xml11dtdconfiguration.java

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/*
 * Copyright 2004 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.sun.org.apache.xerces.internal.parsers;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Locale;

import com.sun.org.apache.xerces.internal.impl.Constants;
import com.sun.org.apache.xerces.internal.impl.XML11DTDScannerImpl;
import com.sun.org.apache.xerces.internal.impl.XML11DocumentScannerImpl;
import com.sun.org.apache.xerces.internal.impl.XML11NSDocumentScannerImpl;
import com.sun.org.apache.xerces.internal.impl.XMLDTDScannerImpl;
import com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl;
import com.sun.org.apache.xerces.internal.impl.XMLEntityHandler;
import com.sun.org.apache.xerces.internal.impl.XMLEntityManager;
import com.sun.org.apache.xerces.internal.impl.XMLErrorReporter;
import com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl;
import com.sun.org.apache.xerces.internal.impl.XMLVersionDetector;
import com.sun.org.apache.xerces.internal.impl.dtd.XML11DTDProcessor;
import com.sun.org.apache.xerces.internal.impl.dtd.XML11DTDValidator;
import com.sun.org.apache.xerces.internal.impl.dtd.XML11NSDTDValidator;
import com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDProcessor;
import com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator;
import com.sun.org.apache.xerces.internal.impl.dtd.XMLNSDTDValidator;
import com.sun.org.apache.xerces.internal.impl.dv.DTDDVFactory;
import com.sun.org.apache.xerces.internal.impl.msg.XMLMessageFormatter;
import com.sun.org.apache.xerces.internal.impl.validation.ValidationManager;
import com.sun.org.apache.xerces.internal.util.ParserConfigurationSettings;
import com.sun.org.apache.xerces.internal.util.SymbolTable;
import com.sun.org.apache.xerces.internal.xni.XMLDTDContentModelHandler;
import com.sun.org.apache.xerces.internal.xni.XMLDTDHandler;
import com.sun.org.apache.xerces.internal.xni.XMLDocumentHandler;
import com.sun.org.apache.xerces.internal.xni.XMLLocator;
import com.sun.org.apache.xerces.internal.xni.XNIException;
import com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarPool;
import com.sun.org.apache.xerces.internal.xni.parser.XMLComponent;
import com.sun.org.apache.xerces.internal.xni.parser.XMLComponentManager;
import com.sun.org.apache.xerces.internal.xni.parser.XMLConfigurationException;
import com.sun.org.apache.xerces.internal.xni.parser.XMLDTDScanner;
import com.sun.org.apache.xerces.internal.xni.parser.XMLDocumentScanner;
import com.sun.org.apache.xerces.internal.xni.parser.XMLDocumentSource;
import com.sun.org.apache.xerces.internal.xni.parser.XMLEntityResolver;
import com.sun.org.apache.xerces.internal.xni.parser.XMLErrorHandler;
import com.sun.org.apache.xerces.internal.xni.parser.XMLInputSource;
import com.sun.org.apache.xerces.internal.xni.parser.XMLPullParserConfiguration;

/**
 * This class is the DTD-only parser configuration 
 * used to parse XML 1.0 and XML 1.1 documents.
 *
 * <p>
 * This class recognizes the following features and properties:
 * <ul>
 * <li>Features
 *  <ul>
 *   <li>http://xml.org/sax/features/validation</li>
 *   <li>http://xml.org/sax/features/namespaces</li>
 *   <li>http://xml.org/sax/features/external-general-entities</li>
 *   <li>http://xml.org/sax/features/external-parameter-entities</li>
 *   <li>http://apache.org/xml/features/continue-after-fatal-error</li>
 *   <li>http://apache.org/xml/features/load-external-dtd</li>
 *  </ul>
 * <li>Properties
 *  <ul>
 *   <li>http://xml.org/sax/properties/xml-string</li>
 *   <li>http://apache.org/xml/properties/internal/symbol-table</li>
 *   <li>http://apache.org/xml/properties/internal/error-handler</li>
 *   <li>http://apache.org/xml/properties/internal/entity-resolver</li>
 *   <li>http://apache.org/xml/properties/internal/error-reporter</li>
 *   <li>http://apache.org/xml/properties/internal/entity-manager</li>
 *   <li>http://apache.org/xml/properties/internal/document-scanner</li>
 *   <li>http://apache.org/xml/properties/internal/dtd-scanner</li>
 *   <li>http://apache.org/xml/properties/internal/grammar-pool</li>
 *   <li>http://apache.org/xml/properties/internal/validator/dtd</li>
 *   <li>http://apache.org/xml/properties/internal/datatype-validator-factory</li>
 *  </ul>
 * </ul>
 * @author Elena Litani, IBM
 * @author Neil Graham, IBM
 * @author Michael Glavassevich, IBM
 * @author John Kim, IBM
 *
 * @version $Id: XML11DTDConfiguration.java,v 1.1.2.1 2005/08/01 03:37:44 jeffsuttor Exp $
 */
public class XML11DTDConfiguration extends ParserConfigurationSettings
    implements XMLPullParserConfiguration, XML11Configurable {

