvent.CHARACTERS) {
return true;
} else {
return false;
}
}
public String getLocalName() {
if(fEventType == XMLEvent.START_ELEMENT || fEventType == XMLEvent.END_ELEMENT){
//xxx check whats the value of fCurrentElement
return fScanner.getElementQName().localpart ;
}
else if(fEventType == XMLEvent.ENTITY_REFERENCE){
return fScanner.getEntityName();
}
throw new IllegalStateException("Method getLocalName() cannot be called for " +
getEventTypeString(fEventType) + " event.");
}
/**
* @return
*/
public boolean hasValue() {
if(fEventType == XMLEvent.START_ELEMENT || fEventType == XMLEvent.END_ELEMENT
|| fEventType == XMLEvent.ENTITY_REFERENCE || fEventType == XMLEvent.PROCESSING_INSTRUCTION
|| fEventType == XMLEvent.COMMENT || fEventType == XMLEvent.CHARACTERS) {
return true;
} else {
return false;
}
}
final static String getEventTypeString(int eventType) {
switch (eventType){
case XMLEvent.START_ELEMENT:
return "START_ELEMENT";
case XMLEvent.END_ELEMENT:
return "END_ELEMENT";
case XMLEvent.PROCESSING_INSTRUCTION:
return "PROCESSING_INSTRUCTION";
case XMLEvent.CHARACTERS:
return "CHARACTERS";
case XMLEvent.COMMENT:
return "COMMENT";
case XMLEvent.START_DOCUMENT:
return "START_DOCUMENT";
case XMLEvent.END_DOCUMENT:
return "END_DOCUMENT";
case XMLEvent.ENTITY_REFERENCE:
return "ENTITY_REFERENCE";
case XMLEvent.ATTRIBUTE:
return "ATTRIBUTE";
case XMLEvent.DTD:
return "DTD";
case XMLEvent.CDATA:
return "CDATA";
case XMLEvent.SPACE:
return "SPACE";
}
return "UNKNOWN_EVENT_TYPE, " + String.valueOf(eventType);
}
/**
* @return
*/
public boolean hasValue() {
if (fEventType == XMLEvent.START_ELEMENT || fEventType == XMLEvent.END_ELEMENT
|| fEventType == XMLEvent.ENTITY_REFERENCE || fEventType == XMLEvent.PROCESSING_INSTRUCTION
|| fEventType == XMLEvent.COMMENT || fEventType == XMLEvent.CHARACTERS) {
return true;
} else {
return false;
}
}
final static String getEventTypeString(int eventType) {
switch (eventType){
case XMLEvent.START_ELEMENT:
return "START_ELEMENT";
case XMLEvent.END_ELEMENT:
return "END_ELEMENT";
case XMLEvent.PROCESSING_INSTRUCTION:
return "PROCESSING_INSTRUCTION";
case XMLEvent.CHARACTERS:
return "CHARACTERS";
case XMLEvent.COMMENT:
return "COMMENT";
case XMLEvent.START_DOCUMENT:
return "START_DOCUMENT";
case XMLEvent.END_DOCUMENT:
return "END_DOCUMENT";
case XMLEvent.ENTITY_REFERENCE:
return "ENTITY_REFERENCE";
case XMLEvent.ATTRIBUTE:
return "ATTRIBUTE";
case XMLEvent.DTD:
return "DTD";
case XMLEvent.CDATA:
return "CDATA";
case XMLEvent.SPACE:
return "SPACE";
}
return "UNKNOWN_EVENT_TYPE, " + String.valueOf(eventType);
}
/**
* Return true if the current event has text, false otherwise The following
* events have text: CHARACTERS,DTD ,ENTITY_REFERENCE, COMMENT
*/
public boolean hasText() {
if (DEBUG) {
pr("XMLReaderImpl#EVENT TYPE = " + fEventType);
}
if (fEventType == XMLEvent.CHARACTERS || fEventType == XMLEvent.COMMENT
|| fEventType == XMLEvent.CDATA) {
return fScanner.getCharacterData().length > 0;
} else if (fEventType == XMLEvent.ENTITY_REFERENCE) {
String name = fScanner.getEntityName();
if (name != null) {
if (fScanner.foundBuiltInRefs) {
return true;
}
XMLEntityStorage entityStore = fEntityManager.getEntityStore();
Entity en = entityStore.getEntity(name);
if (en == null) {
return false;
}
if (en.isExternal()) {
