com.sun.xml.stream
Class XMLNSDocumentScannerImpl

java.lang.Object
  com.sun.xml.stream.XMLScanner
      com.sun.xml.stream.XMLDocumentFragmentScannerImpl
          com.sun.xml.stream.XMLDocumentScannerImpl
              com.sun.xml.stream.XMLNSDocumentScannerImpl

All Implemented Interfaces:

XMLEntityHandler, org.apache.xerces.xni.parser.XMLComponent, org.apache.xerces.xni.parser.XMLDocumentScanner, org.apache.xerces.xni.parser.XMLDocumentSource

public class XMLNSDocumentScannerImpl
extends XMLDocumentScannerImpl

This class adds the functionality of namespace processing. This class has been modified as per the new design which is more suited to efficiently build pull parser. Lot of improvements have been done and the code has been added to support stax functionality/features. This class scans an XML document, checks if document has a DTD, and if DTD is not found the scanner will remove the DTD Validator from the pipeline and perform namespace binding.

Version:

$Id: XMLNSDocumentScannerImpl.java,v 1.8 2009/11/20 21:07:25 joehw Exp $

Author:

Neeraj Bajaj, Sun Microsystems, Venugopal Rao K, Sun Microsystems, Elena Litani, IBM

Nested Class Summary

protected class

XMLNSDocumentScannerImpl.NSContentDriver Driver to handle content scanning.

Nested classes/interfaces inherited from class com.sun.xml.stream.XMLDocumentScannerImpl

XMLDocumentScannerImpl.ContentDriver, XMLDocumentScannerImpl.DTDDriver, XMLDocumentScannerImpl.PrologDriver, XMLDocumentScannerImpl.TrailingMiscDriver, XMLDocumentScannerImpl.XMLBufferListenerImpl, XMLDocumentScannerImpl.XMLDeclDriver

Nested classes/interfaces inherited from class com.sun.xml.stream.XMLDocumentFragmentScannerImpl

XMLDocumentFragmentScannerImpl.Driver, XMLDocumentFragmentScannerImpl.Element, XMLDocumentFragmentScannerImpl.ElementStack, XMLDocumentFragmentScannerImpl.ElementStack2, XMLDocumentFragmentScannerImpl.FragmentContentDriver

Field Summary

protected boolean

fPerformValidation If validating parser, make sure we report an error in the scanner if DTD grammar is missing.

Fields inherited from class com.sun.xml.stream.XMLDocumentScannerImpl

COMMENTSTRING, DISALLOW_DOCTYPE_DECL_FEATURE, DOCTYPE, DTD_SCANNER, fBindNamespaces, fDoctypeName, fDoctypePublicId, fDoctypeSystemId, fDTDDecl, fDTDDriver, fDTDScanner, fEndOfDocument, fEndPos, fLoadExternalDTD, fNamespaceContext, fPrologDriver, fReadingAttributes, fReadingDTD, fScanEndElement, fScannerBufferlistener, fScannerLastState, fSeenDoctypeDecl, fSeenInternalSubset, fStartPos, fTrailingMiscDriver, fXMLDeclDriver, LOAD_EXTERNAL_DTD, SCANNER_STATE_DTD_EXTERNAL, SCANNER_STATE_DTD_EXTERNAL_DECLS, SCANNER_STATE_DTD_INTERNAL_DECLS, SCANNER_STATE_NO_SUCH_ELEMENT_EXCEPTION, SCANNER_STATE_PROLOG, SCANNER_STATE_TRAILING_MISC, SCANNER_STATE_XML_DECL, VALIDATION_MANAGER

