domconfigurationimpl.java

来自「JAVA 所有包」· Java 代码 · 共 1,073 行 · 第 1/3 页

/*
 * Copyright 2001-2004 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.dom;

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

import org.w3c.dom.DOMConfiguration;
import org.w3c.dom.DOMErrorHandler;
import org.w3c.dom.DOMStringList;

import com.sun.org.apache.xerces.internal.impl.Constants;
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.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.DOMEntityResolverWrapper;
import com.sun.org.apache.xerces.internal.util.DOMErrorHandlerWrapper;
import com.sun.org.apache.xerces.internal.util.MessageFormatter;
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.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.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.XMLParserConfiguration;
import org.w3c.dom.DOMException;
import org.w3c.dom.ls.LSResourceResolver;



/**
 * Xerces implementation of DOMConfiguration that maintains a table of recognized parameters.
 * 
 * @xerces.internal
 *
 * @author Elena Litani, IBM
 * @author Neeraj Bajaj, Sun Microsystems.
 * @version $Id: DOMConfigurationImpl.java,v 1.2.6.1 2005/08/30 13:08:25 sunithareddy Exp $
 */
public class DOMConfigurationImpl extends ParserConfigurationSettings
    implements XMLParserConfiguration, DOMConfiguration {

    //
    // Constants
    //

    // feature identifiers

    /** Feature identifier: validation. */
    protected static final String XERCES_VALIDATION =
        Constants.SAX_FEATURE_PREFIX + Constants.VALIDATION_FEATURE;

    /** Feature identifier: namespaces. */
    protected static final String XERCES_NAMESPACES =
        Constants.SAX_FEATURE_PREFIX + Constants.NAMESPACES_FEATURE;

    protected static final String SCHEMA =
        Constants.XERCES_FEATURE_PREFIX + Constants.SCHEMA_VALIDATION_FEATURE;
    
    protected static final String SCHEMA_FULL_CHECKING =
        Constants.XERCES_FEATURE_PREFIX + Constants.SCHEMA_FULL_CHECKING;

    protected static final String DYNAMIC_VALIDATION =
        Constants.XERCES_FEATURE_PREFIX + Constants.DYNAMIC_VALIDATION_FEATURE;

    protected static final String NORMALIZE_DATA =
        Constants.XERCES_FEATURE_PREFIX + Constants.SCHEMA_NORMALIZED_VALUE;

    /** sending psvi in the pipeline */
    protected static final String SEND_PSVI =
        Constants.XERCES_FEATURE_PREFIX + Constants.SCHEMA_AUGMENT_PSVI;

    protected final static String DTD_VALIDATOR_FACTORY_PROPERTY = 
    	Constants.XERCES_PROPERTY_PREFIX + Constants.DATATYPE_VALIDATOR_FACTORY_PROPERTY;
    
    // property identifiers

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

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

    /** 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 id: Grammar pool*/
    protected static final String GRAMMAR_POOL =
    Constants.XERCES_PROPERTY_PREFIX + Constants.XMLGRAMMAR_POOL_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: 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;

    protected static final String VALIDATION_MANAGER =
        Constants.XERCES_PROPERTY_PREFIX + Constants.VALIDATION_MANAGER_PROPERTY;
    //
    // Data
    //
    XMLDocumentHandler fDocumentHandler;

    /** Normalization features*/
    protected short features = 0;

    protected final static short NAMESPACES          = 0x1<<0;
    protected final static short DTNORMALIZATION     = 0x1<<1;
    protected final static short ENTITIES            = 0x1<<2;
    protected final static short CDATA               = 0x1<<3;
    protected final static short SPLITCDATA          = 0x1<<4;
    protected final static short COMMENTS            = 0x1<<5;
    protected final static short VALIDATE            = 0x1<<6;
    protected final static short PSVI                = 0x1<<7;
    protected final static short WELLFORMED          = 0x1<<8;
    protected final static short NSDECL              = 0x1<<9;

    protected final static short INFOSET_TRUE_PARAMS = NAMESPACES | COMMENTS | WELLFORMED | NSDECL;
    protected final static short INFOSET_FALSE_PARAMS = ENTITIES | DTNORMALIZATION | CDATA;
    protected final static short INFOSET_MASK = INFOSET_TRUE_PARAMS | INFOSET_FALSE_PARAMS;

    // components

    /** Symbol table. */
    protected SymbolTable fSymbolTable;

    /** Components. */
    protected ArrayList fComponents;

    protected ValidationManager fValidationManager;

    /** Locale. */
    protected Locale fLocale;

    /** Error reporter */
    protected XMLErrorReporter fErrorReporter;

    protected final DOMErrorHandlerWrapper fErrorHandlerWrapper =
                new DOMErrorHandlerWrapper();

    // private data

    private DOMStringList fRecognizedParameters;