return ((Entity.ExternalEntity) en).entityLocation.getExpandedSystemId() != null;
} else {
return ((Entity.InternalEntity) en).text != null;
}
} else {
return false;
}
} else if (fEventType == XMLEvent.DTD) {
return fScanner.fSeenDoctypeDecl;
}
return false;
}
final static String getEventTypeString(int eventType) {
switch (eventType) {
case XMLEvent.START_ELEMENT:
return "START_ELEMENT";
case XMLEvent.END_ELEMENT:
return "END_ELEMENT";
case XMLEvent.PROCESSING_INSTRUCTION:
return "PROCESSING_INSTRUCTION";
case XMLEvent.CHARACTERS:
return "CHARACTERS";
case XMLEvent.COMMENT:
return "COMMENT";
case XMLEvent.START_DOCUMENT:
return "START_DOCUMENT";
case XMLEvent.END_DOCUMENT:
return "END_DOCUMENT";
case XMLEvent.ENTITY_REFERENCE:
return "ENTITY_REFERENCE";
case XMLEvent.ATTRIBUTE:
return "ATTRIBUTE";
case XMLEvent.DTD:
return "DTD";
case XMLEvent.CDATA:
return "CDATA";
case XMLEvent.SPACE:
return "SPACE";
}
return "UNKNOWN_EVENT_TYPE, " + String.valueOf(eventType);
}
final static String getEventTypeString(int eventType) {
switch (eventType){
case XMLEvent.START_ELEMENT:
return "START_ELEMENT";
case XMLEvent.END_ELEMENT:
return "END_ELEMENT";
case XMLEvent.PROCESSING_INSTRUCTION:
return "PROCESSING_INSTRUCTION";
case XMLEvent.CHARACTERS:
return "CHARACTERS";
case XMLEvent.COMMENT:
return "COMMENT";
case XMLEvent.START_DOCUMENT:
return "START_DOCUMENT";
case XMLEvent.END_DOCUMENT:
return "END_DOCUMENT";
case XMLEvent.ENTITY_REFERENCE:
return "ENTITY_REFERENCE";
case XMLEvent.ATTRIBUTE:
return "ATTRIBUTE";
case XMLEvent.DTD:
return "DTD";
case XMLEvent.CDATA:
return "CDATA";
case XMLEvent.SPACE:
return "SPACE";
}
return "UNKNOWN_EVENT_TYPE, " + String.valueOf(eventType);
}
XMLEvent getXMLEvent(XMLStreamReader reader){
XMLEvent event = null;
//returns the current event
int eventType = reader.getEventType();
//this needs to be set before creating events
factory.setLocation(reader.getLocation());
switch(eventType){
case XMLEvent.START_ELEMENT:
{
StartElementEvent startElement = (StartElementEvent)factory.createStartElement(reader.getPrefix(),
reader.getNamespaceURI(), reader.getLocalName());
addAttributes(startElement,reader);
addNamespaces(startElement, reader);
//need to fix it along with the Reader
//setNamespaceContext(startElement,reader);
event = startElement;
break;
}
case XMLEvent.END_ELEMENT:
{
EndElementEvent endElement = (EndElementEvent)factory.createEndElement(
reader.getPrefix(), reader.getNamespaceURI(), reader.getLocalName());
addNamespaces(endElement,reader);
event = endElement ;
break;
}
case XMLEvent.PROCESSING_INSTRUCTION:
{
event = factory.createProcessingInstruction(reader.getPITarget(),reader.getPIData());
break;
}
case XMLEvent.CHARACTERS:
{
if (reader.isWhiteSpace())
event = factory.createSpace(reader.getText());
else
event = factory.createCharacters(reader.getText());
break;
}
case XMLEvent.COMMENT:
{
event = factory.createComment(reader.getText());
break;
}
case XMLEvent.START_DOCUMENT:
{
StartDocumentEvent docEvent = (StartDocumentEvent)factory.createStartDocument(
reader.getVersion(), reader.getEncoding(), reader.isStandalone());
if(reader.getCharacterEncodingScheme() != null){
docEvent.setDeclaredEncoding(true);
}else{
docEvent.setDeclaredEncoding(false);
}
event = docEvent ;
break;
}
case XMLEvent.END_DOCUMENT:{
EndDocumentEvent endDocumentEvent = new EndDocumentEvent() ;
