content: /*
   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * reserved comment block
   * DO NOT REMOVE OR ALTER!
   */
  /*
   * 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 jaxp.sun.org.apache.xerces.internal.dom;
  
  import jaxp.sun.org.apache.xerces.internal.impl.Constants;
  import jaxp.sun.org.apache.xerces.internal.impl.XMLEntityManager;
  import jaxp.sun.org.apache.xerces.internal.impl.XMLErrorReporter;
  import jaxp.sun.org.apache.xerces.internal.impl.dv.DTDDVFactory;
  import jaxp.sun.org.apache.xerces.internal.impl.msg.XMLMessageFormatter;
  import jaxp.sun.org.apache.xerces.internal.impl.validation.ValidationManager;
  import jaxp.sun.org.apache.xerces.internal.util.DOMEntityResolverWrapper;
  import jaxp.sun.org.apache.xerces.internal.util.DOMErrorHandlerWrapper;
  import jaxp.sun.org.apache.xerces.internal.util.MessageFormatter;
  import jaxp.sun.org.apache.xerces.internal.util.ParserConfigurationSettings;
  import jaxp.sun.org.apache.xerces.internal.util.PropertyState;
  import jaxp.sun.org.apache.xerces.internal.util.SymbolTable;
  import jaxp.sun.org.apache.xerces.internal.utils.ObjectFactory;
  import jaxp.sun.org.apache.xerces.internal.utils.XMLSecurityManager;
  import jaxp.sun.org.apache.xerces.internal.utils.XMLSecurityPropertyManager;
  import jaxp.sun.org.apache.xerces.internal.xni.XMLDTDContentModelHandler;
  import jaxp.sun.org.apache.xerces.internal.xni.XMLDTDHandler;
  import jaxp.sun.org.apache.xerces.internal.xni.XMLDocumentHandler;
  import jaxp.sun.org.apache.xerces.internal.xni.XNIException;
  import jaxp.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarPool;
  import jaxp.sun.org.apache.xerces.internal.xni.parser.XMLComponent;
  import jaxp.sun.org.apache.xerces.internal.xni.parser.XMLComponentManager;
  import jaxp.sun.org.apache.xerces.internal.xni.parser.XMLConfigurationException;
  import jaxp.sun.org.apache.xerces.internal.xni.parser.XMLEntityResolver;
  import jaxp.sun.org.apache.xerces.internal.xni.parser.XMLErrorHandler;
  import jaxp.sun.org.apache.xerces.internal.xni.parser.XMLInputSource;
  import jaxp.sun.org.apache.xerces.internal.xni.parser.XMLParserConfiguration;
  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.DOMException;
  import org.w3c.dom.DOMStringList;
  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 1.9 2010-11-01 04:39:37 joehw 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;
  
      /** Feature identifier: namespace growth */
      protected static final String NAMESPACE_GROWTH =
          Constants.XERCES_FEATURE_PREFIX + Constants.NAMESPACE_GROWTH_FEATURE;
  
      protected static final String TOLERATE_DUPLICATES =
          Constants.XERCES_FEATURE_PREFIX + Constants.TOLERATE_DUPLICATES_FEATURE;
  
      // 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;
  
      /** Property identifier: Schema DV Factory */
      protected static final String SCHEMA_DV_FACTORY =
          Constants.XERCES_PROPERTY_PREFIX + Constants.SCHEMA_DV_FACTORY_PROPERTY;
  
      /** Property identifier: Security manager. */
      private static final String SECURITY_MANAGER = Constants.SECURITY_MANAGER;
  
      /** Property identifier: Security property manager. */
      private static final String XML_SECURITY_PROPERTY_MANAGER =
              Constants.XML_SECURITY_PROPERTY_MANAGER;
  
      //
      // 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 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,
              NAMESPACE_GROWTH,
              TOLERATE_DUPLICATES
          };
          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);
          setFeature(NAMESPACE_GROWTH, false);
  