    //
    // Constants
    //
    protected final static String XML11_DATATYPE_VALIDATOR_FACTORY =
        "com.sun.org.apache.xerces.internal.impl.dv.dtd.XML11DTDDVFactoryImpl";

    // feature identifiers
    
    /** Feature identifier: validation. */
    protected static final String VALIDATION =
        Constants.SAX_FEATURE_PREFIX + Constants.VALIDATION_FEATURE;
    
    /** Feature identifier: namespaces. */
    protected static final String NAMESPACES =
        Constants.SAX_FEATURE_PREFIX + Constants.NAMESPACES_FEATURE;
    
    /** Feature identifier: external general entities. */
    protected static final String EXTERNAL_GENERAL_ENTITIES =
        Constants.SAX_FEATURE_PREFIX + Constants.EXTERNAL_GENERAL_ENTITIES_FEATURE;
    
    /** Feature identifier: external parameter entities. */
    protected static final String EXTERNAL_PARAMETER_ENTITIES =
        Constants.SAX_FEATURE_PREFIX + Constants.EXTERNAL_PARAMETER_ENTITIES_FEATURE;
    
    /** Feature identifier: continue after fatal error. */
    protected static final String CONTINUE_AFTER_FATAL_ERROR =
        Constants.XERCES_FEATURE_PREFIX + Constants.CONTINUE_AFTER_FATAL_ERROR_FEATURE;
    
    /** Feature identifier: load external DTD. */
    protected static final String LOAD_EXTERNAL_DTD =
        Constants.XERCES_FEATURE_PREFIX + Constants.LOAD_EXTERNAL_DTD_FEATURE;
    
    // property identifiers

	/** Property identifier: xml string. */
	protected static final String XML_STRING = 
		Constants.SAX_PROPERTY_PREFIX + Constants.XML_STRING_PROPERTY;

	/** Property identifier: symbol table. */
	protected static final String SYMBOL_TABLE = 
		Constants.XERCES_PROPERTY_PREFIX + Constants.SYMBOL_TABLE_PROPERTY;

	/** Property identifier: error handler. */
	protected static final String ERROR_HANDLER = 
		Constants.XERCES_PROPERTY_PREFIX + Constants.ERROR_HANDLER_PROPERTY;

	/** Property identifier: entity resolver. */
	protected static final String ENTITY_RESOLVER = 
		Constants.XERCES_PROPERTY_PREFIX + Constants.ENTITY_RESOLVER_PROPERTY;

    /** Property identifier: error reporter. */
    protected static final String ERROR_REPORTER =
        Constants.XERCES_PROPERTY_PREFIX + Constants.ERROR_REPORTER_PROPERTY;

    /** Property identifier: entity manager. */
    protected static final String ENTITY_MANAGER =
        Constants.XERCES_PROPERTY_PREFIX + Constants.ENTITY_MANAGER_PROPERTY;

    /** Property identifier document scanner: */
    protected static final String DOCUMENT_SCANNER =
        Constants.XERCES_PROPERTY_PREFIX + Constants.DOCUMENT_SCANNER_PROPERTY;

    /** Property identifier: DTD scanner. */
    protected static final String DTD_SCANNER =
        Constants.XERCES_PROPERTY_PREFIX + Constants.DTD_SCANNER_PROPERTY;

    /** Property identifier: grammar pool. */
    protected static final String XMLGRAMMAR_POOL =
        Constants.XERCES_PROPERTY_PREFIX + Constants.XMLGRAMMAR_POOL_PROPERTY;

    /** Property identifier: DTD loader. */
    protected static final String DTD_PROCESSOR =
        Constants.XERCES_PROPERTY_PREFIX + Constants.DTD_PROCESSOR_PROPERTY;

    /** Property identifier: DTD validator. */
    protected static final String DTD_VALIDATOR =
        Constants.XERCES_PROPERTY_PREFIX + Constants.DTD_VALIDATOR_PROPERTY;

    /** Property identifier: namespace binder. */
    protected static final String NAMESPACE_BINDER =
        Constants.XERCES_PROPERTY_PREFIX + Constants.NAMESPACE_BINDER_PROPERTY;

    /** Property identifier: datatype validator factory. */
    protected static final String DATATYPE_VALIDATOR_FACTORY =
        Constants.XERCES_PROPERTY_PREFIX + Constants.DATATYPE_VALIDATOR_FACTORY_PROPERTY;

    protected static final String VALIDATION_MANAGER =
        Constants.XERCES_PROPERTY_PREFIX + Constants.VALIDATION_MANAGER_PROPERTY;