event = endDocumentEvent ;
break;
}
case XMLEvent.ENTITY_REFERENCE:{
event = factory.createEntityReference(reader.getLocalName(),
new EntityDeclarationImpl(reader.getLocalName(),reader.getText()));
break;
}
case XMLEvent.ATTRIBUTE:{
event = null ;
break;
}
case XMLEvent.DTD:{
event = factory.createDTD(reader.getText());
break;
}
case XMLEvent.CDATA:{
event = factory.createCData(reader.getText());
break;
}
case XMLEvent.SPACE:{
event = factory.createSpace(reader.getText());
break;
}
}
return event ;
}
/** Returns the current value of the parse event as a string,
* this returns the string value of a CHARACTERS event,
* returns the value of a COMMENT, the replacement value
* for an ENTITY_REFERENCE,
* or the String value of the DTD
* @return the current text or null
* @throws java.lang.IllegalStateException if this state is not
* a valid text state.
*/
public String getText() {
if( fEventType == XMLEvent.CHARACTERS || fEventType == XMLEvent.COMMENT
|| fEventType == XMLEvent.CDATA || fEventType == XMLEvent.SPACE){
//this requires creation of new string
//fEventType == XMLEvent.ENTITY_REFERENCE
return fScanner.getCharacterData().toString() ;
} else if(fEventType == XMLEvent.ENTITY_REFERENCE){
String name = fScanner.getEntityName();
if(name != null){
if(fScanner.foundBuiltInRefs)
return fScanner.getCharacterData().toString();
XMLEntityStorage entityStore = fEntityManager.getEntityStore();
Entity en = entityStore.getEntity(name);
if(en == null)
return null;
if(en.isExternal())
return ((Entity.ExternalEntity)en).entityLocation.getExpandedSystemId();
else
return ((Entity.InternalEntity)en).text;
}else
return null;
}
else if(fEventType == XMLEvent.DTD){
if(fDTDDecl != null){
return fDTDDecl;
}
XMLStringBuffer tmpBuffer = fScanner.getDTDDecl();
fDTDDecl = tmpBuffer.toString();
return fDTDDecl;
} else{
throw new IllegalStateException("Current state " + getEventTypeString(fEventType)
+ " is not among the states" + getEventTypeString(XMLEvent.CHARACTERS) + ", "
+ getEventTypeString(XMLEvent.COMMENT) + ", "
+ getEventTypeString(XMLEvent.CDATA) + ", "
+ getEventTypeString(XMLEvent.SPACE) + ", "
+ getEventTypeString(XMLEvent.ENTITY_REFERENCE) + ", "
+ getEventTypeString(XMLEvent.DTD) + " valid for getText() " ) ;
}
}
public boolean isEntityReference() {
return fEventType == XMLEvent.ENTITY_REFERENCE;
}
XMLEvent getXMLEvent(XMLStreamReader reader){
XMLEvent event = null;
//returns the current event
int eventType = reader.getEventType();
//this needs to be set before creating events
factory.setLocation(reader.getLocation());
switch(eventType){
case XMLEvent.START_ELEMENT:
{
StartElementEvent startElement = (StartElementEvent)factory.createStartElement(reader.getPrefix(),
reader.getNamespaceURI(), reader.getLocalName());
addAttributes(startElement,reader);
addNamespaces(startElement, reader);
//need to fix it along with the Reader
//setNamespaceContext(startElement,reader);
event = startElement;
break;
}
case XMLEvent.END_ELEMENT:
{
EndElementEvent endElement = (EndElementEvent)factory.createEndElement(
reader.getPrefix(), reader.getNamespaceURI(), reader.getLocalName());
addNamespaces(endElement,reader);
event = endElement ;
break;
}
case XMLEvent.PROCESSING_INSTRUCTION:
{
event = factory.createProcessingInstruction(reader.getPITarget(),reader.getPIData());
break;
}
