domparserimpl.java

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                !fConfiguration.getFeature(NORMALIZE_DATA) &&
                !fConfiguration.getFeature(CREATE_CDATA_NODES_FEATURE);
            return (infoset) ? Boolean.TRUE : Boolean.FALSE;
        }
        else if (name.equalsIgnoreCase(Constants.DOM_CDATA_SECTIONS)) {
            return (fConfiguration.getFeature(CREATE_CDATA_NODES_FEATURE))
                ? Boolean.TRUE : Boolean.FALSE;
        }
        else if (name.equalsIgnoreCase(Constants.DOM_CHECK_CHAR_NORMALIZATION ) ||
                 name.equalsIgnoreCase(Constants.DOM_NORMALIZE_CHARACTERS)){
            return Boolean.FALSE;
        }
        else if (name.equalsIgnoreCase(Constants.DOM_NAMESPACE_DECLARATIONS)
        || name.equalsIgnoreCase (Constants.DOM_WELLFORMED)
        || name.equalsIgnoreCase (Constants.DOM_IGNORE_UNKNOWN_CHARACTER_DENORMALIZATIONS)
        || name.equalsIgnoreCase (Constants.DOM_CANONICAL_FORM)
        || name.equalsIgnoreCase (Constants.DOM_SUPPORTED_MEDIATYPES_ONLY)
        || name.equalsIgnoreCase (Constants.DOM_SPLIT_CDATA)
        || name.equalsIgnoreCase (Constants.DOM_CHARSET_OVERRIDES_XML_ENCODING)) {
            return (fConfiguration.getFeature (name.toLowerCase(Locale.ENGLISH)))
            ? Boolean.TRUE
            : Boolean.FALSE;
        }
        else if (name.equalsIgnoreCase (Constants.DOM_ERROR_HANDLER)) {
            if (fErrorHandler != null) {
                return fErrorHandler.getErrorHandler ();
            }
            return null;
        }
        else if (name.equalsIgnoreCase (Constants.DOM_RESOURCE_RESOLVER)) {
            try {
                XMLEntityResolver entityResolver =
                (XMLEntityResolver) fConfiguration.getProperty (ENTITY_RESOLVER);
                if (entityResolver != null
                && entityResolver instanceof DOMEntityResolverWrapper) {
                    return ((DOMEntityResolverWrapper) entityResolver).getEntityResolver ();
                }
                return null;
            }
            catch (XMLConfigurationException e) {}
        }
        else if (name.equalsIgnoreCase (Constants.DOM_SCHEMA_TYPE)) {
            return fConfiguration.getProperty (
            Constants.JAXP_PROPERTY_PREFIX + Constants.SCHEMA_LANGUAGE);
        }
        else if (name.equalsIgnoreCase (Constants.DOM_SCHEMA_LOCATION)) {
            return fSchemaLocation;
        }
        else if (name.equalsIgnoreCase (SYMBOL_TABLE)){
            return fConfiguration.getProperty (SYMBOL_TABLE);
        }
        else if (name.equalsIgnoreCase (DOCUMENT_CLASS_NAME)) {
            return fConfiguration.getProperty (DOCUMENT_CLASS_NAME);
        }
        else {
            String msg =
            DOMMessageFormatter.formatMessage (
            DOMMessageFormatter.DOM_DOMAIN,
            "FEATURE_NOT_FOUND",
            new Object[] { name });
            throw new DOMException (DOMException.NOT_FOUND_ERR, msg);
        }
        return null;
    }

    public boolean canSetParameter (String name, Object value) {
    	if (value == null){
    		return true;
    	}
    	
