xmlschemavalidator.java

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    // Schema Normalization

    private static final boolean DEBUG_NORMALIZATION = false;
    // temporary empty string buffer.
    private final XMLString fEmptyXMLStr = new XMLString(null, 0, -1);
    // temporary character buffer, and empty string buffer.
    private static final int BUFFER_SIZE = 20;
    private final XMLString fNormalizedStr = new XMLString();
    private boolean fFirstChunk = true;
    // got first chunk in characters() (SAX)
    private boolean fTrailing = false; // Previous chunk had a trailing space
    private short fWhiteSpace = -1; //whiteSpace: preserve/replace/collapse
    private boolean fUnionType = false;

    /** Schema grammar resolver. */
    private final XSGrammarBucket fGrammarBucket = new XSGrammarBucket();
    private final SubstitutionGroupHandler fSubGroupHandler = new SubstitutionGroupHandler(fGrammarBucket);

    /** the DV usd to convert xsi:type to a QName */
    // REVISIT: in new simple type design, make things in DVs static,
    //          so that we can QNameDV.getCompiledForm()
    private final XSSimpleType fQNameDV =
        (XSSimpleType) SchemaGrammar.SG_SchemaNS.getGlobalTypeDecl(SchemaSymbols.ATTVAL_QNAME);

    private final CMNodeFactory nodeFactory = new CMNodeFactory();
    /** used to build content models */
    // REVISIT: create decl pool, and pass it to each traversers
    private final CMBuilder fCMBuilder = new CMBuilder(nodeFactory);
    
    // Schema grammar loader
    private final XMLSchemaLoader fSchemaLoader =
        new XMLSchemaLoader(
                fXSIErrorReporter.fErrorReporter,
                fGrammarBucket,
                fSubGroupHandler,
                fCMBuilder);

    // state

    /** String representation of the validation root. */
    // REVISIT: what do we store here? QName, XPATH, some ID? use rawname now.
    private String fValidationRoot;

    /** Skip validation: anything below this level should be skipped */
    private int fSkipValidationDepth;

    /** anything above this level has validation_attempted != full */
    private int fNFullValidationDepth;

    /** anything above this level has validation_attempted != none */
    private int fNNoneValidationDepth;

    /** Element depth: -2: validator not in pipeline; >= -1 current depth. */
    private int fElementDepth;

    /** Seen sub elements. */
    private boolean fSubElement;

    /** Seen sub elements stack. */
    private boolean[] fSubElementStack = new boolean[INITIAL_STACK_SIZE];

    /** Current element declaration. */
    private XSElementDecl fCurrentElemDecl;

    /** Element decl stack. */
    private XSElementDecl[] fElemDeclStack = new XSElementDecl[INITIAL_STACK_SIZE];

    /** nil value of the current element */
    private boolean fNil;

    /** nil value stack */
    private boolean[] fNilStack = new boolean[INITIAL_STACK_SIZE];

    /** notation value of the current element */
    private XSNotationDecl fNotation;

    /** notation stack */
    private XSNotationDecl[] fNotationStack = new XSNotationDecl[INITIAL_STACK_SIZE];

    /** Current type. */
    private XSTypeDefinition fCurrentType;

    /** type stack. */
    private XSTypeDefinition[] fTypeStack = new XSTypeDefinition[INITIAL_STACK_SIZE];

    /** Current content model. */
    private XSCMValidator fCurrentCM;

    /** Content model stack. */
    private XSCMValidator[] fCMStack = new XSCMValidator[INITIAL_STACK_SIZE];

    /** the current state of the current content model */
    private int[] fCurrCMState;

    /** stack to hold content model states */
    private int[][] fCMStateStack = new int[INITIAL_STACK_SIZE][];

    /** whether the curret element is strictly assessed */
    private boolean fStrictAssess = true;

    /** strict assess stack */
    private boolean[] fStrictAssessStack = new boolean[INITIAL_STACK_SIZE];

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

    /** Whether need to append characters to fBuffer */
    private boolean fAppendBuffer = true;

    /** Did we see any character data? */
    private boolean fSawText = false;

    /** stack to record if we saw character data */
    private boolean[] fSawTextStack = new boolean[INITIAL_STACK_SIZE];

    /** Did we see non-whitespace character data? */
    private boolean fSawCharacters = false;

    /** Stack to record if we saw character data outside of element content*/
    private boolean[] fStringContent = new boolean[INITIAL_STACK_SIZE];

    /** temporary qname */
    private final QName fTempQName = new QName();

    /** temporary validated info */
    private ValidatedInfo fValidatedInfo = new ValidatedInfo();

    // used to validate default/fixed values against xsi:type
    // only need to check facets, so we set extraChecking to false (in reset)
    private ValidationState fState4XsiType = new ValidationState();

    // used to apply default/fixed values
    // only need to check id/idref/entity, so we set checkFacets to false
    private ValidationState fState4ApplyDefault = new ValidationState();

    // identity constraint information

    /**
     * Stack of active XPath matchers for identity constraints. All
     * active XPath matchers are notified of startElement
     * and endElement callbacks in order to perform their matches.
     * <p>
     * For each element with identity constraints, the selector of
     * each identity constraint is activated. When the selector matches
     * its XPath, then all the fields of the identity constraint are
     * activated.
     * <p>
     * <strong>Note:</strong> Once the activation scope is left, the
     * XPath matchers are automatically removed from the stack of
     * active matchers and no longer receive callbacks.
     */
    protected XPathMatcherStack fMatcherStack = new XPathMatcherStack();