case XMLEvent.CHARACTERS:
{
if (reader.isWhiteSpace())
event = factory.createSpace(reader.getText());
else
event = factory.createCharacters(reader.getText());
break;
}
case XMLEvent.COMMENT:
{
event = factory.createComment(reader.getText());
break;
}
case XMLEvent.START_DOCUMENT:
{
StartDocumentEvent docEvent = (StartDocumentEvent)factory.createStartDocument(
reader.getVersion(), reader.getEncoding(), reader.isStandalone());
if(reader.getCharacterEncodingScheme() != null){
docEvent.setDeclaredEncoding(true);
}else{
docEvent.setDeclaredEncoding(false);
}
event = docEvent ;
break;
}
case XMLEvent.END_DOCUMENT:{
EndDocumentEvent endDocumentEvent = new EndDocumentEvent() ;
event = endDocumentEvent ;
break;
}
case XMLEvent.ENTITY_REFERENCE:{
event = factory.createEntityReference(reader.getLocalName(),
new EntityDeclarationImpl(reader.getLocalName(),reader.getText()));
break;
}
case XMLEvent.ATTRIBUTE:{
event = null ;
break;
}
case XMLEvent.DTD:{
event = factory.createDTD(reader.getText());
break;
}
case XMLEvent.CDATA:{
event = factory.createCData(reader.getText());
break;
}
case XMLEvent.SPACE:{
event = factory.createSpace(reader.getText());
break;
}
}
return event ;
}
/** Reads the content of a text-only element. Precondition:
* the current event is START_ELEMENT. Postcondition:
* The current event is the corresponding END_ELEMENT.
* @throws XMLStreamException if the current event is not a START_ELEMENT
* or if a non text element is encountered
*/
public String getElementText() throws XMLStreamException {
//we have to keep reference to the 'last event' of the stream to be able
//to make this check - is there another way ? - nb.
if(fLastEvent.getEventType() != XMLEvent.START_ELEMENT){
throw new XMLStreamException(
"parser must be on START_ELEMENT to read next text", fLastEvent.getLocation());
}
// STag content ETag
//[43] content ::= CharData? ((element | Reference | CDSect | PI | Comment) CharData?)*
//<foo>....some long text say in KB and underlying parser reports multiple character
// but getElementText() events....</foo>
String data = null;
//having a peeked event makes things really worse -- we have to test the first event
if(fPeekedEvent != null){
XMLEvent event = fPeekedEvent ;
fPeekedEvent = null;
int type = event.getEventType();
if( type == XMLEvent.CHARACTERS || type == XMLEvent.SPACE ||
type == XMLEvent.CDATA){
data = event.asCharacters().getData();
}
else if(type == XMLEvent.ENTITY_REFERENCE){
data = ((EntityReference)event).getDeclaration().getReplacementText();
}
else if(type == XMLEvent.COMMENT || type == XMLEvent.PROCESSING_INSTRUCTION){
//ignore
} else if(type == XMLEvent.START_ELEMENT) {
throw new XMLStreamException(
"elementGetText() function expects text only elment but START_ELEMENT was encountered.", event.getLocation());
}else if(type == XMLEvent.END_ELEMENT){
return "";
}
//create the string buffer and add initial data
StringBuffer buffer = new StringBuffer();
if(data != null && data.length() > 0 ) {
buffer.append(data);
}
//get the next event -- we should stop at END_ELEMENT but it can be any thing
//things are worse when implementing this function in XMLEventReader because
//there isn't any function called getText() which can get values for
//space, cdata, characters and entity reference
//nextEvent() would also set the last event.