    //
    // Constructors
    //

    /** Default Constructor. */
    protected DOMConfigurationImpl() {
        this(null, null);
    } // <init>()

    /**
     * Constructs a parser configuration using the specified symbol table.
     *
     * @param symbolTable The symbol table to use.
     */
    protected DOMConfigurationImpl(SymbolTable symbolTable) {
        this(symbolTable, null);
    } // <init>(SymbolTable)

    /**
     * Constructs a parser configuration using the specified symbol table
     * and parent settings.
     *
     * @param symbolTable    The symbol table to use.
     * @param parentSettings The parent settings.
     */
    protected DOMConfigurationImpl(SymbolTable symbolTable,
                                    XMLComponentManager parentSettings) {
        super(parentSettings);

        // create storage for recognized features and properties
        fRecognizedFeatures = new ArrayList();
        fRecognizedProperties = new ArrayList();

        // create table for features and properties
        fFeatures = new HashMap();
        fProperties = new HashMap();

        // add default recognized features
        final String[] recognizedFeatures = {
            XERCES_VALIDATION,
            XERCES_NAMESPACES,
            SCHEMA,
            SCHEMA_FULL_CHECKING,
            DYNAMIC_VALIDATION,
            NORMALIZE_DATA,
            SEND_PSVI,
        };
        addRecognizedFeatures(recognizedFeatures);

        // set state for default features
        setFeature(XERCES_VALIDATION, false);
        setFeature(SCHEMA, false);
        setFeature(SCHEMA_FULL_CHECKING, false);
        setFeature(DYNAMIC_VALIDATION, false);
        setFeature(NORMALIZE_DATA, false);
        setFeature(XERCES_NAMESPACES, true);
        setFeature(SEND_PSVI, true);

        // add default recognized properties
        final String[] recognizedProperties = {
            XML_STRING,
            SYMBOL_TABLE,
            ERROR_HANDLER,
            ENTITY_RESOLVER,
            ERROR_REPORTER,
            ENTITY_MANAGER,
            VALIDATION_MANAGER,
            GRAMMAR_POOL,
            JAXP_SCHEMA_SOURCE,
            JAXP_SCHEMA_LANGUAGE,
			DTD_VALIDATOR_FACTORY_PROPERTY
        };
        addRecognizedProperties(recognizedProperties);

        // set default values for normalization features
        features |= NAMESPACES;
        features |= ENTITIES;
        features |= COMMENTS;
        features |= CDATA;
        features |= SPLITCDATA;
        features |= WELLFORMED;
        features |= NSDECL;

        if (symbolTable == null) {
            symbolTable = new SymbolTable();
        }
        fSymbolTable = symbolTable;

        fComponents = new ArrayList();

        setProperty(SYMBOL_TABLE, fSymbolTable);
        fErrorReporter = new XMLErrorReporter();
        setProperty(ERROR_REPORTER, fErrorReporter);
        addComponent(fErrorReporter);

        setProperty(DTD_VALIDATOR_FACTORY_PROPERTY, DTDDVFactory.getInstance());
		
        XMLEntityManager manager =  new XMLEntityManager();
        setProperty(ENTITY_MANAGER, manager);
        addComponent(manager);

        fValidationManager = createValidationManager();
        setProperty(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);
        }

        // REVISIT: try to include XML Schema formatter.
        //          This is a hack to allow DTD configuration to be build.
        //
        if (fErrorReporter.getMessageFormatter("http://www.w3.org/TR/xml-schema-1") == null) {
            MessageFormatter xmft = null;
            try {
               xmft = (MessageFormatter)(
                    ObjectFactory.newInstance("com.sun.org.apache.xerces.internal.impl.xs.XSMessageFormatter",
                    ObjectFactory.findClassLoader(), true));
            } catch (Exception exception){
            }

             if (xmft !=  null) {
                 fErrorReporter.putMessageFormatter("http://www.w3.org/TR/xml-schema-1", xmft);
             }
        }


        // set locale
        try {
            setLocale(Locale.getDefault());
        }
        catch (XNIException e) {
            // do nothing
            // REVISIT: What is the right thing to do? -Ac
        }


    } // <init>(SymbolTable)


    //
    // XMLParserConfiguration methods
    //

    /**
     * Parse an XML document.
     * <p>
     * The parser can use this method to instruct this configuration
     * to begin parsing an XML document from any valid input source
     * (a character stream, a byte stream, or a URI).
     * <p>
     * Parsers may not invoke this method while a parse is in progress.
     * Once a parse is complete, the parser may then parse another XML
     * document.
     * <p>
     * This method is synchronous: it will not return until parsing
     * has ended.  If a client application wants to terminate
     * parsing early, it should throw an exception.
     *
     * @param source The input source for the top-level of the
     *               XML document.
     *
     * @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.