          // 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,
              SCHEMA_DV_FACTORY,
              SECURITY_MANAGER,
              XML_SECURITY_PROPERTY_MANAGER
          };
          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);
  
          setProperty(SECURITY_MANAGER, new XMLSecurityManager(true));
  
          setProperty(Constants.XML_SECURITY_PROPERTY_MANAGER,
                  new XMLSecurityPropertyManager());
  
          // 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("jaxp.sun.org.apache.xerces.internal.impl.xs.XSMessageFormatter", 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.
       */
      public void parse(XMLInputSource inputSource)
          throws XNIException, IOException{
          // no-op
      }
  
      /**
       * Sets the document handler on the last component in the pipeline
       * to receive information about the document.
       *
       * @param documentHandler   The document handler.
       */
      public void setDocumentHandler(XMLDocumentHandler documentHandler) {
          fDocumentHandler = documentHandler;
      } // setDocumentHandler(XMLDocumentHandler)
  
      /** Returns the registered document handler. */
      public XMLDocumentHandler getDocumentHandler() {
          return fDocumentHandler;
      } // getDocumentHandler():XMLDocumentHandler
  
      /**
       * Sets the DTD handler.
       *
       * @param dtdHandler The DTD handler.
       */
      public void setDTDHandler(XMLDTDHandler dtdHandler) {
          //no-op
      } // setDTDHandler(XMLDTDHandler)
  
      /** Returns the registered DTD handler. */
      public XMLDTDHandler getDTDHandler() {
          return null;
      } // getDTDHandler():XMLDTDHandler
  
      /**
       * Sets the DTD content model handler.
       *
       * @param handler The DTD content model handler.
       */
      public void setDTDContentModelHandler(XMLDTDContentModelHandler handler) {
          //no-op
  
      } // setDTDContentModelHandler(XMLDTDContentModelHandler)
  
      /** Returns the registered DTD content model handler. */
      public XMLDTDContentModelHandler getDTDContentModelHandler() {
          return null;
      } // getDTDContentModelHandler():XMLDTDContentModelHandler
  
      /**
       * Sets the resolver used to resolve external entities. The EntityResolver
       * interface supports resolution of public and system identifiers.
       *
       * @param resolver The new entity resolver. Passing a null value will
       *                 uninstall the currently installed resolver.
       */
      public void setEntityResolver(XMLEntityResolver resolver) {
          if (resolver !=null) {
              fProperties.put(ENTITY_RESOLVER, resolver);
          }
      } // setEntityResolver(XMLEntityResolver)
  
      /**
       * Return the current entity resolver.
       *
       * @return The current entity resolver, or null if none
       *         has been registered.
       * @see #setEntityResolver
       */
      public XMLEntityResolver getEntityResolver() {
          return (XMLEntityResolver)fProperties.get(ENTITY_RESOLVER);
      } // getEntityResolver():XMLEntityResolver
  
      /**
       * Allow an application to register an error event handler.
       *
       * <p>If the application does not register an error handler, all
       * error events reported by the SAX parser will be silently
       * ignored; however, normal processing may not continue.  It is
       * highly recommended that all SAX applications implement an
       * error handler to avoid unexpected bugs.</p>
       *
       * <p>Applications may register a new or different handler in the
       * middle of a parse, and the SAX parser must begin using the new
       * handler immediately.</p>
       *
       * @param errorHandler The error handler.
       * @exception java.lang.NullPointerException If the handler
       *            argument is null.
       * @see #getErrorHandler
       */
      public void setErrorHandler(XMLErrorHandler errorHandler) {
          if (errorHandler != null) {
              fProperties.put(ERROR_HANDLER, errorHandler);
          }
      } // setErrorHandler(XMLErrorHandler)
  
      /**
       * Return the current error handler.
       *
       * @return The current error handler, or null if none
       *         has been registered.
       * @see #setErrorHandler
       */
      public XMLErrorHandler getErrorHandler() {
          return (XMLErrorHandler)fProperties.get(ERROR_HANDLER);
      } // getErrorHandler():XMLErrorHandler
  
