| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2001 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xerces" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 1999, International |
| * Business Machines, Inc., http://www.apache.org. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| package org.apache.xerces.parsers; |
| |
| import java.io.IOException; |
| |
| import org.apache.xerces.impl.Constants; |
| import org.apache.xerces.impl.XMLDocumentScanner; |
| import org.apache.xerces.impl.XMLDTDScanner; |
| import org.apache.xerces.impl.XMLEntityManager; |
| import org.apache.xerces.impl.XMLInputSource; |
| import org.apache.xerces.impl.XMLValidator; |
| import org.apache.xerces.impl.validation.DatatypeValidatorFactory; |
| import org.apache.xerces.impl.validation.GrammarPool; |
| import org.apache.xerces.impl.validation.datatypes.DatatypeValidatorFactoryImpl; |
| |
| import org.apache.xerces.util.SymbolTable; |
| |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.SAXNotRecognizedException; |
| import org.xml.sax.SAXNotSupportedException; |
| |
| /** |
| * This is a concrete vanilla XML parser class. It uses the abstract parser |
| * with a document scanner, a dtd scanner, and a validator, as well as a |
| * grammar pool. |
| * |
| * @author Stubs generated by DesignDoc on Mon Sep 11 11:10:57 PDT 2000 |
| * @author Arnaud Le Hors, IBM |
| * @author Andy Clark, IBM |
| * |
| * @version $Id$ */ |
| public class XMLDocumentParser |
| extends AbstractXMLDocumentParser { |
| |
| // |
| // Constants |
| // |
| |
| // debugging |
| |
| /** Set to true and recompile to print exception stack trace. */ |
| private static final boolean PRINT_EXCEPTION_STACK_TRACE = false; |
| |
| // |
| // Data |
| // |
| |
| // components (non-configurable) |
| |
| /** Grammar pool. */ |
| protected GrammarPool fGrammarPool; |
| |
| /** Datatype validator factory. */ |
| protected DatatypeValidatorFactory fDatatypeValidatorFactory; |
| |
| // components (configurable) |
| |
| /** Document scanner. */ |
| protected XMLDocumentScanner fScanner; |
| |
| /** DTD scanner. */ |
| protected XMLDTDScanner fDTDScanner; |
| |
| /** Validator. */ |
| protected XMLValidator fValidator; |
| |
| // |
| // Constructors |
| // |
| |
| /** |
| * Constructs a document parser using the default symbol table and grammar |
| * pool or the ones specified by the application (through the properties). |
| */ |
| public XMLDocumentParser() { |
| } // <init> |
| |
| /** |
| * Constructs a document parser using the specified symbol table. |
| */ |
| public XMLDocumentParser(SymbolTable symbolTable) { |
| super(symbolTable); |
| } // <init>(SymbolTable) |
| |
| /** |
| * Constructs a document parser using the specified symbol table and |
| * grammar pool. |
| */ |
| public XMLDocumentParser(SymbolTable symbolTable, |
| GrammarPool grammarPool) { |
| super(symbolTable); |
| |
| final String GRAMMAR_POOL = Constants.XERCES_PROPERTY_PREFIX + Constants.GRAMMAR_POOL_PROPERTY; |
| fGrammarPool = new GrammarPool(); |
| fProperties.put(GRAMMAR_POOL, fGrammarPool); |
| } |
| |
| /** |
| * Initialize the parser with all the components specified via the |
| * properties plus any missing ones. This method MUST be called before |
| * parsing. It is not called from the constructor though, so that the |
| * application can pass in any components it wants by presetting the |
| * relevant property. |
| */ |
| public void initialize() { |
| super.initialize(); |
| |
| // set default features |
| final String NAMESPACES = Constants.SAX_FEATURE_PREFIX + Constants.NAMESPACES_FEATURE; |
| fFeatures.put(NAMESPACES, Boolean.TRUE); |
| final String VALIDATION = Constants.SAX_FEATURE_PREFIX + Constants.VALIDATION_FEATURE; |
| fFeatures.put(VALIDATION, Boolean.FALSE); |
| final String EXTERNAL_GENERAL_ENTITIES = Constants.SAX_FEATURE_PREFIX + Constants.EXTERNAL_GENERAL_ENTITIES_FEATURE; |
| fFeatures.put(EXTERNAL_GENERAL_ENTITIES, Boolean.TRUE); |
