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Xerces2 is the next generation of high performance, fully compliant XML parsers in the Apache Xerces family. This new version of Xerces introduces the Xerces Native Interface (XNI), a complete framework for building parser components and configurations that is extremely modular and easy to program. The Apache Xerces2 parser is the reference implementation of XNI but other parser components, configurations, and parsers can be written using the Xerces Native Interface. For complete design and implementation documents, refer to the XNI Manual. Xerces2 is a fully conforming XML Schema 1.0 processor. A partial experimental implementation of the XML Schema 1.1 Structures and Datatypes Working Drafts (December 2009) and an experimental implementation of the XML Schema Definition Language (XSD): Component Designators (SCD) Candidate Recommendation (January 2010) are provided for evaluation. For more information, refer to the XML Schema page. Xerces2 also provides a complete implementation of the Document Object Model Level 3 Core and Load/Save W3C Recommendations and provides a complete implementation of the XML Inclusions (XInclude) W3C Recommendation. It also provides support for OASIS XML Catalogs v1.1. Xerces2 is able to parse documents written according to the XML 1.1 Recommendation, except that it does not yet provide an option to enable normalization checking as described in section 2.13 of this specification. It also handles namespaces according to the XML Namespaces 1.1 Recommendation, and will correctly serialize XML 1.1 documents if the DOM level 3 load/save APIs are in use.

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.impl.xs.opti;

import org.apache.xerces.xni.Augmentations;
import org.apache.xerces.xni.NamespaceContext;
import org.apache.xerces.xni.QName;
import org.apache.xerces.xni.XMLAttributes;
import org.apache.xerces.xni.XMLDTDContentModelHandler;
import org.apache.xerces.xni.XMLDTDHandler;
import org.apache.xerces.xni.XMLDocumentHandler;
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.XMLDTDContentModelSource;
import org.apache.xerces.xni.parser.XMLDTDSource;
import org.apache.xerces.xni.parser.XMLDocumentSource;

/**
 * @xerces.internal 
 * 
 * @author Rahul Srivastava, Sun Microsystems Inc.
 * @author Sandy Gao, IBM
 *
 * @version $Id: DefaultXMLDocumentHandler.java 699892 2008-09-28 21:08:27Z mrglavas $
 */
public class DefaultXMLDocumentHandler implements XMLDocumentHandler, 
                                                  XMLDTDHandler, 
                                                  XMLDTDContentModelHandler {
    
    /** Default Constructor */
    public DefaultXMLDocumentHandler() {
    }

    //
    // XMLDocumentHandler methods
    //

    /**
     * The start of the document.
     * 
     * @param locator  The document locator, or null if the document
     *                 location cannot be reported during the parsing
     *                 of this document. However, it is strongly
     *                 recommended that a locator be supplied that can
     *                 at least report the system identifier of the
     *                 document.
     * @param encoding The auto-detected IANA encoding name of the entity
     *                 stream. This value will be null in those situations
     *                 where the entity encoding is not auto-detected (e.g.
     *                 internal entities or a document entity that is
     *                 parsed from a java.io.Reader).
     * @param augs     Additional information that may include infoset augmentations
     * @exception XNIException
     *                   Thrown by handler to signal an error.
     */
    public void startDocument(XMLLocator locator, String encoding,
                              NamespaceContext context, Augmentations augs) 
        throws XNIException {
    }

    /**
     * Notifies of the presence of an XMLDecl line in the document. If
     * present, this method will be called immediately following the
     * startDocument call.
     * 
     * @param version    The XML version.
     * @param encoding   The IANA encoding name of the document, or null if
     *                   not specified.
     * @param standalone The standalone value, or null if not specified.
     * @param augs       Additional information that may include infoset augmentations
     *                   
     * @exception XNIException
     *                   Thrown by handler to signal an error.
     */
    public void xmlDecl(String version, String encoding, String standalone, Augmentations augs)
        throws XNIException {
    }

    /**
     * Notifies of the presence of the DOCTYPE line in the document.
     * 
     * @param rootElement
     *                 The name of the root element.
     * @param publicId The public identifier if an external DTD or null
     *                 if the external DTD is specified using SYSTEM.
     * @param systemId The system identifier if an external DTD, null
     *                 otherwise.
     * @param augs     Additional information that may include infoset augmentations
     *                 
     * @exception XNIException
     *                   Thrown by handler to signal an error.
     */
    public void doctypeDecl(String rootElement, String publicId, String systemId, Augmentations augs)
        throws XNIException {
    }

