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SchemaParsingConfig.javaAPI DocJava SE 5 API27184Fri Aug 26 14:55:52 BST 2005com.sun.org.apache.xerces.internal.impl.xs.opti

SchemaParsingConfig

public class SchemaParsingConfig extends BasicParserConfiguration implements XMLPullParserConfiguration
author
Rahul Srivastava, Sun Microsystems Inc.
version
$Id: SchemaParsingConfig.java,v 1.5 2004/01/26 17:28:11 mrglavas Exp $

Fields Summary
protected static final String
WARN_ON_DUPLICATE_ATTDEF
Feature identifier: warn on duplicate attribute definition.
protected static final String
WARN_ON_UNDECLARED_ELEMDEF
Feature identifier: warn on undeclared element definition.
protected static final String
ALLOW_JAVA_ENCODINGS
Feature identifier: allow Java encodings.
protected static final String
CONTINUE_AFTER_FATAL_ERROR
Feature identifier: continue after fatal error.
protected static final String
LOAD_EXTERNAL_DTD
Feature identifier: load external DTD.
protected static final String
NOTIFY_BUILTIN_REFS
Feature identifier: notify built-in refereces.
protected static final String
NOTIFY_CHAR_REFS
Feature identifier: notify character refereces.
protected static final String
NORMALIZE_DATA
Feature identifier: expose schema normalized value
protected static final String
SCHEMA_ELEMENT_DEFAULT
Feature identifier: send element default value via characters()
protected static final String
ERROR_REPORTER
Property identifier: error reporter.
protected static final String
ENTITY_MANAGER
Property identifier: entity manager.
protected static final String
DOCUMENT_SCANNER
Property identifier document scanner:
protected static final String
DTD_SCANNER
Property identifier: DTD scanner.
protected static final String
XMLGRAMMAR_POOL
Property identifier: grammar pool.
protected static final String
DTD_VALIDATOR
Property identifier: DTD validator.
protected static final String
NAMESPACE_BINDER
Property identifier: namespace binder.
protected static final String
DATATYPE_VALIDATOR_FACTORY
Property identifier: datatype validator factory.
protected static final String
VALIDATION_MANAGER
protected static final String
SCHEMA_VALIDATOR
Property identifier: XML Schema validator.
private static final boolean
PRINT_EXCEPTION_STACK_TRACE
Set to true and recompile to print exception stack trace.
protected XMLGrammarPool
fGrammarPool
Grammar pool.
protected DTDDVFactory
fDatatypeValidatorFactory
Datatype validator factory.
protected XMLErrorReporter
fErrorReporter
Error reporter.
protected XMLEntityManager
fEntityManager
Entity manager.
protected XMLDocumentScanner
fScanner
Document scanner.
protected XMLInputSource
fInputSource
Input Source
protected XMLDTDScanner
fDTDScanner
DTD scanner.
protected SchemaDOMParser
fSchemaDOMParser
protected ValidationManager
fValidationManager
protected XMLLocator
fLocator
Locator
protected boolean
fParseInProgress
True if a parse is in progress. This state is needed because some features/properties cannot be set while parsing (e.g. validation and namespaces).
Constructors Summary
public SchemaParsingConfig()
Default constructor.


    //
    // Constructors
    //

       
      
        this(null, null, null);
public SchemaParsingConfig(SymbolTable symbolTable)
Constructs a parser configuration using the specified symbol table.

param
symbolTable The symbol table to use.

        this(symbolTable, null, null);
public SchemaParsingConfig(SymbolTable symbolTable, XMLGrammarPool grammarPool)
Constructs a parser configuration using the specified symbol table and grammar pool.

REVISIT: Grammar pool will be updated when the new validation engine is implemented.

param
symbolTable The symbol table to use.
param
grammarPool The grammar pool to use.

        this(symbolTable, grammarPool, null);
public SchemaParsingConfig(SymbolTable symbolTable, XMLGrammarPool grammarPool, XMLComponentManager parentSettings)
Constructs a parser configuration using the specified symbol table, grammar pool, and parent settings.