      /**
       * Set the state of a feature.
       *
       * Set the state of any feature in a SAX2 parser.  The parser
       * might not recognize the feature, and if it does recognize
       * it, it might not be able to fulfill the request.
       *
       * @param featureId The unique identifier (URI) of the feature.
       * @param state The requested state of the feature (true or false).
       *
       * @exception XMLConfigurationException If the
       *            requested feature is not known.
       */
      public void setFeature(String featureId, boolean state)
          throws XMLConfigurationException {
  
          // save state if noone "objects"
          super.setFeature(featureId, state);
  
      } // setFeature(String,boolean)
  
      /**
       * setProperty
       *
       * @param propertyId
       * @param value
       */
      public void setProperty(String propertyId, Object value)
          throws XMLConfigurationException {
  
          // store value if noone "objects"
          super.setProperty(propertyId, value);
  
      } // setProperty(String,Object)
  
      /**
       * 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.
       */
      public void setLocale(Locale locale) throws XNIException {
          fLocale = locale;
          fErrorReporter.setLocale(locale);
  
      } // setLocale(Locale)
  
      /** Returns the locale. */
      public Locale getLocale() {
          return fLocale;
      } // getLocale():Locale
  
      /**
       * DOM Level 3 WD - Experimental.
       * setParameter
       */
      public void setParameter(String name, Object value) throws DOMException {
          boolean found = true;
  
          // REVISIT: Recognizes DOM L3 default features only.
          //          Does not yet recognize Xerces features.
                  if(value instanceof Boolean){
                          boolean state = ((Boolean)value).booleanValue();
  
              if (name.equalsIgnoreCase(Constants.DOM_COMMENTS)) {
                  features = (short) (state ? features | COMMENTS : features & ~COMMENTS);
              }
              else if (name.equalsIgnoreCase(Constants.DOM_DATATYPE_NORMALIZATION)) {
                  setFeature(NORMALIZE_DATA, state);
                  features =
                      (short) (state ? features | DTNORMALIZATION : features & ~DTNORMALIZATION);
                  if (state) {
                      features = (short) (features | VALIDATE);
                  }
              }
              else if (name.equalsIgnoreCase(Constants.DOM_NAMESPACES)) {
                  features = (short) (state ? features | NAMESPACES : features & ~NAMESPACES);
              }
              else if (name.equalsIgnoreCase(Constants.DOM_CDATA_SECTIONS)) {
                  features = (short) (state ? features | CDATA : features & ~CDATA);
              }
              else if (name.equalsIgnoreCase(Constants.DOM_ENTITIES)) {
                  features = (short) (state ? features | ENTITIES : features & ~ENTITIES);
              }
              else if (name.equalsIgnoreCase(Constants.DOM_SPLIT_CDATA)) {
                  features = (short) (state ? features | SPLITCDATA : features & ~SPLITCDATA);
              }
              else if (name.equalsIgnoreCase(Constants.DOM_VALIDATE)) {
                  features = (short) (state ? features | VALIDATE : features & ~VALIDATE);
              }
              else if (name.equalsIgnoreCase(Constants.DOM_WELLFORMED)) {
                  features = (short) (state ? features | WELLFORMED : features & ~WELLFORMED );
              }
              else if (name.equalsIgnoreCase(Constants.DOM_NAMESPACE_DECLARATIONS)) {
                  features = (short) (state ? features | NSDECL : features & ~NSDECL);
              }
              else if (name.equalsIgnoreCase(Constants.DOM_INFOSET)) {
                  // Setting to false has no effect.
                  if (state) {
                      features = (short) (features | INFOSET_TRUE_PARAMS);
                      features = (short) (features & ~INFOSET_FALSE_PARAMS);
                      setFeature(NORMALIZE_DATA, false);
                  }
              }
              else if (name.equalsIgnoreCase(Constants.DOM_NORMALIZE_CHARACTERS)
                      || name.equalsIgnoreCase(Constants.DOM_CANONICAL_FORM)
                      || name.equalsIgnoreCase(Constants.DOM_VALIDATE_IF_SCHEMA)
                      || name.equalsIgnoreCase(Constants.DOM_CHECK_CHAR_NORMALIZATION)
                      ) {
                  if (state) { // true is not supported
                      String msg =
                          DOMMessageFormatter.formatMessage(
                              DOMMessageFormatter.DOM_DOMAIN,
                              "FEATURE_NOT_SUPPORTED",
                              new Object[] { name });
                      throw new DOMException(DOMException.NOT_SUPPORTED_ERR, msg);
                  }
              }
                          else if ( name.equalsIgnoreCase(Constants.DOM_ELEMENT_CONTENT_WHITESPACE)) {
                  if (!state) { // false is not supported
                      String msg =
                          DOMMessageFormatter.formatMessage(
                              DOMMessageFormatter.DOM_DOMAIN,
                              "FEATURE_NOT_SUPPORTED",
                              new Object[] { name });
                     throw new DOMException(DOMException.NOT_SUPPORTED_ERR, msg);
                  }
              }
              else if (name.equalsIgnoreCase(SEND_PSVI) ){
                  // REVISIT: turning augmentation of PSVI is not support,
                  // because in this case we won't be able to retrieve element
                  // default value.
                  if (!state) { // false is not supported
                      String msg =
                          DOMMessageFormatter.formatMessage(
                              DOMMessageFormatter.DOM_DOMAIN,
                              "FEATURE_NOT_SUPPORTED",
                              new Object[] { name });
                      throw new DOMException(DOMException.NOT_SUPPORTED_ERR, msg);
                  }
              }
              else if (name.equalsIgnoreCase(Constants.DOM_PSVI)){
                    features = (short) (state ? features | PSVI : features & ~PSVI);
              }
              else {
                  found = false;
                  /*
                  String msg =
                      DOMMessageFormatter.formatMessage(
                          DOMMessageFormatter.DOM_DOMAIN,
                          "FEATURE_NOT_FOUND",
                          new Object[] { name });
                  throw new DOMException(DOMException.NOT_FOUND_ERR, msg);
                  */
              }
  