event = nextEvent();
while(event.getEventType() != XMLEvent.END_ELEMENT){
if( type == XMLEvent.CHARACTERS || type == XMLEvent.SPACE ||
type == XMLEvent.CDATA){
data = event.asCharacters().getData();
}
else if(type == XMLEvent.ENTITY_REFERENCE){
data = ((EntityReference)event).getDeclaration().getReplacementText();
}
else if(type == XMLEvent.COMMENT || type == XMLEvent.PROCESSING_INSTRUCTION){
//ignore
} else if(type == XMLEvent.END_DOCUMENT) {
throw new XMLStreamException("unexpected end of document when reading element text content");
} else if(type == XMLEvent.START_ELEMENT) {
throw new XMLStreamException(
"elementGetText() function expects text only elment but START_ELEMENT was encountered.", event.getLocation());
} else {
throw new XMLStreamException(
"Unexpected event type "+ type, event.getLocation());
}
//add the data to the buffer
if(data != null && data.length() > 0 ) {
buffer.append(data);
}
event = nextEvent();
}
return buffer.toString();
}//if (fPeekedEvent != null)
//if there was no peeked, delegate everything to fXMLReader
//update the last event before returning the text
data = fXMLReader.getElementText();
fLastEvent = fXMLEventAllocator.allocate(fXMLReader);
return data;
}
private String readExceptedTags(HashMap<String, Object> data, List<String> tagStack) throws XMLStreamException, CiderPubmedFormatException {
String tag;
int eventType = this.xml.next();
while (this.xml.isWhiteSpace() || eventType == XMLEvent.SPACE)
eventType = this.xml.next();
switch (eventType) {
case XMLEvent.START_ELEMENT:
// push onto stack
tag = this.xml.getLocalName();
tagStack.add(0, tag);
return tag;
case XMLEvent.END_ELEMENT:
// pop stack
tag = this.xml.getLocalName();
if (tagStack.isEmpty())
throw new CiderPubmedFormatException("Tag end mismatch: (empty) " + " vs " + tag);
if (!tagStack.get(0).equals(tag))
throw new CiderPubmedFormatException("Tag end mismatch: " + tagStack.get(0) + " vs " + tag);
tagStack.remove(0);
return tag;
case XMLEvent.CHARACTERS:
String txt = this.xml.getText();
addToMap(data, txt, pathFromStack(tagStack));
return null; // do not return a tag indicator for text
case XMLEvent.COMMENT:
throw new CiderPubmedFormatException("Pubmed contains XML comments? Not expected here.");
case XMLEvent.START_DOCUMENT:
case XMLEvent.END_DOCUMENT:
throw new CiderPubmedFormatException("Start/End_Document not expected here.");
case XMLEvent.ENTITY_REFERENCE:
case XMLEvent.ATTRIBUTE:
case XMLEvent.PROCESSING_INSTRUCTION:
throw new CiderPubmedFormatException("Processing instr/Entity reference/Attribute not expected here.");
case XMLEvent.DTD:
throw new CiderPubmedFormatException("DTD not expected here.");
case XMLEvent.CDATA:
throw new CiderPubmedFormatException("CDATA not expected here.");
case XMLEvent.SPACE:
throw new CiderPubmedFormatException("SPACE not expected here.");
}
throw new CiderPubmedFormatException("Unknown tag seen!");
}
public boolean isEntityReference() {
return fEventType == XMLEvent.ENTITY_REFERENCE;
}
/** Reads the content of a text-only element. Precondition:
* the current event is START_ELEMENT. Postcondition:
* The current event is the corresponding END_ELEMENT.