| final String EXTERNAL_PARAMETER_ENTITIES = Constants.SAX_FEATURE_PREFIX + Constants.EXTERNAL_PARAMETER_ENTITIES_FEATURE; |
| fFeatures.put(EXTERNAL_PARAMETER_ENTITIES, Boolean.TRUE); |
| |
| // create and register missing components |
| final String GRAMMAR_POOL = Constants.XERCES_PROPERTY_PREFIX + Constants.GRAMMAR_POOL_PROPERTY; |
| fGrammarPool = (GrammarPool) fProperties.get(GRAMMAR_POOL); |
| if (fGrammarPool == null) { |
| fGrammarPool = new GrammarPool(); |
| fProperties.put(GRAMMAR_POOL, fGrammarPool); |
| } |
| |
| final String DOCUMENT_SCANNER = Constants.XERCES_PROPERTY_PREFIX + Constants.DOCUMENT_SCANNER_PROPERTY; |
| fScanner = (XMLDocumentScanner) fProperties.get(DOCUMENT_SCANNER); |
| if (fScanner == null) { |
| fScanner = createDocumentScanner(); |
| fProperties.put(DOCUMENT_SCANNER, fScanner); |
| } |
| fComponents.addElement(fScanner); |
| |
| final String DTD_SCANNER = Constants.XERCES_PROPERTY_PREFIX + Constants.DTD_SCANNER_PROPERTY; |
| fDTDScanner = (XMLDTDScanner) fProperties.get(DTD_SCANNER); |
| if (fDTDScanner == null) { |
| fDTDScanner = createDTDScanner(); |
| fProperties.put(DTD_SCANNER, fDTDScanner); |
| } |
| fComponents.addElement(fDTDScanner); |
| |
| final String VALIDATOR = Constants.XERCES_PROPERTY_PREFIX + Constants.VALIDATOR_PROPERTY; |
| fValidator = (XMLValidator) fProperties.get(VALIDATOR); |
| if (fValidator == null) { |
| fValidator = createValidator(); |
| fProperties.put(VALIDATOR, fValidator); |
| } |
| fComponents.addElement(fValidator); |
| |
| final String DATATYPE_VALIDATOR_FACTORY = Constants.XERCES_PROPERTY_PREFIX + Constants.DATATYPE_VALIDATOR_FACTORY_PROPERTY; |
| fDatatypeValidatorFactory = (DatatypeValidatorFactory) |
| fProperties.get(DATATYPE_VALIDATOR_FACTORY); |
| if (fDatatypeValidatorFactory == null) { |
| fDatatypeValidatorFactory = createDatatypeValidatorFactory(); |
| fProperties.put(DATATYPE_VALIDATOR_FACTORY, |
| fDatatypeValidatorFactory); |
| } |
| |
| } // initialize() |
| |
| // |
| // XMLParser methods |
| // |
| |
| /** |
| * Reset all components before parsing. |
| * |
| * @throws SAXException Thrown if an error occurs during initialization. |
| */ |
| protected void reset() throws SAXException { |
| |
| // setup document pipeline |
| fScanner.setDocumentHandler(fValidator); |
| fValidator.setDocumentHandler(this); |
| |
| // setup dtd pipeline |
| fDTDScanner.setDTDHandler(fValidator); |
| fValidator.setDTDHandler(this); |
| |
| // setup dtd content model pipeline |
| fDTDScanner.setDTDContentModelHandler(fValidator); |
| fValidator.setDTDContentModelHandler(this); |
| |
| // the following will reset every component |
| super.reset(); |
| |
| } // reset() |
| |
| // |
| // XMLReader methods |
| // |
| |
| /** |
| * Parses the specified input source. |
| * |
| * @param source The input source. |
| * |
| * @exception org.xml.sax.SAXException Throws exception on SAX error. |
| * @exception java.io.IOException Throws exception on i/o error. |
| */ |
| public void parse(InputSource source) |
| throws SAXException, IOException { |
| |
| if (fParseInProgress) { |
| // REVISIT - need to add new error message |
| throw new SAXException("FWK005 parse may not be called while parsing."); |
| } |
| else if (fNeedInitialize) { |
| initialize(); |
| } |
| |
| try { |
| reset(); |
| fEntityManager.setEntityHandler(fScanner); |
| fEntityManager.startDocumentEntity(new XMLInputSource(source)); |
| fScanner.scanDocument(true); |
| fParseInProgress = false; |
| } |
| catch (SAXException ex) { |
| fParseInProgress = false; |
| if (PRINT_EXCEPTION_STACK_TRACE) |
| ex.printStackTrace(); |
| throw ex; |
| } |
| catch (IOException ex) { |
| fParseInProgress = false; |
| if (PRINT_EXCEPTION_STACK_TRACE) |
| ex.printStackTrace(); |
| throw ex; |
| } |
| catch (Exception ex) { |
| fParseInProgress = false; |
| if (PRINT_EXCEPTION_STACK_TRACE) |
| ex.printStackTrace(); |
| throw new org.xml.sax.SAXException(ex); |
| } |
| |
| } // parse(InputSource) |
| |
| // |
| // XMLParser methods |
| // |
| |
| /** |