          }
  
                  if (!found || !(value instanceof Boolean))  { // set properties
                          found = true;
  
              if (name.equalsIgnoreCase(Constants.DOM_ERROR_HANDLER)) {
                  if (value instanceof DOMErrorHandler || value == null) {
                      fErrorHandlerWrapper.setErrorHandler((DOMErrorHandler)value);
                      setErrorHandler(fErrorHandlerWrapper);
                  }
  
                  else {
                      // REVISIT: type mismatch
                      String msg =
                          DOMMessageFormatter.formatMessage(
                              DOMMessageFormatter.DOM_DOMAIN,
                              "TYPE_MISMATCH_ERR",
                              new Object[] { name });
                      throw new DOMException(DOMException.TYPE_MISMATCH_ERR, msg);
                  }
              }
              else if (name.equalsIgnoreCase(Constants.DOM_RESOURCE_RESOLVER)) {
                  if (value instanceof LSResourceResolver || value == null) {
                      try {
                          setEntityResolver(new DOMEntityResolverWrapper((LSResourceResolver) value));
                      }
                      catch (XMLConfigurationException e) {}
                  }
                  else {
                      // REVISIT: type mismatch
                      String msg =
                          DOMMessageFormatter.formatMessage(
                              DOMMessageFormatter.DOM_DOMAIN,
                              "TYPE_MISMATCH_ERR",
                              new Object[] { name });
                      throw new DOMException(DOMException.TYPE_MISMATCH_ERR, msg);
                  }
  
              }
              else if (name.equalsIgnoreCase(Constants.DOM_SCHEMA_LOCATION)) {
                  if (value instanceof String || value == null) {
                      try {
                          // map DOM schema-location to JAXP schemaSource property
                          setProperty(
                              Constants.JAXP_PROPERTY_PREFIX + Constants.SCHEMA_SOURCE,
                              value);
                      }
                      catch (XMLConfigurationException e) {}
                  }
                  else {
                      // REVISIT: type mismatch
                      String msg =
                          DOMMessageFormatter.formatMessage(
                              DOMMessageFormatter.DOM_DOMAIN,
                              "TYPE_MISMATCH_ERR",
                              new Object[] { name });
                      throw new DOMException(DOMException.TYPE_MISMATCH_ERR, msg);
                  }
  