Fields inherited from class com.sun.xml.stream.XMLDocumentFragmentScannerImpl

cdata, DEBUG, DEBUG_COALESCE, DEBUG_CONTENT_SCANNING, DEBUG_NEXT, dtdGrammarUtil, endTag, fAdd, fAddDefaultAttr, fAttributeQName, fAttributes, fContentBuffer, fContentDriver, fCurrentElement, fDeclaredEncoding, fDisallowDoctype, fDocumentHandler, fDriver, fElementQName, fElementRawname, fElementStack, fElementStack2, fEntityStack, fEntityStore, fHasExternalDTD, fInScanContent, fIsCoalesce, fLastSectionWasCData, fLastSectionWasCharacterData, fLastSectionWasEntityReference, fMarkupDepth, fNamespaces, fNotifyBuiltInRefs, foundBuiltInRefs, fPIData, fPITarget, fReplaceEntityReferences, fReportCdataEvent, fScannerState, fScanToEnd, fShouldSkip, fSkip, fStandalone, fStandaloneSet, fStringBuffer, fStringBuffer2, fSupportExternalEntities, fTempString, fTempString2, fVersion, NAMESPACES, NOTIFY_BUILTIN_REFS, SCANNER_STATE_ATTRIBUTE, SCANNER_STATE_ATTRIBUTE_VALUE, SCANNER_STATE_BUILT_IN_REFS, SCANNER_STATE_CDATA, SCANNER_STATE_CHAR_REFERENCE, SCANNER_STATE_CHARACTER_DATA, SCANNER_STATE_COMMENT, SCANNER_STATE_CONTENT, SCANNER_STATE_DOCTYPE, SCANNER_STATE_END_ELEMENT_TAG, SCANNER_STATE_END_OF_INPUT, SCANNER_STATE_PI, SCANNER_STATE_REFERENCE, SCANNER_STATE_ROOT_ELEMENT, SCANNER_STATE_START_ELEMENT_TAG, SCANNER_STATE_START_OF_MARKUP, SCANNER_STATE_TERMINATED, SCANNER_STATE_TEXT_DECL, xmlDecl

Fields inherited from class com.sun.xml.stream.XMLScanner

attributeValueCache, DEBUG_ATTR_NORMALIZATION, ENTITY_MANAGER, ERROR_REPORTER, fAmpSymbol, fAposSymbol, fAttributeCacheInitDone, fAttributeCacheUsedCount, fCharRefLiteral, fEncodingSymbol, fEntityDepth, fEntityManager, fEntityScanner, fErrorReporter, fEvent, fGtSymbol, fLtSymbol, fNotifyCharRefs, fPropertyManager, fQuotSymbol, fReportEntity, fResourceIdentifier, fScanningAttribute, fStandaloneSymbol, fStringBufferIndex, fSymbolTable, fValidation, fVersionSymbol, NOTIFY_CHAR_REFS, stringBufferCache, SYMBOL_TABLE, VALIDATION

Constructor Summary

XMLNSDocumentScannerImpl()

Method Summary

protected XMLDocumentFragmentScannerImpl.Driver	createContentDriver() Creates a content driver.
java.lang.String	getCharacterEncodingScheme()
org.apache.xerces.util.XMLStringBuffer	getDTDDecl()
org.apache.xerces.xni.QName	getElementQName() Return the information about the element -- If it is EndELement, QName values are computed dynamically.
org.apache.xerces.xni.NamespaceContext	getNamespaceContext()
void	reset(PropertyManager propertyManager) Resets the fields of this scanner.
void	reset(org.apache.xerces.xni.parser.XMLComponentManager componentManager) Resets the component.
protected void	scanAttribute(org.apache.xerces.util.XMLAttributesImpl attributes) Scans an attribute.
protected int	scanEndElement() Scans an end element.
protected boolean	scanStartElement() Scans a start element.

Methods inherited from class com.sun.xml.stream.XMLDocumentScannerImpl

endEntity, getFeatureDefault, getPropertyDefault, getRecognizedFeatures, getRecognizedProperties, getScannerStateName, getScannetState, next, scanDoctypeDecl, setEndDTDScanState, setFeature, setInputSource, setProperty, startEntity

Methods inherited from class com.sun.xml.stream.XMLDocumentFragmentScannerImpl

getAttributeIterator, getCharacterData, getComment, getDocumentHandler, getDriverName, getEntityName, getPIData, getPITarget, hasAttributes, isStandAlone, scanAttribute, scanCDATASection, scanCharReference, scanComment, scanContent, scanDocument, scanEntityReference, scanPIData, scanXMLDeclOrTextDecl, setDocumentHandler, setDriver, setScannerState, skipElement, standaloneSet