    /**
     * A comment.
     * 
     * @param text   The text in the comment.
     * @param augs   Additional information that may include infoset augmentations
     *               
     * @exception XNIException
     *                   Thrown by application to signal an error.
     */
    public void comment(XMLString text, Augmentations augs) throws XNIException {
    }

    /**
     * A processing instruction. Processing instructions consist of a
     * target name and, optionally, text data. The data is only meaningful
     * to the application.
     * 

* Typically, a processing instruction's data will contain a series * of pseudo-attributes. These pseudo-attributes follow the form of * element attributes but are not parsed or presented * to the application as anything other than text. The application is * responsible for parsing the data. * * @param target The target. * @param data The data or null if none specified. * @param augs Additional information that may include infoset augmentations * * @exception XNIException * Thrown by handler to signal an error. */ public void processingInstruction(String target, XMLString data, Augmentations augs) throws XNIException { } /** * The start of a namespace prefix mapping. This method will only be * called when namespace processing is enabled. * * @param prefix The namespace prefix. * @param uri The URI bound to the prefix. * @param augs Additional information that may include infoset augmentations * * @exception XNIException * Thrown by handler to signal an error. */ public void startPrefixMapping(String prefix, String uri, Augmentations augs) throws XNIException { } /** * The start of an element. * * @param element The name of the element. * @param attributes The element attributes. * @param augs Additional information that may include infoset augmentations * * @exception XNIException * Thrown by handler to signal an error. */ public void startElement(QName element, XMLAttributes attributes, Augmentations augs) throws XNIException { } /** * An empty element. * * @param element The name of the element. * @param attributes The element attributes. * @param augs Additional information that may include infoset augmentations * * @exception XNIException * Thrown by handler to signal an error. */ public void emptyElement(QName element, XMLAttributes attributes, Augmentations augs) throws XNIException { } /** * This method notifies the start of a general entity. *

* Note: This method is not called for entity references * appearing as part of attribute values. * * @param name The name of the general entity. * @param identifier The resource identifier. * @param encoding The auto-detected IANA encoding name of the entity * stream. This value will be null in those situations * where the entity encoding is not auto-detected (e.g. * internal entities or a document entity that is * parsed from a java.io.Reader). * @param augs Additional information that may include infoset augmentations * * @exception XNIException Thrown by handler to signal an error. */ public void startGeneralEntity(String name, XMLResourceIdentifier identifier, String encoding, Augmentations augs) throws XNIException { } /** * Notifies of the presence of a TextDecl line in an entity. If present, * this method will be called immediately following the startEntity call. *

* Note: This method will never be called for the * document entity; it is only called for external general entities * referenced in document content. *

* Note: This method is not called for entity references * appearing as part of attribute values. * * @param version The XML version, or null if not specified. * @param encoding The IANA encoding name of the entity. * @param augs Additional information that may include infoset augmentations * * @exception XNIException * Thrown by handler to signal an error. */ public void textDecl(String version, String encoding, Augmentations augs) throws XNIException { } /** * This method notifies the end of a general entity. *