              }
              else if (name.equalsIgnoreCase(Constants.DOM_SCHEMA_TYPE)) {
                  if (value instanceof String || value == null) {
                      try {
                          if (value == null) {
                              setProperty(
                                  Constants.JAXP_PROPERTY_PREFIX + Constants.SCHEMA_LANGUAGE,
                                  null);
                          }
                          else if (value.equals(Constants.NS_XMLSCHEMA)) {
                              // REVISIT: when add support to DTD validation
                              setProperty(
                                  Constants.JAXP_PROPERTY_PREFIX + Constants.SCHEMA_LANGUAGE,
                                  Constants.NS_XMLSCHEMA);
                          }
                          else if (value.equals(Constants.NS_DTD)) {
                              // Added support for revalidation against DTDs
                                  setProperty(Constants.JAXP_PROPERTY_PREFIX + Constants.SCHEMA_LANGUAGE,
                                                  Constants.NS_DTD);
                          }
                      }
                      catch (XMLConfigurationException e) {}
                  }
                  else {
                      String msg =
                          DOMMessageFormatter.formatMessage(
                              DOMMessageFormatter.DOM_DOMAIN,
                              "TYPE_MISMATCH_ERR",
                              new Object[] { name });
                      throw new DOMException(DOMException.TYPE_MISMATCH_ERR, msg);
                  }
  
              }
              else if (name.equalsIgnoreCase(SYMBOL_TABLE)){
                  // Xerces Symbol Table
                  if (value instanceof SymbolTable){
                      setProperty(SYMBOL_TABLE, value);
                  }
                  else {
                      // REVISIT: type mismatch
                      String msg =
                          DOMMessageFormatter.formatMessage(
                              DOMMessageFormatter.DOM_DOMAIN,
                              "TYPE_MISMATCH_ERR",
                              new Object[] { name });
                      throw new DOMException(DOMException.TYPE_MISMATCH_ERR, msg);
                  }
              }
              else if (name.equalsIgnoreCase (GRAMMAR_POOL)){
                  if (value instanceof XMLGrammarPool){
                      setProperty(GRAMMAR_POOL, value);
                  }
                  else {
                      // REVISIT: type mismatch
                      String msg =
                          DOMMessageFormatter.formatMessage(
                              DOMMessageFormatter.DOM_DOMAIN,
                              "TYPE_MISMATCH_ERR",
                              new Object[] { name });
                      throw new DOMException(DOMException.TYPE_MISMATCH_ERR, msg);
                  }
  
              }
              else {
                  // REVISIT: check if this is a boolean parameter -- type mismatch should be thrown.
                  //parameter is not recognized
                  String msg =
                      DOMMessageFormatter.formatMessage(
                          DOMMessageFormatter.DOM_DOMAIN,
                          "FEATURE_NOT_FOUND",
                          new Object[] { name });
                  throw new DOMException(DOMException.NOT_FOUND_ERR, msg);
              }
          }
  
      }
  
  
      /**
       * DOM Level 3 WD - Experimental.
       * getParameter
       */
          public Object getParameter(String name) throws DOMException {
  
                  // REVISIT: Recognizes DOM L3 default features only.
                  //          Does not yet recognize Xerces features.
  
