saxparserimpl.java

来自「JAVA 所有包」· Java 代码 · 共 613 行 · 第 1/2 页

    public AttributePSVI getAttributePSVI(int index) {
        return ((PSVIProvider)xmlReader).getAttributePSVI(index);
    }

    public AttributePSVI getAttributePSVIByName(String uri, String localname) {
        return ((PSVIProvider)xmlReader).getAttributePSVIByName(uri, localname);
    }
    
    /**
     * Extension of SAXParser. This class tracks changes to 
     * features and properties to allow the parser to be reset to
     * its initial state.
     */
    public static class JAXPSAXParser extends com.sun.org.apache.xerces.internal.parsers.SAXParser {
        
        private HashMap fInitFeatures = new HashMap();
        private HashMap fInitProperties = new HashMap();
        private SAXParserImpl fSAXParser;

        public JAXPSAXParser() {
            super();
        }
        
        JAXPSAXParser(SAXParserImpl saxParser) {
            super();
            fSAXParser = saxParser;
        }
        
        /**
         * Override SAXParser's setFeature method to track the initial state
         * of features. This keeps us from affecting the performance of the
         * SAXParser when it is created with XMLReaderFactory.
         */
        public synchronized void setFeature(String name, boolean value)
            throws SAXNotRecognizedException, SAXNotSupportedException {
            if (name == null) {
                // TODO: Add localized error message.
                throw new NullPointerException(); 
            }
            if (name.equals(XMLConstants.FEATURE_SECURE_PROCESSING)) {
                try {
                    setProperty(SECURITY_MANAGER, value ? new SecurityManager() : null);
                }
                catch (SAXNotRecognizedException exc) {
                    // If the property is not supported 
                    // re-throw the exception if the value is true.
                    if (value) {
                        throw exc;
                    }
                }
                catch (SAXNotSupportedException exc) {
                    // If the property is not supported 
                    // re-throw the exception if the value is true.
                    if (value) {
                        throw exc;
                    }
                }
                return;
            }
            if (!fInitFeatures.containsKey(name)) {
                boolean current = super.getFeature(name);
                fInitFeatures.put(name, current ? Boolean.TRUE : Boolean.FALSE); 
            }
            /** Forward feature to the schema validator if there is one. **/
            if (fSAXParser != null && fSAXParser.fSchemaValidator != null) {
                setSchemaValidatorFeature(name, value);
            }
            super.setFeature(name, value);               
        }
        
        public synchronized boolean getFeature(String name)
            throws SAXNotRecognizedException, SAXNotSupportedException {
            if (name == null) {
                // TODO: Add localized error message.
                throw new NullPointerException(); 
            }
            if (name.equals(XMLConstants.FEATURE_SECURE_PROCESSING)) {
                try {
                    return (super.getProperty(SECURITY_MANAGER) != null);
                }
                // If the property is not supported the value must be false.
                catch (SAXException exc) {
                    return false;
                }
            }
            return super.getFeature(name);
        }
        
        /**
         * Override SAXParser's setProperty method to track the initial state
         * of properties. This keeps us from affecting the performance of the
         * SAXParser when it is created with XMLReaderFactory.
         */
        public synchronized void setProperty(String name, Object value)
            throws SAXNotRecognizedException, SAXNotSupportedException {
            if (name == null) {
                // TODO: Add localized error message.
                throw new NullPointerException(); 
            }
            if (fSAXParser != null) {
                // JAXP 1.2 support
                if (JAXP_SCHEMA_LANGUAGE.equals(name)) {
                    // The spec says if a schema is given via SAXParserFactory
                    // the JAXP 1.2 properties shouldn't be allowed.
                    if (fSAXParser.grammar != null) {
                        throw new SAXNotSupportedException(
                                SAXMessageFormatter.formatMessage(fConfiguration.getLocale(), "schema-already-specified", new Object[] {name}));
                    }
                    if ( W3C_XML_SCHEMA.equals(value) ) {
                        //None of the properties will take effect till the setValidating(true) has been called                                                        
                        if( fSAXParser.isValidating() ) {
                            fSAXParser.schemaLanguage = W3C_XML_SCHEMA;
                            setFeature(XMLSCHEMA_VALIDATION_FEATURE, true);
                            // this will allow the parser not to emit DTD-related
                            // errors, as the spec demands
                            if (!fInitProperties.containsKey(JAXP_SCHEMA_LANGUAGE)) {
                                fInitProperties.put(JAXP_SCHEMA_LANGUAGE, super.getProperty(JAXP_SCHEMA_LANGUAGE));
                            }
                            super.setProperty(JAXP_SCHEMA_LANGUAGE, W3C_XML_SCHEMA);
                        }
                        
                    } 
                    else if (value == null) {
                        fSAXParser.schemaLanguage = null;
                        setFeature(XMLSCHEMA_VALIDATION_FEATURE, false);
                    } 
                    else {
                        // REVISIT: It would be nice if we could format this message
                        // using a user specified locale as we do in the underlying
                        // XMLReader -- mrglavas
                        throw new SAXNotSupportedException(
                            SAXMessageFormatter.formatMessage(fConfiguration.getLocale(), "schema-not-supported", null));
                    }
                    return;
                } 
                else if (JAXP_SCHEMA_SOURCE.equals(name)) {
                    // The spec says if a schema is given via SAXParserFactory
                    // the JAXP 1.2 properties shouldn't be allowed.
                    if (fSAXParser.grammar != null) {
                        throw new SAXNotSupportedException(
                                SAXMessageFormatter.formatMessage(fConfiguration.getLocale(), "schema-already-specified", new Object[] {name}));
                    }
                    String val = (String)getProperty(JAXP_SCHEMA_LANGUAGE);
                    if ( val != null && W3C_XML_SCHEMA.equals(val) ) {
                        if (!fInitProperties.containsKey(JAXP_SCHEMA_SOURCE)) {
                            fInitProperties.put(JAXP_SCHEMA_SOURCE, super.getProperty(JAXP_SCHEMA_SOURCE));
                        }
                        super.setProperty(name, value);
                    }
                    else {
                        throw new SAXNotSupportedException(
                            SAXMessageFormatter.formatMessage(fConfiguration.getLocale(), 
                            "jaxp-order-not-supported", 
                            new Object[] {JAXP_SCHEMA_LANGUAGE, JAXP_SCHEMA_SOURCE}));
                    }
                    return;
                }
            }
            if (!fInitProperties.containsKey(name)) {
                fInitProperties.put(name, super.getProperty(name));
            }
            /** Forward property to the schema validator if there is one. **/
            if (fSAXParser != null && fSAXParser.fSchemaValidator != null) {
                setSchemaValidatorProperty(name, value);
            }
            super.setProperty(name, value);
        }
        
