domvalidatorhelper.java

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                    fSchemaValidator.endCDATA(null); 
                }
                break;
            case Node.PROCESSING_INSTRUCTION_NODE:
                /** 
                 * The validator does nothing with processing instructions so bypass it.
                 * Send the ProcessingInstruction node directly to the result builder.
                 */
                if (fDOMValidatorHandler != null) {
                    fDOMValidatorHandler.processingInstruction((ProcessingInstruction) node);
                }
                break;
            case Node.COMMENT_NODE:
                /** 
                 * The validator does nothing with comments so bypass it.
                 * Send the Comment node directly to the result builder.
                 */
                if (fDOMValidatorHandler != null) {
                    fDOMValidatorHandler.comment((Comment) node);
                }
                break;
            case Node.DOCUMENT_TYPE_NODE:
                /** 
                 * Send the DocumentType node directly to the result builder.
                 */
                if (fDOMValidatorHandler != null) {
                    fDOMValidatorHandler.doctypeDecl((DocumentType) node);
                }
                break;
            default: // Ignore other node types.
                break;
        }
    }
    
    /** Do processing for the end of a node. */
    private void finishNode(Node node) {
        if (node.getNodeType() == Node.ELEMENT_NODE) {
            fCurrentElement = node;
            // end element
            fillQName(fElementQName, node);
            fSchemaValidator.endElement(fElementQName, null);
            // pop namespace context
            fNamespaceContext.popContext();
        }
    }
    
    /**
     * Extracts NamedNodeMap of entities. We need this to validate
     * elements and attributes of type xs:ENTITY, xs:ENTITIES or 
     * types dervied from them.
     */
    private void setupEntityMap(Document doc) {
        if (doc != null) {
            DocumentType docType = doc.getDoctype();
            if (docType != null) {
                fEntities = docType.getEntities();
                return;
            }
        }
        fEntities = null;
    }
    
    /**
     * Sets up handler for <code>DOMResult</code>.
     */
    private void setupDOMResultHandler(DOMSource source, DOMResult result) throws SAXException {
        // If there's no DOMResult, unset the validator handler
        if (result == null) {
            fDOMValidatorHandler = null;
            fSchemaValidator.setDocumentHandler(null);
            return;
        }
        final Node nodeResult = result.getNode();
        // If the source node and result node are the same use the DOMResultAugmentor.
        // Otherwise use the DOMResultBuilder.
        if (source.getNode() == nodeResult) {
            fDOMValidatorHandler = fDOMResultAugmentor;
            fDOMResultAugmentor.setDOMResult(result);
            fSchemaValidator.setDocumentHandler(fDOMResultAugmentor);
            return;
        }
        if (result.getNode() == null) {
            try {
                DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
                factory.setNamespaceAware(true);
                DocumentBuilder builder = factory.newDocumentBuilder();
                result.setNode(builder.newDocument());
            }
            catch (ParserConfigurationException e) {
                throw new SAXException(e);
            }
        }
        fDOMValidatorHandler = fDOMResultBuilder;
        fDOMResultBuilder.setDOMResult(result);
        fSchemaValidator.setDocumentHandler(fDOMResultBuilder);
    }
    
    private void fillQName(QName toFill, Node node) {
        final String prefix = node.getPrefix();
        final String localName = node.getLocalName();
        final String rawName = node.getNodeName();
        final String namespace = node.getNamespaceURI();
        toFill.prefix = (prefix != null) ? fSymbolTable.addSymbol(prefix) : XMLSymbols.EMPTY_STRING;
        toFill.localpart = (localName != null) ? fSymbolTable.addSymbol(localName) : XMLSymbols.EMPTY_STRING;
        toFill.rawname = (rawName != null) ? fSymbolTable.addSymbol(rawName) : XMLSymbols.EMPTY_STRING; 
        toFill.uri = (namespace != null && namespace.length() > 0) ? fSymbolTable.addSymbol(namespace) : null;
    }
    
    private void processAttributes(NamedNodeMap attrMap) {
        final int attrCount = attrMap.getLength();
        fAttributes.removeAllAttributes();
        for (int i = 0; i < attrCount; ++i) {
            Attr attr = (Attr) attrMap.item(i);
            String value = attr.getValue();
            if (value == null) {
                value = XMLSymbols.EMPTY_STRING;
            }
            fillQName(fAttributeQName, attr);
            // REVISIT: Assuming all attributes are of type CDATA. The actual type may not matter. -- mrglavas
            fAttributes.addAttributeNS(fAttributeQName, XMLSymbols.fCDATASymbol, value);
            fAttributes.setSpecified(i, attr.getSpecified());
            // REVISIT: Should we be looking at non-namespace attributes
            // for additional mappings? Should we detect illegal namespace
            // declarations and exclude them from the context? -- mrglavas
            if (fAttributeQName.uri == NamespaceContext.XMLNS_URI) {
                // process namespace attribute
                if (fAttributeQName.prefix == XMLSymbols.PREFIX_XMLNS) {
                    fNamespaceContext.declarePrefix(fAttributeQName.localpart, value.length() != 0 ? fSymbolTable.addSymbol(value) : null);
                }
                else {
                    fNamespaceContext.declarePrefix(XMLSymbols.EMPTY_STRING, value.length() != 0 ? fSymbolTable.addSymbol(value) : null);
                }
            }
        }
    }
    
