xincludehandler.java

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                    fXInclude11TextReader.setBufferSize(fBufferSize);
                }
            }
            return;
        }

    } // 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

    public void setDocumentHandler(XMLDocumentHandler handler) {
        fDocumentHandler = handler;
    }

    public XMLDocumentHandler getDocumentHandler() {
        return fDocumentHandler;
    }

    // XMLDocumentHandler methods

    /**
     * Event sent at the start of the document.
     *
     * A fatal error will occur here, if it is detected that this document has been processed
     * before.
     *
     * This event is only passed on to the document handler if this is the root document.
     */
    public void startDocument(
        XMLLocator locator,
        String encoding,
        NamespaceContext namespaceContext,
        Augmentations augs)
        throws XNIException {

        // we do this to ensure that the proper location is reported in errors
        // otherwise, the locator from the root document would always be used
        fErrorReporter.setDocumentLocator(locator);

        if (!isRootDocument()
            && fParentXIncludeHandler.searchForRecursiveIncludes(locator)) {
            reportFatalError(
                "RecursiveInclude",
                new Object[] { locator.getExpandedSystemId()});
        }

        if (!(namespaceContext instanceof XIncludeNamespaceSupport)) {
            reportFatalError("IncompatibleNamespaceContext");
        }
        fNamespaceContext = (XIncludeNamespaceSupport)namespaceContext;
        fDocLocation = locator;

        // initialize the current base URI
        fCurrentBaseURI.setBaseSystemId(locator.getBaseSystemId());
        fCurrentBaseURI.setExpandedSystemId(locator.getExpandedSystemId());
        fCurrentBaseURI.setLiteralSystemId(locator.getLiteralSystemId());
        saveBaseURI();
        if (augs == null) {
            augs = new AugmentationsImpl();
        }
        augs.putItem(CURRENT_BASE_URI, fCurrentBaseURI);
        
        // initialize the current language
        fCurrentLanguage = XMLSymbols.EMPTY_STRING;
        saveLanguage(fCurrentLanguage);

        if (isRootDocument() && fDocumentHandler != null) {
            fDocumentHandler.startDocument(
                locator,
                encoding,
                namespaceContext,
                augs);
        }
    }

    public void xmlDecl(
        String version,
        String encoding,
        String standalone,
        Augmentations augs)
        throws XNIException {
        fIsXML11 = "1.1".equals(version);
        if (isRootDocument() && fDocumentHandler != null) {
            fDocumentHandler.xmlDecl(version, encoding, standalone, augs);
        }
    }

    public void doctypeDecl(
        String rootElement,
        String publicId,
        String systemId,
        Augmentations augs)
        throws XNIException {
        if (isRootDocument() && fDocumentHandler != null) {
            fDocumentHandler.doctypeDecl(rootElement, publicId, systemId, augs);
        }
    }

    public void comment(XMLString text, Augmentations augs)
        throws XNIException {
        if (!fInDTD) {
            if (fDocumentHandler != null
                && getState() == STATE_NORMAL_PROCESSING) {
                fDepth++;
                augs = modifyAugmentations(augs);
                fDocumentHandler.comment(text, augs);
                fDepth--;
            }
        }
        else if (fDTDHandler != null) {
            fDTDHandler.comment(text, augs);
        }
    }

    public void processingInstruction(
        String target,
        XMLString data,
        Augmentations augs)
        throws XNIException {
        if (!fInDTD) {
            if (fDocumentHandler != null
                && getState() == STATE_NORMAL_PROCESSING) {
                // we need to change the depth like this so that modifyAugmentations() works
                fDepth++;
                augs = modifyAugmentations(augs);
                fDocumentHandler.processingInstruction(target, data, augs);
                fDepth--;
            }
        }
        else if (fDTDHandler != null) {
            fDTDHandler.processingInstruction(target, data, augs);
        }
    }

    public void startElement(
        QName element,
        XMLAttributes attributes,
        Augmentations augs)
        throws XNIException {
        fDepth++;
        int lastState = getState(fDepth - 1);
        // If the last two states were fallback then this must be a descendant of an include
        // child which isn't a fallback. The specification says we should ignore such elements
        // and their children.
        if (lastState == STATE_EXPECT_FALLBACK && getState(fDepth - 2) == STATE_EXPECT_FALLBACK) {
            setState(STATE_IGNORE);
        }
        else {
            setState(lastState);
        }