REVISIT: Grammar pool will be updated when the new validation engine is implemented.

param
symbolTable The symbol table to use.
param
grammarPool The grammar pool to use.
param
parentSettings The parent settings.

        super(symbolTable, parentSettings);

        // add default recognized features
        final String[] recognizedFeatures = {
            PARSER_SETTINGS, WARN_ON_DUPLICATE_ATTDEF,   WARN_ON_UNDECLARED_ELEMDEF,
            ALLOW_JAVA_ENCODINGS,       CONTINUE_AFTER_FATAL_ERROR,
            LOAD_EXTERNAL_DTD,          NOTIFY_BUILTIN_REFS,
            NOTIFY_CHAR_REFS
        };
        addRecognizedFeatures(recognizedFeatures);
        fFeatures.put(PARSER_SETTINGS, Boolean.TRUE);
        // set state for default features
        fFeatures.put(WARN_ON_DUPLICATE_ATTDEF, Boolean.FALSE);
        //setFeature(WARN_ON_DUPLICATE_ENTITYDEF, false);
        fFeatures.put(WARN_ON_UNDECLARED_ELEMDEF, Boolean.FALSE);
        fFeatures.put(ALLOW_JAVA_ENCODINGS, Boolean.FALSE);
        fFeatures.put(CONTINUE_AFTER_FATAL_ERROR, Boolean.FALSE);
        fFeatures.put(LOAD_EXTERNAL_DTD, Boolean.TRUE);
        fFeatures.put(NOTIFY_BUILTIN_REFS, Boolean.FALSE);
        fFeatures.put(NOTIFY_CHAR_REFS, Boolean.FALSE);

        // add default recognized properties
        final String[] recognizedProperties = {
            ERROR_REPORTER,             
            ENTITY_MANAGER, 
            DOCUMENT_SCANNER,
            DTD_SCANNER,
            DTD_VALIDATOR,
            NAMESPACE_BINDER,
            XMLGRAMMAR_POOL,   
            DATATYPE_VALIDATOR_FACTORY,
            VALIDATION_MANAGER
        };
        addRecognizedProperties(recognizedProperties);
    
        fGrammarPool = grammarPool;
        if(fGrammarPool != null){
            setProperty(XMLGRAMMAR_POOL, fGrammarPool);
        }

        fEntityManager = new XMLEntityManager();
        fProperties.put(ENTITY_MANAGER, fEntityManager);
        addComponent(fEntityManager);

        fErrorReporter = new XMLErrorReporter();
        fErrorReporter.setDocumentLocator(fEntityManager.getEntityScanner());
        fProperties.put(ERROR_REPORTER, fErrorReporter);
        addComponent(fErrorReporter);

        fScanner = new XMLNSDocumentScannerImpl();
        fProperties.put(DOCUMENT_SCANNER, fScanner);
        addComponent((XMLComponent)fScanner);

        fDTDScanner = new XMLDTDScannerImpl();
        fProperties.put(DTD_SCANNER, fDTDScanner);
        addComponent((XMLComponent)fDTDScanner);

        
        fDatatypeValidatorFactory = DTDDVFactory.getInstance();;
        fProperties.put(DATATYPE_VALIDATOR_FACTORY,
                        fDatatypeValidatorFactory);
        
        fValidationManager = new ValidationManager();
        fProperties.put(VALIDATION_MANAGER, fValidationManager);

        // add message formatters
        if (fErrorReporter.getMessageFormatter(XMLMessageFormatter.XML_DOMAIN) == null) {
            XMLMessageFormatter xmft = new XMLMessageFormatter();
            fErrorReporter.putMessageFormatter(XMLMessageFormatter.XML_DOMAIN, xmft);
            fErrorReporter.putMessageFormatter(XMLMessageFormatter.XMLNS_DOMAIN, xmft);
        }
        
        if (fErrorReporter.getMessageFormatter(XSMessageFormatter.SCHEMA_DOMAIN) == null) {
            XSMessageFormatter xmft = new XSMessageFormatter();
            fErrorReporter.putMessageFormatter(XSMessageFormatter.SCHEMA_DOMAIN, xmft);
        }

        // set locale
        try {
            setLocale(Locale.getDefault()); 
        }
        catch (XNIException e) {
            // do nothing
            // REVISIT: What is the right thing to do? -Ac
        }
Methods Summary
protected voidcheckFeature(java.lang.String featureId)
Check a feature. If feature is know and supported, this method simply returns. Otherwise, the appropriate exception is thrown.

param
featureId The unique identifier (URI) of the feature.
throws
XMLConfigurationException Thrown for configuration error. In general, components should only throw this exception if it is really a critical error.