        if(value instanceof Boolean){
            boolean state = ((Boolean)value).booleanValue ();
            if ( name.equalsIgnoreCase (Constants.DOM_SUPPORTED_MEDIATYPES_ONLY)
            || name.equalsIgnoreCase(Constants.DOM_NORMALIZE_CHARACTERS)
            || name.equalsIgnoreCase(Constants.DOM_CHECK_CHAR_NORMALIZATION )
            || name.equalsIgnoreCase (Constants.DOM_CANONICAL_FORM) ) {
                // true is not supported
                return (state) ? false : true;
            }
            else if (name.equalsIgnoreCase (Constants.DOM_WELLFORMED)
            || name.equalsIgnoreCase (Constants.DOM_IGNORE_UNKNOWN_CHARACTER_DENORMALIZATIONS)) {
                // false is not supported
                return (state) ? true : false;
            }
            else if (name.equalsIgnoreCase (Constants.DOM_CDATA_SECTIONS)
            || name.equalsIgnoreCase (Constants.DOM_CHARSET_OVERRIDES_XML_ENCODING)
            || name.equalsIgnoreCase (Constants.DOM_COMMENTS)
            || name.equalsIgnoreCase (Constants.DOM_DATATYPE_NORMALIZATION)
            || name.equalsIgnoreCase (Constants.DOM_DISALLOW_DOCTYPE)
            || name.equalsIgnoreCase (Constants.DOM_ENTITIES)
            || name.equalsIgnoreCase (Constants.DOM_INFOSET)
            || name.equalsIgnoreCase (Constants.DOM_NAMESPACES)
            || name.equalsIgnoreCase (Constants.DOM_NAMESPACE_DECLARATIONS)
            || name.equalsIgnoreCase (Constants.DOM_VALIDATE)
            || name.equalsIgnoreCase (Constants.DOM_VALIDATE_IF_SCHEMA)
            || name.equalsIgnoreCase (Constants.DOM_ELEMENT_CONTENT_WHITESPACE)
            || name.equalsIgnoreCase (Constants.DOM_XMLDECL)) {
                return true;
            }

            // Recognize Xerces features.
            try {
                fConfiguration.getFeature(name.toLowerCase(Locale.ENGLISH));
                return true;
            }
            catch (XMLConfigurationException e) {
                return false;
            }
        }
        else { // check properties
            if (name.equalsIgnoreCase (Constants.DOM_ERROR_HANDLER)) {
                if (value instanceof DOMErrorHandler || value == null) {
                    return true;
                }
                return false;
            }
            else if (name.equalsIgnoreCase (Constants.DOM_RESOURCE_RESOLVER)) {
                if (value instanceof LSResourceResolver || value == null) {
                    return true;
                }
                return false;
            }
            else if (name.equalsIgnoreCase (Constants.DOM_SCHEMA_TYPE)) {
                if ((value instanceof String
                && (value.equals (Constants.NS_XMLSCHEMA)
                || value.equals (Constants.NS_DTD))) || value == null) {
                    return true;
                }
                return false;
            }
            else if (name.equalsIgnoreCase (Constants.DOM_SCHEMA_LOCATION)) {
                if (value instanceof String || value == null)
                    return true;
                return false;
            }
            else if (name.equalsIgnoreCase (DOCUMENT_CLASS_NAME)){
                return true;
            }
            return false;
        }
    }

    /**
     *  DOM Level 3 CR - Experimental.
     *
     *  The list of the parameters supported by this
     * <code>DOMConfiguration</code> object and for which at least one value
     * can be set by the application. Note that this list can also contain
     * parameter names defined outside this specification.
     */
    public DOMStringList getParameterNames () {
        if (fRecognizedParameters == null){
            Vector parameters = new Vector();
            
            // REVISIT: add Xerces recognized properties/features
            parameters.add(Constants.DOM_NAMESPACES);
            parameters.add(Constants.DOM_CDATA_SECTIONS);
            parameters.add(Constants.DOM_CANONICAL_FORM);
            parameters.add(Constants.DOM_NAMESPACE_DECLARATIONS);
            parameters.add(Constants.DOM_SPLIT_CDATA);
            
            parameters.add(Constants.DOM_ENTITIES);
            parameters.add(Constants.DOM_VALIDATE_IF_SCHEMA);
            parameters.add(Constants.DOM_VALIDATE);
            parameters.add(Constants.DOM_DATATYPE_NORMALIZATION);
            
            parameters.add(Constants.DOM_CHARSET_OVERRIDES_XML_ENCODING);
            parameters.add(Constants.DOM_CHECK_CHAR_NORMALIZATION);
            parameters.add(Constants.DOM_SUPPORTED_MEDIATYPES_ONLY);
            parameters.add(Constants.DOM_IGNORE_UNKNOWN_CHARACTER_DENORMALIZATIONS);
            
            parameters.add(Constants.DOM_NORMALIZE_CHARACTERS);
            parameters.add(Constants.DOM_WELLFORMED);
            parameters.add(Constants.DOM_INFOSET);
            parameters.add(Constants.DOM_DISALLOW_DOCTYPE);
            parameters.add(Constants.DOM_ELEMENT_CONTENT_WHITESPACE);
            parameters.add(Constants.DOM_COMMENTS);
            
            parameters.add(Constants.DOM_ERROR_HANDLER);
            parameters.add(Constants.DOM_RESOURCE_RESOLVER);
            parameters.add(Constants.DOM_SCHEMA_LOCATION);
            parameters.add(Constants.DOM_SCHEMA_TYPE);
            
            fRecognizedParameters = new DOMStringListImpl(parameters);
            