* @throws XMLStreamException if the current event is not a START_ELEMENT
* or if a non text element is encountered
*/
public String getElementText() throws XMLStreamException {
//we have to keep reference to the 'last event' of the stream to be able
//to make this check - is there another way ? - nb.
if(fLastEvent.getEventType() != XMLEvent.START_ELEMENT){
throw new XMLStreamException(
"parser must be on START_ELEMENT to read next text", fLastEvent.getLocation());
}
// STag content ETag
//[43] content ::= CharData? ((element | Reference | CDSect | PI | Comment) CharData?)*
//<foo>....some long text say in KB and underlying parser reports multiple character
// but getElementText() events....</foo>
String data = null;
//having a peeked event makes things really worse -- we have to test the first event
if(fPeekedEvent != null){
XMLEvent event = fPeekedEvent ;
fPeekedEvent = null;
int type = event.getEventType();
if( type == XMLEvent.CHARACTERS || type == XMLEvent.SPACE ||
type == XMLEvent.CDATA){
data = event.asCharacters().getData();
}
else if(type == XMLEvent.ENTITY_REFERENCE){
data = ((EntityReference)event).getDeclaration().getReplacementText();
}
else if(type == XMLEvent.COMMENT || type == XMLEvent.PROCESSING_INSTRUCTION){
//ignore
} else if(type == XMLEvent.START_ELEMENT) {
throw new XMLStreamException(
"elementGetText() function expects text only elment but START_ELEMENT was encountered.", event.getLocation());
}else if(type == XMLEvent.END_ELEMENT){
return "";
}
//create the string buffer and add initial data
StringBuffer buffer = new StringBuffer();
if(data != null && data.length() > 0 ) {
buffer.append(data);
}
//get the next event -- we should stop at END_ELEMENT but it can be any thing
//things are worse when implementing this function in XMLEventReader because
//there isn't any function called getText() which can get values for
//space, cdata, characters and entity reference
//nextEvent() would also set the last event.
event = nextEvent();
while(event.getEventType() != XMLEvent.END_ELEMENT){
if( type == XMLEvent.CHARACTERS || type == XMLEvent.SPACE ||
type == XMLEvent.CDATA){
data = event.asCharacters().getData();
}
else if(type == XMLEvent.ENTITY_REFERENCE){
data = ((EntityReference)event).getDeclaration().getReplacementText();
}
else if(type == XMLEvent.COMMENT || type == XMLEvent.PROCESSING_INSTRUCTION){
//ignore
} else if(type == XMLEvent.END_DOCUMENT) {
throw new XMLStreamException("unexpected end of document when reading element text content");
} else if(type == XMLEvent.START_ELEMENT) {
throw new XMLStreamException(
"elementGetText() function expects text only elment but START_ELEMENT was encountered.", event.getLocation());
} else {
throw new XMLStreamException(
"Unexpected event type "+ type, event.getLocation());
}
//add the data to the buffer
if(data != null && data.length() > 0 ) {
buffer.append(data);
}
event = nextEvent();
}
return buffer.toString();
}//if (fPeekedEvent != null)
//if there was no peeked, delegate everything to fXMLReader
//update the last event before returning the text
data = fXMLReader.getElementText();
fLastEvent = fXMLEventAllocator.allocate(fXMLReader);
return data;
}
private void getNextTagData() throws XMLStreamException {
int eventType = this.xml.next();
switch (eventType) {
case XMLEvent.START_ELEMENT:
System.out.println("START_ELEMENT: " + this.xml.getLocalName());
return;
case XMLEvent.END_ELEMENT:
System.out.println("END_ELEMENT: " + this.xml.getLocalName());
return;
case XMLEvent.PROCESSING_INSTRUCTION:
System.out.println("PROCESSING_INSTRUCTION: " + this.xml.getLocalName());
return;
case XMLEvent.CHARACTERS:
System.out.println("CHARACTERS: " + this.xml.getText());
return;
case XMLEvent.COMMENT:
System.out.println("COMMENT: " + this.xml.getText());
return;
case XMLEvent.START_DOCUMENT:
System.out.println("START_DOCUMENT: " + this.xml.getLocalName());
return;
case XMLEvent.END_DOCUMENT:
System.out.println("END_DOCUMENT: " + this.xml.getLocalName());
return;
case XMLEvent.ENTITY_REFERENCE:
System.out.println("ENTITY_REFERENCE: " + this.xml.getLocalName());
return;
case XMLEvent.ATTRIBUTE:
System.out.println("ATTRIBUTE: " + this.xml.getLocalName());
return;
case XMLEvent.DTD:
System.out.println("DTD");
return;
case XMLEvent.CDATA:
System.out.println("CDATA");
return;
case XMLEvent.SPACE:
System.out.println("SPACE");
return;
}
System.out.println("Something else...");
}
/** Reads the content of a text-only element. Precondition:
* the current event is START_ELEMENT. Postcondition:
* The current event is the corresponding END_ELEMENT.