                  if (name.equalsIgnoreCase(Constants.DOM_COMMENTS)) {
                          return ((features & COMMENTS) != 0) ? Boolean.TRUE : Boolean.FALSE;
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_NAMESPACES)) {
                          return (features & NAMESPACES) != 0 ? Boolean.TRUE : Boolean.FALSE;
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_DATATYPE_NORMALIZATION)) {
                          // REVISIT: datatype-normalization only takes effect if validation is on
                          return (features & DTNORMALIZATION) != 0 ? Boolean.TRUE : Boolean.FALSE;
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_CDATA_SECTIONS)) {
                          return (features & CDATA) != 0 ? Boolean.TRUE : Boolean.FALSE;
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_ENTITIES)) {
                          return (features & ENTITIES) != 0 ? Boolean.TRUE : Boolean.FALSE;
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_SPLIT_CDATA)) {
                          return (features & SPLITCDATA) != 0 ? Boolean.TRUE : Boolean.FALSE;
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_VALIDATE)) {
                          return (features & VALIDATE) != 0 ? Boolean.TRUE : Boolean.FALSE;
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_WELLFORMED)) {
                          return (features & WELLFORMED) != 0 ? Boolean.TRUE : Boolean.FALSE;
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_NAMESPACE_DECLARATIONS)) {
                      return (features & NSDECL) != 0 ? Boolean.TRUE : Boolean.FALSE;
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_INFOSET)) {
                          return (features & INFOSET_MASK) == INFOSET_TRUE_PARAMS ? Boolean.TRUE : Boolean.FALSE;
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_NORMALIZE_CHARACTERS)
                                  || name.equalsIgnoreCase(Constants.DOM_CANONICAL_FORM)
                                  || name.equalsIgnoreCase(Constants.DOM_VALIDATE_IF_SCHEMA)
                                  || name.equalsIgnoreCase(Constants.DOM_CHECK_CHAR_NORMALIZATION)
                  ) {
                          return Boolean.FALSE;
                  }
          else if (name.equalsIgnoreCase(SEND_PSVI)) {
              return Boolean.TRUE;
          }
          else if (name.equalsIgnoreCase(Constants.DOM_PSVI)) {
              return (features & PSVI) != 0 ? Boolean.TRUE : Boolean.FALSE;
          }
          else if (name.equalsIgnoreCase(Constants.DOM_ELEMENT_CONTENT_WHITESPACE)) {
                          return Boolean.TRUE;
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_ERROR_HANDLER)) {
              return fErrorHandlerWrapper.getErrorHandler();
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_RESOURCE_RESOLVER)) {
                          XMLEntityResolver entityResolver = getEntityResolver();
                          if (entityResolver != null && entityResolver instanceof DOMEntityResolverWrapper) {
                                  return ((DOMEntityResolverWrapper) entityResolver).getEntityResolver();
                          }
                          return null;
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_SCHEMA_TYPE)) {
                          return getProperty(Constants.JAXP_PROPERTY_PREFIX + Constants.SCHEMA_LANGUAGE);
                  }
                  else if (name.equalsIgnoreCase(Constants.DOM_SCHEMA_LOCATION)) {
                          return getProperty(Constants.JAXP_PROPERTY_PREFIX + Constants.SCHEMA_SOURCE);
                  }
          else if (name.equalsIgnoreCase(SYMBOL_TABLE)){
              return getProperty(SYMBOL_TABLE);
          }
          else if (name.equalsIgnoreCase(GRAMMAR_POOL)){
              return getProperty(GRAMMAR_POOL);
          }
                  else {
                          String msg =
                                  DOMMessageFormatter.formatMessage(
                                          DOMMessageFormatter.DOM_DOMAIN,
                                          "FEATURE_NOT_FOUND",
                                          new Object[] { name });
                          throw new DOMException(DOMException.NOT_FOUND_ERR, msg);
                  }
  
          }
  
      /**
       * DOM Level 3 WD - Experimental.
       * Check if setting a parameter to a specific value is supported.
       *
       * @param name The name of the parameter to check.
       *
       * @param value An object. if null, the returned value is true.
       *
       * @return true if the parameter could be successfully set to the
       * specified value, or false if the parameter is not recognized or
       * the requested value is not supported. This does not change the
       * current value of the parameter itself.
       */
          public boolean canSetParameter(String name, Object value) {
  
