xmldtdvalidator.java

java1.6众多例子参考

    private XMLEntityDecl fEntityDecl = new XMLEntityDecl();

    /** Temporary qualified name. */
    private QName fTempQName = new QName();

    /** Temporary string buffers. */
    private StringBuffer fBuffer = new StringBuffer();

    // symbols: general

    // attribute validators

    /** Datatype validator: ID. */
    protected DatatypeValidator fValID;

    /** Datatype validator: IDREF. */
    protected DatatypeValidator fValIDRef;

    /** Datatype validator: IDREFS. */
    protected DatatypeValidator fValIDRefs;

    /** Datatype validator: ENTITY. */
    protected DatatypeValidator fValENTITY;

    /** Datatype validator: ENTITIES. */
    protected DatatypeValidator fValENTITIES;

    /** Datatype validator: NMTOKEN. */
    protected DatatypeValidator fValNMTOKEN;

    /** Datatype validator: NMTOKENS. */
    protected DatatypeValidator fValNMTOKENS;

    /** Datatype validator: NOTATION. */
    protected DatatypeValidator fValNOTATION;

    // to check for duplicate ID or ANNOTATION attribute declare in
    // ATTLIST, and misc VCs

    //
    // Constructors
    //

    /** Default constructor. */
    public XMLDTDValidator() {

        // initialize data
        for (int i = 0; i < fElementQNamePartsStack.length; i++) {
            fElementQNamePartsStack[i] = new QName();
        }
        fGrammarBucket = new DTDGrammarBucket();

    } // <init>()

    DTDGrammarBucket getGrammarBucket() {
        return fGrammarBucket;
    } // getGrammarBucket():  DTDGrammarBucket

    //
    // XMLComponent methods
    //

    /*
     * Resets the component. The component can query the component manager
     * about any features and properties that affect the operation of the
     * component.
     * 
     * @param componentManager The component manager.
     *
     * @throws SAXException Thrown by component on finitialization error.
     *                      For example, if a feature or property is
     *                      required for the operation of the component, the
     *                      component manager may throw a 
     *                      SAXNotRecognizedException or a
     *                      SAXNotSupportedException.
     */
    public void reset(XMLComponentManager componentManager)
    throws XMLConfigurationException {

        // clear grammars
        fDTDGrammar = null;
        fSeenDoctypeDecl = false;
        fInCDATASection = false;
        // initialize state
        fSeenRootElement = false;
        fInElementContent = false;
        fCurrentElementIndex = -1;
        fCurrentContentSpecType = -1;

        fRootElement.clear();

		fValidationState.resetIDTables();
		
		fGrammarBucket.clear();
		fElementDepth = -1;                      
		fElementChildrenLength = 0;
        
        boolean parser_settings;
        try {
        	parser_settings = componentManager.getFeature(PARSER_SETTINGS);  	
        }
        catch (XMLConfigurationException e){
        	parser_settings = true;
        }
        
        if (!parser_settings){
        	// parser settings have not been changed
			fValidationManager.addValidationState(fValidationState);
        	return;
        }

        // sax features
        try {
            fNamespaces = componentManager.getFeature(NAMESPACES);
        }
        catch (XMLConfigurationException e) {
            fNamespaces = true;
        }
        try {
            fValidation = componentManager.getFeature(VALIDATION);
        }
        catch (XMLConfigurationException e) {
            fValidation = false;
        }
        try {
            fDTDValidation = !(componentManager.getFeature(Constants.XERCES_FEATURE_PREFIX + Constants.SCHEMA_VALIDATION_FEATURE));
        }
        catch (XMLConfigurationException e) {
            // must be in a schema-less configuration!
            fDTDValidation = true;
        }

        // Xerces features
        try {
            fDynamicValidation = componentManager.getFeature(DYNAMIC_VALIDATION);
        }
        catch (XMLConfigurationException e) {
            fDynamicValidation = false;
        }
        
        try {
            fWarnDuplicateAttdef = componentManager.getFeature(WARN_ON_DUPLICATE_ATTDEF);
        }
        catch (XMLConfigurationException e) {
            fWarnDuplicateAttdef = false;
        }
        
        try {
            fSchemaType = (String)componentManager.getProperty (Constants.JAXP_PROPERTY_PREFIX 
            + Constants.SCHEMA_LANGUAGE);           
        }
        catch (XMLConfigurationException e){
            fSchemaType = null;
        }

        fValidationManager= (ValidationManager)componentManager.getProperty(VALIDATION_MANAGER);
        fValidationManager.addValidationState(fValidationState);      
        fValidationState.setUsingNamespaces(fNamespaces);
        
        // get needed components
        fErrorReporter = (XMLErrorReporter)componentManager.getProperty(Constants.XERCES_PROPERTY_PREFIX+Constants.ERROR_REPORTER_PROPERTY);
        fSymbolTable = (SymbolTable)componentManager.getProperty(Constants.XERCES_PROPERTY_PREFIX+Constants.SYMBOL_TABLE_PROPERTY);
        try {
            fGrammarPool= (XMLGrammarPool)componentManager.getProperty(GRAMMAR_POOL);
        } catch (XMLConfigurationException e) {
            fGrammarPool = null;
        }

        fDatatypeValidatorFactory = (DTDDVFactory)componentManager.getProperty(Constants.XERCES_PROPERTY_PREFIX + Constants.DATATYPE_VALIDATOR_FACTORY_PROPERTY);
		init();