* @throws XMLStreamException if the current event is not a START_ELEMENT
* or if a non text element is encountered
*/
public String getElementText() throws XMLStreamException {
//we have to keep reference to the 'last event' of the stream to be able
//to make this check - is there another way ? - nb.
if(fLastEvent.getEventType() != XMLEvent.START_ELEMENT){
throw new XMLStreamException(
"parser must be on START_ELEMENT to read next text", fLastEvent.getLocation());
}
// STag content ETag
//[43] content ::= CharData? ((element | Reference | CDSect | PI | Comment) CharData?)*
//<foo>....some long text say in KB and underlying parser reports multiple character
// but getElementText() events....</foo>
String data = null;
//having a peeked event makes things really worse -- we have to test the first event
if(fPeekedEvent != null){
XMLEvent event = fPeekedEvent ;
fPeekedEvent = null;
int type = event.getEventType();
if( type == XMLEvent.CHARACTERS || type == XMLEvent.SPACE ||
type == XMLEvent.CDATA){
data = event.asCharacters().getData();
}
else if(type == XMLEvent.ENTITY_REFERENCE){
data = ((EntityReference)event).getDeclaration().getReplacementText();
}
else if(type == XMLEvent.COMMENT || type == XMLEvent.PROCESSING_INSTRUCTION){
//ignore
} else if(type == XMLEvent.START_ELEMENT) {
throw new XMLStreamException(
"elementGetText() function expects text only elment but START_ELEMENT was encountered.", event.getLocation());
}else if(type == XMLEvent.END_ELEMENT){
return "";
}
//create the string buffer and add initial data
StringBuffer buffer = new StringBuffer();
if(data != null && data.length() > 0 ) {
buffer.append(data);
}
//get the next event -- we should stop at END_ELEMENT but it can be any thing
//things are worse when implementing this function in XMLEventReader because
//there isn't any function called getText() which can get values for
//space, cdata, characters and entity reference
//nextEvent() would also set the last event.
event = nextEvent();
while(event.getEventType() != XMLEvent.END_ELEMENT){
if( type == XMLEvent.CHARACTERS || type == XMLEvent.SPACE ||
type == XMLEvent.CDATA){
data = event.asCharacters().getData();
}
else if(type == XMLEvent.ENTITY_REFERENCE){
data = ((EntityReference)event).getDeclaration().getReplacementText();
}
else if(type == XMLEvent.COMMENT || type == XMLEvent.PROCESSING_INSTRUCTION){
//ignore
} else if(type == XMLEvent.END_DOCUMENT) {
throw new XMLStreamException("unexpected end of document when reading element text content");
} else if(type == XMLEvent.START_ELEMENT) {
throw new XMLStreamException(
"elementGetText() function expects text only elment but START_ELEMENT was encountered.", event.getLocation());
} else {
throw new XMLStreamException(
"Unexpected event type "+ type, event.getLocation());
}
//add the data to the buffer
if(data != null && data.length() > 0 ) {
buffer.append(data);
}
event = nextEvent();
}
return buffer.toString();
}//if (fPeekedEvent != null)
//if there was no peeked, delegate everything to fXMLReader
//update the last event before returning the text
data = fXMLReader.getElementText();
fLastEvent = fXMLEventAllocator.allocate(fXMLReader);
return data;
}