          if (value == null){
              //if null, the returned value is true.
              //REVISIT: I dont like this --- even for unrecognized parameter it would
              //return 'true'. I think it should return false in that case.
              // Application will be surprised to find that setParameter throws not
              //recognized exception when canSetParameter returns 'true' Then what is the use
              //of having canSetParameter ??? - nb.
              return true ;
          }
          if( value instanceof Boolean ){
              //features whose parameter value can be set either 'true' or 'false'
              // or they accept any boolean value -- so we just need to check that
              // its a boolean value..
              if (name.equalsIgnoreCase(Constants.DOM_COMMENTS)
                  || name.equalsIgnoreCase(Constants.DOM_DATATYPE_NORMALIZATION)
                  || name.equalsIgnoreCase(Constants.DOM_CDATA_SECTIONS)
                  || name.equalsIgnoreCase(Constants.DOM_ENTITIES)
                  || name.equalsIgnoreCase(Constants.DOM_SPLIT_CDATA)
                  || name.equalsIgnoreCase(Constants.DOM_NAMESPACES)
                  || name.equalsIgnoreCase(Constants.DOM_VALIDATE)
                  || name.equalsIgnoreCase(Constants.DOM_WELLFORMED)
                  || name.equalsIgnoreCase(Constants.DOM_INFOSET)
                  || name.equalsIgnoreCase(Constants.DOM_NAMESPACE_DECLARATIONS)
                  ) {
                  return true;
              }//features whose parameter value can not be set to 'true'
              else if (
                  name.equalsIgnoreCase(Constants.DOM_NORMALIZE_CHARACTERS)
                      || name.equalsIgnoreCase(Constants.DOM_CANONICAL_FORM)
                      || name.equalsIgnoreCase(Constants.DOM_VALIDATE_IF_SCHEMA)
                      || name.equalsIgnoreCase(Constants.DOM_CHECK_CHAR_NORMALIZATION)
                      ) {
                      return (value.equals(Boolean.TRUE)) ? false : true;
              }//features whose parameter value can not be set to 'false'
              else if( name.equalsIgnoreCase(Constants.DOM_ELEMENT_CONTENT_WHITESPACE)
                      || name.equalsIgnoreCase(SEND_PSVI)
                      ) {
                      return (value.equals(Boolean.TRUE)) ? true : false;
              }// if name is not among the above listed above -- its not recognized. return false
              else {
                  return false ;
              }
          }
                  else if (name.equalsIgnoreCase(Constants.DOM_ERROR_HANDLER)) {
              return (value instanceof DOMErrorHandler) ? true : false ;
          }
          else if (name.equalsIgnoreCase(Constants.DOM_RESOURCE_RESOLVER)) {
              return (value instanceof LSResourceResolver) ? true : false ;
          }
          else if (name.equalsIgnoreCase(Constants.DOM_SCHEMA_LOCATION)) {
              return (value instanceof String) ? true : false ;
          }
          else if (name.equalsIgnoreCase(Constants.DOM_SCHEMA_TYPE)) {
              // REVISIT: should null value be supported?
              //as of now we are only supporting W3C XML Schema
              return ( (value instanceof String) && value.equals(Constants.NS_XMLSCHEMA) ) ? true : false ;
          }
          else if (name.equalsIgnoreCase(SYMBOL_TABLE)){
              // Xerces Symbol Table
              return (value instanceof SymbolTable) ? true : false ;
          }
          else if (name.equalsIgnoreCase (GRAMMAR_POOL)){
              return (value instanceof XMLGrammarPool) ? true : false ;
          }
          else {
              //false if the parameter is not recognized or the requested value is not supported.
              return false ;
          }
  
          } //canSetParameter
  
      /**
       *  DOM Level 3 CR - Experimental.
       *
       *  The list of the parameters supported by this
       * <code>DOMConfiguration</code> object and for which at least one value
       * can be set by the application. Note that this list can also contain
       * parameter names defined outside this specification.
       */
      public DOMStringList getParameterNames() {
          if (fRecognizedParameters == null){
                          Vector parameters = new Vector();
  