        // we process the xml:base and xml:lang attributes regardless
        // of what type of element it is.
        processXMLBaseAttributes(attributes);
        if (fFixupLanguage) {
            processXMLLangAttributes(attributes);
        }

        if (isIncludeElement(element)) {
            boolean success = this.handleIncludeElement(attributes);
            if (success) {
                setState(STATE_IGNORE);
            }
            else {
                setState(STATE_EXPECT_FALLBACK);
            }
        }
        else if (isFallbackElement(element)) {
            this.handleFallbackElement();
        }
        else if (hasXIncludeNamespace(element)) {
            if (getSawInclude(fDepth - 1)) {
                reportFatalError(
                    "IncludeChild",
                    new Object[] { element.rawname });
            }
            if (getSawFallback(fDepth - 1)) {
                reportFatalError(
                    "FallbackChild",
                    new Object[] { element.rawname });
            }
            if (getState() == STATE_NORMAL_PROCESSING) {
                if (fResultDepth++ == 0) {
                    checkMultipleRootElements();
                }
                if (fDocumentHandler != null) {
                    augs = modifyAugmentations(augs);
                    attributes = processAttributes(attributes);
                    fDocumentHandler.startElement(element, attributes, augs);
                }            
            }
        }
        else if (getState() == STATE_NORMAL_PROCESSING) {
            if (fResultDepth++ == 0) {
                checkMultipleRootElements();
            }
            if (fDocumentHandler != null) {
                augs = modifyAugmentations(augs);
                attributes = processAttributes(attributes);
                fDocumentHandler.startElement(element, attributes, augs);
            }            
        }
    }

    public void emptyElement(
        QName element,
        XMLAttributes attributes,
        Augmentations augs)
        throws XNIException {
        fDepth++;
        int lastState = getState(fDepth - 1);
        // If the last two states were fallback then this must be a descendant of an include
        // child which isn't a fallback. The specification says we should ignore such elements
        // and their children.
        if (lastState == STATE_EXPECT_FALLBACK && getState(fDepth - 2) == STATE_EXPECT_FALLBACK) {
            setState(STATE_IGNORE);
        }
        else {
            setState(lastState);
        }

        // we process the xml:base and xml:lang attributes regardless
        // of what type of element it is.
        processXMLBaseAttributes(attributes);
        if (fFixupLanguage) {
            processXMLLangAttributes(attributes);
        }

        if (isIncludeElement(element)) {
            boolean success = this.handleIncludeElement(attributes);
            if (success) {
                setState(STATE_IGNORE);
            }
            else {
                reportFatalError("NoFallback");
            }
        }
        else if (isFallbackElement(element)) {
            this.handleFallbackElement();
        }
        else if (hasXIncludeNamespace(element)) {
            if (getSawInclude(fDepth - 1)) {
                reportFatalError(
                    "IncludeChild",
                    new Object[] { element.rawname });
            }
            if (getSawFallback(fDepth - 1)) {
                reportFatalError(
                    "FallbackChild",
                    new Object[] { element.rawname });
            }
            if (getState() == STATE_NORMAL_PROCESSING) {
                if (fResultDepth == 0) {
                    checkMultipleRootElements();
                }
                if (fDocumentHandler != null) {
                    augs = modifyAugmentations(augs);
                    attributes = processAttributes(attributes);
                    fDocumentHandler.emptyElement(element, attributes, augs);
                }
            }
        }
        else if (getState() == STATE_NORMAL_PROCESSING) {
            if (fResultDepth == 0) {
                checkMultipleRootElements();
            }
            if (fDocumentHandler != null) {
                augs = modifyAugmentations(augs);
                attributes = processAttributes(attributes);
                fDocumentHandler.emptyElement(element, attributes, augs);
            }
        }
        // reset the out of scope stack elements
        setSawFallback(fDepth + 1, false);
        setSawInclude(fDepth, false);

        // check if an xml:base has gone out of scope
        if (fBaseURIScope.size() > 0 && fDepth == fBaseURIScope.peek()) {
            // pop the values from the stack
            restoreBaseURI();
        }
        fDepth--;
    }

    public void endElement(QName element, Augmentations augs)
        throws XNIException {

        if (isIncludeElement(element)) {
            // if we're ending an include element, and we were expecting a fallback
            // we check to see if the children of this include element contained a fallback
            if (getState() == STATE_EXPECT_FALLBACK
                && !getSawFallback(fDepth + 1)) {
                reportFatalError("NoFallback");
            }
        }
        if (isFallbackElement(element)) {
            // the state would have been set to normal processing if we were expecting the fallback element
            // now that we're done processing it, we should ignore all the other children of the include element
            if (getState() == STATE_NORMAL_PROCESSING) {
                setState(STATE_IGNORE);
            }
        }
        else if (getState() == STATE_NORMAL_PROCESSING) {