    /** Property identifier: JAXP schema language / DOM schema-type. */
    protected static final String JAXP_SCHEMA_LANGUAGE =
        Constants.JAXP_PROPERTY_PREFIX + Constants.SCHEMA_LANGUAGE; 

    /** Property identifier: JAXP schema source/ DOM schema-location. */
    protected static final String JAXP_SCHEMA_SOURCE =
        Constants.JAXP_PROPERTY_PREFIX + Constants.SCHEMA_SOURCE; 

    // debugging

    /** Set to true and recompile to print exception stack trace. */
    protected static final boolean PRINT_EXCEPTION_STACK_TRACE = false;

    // 
    // Data
    //
    protected SymbolTable fSymbolTable;
    protected XMLInputSource fInputSource;
    protected ValidationManager fValidationManager;
    protected XMLVersionDetector fVersionDetector;
    protected XMLLocator fLocator;
    protected Locale fLocale;
    
    /** XML 1.0 Components. */
    protected ArrayList fComponents;
    
    /** XML 1.1. Components. */
    protected ArrayList fXML11Components = null;
    
    /** Common components: XMLEntityManager, XMLErrorReporter */
    protected ArrayList fCommonComponents = null;
    
    /** The document handler. */
    protected XMLDocumentHandler fDocumentHandler;
    
    /** The DTD handler. */
    protected XMLDTDHandler fDTDHandler;
    
    /** The DTD content model handler. */
    protected XMLDTDContentModelHandler fDTDContentModelHandler;
    
    /** Last component in the document pipeline */     
    protected XMLDocumentSource fLastComponent;
    
    /** 
     * 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).
     */
    protected boolean fParseInProgress = false;
    
    /** 
     * fConfigUpdated is set to true if there has been any change to the configuration settings, 
     * i.e a feature or a property was changed.
     */
    protected boolean fConfigUpdated = false;
    
    //
    // XML 1.0 components
    //
    
    /** The XML 1.0 Datatype validator factory. */
    protected DTDDVFactory fDatatypeValidatorFactory;
    
    /** The XML 1.0 Document scanner that does namespace binding. */
    protected XMLNSDocumentScannerImpl fNamespaceScanner;
    
    /** The XML 1.0 Non-namespace implementation of scanner */
    protected XMLDocumentScannerImpl fNonNSScanner;
    
    /** The XML 1.0 DTD Validator: binds namespaces */
    protected XMLDTDValidator fDTDValidator;
    
    /** The XML 1.0 DTD Validator that does not bind namespaces */
    protected XMLDTDValidator fNonNSDTDValidator;
    
    /** The XML 1.0 DTD scanner. */
    protected XMLDTDScanner fDTDScanner;
    
    /** The XML 1.0 DTD Processor . */
    protected XMLDTDProcessor fDTDProcessor;
    
    //
    // XML 1.1 components
    //
    
    /** The XML 1.1 datatype factory. **/
    protected DTDDVFactory fXML11DatatypeFactory = null;
    
    /** The XML 1.1 document scanner that does namespace binding. **/
    protected XML11NSDocumentScannerImpl fXML11NSDocScanner = null;
    
    /** The XML 1.1 document scanner that does not do namespace binding. **/
    protected XML11DocumentScannerImpl fXML11DocScanner = null;
    
    /** The XML 1.1 DTD validator that does namespace binding. **/
    protected XML11NSDTDValidator fXML11NSDTDValidator = null;
    
    /** The XML 1.1 DTD validator that does not do namespace binding. **/
    protected XML11DTDValidator fXML11DTDValidator = null;
    
    /** The XML 1.1 DTD scanner. **/
    protected XML11DTDScannerImpl fXML11DTDScanner = null;
    
    /** The XML 1.1 DTD processor. **/
    protected XML11DTDProcessor fXML11DTDProcessor = null;

    //
    // Common components
    //

    /** Grammar pool. */
    protected XMLGrammarPool fGrammarPool;

    /** Error reporter. */
    protected XMLErrorReporter fErrorReporter;

    /** Entity manager. */
    protected XMLEntityManager fEntityManager;

    /** Current scanner */
    protected XMLDocumentScanner fCurrentScanner;
    
    /** Current Datatype validator factory. */
    protected DTDDVFactory fCurrentDVFactory;
    
    /** Current DTD scanner. */
    protected XMLDTDScanner fCurrentDTDScanner;

    /** Flag indiciating whether XML11 components have been initialized. */
    private boolean f11Initialized = false;

    //
    // Constructors
    //

    /** Default constructor. */
    public XML11DTDConfiguration() {
        this(null, null, null);
    } // <init>()

    /** 
     * Constructs a parser configuration using the specified symbol table.