        }
        
        return fRecognizedParameters;
    }

    /**
     * Parse an XML document from a location identified by an URI reference.
     * If the URI contains a fragment identifier (see section 4.1 in ), the
     * behavior is not defined by this specification.
     *
     */
    public Document parseURI (String uri) throws LSException {

        //If DOMParser insstance is already busy parsing another document when this
        // method is called, then raise INVALID_STATE_ERR according to DOM L3 LS spec
        if ( fBusy ) {
            String msg = DOMMessageFormatter.formatMessage (
            DOMMessageFormatter.DOM_DOMAIN,
            "INVALID_STATE_ERR",null);
            throw new DOMException ( DOMException.INVALID_STATE_ERR,msg);
        }

        XMLInputSource source = new XMLInputSource (null, uri, null);
        try {
            currentThread = Thread.currentThread();
			fBusy = true;
            parse (source);
            fBusy = false;
            if (abortNow && currentThread.isInterrupted()) {
                //reset interrupt state 
                abortNow = false;
                Thread.interrupted();
            }
        } catch (Exception e){
            fBusy = false;
            if (abortNow && currentThread.isInterrupted()) {
                Thread.interrupted();
            }
            if (abortNow) {
                abortNow = false;
                restoreHandlers();
                return null;
            }
            // Consume this exception if the user
            // issued an interrupt or an abort.
            if (e != abort) {
                if (!(e instanceof XMLParseException) && fErrorHandler != null) {
                    DOMErrorImpl error = new DOMErrorImpl ();
                    error.fException = e;
                    error.fMessage = e.getMessage ();
                    error.fSeverity = DOMError.SEVERITY_FATAL_ERROR;
                    fErrorHandler.getErrorHandler ().handleError (error);
                }
                if (DEBUG) {
                    e.printStackTrace ();
                }
                throw new LSException(LSException.PARSE_ERR, e.getMessage());
            }
        }
        return getDocument ();
    }

    /**
     * Parse an XML document from a resource identified by an
     * <code>LSInput</code>.
     *
     */
    public Document parse (LSInput is) throws LSException {

        // need to wrap the LSInput with an XMLInputSource
        XMLInputSource xmlInputSource = dom2xmlInputSource (is);
        if ( fBusy ) {
            String msg = DOMMessageFormatter.formatMessage (
            DOMMessageFormatter.DOM_DOMAIN,
            "INVALID_STATE_ERR",null);
            throw new DOMException ( DOMException.INVALID_STATE_ERR,msg);
        }

        try {
            currentThread = Thread.currentThread();
			fBusy = true;
            parse (xmlInputSource);
            fBusy = false;   
            if (abortNow && currentThread.isInterrupted()) {
                //reset interrupt state 
                abortNow = false;
                Thread.interrupted();
            }
        } catch (Exception e) {
            fBusy = false;
            if (abortNow && currentThread.isInterrupted()) {
                Thread.interrupted();
            }
            if (abortNow) {
                abortNow = false;
                restoreHandlers();
                return null;
            }
            // Consume this exception if the user
            // issued an interrupt or an abort.
            if (e != abort) {
                if (!(e instanceof XMLParseException) && fErrorHandler != null) {
                   DOMErrorImpl error = new DOMErrorImpl ();
                   error.fException = e;
                   error.fMessage = e.getMessage ();
                   error.fSeverity = DOMError.SEVERITY_FATAL_ERROR;
                   fErrorHandler.getErrorHandler().handleError (error);
                }
                if (DEBUG) {
                   e.printStackTrace ();
                }
                throw new LSException(LSException.PARSE_ERR, e.getMessage());
            }
        }
        return getDocument ();
    }


    private void restoreHandlers() {
        fConfiguration.setDocumentHandler(this);
        fConfiguration.setDTDHandler(this);
        fConfiguration.setDTDContentModelHandler(this);
    }

    /**
     *  Parse an XML document or fragment from a resource identified by an
     * <code>LSInput</code> and insert the content into an existing
     * document at the position epcified with the <code>contextNode</code>
     * and <code>action</code> arguments. When parsing the input stream the
     * context node is used for resolving unbound namespace prefixes.
     *
     * @param is  The <code>LSInput</code> from which the source
     *   document is to be read.
     * @param cnode  The <code>Node</code> that is used as the context for
     *   the data that is being parsed.
     * @param action This parameter describes which action should be taken
     *   between the new set of node being inserted and the existing
     *   children of the context node. The set of possible actions is
     *   defined above.
     * @exception DOMException
     *   HIERARCHY_REQUEST_ERR: Thrown if this action results in an invalid
     *   hierarchy (i.e. a Document with more than one document element).
     */