    private void sendCharactersToValidator(String str) {
        if (str != null) {
            final int length = str.length();
            final int remainder = length & CHUNK_MASK;
            if (remainder > 0) {
                str.getChars(0, remainder, fCharBuffer, 0);
                fTempString.setValues(fCharBuffer, 0, remainder);
                fSchemaValidator.characters(fTempString, null);
            }
            int i = remainder;
            while (i < length) {
                str.getChars(i, i += CHUNK_SIZE, fCharBuffer, 0);
                fTempString.setValues(fCharBuffer, 0, CHUNK_SIZE);
                fSchemaValidator.characters(fTempString, null);
            }
        }
    }
    
    Node getCurrentElement() {
        return fCurrentElement;
    }
    
    /**
     * NamespaceContext for the DOMSource, includes context for ancestor nodes.
     */
    final class DOMNamespaceContext implements NamespaceContext {
        
        //
        // Data
        //

        /** 
         * Namespace binding information. This array is composed of a
         * series of tuples containing the namespace binding information:
         * &lt;prefix, uri&gt;.
         */
        protected String[] fNamespace = new String[16 * 2];

        /** The size of the namespace information array. */
        protected int fNamespaceSize = 0;
        
        /** 
         * Flag indicating whether the namespace context 
         * has been from the root node's ancestors.
         */
        protected boolean fDOMContextBuilt = false;
        
        //
        // Methods
        //

        public void pushContext() {
            fNamespaceContext.pushContext();
        }

        public void popContext() {
            fNamespaceContext.popContext();
        }

        public boolean declarePrefix(String prefix, String uri) {
            return fNamespaceContext.declarePrefix(prefix, uri);
        }

        public String getURI(String prefix) {
            String uri = fNamespaceContext.getURI(prefix);
            if (uri == null) {
                if (!fDOMContextBuilt) {
                    fillNamespaceContext();
                    fDOMContextBuilt = true;
                }
                if (fNamespaceSize > 0 && 
                    !fNamespaceContext.containsPrefix(prefix)) {
                    uri = getURI0(prefix);
                }
            }
            return uri;
        }

        public String getPrefix(String uri) {
            return fNamespaceContext.getPrefix(uri);
        }

        public int getDeclaredPrefixCount() {
            return fNamespaceContext.getDeclaredPrefixCount();
        }

        public String getDeclaredPrefixAt(int index) {
            return fNamespaceContext.getDeclaredPrefixAt(index);
        }

        public Enumeration getAllPrefixes() {
            return fNamespaceContext.getAllPrefixes();
        }

        public void reset() {
            fDOMContextBuilt = false;
            fNamespaceSize = 0; 
        }
        
        private void fillNamespaceContext() {
            if (fRoot != null) {
                Node currentNode = fRoot.getParentNode();
                while (currentNode != null) {
                    if (Node.ELEMENT_NODE == currentNode.getNodeType()) {
                        NamedNodeMap attributes = currentNode.getAttributes();
                        final int attrCount = attributes.getLength();
                        for (int i = 0; i < attrCount; ++i) {
                            Attr attr = (Attr) attributes.item(i);
                            String value = attr.getValue();
                            if (value == null) {
                                value = XMLSymbols.EMPTY_STRING;
                            }
                            fillQName(fAttributeQName, attr);
                            // REVISIT: Should we be looking at non-namespace attributes
                            // for additional mappings? Should we detect illegal namespace
                            // declarations and exclude them from the context? -- mrglavas
                            if (fAttributeQName.uri == NamespaceContext.XMLNS_URI) {
                                // process namespace attribute
                                if (fAttributeQName.prefix == XMLSymbols.PREFIX_XMLNS) {
                                    declarePrefix0(fAttributeQName.localpart, value.length() != 0 ? fSymbolTable.addSymbol(value) : null);
                                }
                                else {
                                    declarePrefix0(XMLSymbols.EMPTY_STRING, value.length() != 0 ? fSymbolTable.addSymbol(value) : null);
                                }
                            }
                        }
                        
                    }
                    currentNode = currentNode.getParentNode();
                }
            }
        }
        
        private void declarePrefix0(String prefix, String uri) {           
            // resize array, if needed
            if (fNamespaceSize == fNamespace.length) {
                String[] namespacearray = new String[fNamespaceSize * 2];
                System.arraycopy(fNamespace, 0, namespacearray, 0, fNamespaceSize);
                fNamespace = namespacearray;
            }

            // bind prefix to uri in current context
            fNamespace[fNamespaceSize++] = prefix;
            fNamespace[fNamespaceSize++] = uri;
        }
        
        private String getURI0(String prefix) {
            // find prefix in the DOM context
            for (int i = 0; i < fNamespaceSize; i += 2) {
                if (fNamespace[i] == prefix) {
                    return fNamespace[i + 1];
                }
            }
            // prefix not found
            return null;
        }
    }
    
} // DOMValidatorHelper