                          //Add DOM recognized parameters
                          //REVISIT: Would have been nice to have a list of
                          //recognized paramters.
                          parameters.add(Constants.DOM_COMMENTS);
                          parameters.add(Constants.DOM_DATATYPE_NORMALIZATION);
                          parameters.add(Constants.DOM_CDATA_SECTIONS);
                          parameters.add(Constants.DOM_ENTITIES);
                          parameters.add(Constants.DOM_SPLIT_CDATA);
                          parameters.add(Constants.DOM_NAMESPACES);
                          parameters.add(Constants.DOM_VALIDATE);
  
                          parameters.add(Constants.DOM_INFOSET);
                          parameters.add(Constants.DOM_NORMALIZE_CHARACTERS);
                          parameters.add(Constants.DOM_CANONICAL_FORM);
                          parameters.add(Constants.DOM_VALIDATE_IF_SCHEMA);
                          parameters.add(Constants.DOM_CHECK_CHAR_NORMALIZATION);
                          parameters.add(Constants.DOM_WELLFORMED);
  
                          parameters.add(Constants.DOM_NAMESPACE_DECLARATIONS);
                          parameters.add(Constants.DOM_ELEMENT_CONTENT_WHITESPACE);
  
                          parameters.add(Constants.DOM_ERROR_HANDLER);
                          parameters.add(Constants.DOM_SCHEMA_TYPE);
                          parameters.add(Constants.DOM_SCHEMA_LOCATION);
                          parameters.add(Constants.DOM_RESOURCE_RESOLVER);
  
                          //Add recognized xerces features and properties
                          parameters.add(GRAMMAR_POOL);
                          parameters.add(SYMBOL_TABLE);
                          parameters.add(SEND_PSVI);
  
                          fRecognizedParameters = new DOMStringListImpl(parameters);
  
          }
  
          return fRecognizedParameters;
      }//getParameterNames
  
      //
      // Protected methods
      //
  
      /**
       * reset all components before parsing
       */
      protected void reset() throws XNIException {
  
          if (fValidationManager != null)
              fValidationManager.reset();
  
          int count = fComponents.size();
          for (int i = 0; i < count; i++) {
              XMLComponent c = (XMLComponent) fComponents.get(i);
              c.reset(this);
          }
  
      } // reset()
  
      /**
       * Check a property. If the property is known and supported, this method
       * simply returns. Otherwise, the appropriate exception is thrown.
       *
       * @param propertyId The unique identifier (URI) of the property
       *                   being set.
       * @exception XMLConfigurationException If the
       *            requested feature is not known or supported.
       */
      protected PropertyState checkProperty(String propertyId)
          throws XMLConfigurationException {
  
          // special cases
          if (propertyId.startsWith(Constants.SAX_PROPERTY_PREFIX)) {
              final int suffixLength = propertyId.length() - Constants.SAX_PROPERTY_PREFIX.length();
  
              //
              // http://xml.org/sax/properties/xml-string
              // Value type: String
              // Access: read-only
              //   Get the literal string of characters associated with the
              //   current event.  If the parser recognises and supports this
              //   property but is not currently parsing text, it should return
              //   null (this is a good way to check for availability before the
              //   parse begins).
              //
              if (suffixLength == Constants.XML_STRING_PROPERTY.length() &&
                  propertyId.endsWith(Constants.XML_STRING_PROPERTY)) {
                  // REVISIT - we should probably ask xml-dev for a precise
                  // definition of what this is actually supposed to return, and
                  // in exactly which circumstances.
                  return PropertyState.NOT_SUPPORTED;
              }
          }
  
          // check property
          return super.checkProperty(propertyId);
  
      } // checkProperty(String)
  
  
      protected void addComponent(XMLComponent component) {
  
          // don't add a component more than once
          if (fComponents.contains(component)) {
              return;
          }
          fComponents.add(component);
  
          // register component's recognized features
          String[] recognizedFeatures = component.getRecognizedFeatures();
          addRecognizedFeatures(recognizedFeatures);
  
          // register component's recognized properties
          String[] recognizedProperties = component.getRecognizedProperties();
          addRecognizedProperties(recognizedProperties);
  
      } // addComponent(XMLComponent)
  
      protected ValidationManager createValidationManager(){
          return new ValidationManager();
      }
  
  } // class XMLParser
  