        public synchronized Object getProperty(String name)
            throws SAXNotRecognizedException, SAXNotSupportedException {
            if (name == null) {
                // TODO: Add localized error message.
                throw new NullPointerException();
            }
            if (fSAXParser != null && JAXP_SCHEMA_LANGUAGE.equals(name)) {
                // JAXP 1.2 support
                return fSAXParser.schemaLanguage;
            }
            return super.getProperty(name);
        }
        
        synchronized void restoreInitState()
            throws SAXNotRecognizedException, SAXNotSupportedException {
            Iterator iter;
            if (!fInitFeatures.isEmpty()) {
                iter = fInitFeatures.entrySet().iterator();
                while (iter.hasNext()) {
                    Map.Entry entry = (Map.Entry) iter.next();
                    String name = (String) entry.getKey();
                    boolean value = ((Boolean) entry.getValue()).booleanValue();
                    super.setFeature(name, value);
                }
                fInitFeatures.clear();
            }
            if (!fInitProperties.isEmpty()) {
                iter = fInitProperties.entrySet().iterator();
                while (iter.hasNext()) {
                    Map.Entry entry = (Map.Entry) iter.next();
                    String name = (String) entry.getKey();
                    Object value = entry.getValue();
                    super.setProperty(name, value);
                }
                fInitProperties.clear();
            }
        }
        
        public void parse(InputSource inputSource)
            throws SAXException, IOException {
            if (fSAXParser != null && fSAXParser.fSchemaValidator != null) {
                if (fSAXParser.fSchemaValidationManager != null) {
                    fSAXParser.fSchemaValidationManager.reset();
                }
                resetSchemaValidator();
            }
            super.parse(inputSource);
        }
        
        public void parse(String systemId) 
            throws SAXException, IOException {
            if (fSAXParser != null && fSAXParser.fSchemaValidator != null) {
                if (fSAXParser.fSchemaValidationManager != null) {
                    fSAXParser.fSchemaValidationManager.reset();
                }
                resetSchemaValidator();
            }
            super.parse(systemId);
        }
        
        XMLParserConfiguration getXMLParserConfiguration() {
            return fConfiguration;
        }
        
        void setFeature0(String name, boolean value)
            throws SAXNotRecognizedException, SAXNotSupportedException {
            super.setFeature(name, value);
        }
        
        boolean getFeature0(String name)
            throws SAXNotRecognizedException, SAXNotSupportedException {
            return super.getFeature(name);
        }
        
        void setProperty0(String name, Object value)
            throws SAXNotRecognizedException, SAXNotSupportedException {
            super.setProperty(name, value);
        }
        
        Object getProperty0(String name)
            throws SAXNotRecognizedException, SAXNotSupportedException {
            return super.getProperty(name);
        }
        
        private void setSchemaValidatorFeature(String name, boolean value)
            throws SAXNotRecognizedException, SAXNotSupportedException {
            try {
                fSAXParser.fSchemaValidator.setFeature(name, value);
            }
            // This should never be thrown from the schema validator.
            catch (XMLConfigurationException e) {
                String identifier = e.getIdentifier();
                if (e.getType() == XMLConfigurationException.NOT_RECOGNIZED) {
                    throw new SAXNotRecognizedException(
                        SAXMessageFormatter.formatMessage(fConfiguration.getLocale(), 
                        "feature-not-recognized", new Object [] {identifier}));
                }
                else {
                    throw new SAXNotSupportedException(
                        SAXMessageFormatter.formatMessage(fConfiguration.getLocale(), 
                        "feature-not-supported", new Object [] {identifier}));
                }
            }
        }
        
        private void setSchemaValidatorProperty(String name, Object value) 
            throws SAXNotRecognizedException, SAXNotSupportedException {
            try {
                fSAXParser.fSchemaValidator.setProperty(name, value);
            }
            // This should never be thrown from the schema validator.
            catch (XMLConfigurationException e) {
                String identifier = e.getIdentifier();
                if (e.getType() == XMLConfigurationException.NOT_RECOGNIZED) {
                    throw new SAXNotRecognizedException(
                        SAXMessageFormatter.formatMessage(fConfiguration.getLocale(), 
                        "property-not-recognized", new Object [] {identifier}));
                }
                else {
                    throw new SAXNotSupportedException(
                        SAXMessageFormatter.formatMessage(fConfiguration.getLocale(), 
                        "property-not-supported", new Object [] {identifier}));
                }
            }
        }
        
        private void resetSchemaValidator() throws SAXException {
            try {
                fSAXParser.fSchemaValidator.reset(fSAXParser.fSchemaValidatorComponentManager);
            }
            // This should never be thrown from the schema validator.
            catch (XMLConfigurationException e) {
                throw new SAXException(e);
            }
        }
    }
}