    /** Cache of value stores for identity constraint fields. */
    protected ValueStoreCache fValueStoreCache = new ValueStoreCache();

    //
    // Constructors
    //

    /** Default constructor. */
    public XMLSchemaValidator() {
        fState4XsiType.setExtraChecking(false);
        fState4ApplyDefault.setFacetChecking(false);

    } // <init>()

    /*
     * 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 {


        fIdConstraint = false;
        //reset XSDDescription
        fLocationPairs.clear();

        // cleanup id table
        fValidationState.resetIDTables();

        //pass the component manager to the factory..
        nodeFactory.reset(componentManager);

        // reset schema loader
        fSchemaLoader.reset(componentManager);

        // initialize state
        fCurrentElemDecl = null;
        fCurrentCM = null;
        fCurrCMState = null;
        fSkipValidationDepth = -1;
        fNFullValidationDepth = -1;
        fNNoneValidationDepth = -1;
        fElementDepth = -1;
        fSubElement = false;
        fSchemaDynamicValidation = false;

        // datatype normalization
        fEntityRef = false;
        fInCDATA = false;

        fMatcherStack.clear();

        if (!fMayMatchFieldMap.isEmpty()) {
            // should only clear this if the last schema had identity constraints.
            fMayMatchFieldMap.clear();
        }

        // get error reporter
        fXSIErrorReporter.reset((XMLErrorReporter) componentManager.getProperty(ERROR_REPORTER));

        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);
            // Re-parse external schema location properties.
            XMLSchemaLoader.processExternalHints(
                fExternalSchemas,
                fExternalNoNamespaceSchema,
                fLocationPairs,
                fXSIErrorReporter.fErrorReporter);
            return;
        }


        // get symbol table. if it's a new one, add symbols to it.
        SymbolTable symbolTable = (SymbolTable) componentManager.getProperty(SYMBOL_TABLE);
        if (symbolTable != fSymbolTable) {
            fSymbolTable = symbolTable;
        }

        try {
            fDynamicValidation = componentManager.getFeature(DYNAMIC_VALIDATION);
        } catch (XMLConfigurationException e) {
            fDynamicValidation = false;
        }

        if (fDynamicValidation) {
            fDoValidation = true;
        } else {
            try {
                fDoValidation = componentManager.getFeature(VALIDATION);
            } catch (XMLConfigurationException e) {
                fDoValidation = false;
            }
        }

        if (fDoValidation) {
            try {
                fDoValidation = componentManager.getFeature(XMLSchemaValidator.SCHEMA_VALIDATION);
            } catch (XMLConfigurationException e) {
            }
        }

        try {
            fFullChecking = componentManager.getFeature(SCHEMA_FULL_CHECKING);
        } catch (XMLConfigurationException e) {
            fFullChecking = false;
        }

        try {
            fNormalizeData = componentManager.getFeature(NORMALIZE_DATA);
        } catch (XMLConfigurationException e) {
            fNormalizeData = false;
        }

        try {
            fSchemaElementDefault = componentManager.getFeature(SCHEMA_ELEMENT_DEFAULT);
        } catch (XMLConfigurationException e) {
            fSchemaElementDefault = false;
        }

        try {
            fAugPSVI = componentManager.getFeature(SCHEMA_AUGMENT_PSVI);
        } catch (XMLConfigurationException e) {
            fAugPSVI = true;
        }
        try {
            fSchemaType =
                (String) componentManager.getProperty(
                    Constants.JAXP_PROPERTY_PREFIX + Constants.SCHEMA_LANGUAGE);
        } catch (XMLConfigurationException e) {
            fSchemaType = null;
        }
        
        try {
            fUseGrammarPoolOnly = componentManager.getFeature(USE_GRAMMAR_POOL_ONLY);
        } 
        catch (XMLConfigurationException e) {
            fUseGrammarPoolOnly = false;
        }

        fEntityResolver = (XMLEntityResolver) componentManager.getProperty(ENTITY_MANAGER);

        fValidationManager = (ValidationManager) componentManager.getProperty(VALIDATION_MANAGER);
        fValidationManager.addValidationState(fValidationState);
        fValidationState.setSymbolTable(fSymbolTable);


        // get schema location properties
        try {
            fExternalSchemas = (String) componentManager.getProperty(SCHEMA_LOCATION);
            fExternalNoNamespaceSchema =
                (String) componentManager.getProperty(SCHEMA_NONS_LOCATION);
        } catch (XMLConfigurationException e) {
            fExternalSchemas = null;
            fExternalNoNamespaceSchema = null;
        }

        // store the external schema locations. they are set when reset is called,
        // so any other schemaLocation declaration for the same namespace will be
        // effectively ignored. becuase we choose to take first location hint
        // available for a particular namespace.
        XMLSchemaLoader.processExternalHints(
            fExternalSchemas,
            fExternalNoNamespaceSchema,
            fLocationPairs,
            fXSIErrorReporter.fErrorReporter);

        try {
            fJaxpSchemaSource = componentManager.getProperty(JAXP_SCHEMA_SOURCE);
        } catch (XMLConfigurationException e) {
            fJaxpSchemaSource = null;

        }

        // clear grammars, and put the one for schema namespace there
        try {
            fGrammarPool = (XMLGrammarPool) componentManager.getProperty(XMLGRAMMAR_POOL);