        //
        // Xerces Features
        //

        if (featureId.startsWith(Constants.XERCES_FEATURE_PREFIX)) {
            final int suffixLength = featureId.length() - Constants.XERCES_FEATURE_PREFIX.length();
            
            //
            // http://apache.org/xml/features/validation/dynamic
            //   Allows the parser to validate a document only when it
            //   contains a grammar. Validation is turned on/off based
            //   on each document instance, automatically.
            //
            if (suffixLength == Constants.DYNAMIC_VALIDATION_FEATURE.length() && 
                featureId.endsWith(Constants.DYNAMIC_VALIDATION_FEATURE)) {
                return;
            }
            //
            // http://apache.org/xml/features/validation/default-attribute-values
            //
            if (suffixLength == Constants.DEFAULT_ATTRIBUTE_VALUES_FEATURE.length() && 
                featureId.endsWith(Constants.DEFAULT_ATTRIBUTE_VALUES_FEATURE)) {
                // REVISIT
                short type = XMLConfigurationException.NOT_SUPPORTED;
                throw new XMLConfigurationException(type, featureId);
            }
            //
            // http://apache.org/xml/features/validation/default-attribute-values
            //
            if (suffixLength == Constants.VALIDATE_CONTENT_MODELS_FEATURE.length() && 
                featureId.endsWith(Constants.VALIDATE_CONTENT_MODELS_FEATURE)) {
                // REVISIT
                short type = XMLConfigurationException.NOT_SUPPORTED;
                throw new XMLConfigurationException(type, featureId);
            }
            //
            // http://apache.org/xml/features/validation/nonvalidating/load-dtd-grammar
            //
            if (suffixLength == Constants.LOAD_DTD_GRAMMAR_FEATURE.length() && 
                featureId.endsWith(Constants.LOAD_DTD_GRAMMAR_FEATURE)) {
                return;
            }
            //
            // http://apache.org/xml/features/validation/nonvalidating/load-external-dtd
            //
            if (suffixLength == Constants.LOAD_EXTERNAL_DTD_FEATURE.length() && 
                featureId.endsWith(Constants.LOAD_EXTERNAL_DTD_FEATURE)) {
                return;
            }

            //
            // http://apache.org/xml/features/validation/default-attribute-values
            //
            if (suffixLength == Constants.VALIDATE_DATATYPES_FEATURE.length() &&
                featureId.endsWith(Constants.VALIDATE_DATATYPES_FEATURE)) {
                short type = XMLConfigurationException.NOT_SUPPORTED;
                throw new XMLConfigurationException(type, featureId);
            }
        }

        //
        // Not recognized
        //

        super.checkFeature(featureId);
protected voidcheckProperty(java.lang.String propertyId)
Check a property. If the property is know and supported, this method simply returns. Otherwise, the appropriate exception is thrown.

param
propertyId The unique identifier (URI) of the property being set.
throws
XMLConfigurationException Thrown for configuration error. In general, components should only throw this exception if it is really a critical error.


        //
        // Xerces Properties
        //

        if (propertyId.startsWith(Constants.XERCES_PROPERTY_PREFIX)) {
            final int suffixLength = propertyId.length() - Constants.XERCES_PROPERTY_PREFIX.length();
        	
            if (suffixLength == Constants.DTD_SCANNER_PROPERTY.length() && 
                propertyId.endsWith(Constants.DTD_SCANNER_PROPERTY)) {
                return;
            }
        }

        if (propertyId.startsWith(Constants.JAXP_PROPERTY_PREFIX)) {
            final int suffixLength = propertyId.length() - Constants.JAXP_PROPERTY_PREFIX.length();
        	
            if (suffixLength == Constants.SCHEMA_SOURCE.length() && 
                propertyId.endsWith(Constants.SCHEMA_SOURCE)) {
                return;
            }
        }

        //
        // Not recognized
        //

        super.checkProperty(propertyId);
public voidcleanup()
If the application decides to terminate parsing before the xml document is fully parsed, the application should call this method to free any resource allocated during parsing. For example, close all opened streams.

        fEntityManager.closeReaders();
protected voidconfigurePipeline()
Configures the pipeline.


