cvs commit: xml-xerces/java/src/org/apache/xerces/jaxp UnparsedEntityHandler.java

[mr...@apache.org]

mrglavas    2005/06/21 08:51:46

  Added:       java/src/org/apache/xerces/jaxp UnparsedEntityHandler.java
  Log:
  An XMLDTDHandler which records the names of unparsed entites in the DTD.
  We need this component in order to support the xs:ENTITY type.
  
  Revision  Changes    Path
  1.1                  xml-xerces/java/src/org/apache/xerces/jaxp/UnparsedEntityHandler.java
  
  Index: UnparsedEntityHandler.java
  ===================================================================
  /*
   * Copyright 2005 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 org.apache.xerces.jaxp;
  
  import java.util.HashMap;
  
  import org.apache.xerces.impl.validation.EntityState;
  import org.apache.xerces.impl.validation.ValidationManager;
  import org.apache.xerces.xni.Augmentations;
  import org.apache.xerces.xni.XMLDTDHandler;
  import org.apache.xerces.xni.XMLLocator;
  import org.apache.xerces.xni.XMLResourceIdentifier;
  import org.apache.xerces.xni.XMLString;
  import org.apache.xerces.xni.XNIException;
  import org.apache.xerces.xni.parser.XMLDTDFilter;
  import org.apache.xerces.xni.parser.XMLDTDSource;
  
  /**
   * <p>This filter records which unparsed entities have been
   * declared in the DTD and provides this information to a ValidationManager.
   * Events are forwarded to the registered XMLDTDHandler without modification.</p>
   * 
   * @author Michael Glavassevich, IBM
   */
  class UnparsedEntityHandler implements XMLDTDFilter, EntityState {
  
      /** DTD source and handler. **/
      private XMLDTDSource fDTDSource;
      private XMLDTDHandler fDTDHandler;
      
      /** Validation manager. */
      private final ValidationManager fValidationManager;
      
      /** Map for tracking unparsed entities. */
      private HashMap fUnparsedEntities = null;
      
      UnparsedEntityHandler(ValidationManager manager) {
          fValidationManager = manager;
      }
      
      /*
       * XMLDTDHandler methods
       */
  
      public void startDTD(XMLLocator locator, Augmentations augmentations)
              throws XNIException {
          fValidationManager.setEntityState(this);
          if (fDTDHandler != null) {
              fDTDHandler.startDTD(locator, augmentations);
          }
      }
  
      public void startParameterEntity(String name,
              XMLResourceIdentifier identifier, String encoding,
              Augmentations augmentations) throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.startParameterEntity(name, identifier, encoding, augmentations);
          }
      }
  
      public void textDecl(String version, String encoding,
              Augmentations augmentations) throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.textDecl(version, encoding, augmentations);
          }
      }
  
      public void endParameterEntity(String name, Augmentations augmentations)
              throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.endParameterEntity(name, augmentations);
          }
      }
  
      public void startExternalSubset(XMLResourceIdentifier identifier,
              Augmentations augmentations) throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.startExternalSubset(identifier, augmentations);
          }
      }
  
      public void endExternalSubset(Augmentations augmentations)
              throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.endExternalSubset(augmentations);
          }
      }
  
      public void comment(XMLString text, Augmentations augmentations)
              throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.comment(text, augmentations);
          }
      }
  
      public void processingInstruction(String target, XMLString data,
              Augmentations augmentations) throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.processingInstruction(target, data, augmentations);
          }
      }
  
      public void elementDecl(String name, String contentModel,
              Augmentations augmentations) throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.elementDecl(name, contentModel, augmentations);
          }
      }
  
      public void startAttlist(String elementName, Augmentations augmentations)
              throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.startAttlist(elementName, augmentations);
          }
      }
  
      public void attributeDecl(String elementName, String attributeName,
              String type, String[] enumeration, String defaultType,
              XMLString defaultValue, XMLString nonNormalizedDefaultValue,
              Augmentations augmentations) throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.attributeDecl(elementName, attributeName,
                      type, enumeration, defaultType,
                      defaultValue, nonNormalizedDefaultValue,
                      augmentations);
          }
      }
  
      public void endAttlist(Augmentations augmentations) throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.endAttlist(augmentations);
          }
      }
  
      public void internalEntityDecl(String name, XMLString text,
              XMLString nonNormalizedText, Augmentations augmentations)
              throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.internalEntityDecl(name, text,
                      nonNormalizedText, augmentations);
          }
      }
  
      public void externalEntityDecl(String name,
              XMLResourceIdentifier identifier, Augmentations augmentations)
              throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.externalEntityDecl(name, identifier, augmentations);
          }
      }
  
      public void unparsedEntityDecl(String name,
              XMLResourceIdentifier identifier, String notation,
              Augmentations augmentations) throws XNIException {
          if (fUnparsedEntities == null) {
              fUnparsedEntities = new HashMap();
          }
          fUnparsedEntities.put(name, name);
          if (fDTDHandler != null) {
              fDTDHandler.unparsedEntityDecl(name, identifier, notation, augmentations);
          }
      }
  
      public void notationDecl(String name, XMLResourceIdentifier identifier,
              Augmentations augmentations) throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.notationDecl(name, identifier, augmentations);
          }
      }
  
      public void startConditional(short type, Augmentations augmentations)
              throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.startConditional(type, augmentations);
          }
      }
  
      public void ignoredCharacters(XMLString text, Augmentations augmentations)
              throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.ignoredCharacters(text, augmentations);
          }
  
      }
  
      public void endConditional(Augmentations augmentations) throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.endConditional(augmentations);
          }
      }
  
      public void endDTD(Augmentations augmentations) throws XNIException {
          if (fDTDHandler != null) {
              fDTDHandler.endDTD(augmentations);
          }
      }
  
      public void setDTDSource(XMLDTDSource source) {
          fDTDSource = source;
      }
  
      public XMLDTDSource getDTDSource() {
          return fDTDSource;
      }
      
      /*
       * XMLDTDSource methods
       */
  
      public void setDTDHandler(XMLDTDHandler handler) {
          fDTDHandler = handler;
      }
  
      public XMLDTDHandler getDTDHandler() {
          return fDTDHandler;
      }
      
      /*
       * EntityState methods
       */
  
      public boolean isEntityDeclared(String name) {
          return false;
      }
  
      public boolean isEntityUnparsed(String name) {
          if (fUnparsedEntities != null) {
              return fUnparsedEntities.containsKey(name);
          }
          return false;
      }
      
  }
  
  
  

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