| * 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. |
| * |
| * @exception org.xml.sax.SAXNotRecognizedException If the |
| * requested feature is not known. |
| * @exception org.xml.sax.SAXNotSupportedException If the |
| * requested feature is known, but the requested |
| * state is not supported. |
| * @exception org.xml.sax.SAXException If there is any other |
| * problem fulfilling the request. |
| */ |
| protected void checkFeature(String featureId) |
| throws SAXNotRecognizedException, SAXNotSupportedException { |
| |
| // |
| // Xerces Features |
| // |
| |
| if (featureId.startsWith(Constants.XERCES_FEATURE_PREFIX)) { |
| String feature = featureId.substring(Constants.XERCES_FEATURE_PREFIX.length()); |
| // |
| // http://apache.org/xml/features/validation/schema |
| // Lets the user turn Schema validation support on/off. |
| // |
| if (feature.equals(Constants.SCHEMA_VALIDATION_FEATURE)) { |
| return; |
| } |
| // |
| // 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 (feature.equals(Constants.DYNAMIC_VALIDATION_FEATURE)) { |
| return; |
| } |
| // |
| // http://apache.org/xml/features/validation/default-attribute-values |
| // |
| if (feature.equals(Constants.DEFAULT_ATTRIBUTE_VALUES_FEATURE)) { |
| // REVISIT |
| throw new SAXNotSupportedException(featureId); |
| } |
| // |
| // http://apache.org/xml/features/validation/default-attribute-values |
| // |
| if (feature.equals(Constants.VALIDATE_CONTENT_MODELS_FEATURE)) { |
| // REVISIT |
| throw new SAXNotSupportedException(featureId); |
| } |
| // |
| // http://apache.org/xml/features/validation/nonvalidating/load-dtd-grammar |
| // |
| if (feature.equals(Constants.LOAD_DTD_GRAMMAR_FEATURE)) { |
| return; |
| } |
| // |
| // http://apache.org/xml/features/validation/nonvalidating/load-external-dtd |
| // |
| if (feature.equals(Constants.LOAD_EXTERNAL_DTD_FEATURE)) { |
| return; |
| } |
| |
| // |
| // http://apache.org/xml/features/validation/default-attribute-values |
| // |
| if (feature.equals(Constants.VALIDATE_DATATYPES_FEATURE)) { |
| throw new SAXNotSupportedException(featureId); |
| } |
| } |
| |
| // |
| // Not recognized |
| // |
| |
| super.checkFeature(featureId); |
| |
| } // checkFeature(String) |
| |
| /** |
| * 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. |
| * @exception org.xml.sax.SAXNotRecognizedException If the |
| * requested property is not known. |
| * @exception org.xml.sax.SAXNotSupportedException If the |
| * requested property is known, but the requested |
| * value is not supported. |
| * @exception org.xml.sax.SAXException If there is any other |
| * problem fulfilling the request. |
| */ |
| protected void checkProperty(String propertyId) |
| throws SAXNotRecognizedException, SAXNotSupportedException { |
| |
| // |
| // Xerces Properties |
| // |
| |
| if (propertyId.startsWith(Constants.XERCES_PROPERTY_PREFIX)) { |
| String property = propertyId.substring(Constants.XERCES_PROPERTY_PREFIX.length()); |
| if (property.equals(Constants.DTD_SCANNER_PROPERTY)) { |
| return; |
| } |
| } |
| |
| // |
| // Not recognized |
| // |
| |
| super.checkProperty(propertyId); |
| |
| } // checkProperty(String) |
| |
| // |
| // Protected methods |
| // |
| |
| // factory methods |
| |
| /** Create a document scanner. */ |
| protected XMLDocumentScanner createDocumentScanner() { |
| return new XMLDocumentScanner(); |
| } // createDocumentScanner():XMLDocumentScanner |
| |
| /** Create a DTD scanner. */ |
| protected XMLDTDScanner createDTDScanner() { |
| return new XMLDTDScanner(); |
| } // createDTDScanner():XMLDTDScanner |
| |
| /** Create a validator. */ |
| protected XMLValidator createValidator() { |
| return new XMLValidator(); |
| } // createValidator():XMLValidator |
| |
| /** Create a datatype validator factory. */ |
| protected DatatypeValidatorFactory createDatatypeValidatorFactory() { |
| return new DatatypeValidatorFactoryImpl(); |
| } // createDatatypeValidatorFactory():DatatypeValidatorFactory |
| |
| } // class XMLDocumentParser |