        // setup document pipeline
        fScanner.setDocumentHandler(fDocumentHandler);
        fDocumentHandler.setDocumentSource(fScanner);
        fLastComponent = fScanner;

        // setup dtd pipeline
        if (fDTDScanner != null) {
                fDTDScanner.setDTDHandler(fDTDHandler);
                fDTDScanner.setDTDContentModelHandler(fDTDContentModelHandler);
        }
public org.w3c.dom.DocumentgetDocument()
Returns the Document object.

        return fSchemaDOMParser.getDocument();
public booleanparse(boolean complete)
Parses the document in a pull parsing fashion.

param
complete True if the pull parser should parse the remaining document completely.
returns
True if there is more document to parse.
exception
XNIException Any XNI exception, possibly wrapping another exception.
exception
IOException An IO exception from the parser, possibly from a byte stream or character stream supplied by the parser.
see
#setInputSource

        //
        // reset and configure pipeline and set InputSource.
        if (fInputSource !=null) {
            try {
                // resets and sets the pipeline.
                reset();
                fScanner.setInputSource(fInputSource);
                fInputSource = null;
            } 
            catch (XNIException ex) {
                if (PRINT_EXCEPTION_STACK_TRACE)
                    ex.printStackTrace();
                throw ex;
            } 
            catch (IOException ex) {
                if (PRINT_EXCEPTION_STACK_TRACE)
                    ex.printStackTrace();
                throw ex;
            } 
            catch (RuntimeException ex) {
                if (PRINT_EXCEPTION_STACK_TRACE)
                    ex.printStackTrace();
                throw ex;
            }
            catch (Exception ex) {
                if (PRINT_EXCEPTION_STACK_TRACE)
                    ex.printStackTrace();
                throw new XNIException(ex);
            }
        }

        try {
            return fScanner.scanDocument(complete);
        } 
        catch (XNIException ex) {
            if (PRINT_EXCEPTION_STACK_TRACE)
                ex.printStackTrace();
            throw ex;
        } 
        catch (IOException ex) {
            if (PRINT_EXCEPTION_STACK_TRACE)
                ex.printStackTrace();
            throw ex;
        } 
        catch (RuntimeException ex) {
            if (PRINT_EXCEPTION_STACK_TRACE)
                ex.printStackTrace();
            throw ex;
        }
        catch (Exception ex) {
            if (PRINT_EXCEPTION_STACK_TRACE)
                ex.printStackTrace();
            throw new XNIException(ex);
        }
public voidparse(com.sun.org.apache.xerces.internal.xni.parser.XMLInputSource source)
Parses the specified input source.

param
source The input source.
exception
XNIException Throws exception on XNI error.
exception
java.io.IOException Throws exception on i/o error.


        if (fParseInProgress) {
            // REVISIT - need to add new error message
            throw new XNIException("FWK005 parse may not be called while parsing.");
        }
        fParseInProgress = true;

        try {
            setInputSource(source);
            parse(true);
        } 
        catch (XNIException ex) {
            if (PRINT_EXCEPTION_STACK_TRACE)
                ex.printStackTrace();
            throw ex;
        } 
        catch (IOException ex) {
            if (PRINT_EXCEPTION_STACK_TRACE)
                ex.printStackTrace();
            throw ex;
        }
        catch (RuntimeException ex) {
            if (PRINT_EXCEPTION_STACK_TRACE)
                ex.printStackTrace();
            throw ex;
        }              
        catch (Exception ex) {
            if (PRINT_EXCEPTION_STACK_TRACE)
                ex.printStackTrace();
            throw new XNIException(ex);
        }
        finally {
            fParseInProgress = false;
            // close all streams opened by xerces
            this.cleanup();
        }
public voidreset()
Reset all components before parsing.

throws
XNIException Thrown if an error occurs during initialization.


        // set handlers
        if (fSchemaDOMParser == null)
            fSchemaDOMParser = new SchemaDOMParser(fErrorReporter);
        fDocumentHandler = fSchemaDOMParser;
        fDTDHandler = fSchemaDOMParser;
        fDTDContentModelHandler = fSchemaDOMParser;

        // configure the pipeline and initialize the components
        configurePipeline();
        super.reset();
public voidresetNodePool()

        // REVISIT: to implement: introduce a node pool to reuse DTM nodes.
        //          reset this pool here.
public voidsetInputSource(com.sun.org.apache.xerces.internal.xni.parser.XMLInputSource inputSource)
Sets the input source for the document to parse.

param
inputSource The document's input source.
exception
XMLConfigurationException Thrown if there is a configuration error when initializing the parser.
exception
IOException Thrown on I/O error.
see
#parse(boolean)

        
        // REVISIT: this method used to reset all the components and
        //          construct the pipeline. Now reset() is called
        //          in parse (boolean) just before we parse the document
        //          Should this method still throw exceptions..?

        fInputSource = inputSource;
public voidsetLocale(java.util.Locale locale)
Set the locale to use for messages.

param
locale The locale object to use for localization of messages.
exception
XNIException Thrown if the parser does not support the specified locale.

        super.setLocale(locale);
        fErrorReporter.setLocale(locale);