    } // reset(XMLComponentManager)

    /**
     * Returns a list of feature identifiers that are recognized by
     * this component. This method may return null if no features
     * are recognized by this component.
     */
    public String[] getRecognizedFeatures() {
        return (String[])(RECOGNIZED_FEATURES.clone());
    } // getRecognizedFeatures():String[]

    /**
     * Sets the state of a feature. This method is called by the component
     * manager any time after reset when a feature changes state. 
     * <p>
     * <strong>Note:</strong> Components should silently ignore features
     * that do not affect the operation of the component.
     * 
     * @param featureId The feature identifier.
     * @param state     The state of the feature.
     *
     * @throws SAXNotRecognizedException The component should not throw
     *                                   this exception.
     * @throws SAXNotSupportedException The component should not throw
     *                                  this exception.
     */
    public void setFeature(String featureId, boolean state)
    throws XMLConfigurationException {
    } // setFeature(String,boolean)

    /**
     * Returns a list of property identifiers that are recognized by
     * this component. This method may return null if no properties
     * are recognized by this component.
     */
    public String[] getRecognizedProperties() {
        return (String[])(RECOGNIZED_PROPERTIES.clone());
    } // getRecognizedProperties():String[]

    /**
     * Sets the value of a property. This method is called by the component
     * manager any time after reset when a property changes value. 
     * <p>
     * <strong>Note:</strong> Components should silently ignore properties
     * that do not affect the operation of the component.
     * 
     * @param propertyId The property identifier.
     * @param value      The value of the property.
     *
     * @throws SAXNotRecognizedException The component should not throw
     *                                   this exception.
     * @throws SAXNotSupportedException The component should not throw
     *                                  this exception.
     */
    public void setProperty(String propertyId, Object value)
    throws XMLConfigurationException {
    } // setProperty(String,Object)

    /** 
     * Returns the default state for a feature, or null if this
     * component does not want to report a default value for this
     * feature.
     *
     * @param featureId The feature identifier.
     *
     * @since Xerces 2.2.0
     */
    public Boolean getFeatureDefault(String featureId) {
        for (int i = 0; i < RECOGNIZED_FEATURES.length; i++) {
            if (RECOGNIZED_FEATURES[i].equals(featureId)) {
                return FEATURE_DEFAULTS[i];
            }
        }
        return null;
    } // getFeatureDefault(String):Boolean

    /** 
     * Returns the default state for a property, or null if this
     * component does not want to report a default value for this
     * property. 
     *
     * @param propertyId The property identifier.
     *
     * @since Xerces 2.2.0
     */
    public Object getPropertyDefault(String propertyId) {
        for (int i = 0; i < RECOGNIZED_PROPERTIES.length; i++) {
            if (RECOGNIZED_PROPERTIES[i].equals(propertyId)) {
                return PROPERTY_DEFAULTS[i];
            }
        }
        return null;
    } // getPropertyDefault(String):Object

    //
    // XMLDocumentSource methods
    //

    /** Sets the document handler to receive information about the document. */
    public void setDocumentHandler(XMLDocumentHandler documentHandler) {
        fDocumentHandler = documentHandler;
    } // setDocumentHandler(XMLDocumentHandler)

    /** Returns the document handler */
    public XMLDocumentHandler getDocumentHandler() {
        return fDocumentHandler;
    } // getDocumentHandler():  XMLDocumentHandler


    //
    // XMLDocumentHandler methods
    //

    /** Sets the document source */
    public void setDocumentSource(XMLDocumentSource source){
        fDocumentSource = source;
    } // setDocumentSource

    /** Returns the document source */
    public XMLDocumentSource getDocumentSource (){
        return fDocumentSource;
    } // getDocumentSource

    /**
     * The start of the document.
     *
     * @param locator The system identifier of the entity if the entity
     *                 is external, null otherwise.
     * @param encoding The auto-detected IANA encoding name of the entity
     *                 stream. This value will be null in those situations
     *                 where the entity encoding is not auto-detected (e.g.
     *                 internal entities or a document entity that is
     *                 parsed from a java.io.Reader).
     * @param namespaceContext
     *                 The namespace context in effect at the
     *                 start of this document.
     *                 This object represents the current context.
     *                 Implementors of this class are responsible
     *                 for copying the namespace bindings from the
     *                 the current context (and its parent contexts)
     *                 if that information is important.
     * @param augs   Additional information that may include infoset augmentations
     *
     * @throws XNIException Thrown by handler to signal an error.
     */
    public void startDocument(XMLLocator locator, String encoding, 
                              NamespaceContext namespaceContext, Augmentations augs) 
    throws XNIException {

        // call handlers
        // get initial grammars
        if(fGrammarPool != null) {
            Grammar [] grammars = fGrammarPool.retrieveInitialGrammarSet(XMLGrammarDescription.XML_DTD);
            for(int i = 0; i<grammars.length; i++) {
                fGrammarBucket.putGrammar((DTDGrammar)grammars[i]);
            }
        }
        fDocLocation = locator;
        fNamespaceContext = namespaceContext;