Methods inherited from class com.sun.xml.stream.XMLScanner

getFeature, isInvalid, isInvalidLiteral, isValidNameChar, isValidNameStartChar, isValidNCName, normalizeWhitespace, reportFatalError, scanAttributeValue, scanCharReferenceValue, scanComment, scanExternalID, scanPI, scanPseudoAttribute, scanPubidLiteral, scanSurrogates, scanXMLDeclOrTextDecl, setPropertyManager, versionSupported

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

fPerformValidation

protected boolean fPerformValidation

If validating parser, make sure we report an error in the scanner if DTD grammar is missing.

Constructor Detail

XMLNSDocumentScannerImpl

public XMLNSDocumentScannerImpl()

Method Detail

reset

public void reset(PropertyManager propertyManager)

Resets the fields of this scanner.

Overrides:

reset in class XMLDocumentScannerImpl

getElementQName

public org.apache.xerces.xni.QName getElementQName()

Return the information about the element -- If it is EndELement, QName values are computed dynamically.

scanStartElement

protected boolean scanStartElement()
                            throws java.io.IOException,
                                   org.apache.xerces.xni.XNIException

Scans a start element. This method will handle the binding of namespace information and notifying the handler of the start of the element.

 [44] EmptyElemTag ::= '<' Name (S Attribute)* S? '/>'
 [40] STag ::= '<' Name (S Attribute)* S? '>'
 

Note: This method assumes that the leading '<' character has been consumed.

Note: This method uses the fElementQName and fAttributes variables. The contents of these variables will be destroyed. The caller should copy important information out of these variables before calling this method.

Overrides:

scanStartElement in class XMLDocumentFragmentScannerImpl

Returns:

True if element is empty. (i.e. It matches production [44].

Throws:

java.io.IOException

org.apache.xerces.xni.XNIException

scanAttribute

protected void scanAttribute(org.apache.xerces.util.XMLAttributesImpl attributes)
                      throws java.io.IOException,
                             org.apache.xerces.xni.XNIException

Scans an attribute.

 [41] Attribute ::= Name Eq AttValue
 

Note: This method assumes that the next character on the stream is the first character of the attribute name.

Note: This method uses the fAttributeQName and fQName variables. The contents of these variables will be destroyed.

Parameters:

attributes - The attributes list for the scanned attribute.

Throws:

java.io.IOException

org.apache.xerces.xni.XNIException

scanEndElement

protected int scanEndElement()
                      throws java.io.IOException,
                             org.apache.xerces.xni.XNIException

Scans an end element.

 [42] ETag ::= '</' Name S? '>'
 

Note: This method uses the fElementQName variable. The contents of this variable will be destroyed. The caller should copy the needed information out of this variable before calling this method.

Overrides:

scanEndElement in class XMLDocumentFragmentScannerImpl

Returns:

The element depth.

Throws:

java.io.IOException

org.apache.xerces.xni.XNIException

getNamespaceContext

public org.apache.xerces.xni.NamespaceContext getNamespaceContext()

reset

public void reset(org.apache.xerces.xni.parser.XMLComponentManager componentManager)
           throws org.apache.xerces.xni.parser.XMLConfigurationException

Description copied from class: XMLDocumentScannerImpl

Resets the component. The component can query the component manager about any features and properties that affect the operation of the component.

Specified by:

reset in interface org.apache.xerces.xni.parser.XMLComponent

Overrides:

reset in class XMLDocumentScannerImpl

Parameters:

componentManager - The component manager.

Throws:

org.apache.xerces.xni.parser.XMLConfigurationException

createContentDriver

protected XMLDocumentFragmentScannerImpl.Driver createContentDriver()

Creates a content driver.

Overrides:

createContentDriver in class XMLDocumentScannerImpl

getDTDDecl

public org.apache.xerces.util.XMLStringBuffer getDTDDecl()

getCharacterEncodingScheme

public java.lang.String getCharacterEncodingScheme()