* Note: This method is not called for entity references * appearing as part of attribute values. * * @param name The name of the entity. * @param augs Additional information that may include infoset augmentations * * @exception XNIException * Thrown by handler to signal an error. */ public void endGeneralEntity(String name, Augmentations augs) throws XNIException { } /** * Character content. * * @param text The content. * @param augs Additional information that may include infoset augmentations * * @exception XNIException * Thrown by handler to signal an error. */ public void characters(XMLString text, Augmentations augs) throws XNIException { } /** * Ignorable whitespace. For this method to be called, the document * source must have some way of determining that the text containing * only whitespace characters should be considered ignorable. For * example, the validator can determine if a length of whitespace * characters in the document are ignorable based on the element * content model. * * @param text The ignorable whitespace. * @param augs Additional information that may include infoset augmentations * * @exception XNIException * Thrown by handler to signal an error. */ public void ignorableWhitespace(XMLString text, Augmentations augs) throws XNIException { } /** * The end of an element. * * @param element The name of the element. * @param augs Additional information that may include infoset augmentations * * @exception XNIException * Thrown by handler to signal an error. */ public void endElement(QName element, Augmentations augs) throws XNIException { } /** * The end of a namespace prefix mapping. This method will only be * called when namespace processing is enabled. * * @param prefix The namespace prefix. * @param augs Additional information that may include infoset augmentations * * @exception XNIException * Thrown by handler to signal an error. */ public void endPrefixMapping(String prefix, Augmentations augs) throws XNIException { } /** * The start of a CDATA section. * * @param augs Additional information that may include infoset augmentations * * @exception XNIException * Thrown by handler to signal an error. */ public void startCDATA(Augmentations augs) throws XNIException { } /** * The end of a CDATA section. * * @param augs Additional information that may include infoset augmentations * * @exception XNIException * Thrown by handler to signal an error. */ public void endCDATA(Augmentations augs) throws XNIException { } /** * The end of the document. * * @param augs Additional information that may include infoset augmentations * * @exception XNIException * Thrown by handler to signal an error. */ public void endDocument(Augmentations augs) throws XNIException { } // // XMLDTDHandler methods // /** * The start of the DTD. * * @param locator The document locator, or null if the document * location cannot be reported during the parsing of * the document DTD. However, it is strongly * recommended that a locator be supplied that can * at least report the base system identifier of the * DTD. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void startDTD(XMLLocator locator, Augmentations augmentations) throws XNIException { } /** * This method notifies of the start of a parameter entity. The parameter * entity name start with a '%' character. * * @param name The name of the parameter entity. * @param identifier The resource identifier. * @param encoding The auto-detected IANA encoding name of the entity * stream. This value will be null in those situations * where the entity encoding is not auto-detected (e.g. * internal parameter entities). * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void startParameterEntity(String name, XMLResourceIdentifier identifier, String encoding, Augmentations augmentations) throws XNIException { } /** * Notifies of the presence of a TextDecl line in an entity. If present, * this method will be called immediately following the startEntity call. *

* Note: This method is only called for external * parameter entities referenced in the DTD. * * @param version The XML version, or null if not specified. * @param encoding The IANA encoding name of the entity. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ /* public void textDecl(String version, String encoding, Augmentations augmentations) throws XNIException { } */ /** * This method notifies the end of a parameter entity. Parameter entity * names begin with a '%' character. * * @param name The name of the parameter entity. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void endParameterEntity(String name, Augmentations augmentations) throws XNIException { } /** * The start of the DTD external subset. * * @param identifier The resource identifier. * @param augmentations * Additional information that may include infoset * augmentations. * @exception XNIException * Thrown by handler to signal an error. */ public void startExternalSubset(XMLResourceIdentifier identifier, Augmentations augmentations) throws XNIException { } /** * The end of the DTD external subset. * * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void endExternalSubset(Augmentations augmentations) throws XNIException { } /** * A comment. * * @param text The text in the comment. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by application to signal an error. */ /* public void comment(XMLString text, Augmentations augmentations) throws XNIException { } */ /** * A processing instruction. Processing instructions consist of a * target name and, optionally, text data. The data is only meaningful * to the application. *

* Typically, a processing instruction's data will contain a series * of pseudo-attributes. These pseudo-attributes follow the form of * element attributes but are not parsed or presented * to the application as anything other than text. The application is * responsible for parsing the data. * * @param target The target. * @param data The data or null if none specified. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ /* public void processingInstruction(String target, XMLString data, Augmentations augmentations) throws XNIException { } */ /** * An element declaration. * * @param name The name of the element. * @param contentModel The element content model. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void elementDecl(String name, String contentModel, Augmentations augmentations) throws XNIException { } /** * The start of an attribute list. * * @param elementName The name of the element that this attribute * list is associated with. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void startAttlist(String elementName, Augmentations augmentations) throws XNIException { } /** * An attribute declaration. * * @param elementName The name of the element that this attribute * is associated with. * @param attributeName The name of the attribute. * @param type The attribute type. This value will be one of * the following: "CDATA", "ENTITY", "ENTITIES", * "ENUMERATION", "ID", "IDREF", "IDREFS", * "NMTOKEN", "NMTOKENS", or "NOTATION". * @param enumeration If the type has the value "ENUMERATION" or * "NOTATION", this array holds the allowed attribute * values; otherwise, this array is null. * @param defaultType The attribute default type. This value will be * one of the following: "#FIXED", "#IMPLIED", * "#REQUIRED", or null. * @param defaultValue The attribute default value, or null if no * default value is specified. * @param nonNormalizedDefaultValue The attribute default value with no normalization * performed, or null if no default value is specified. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void attributeDecl(String elementName, String attributeName, String type, String[] enumeration, String defaultType, XMLString defaultValue, XMLString nonNormalizedDefaultValue, Augmentations augmentations) throws XNIException { } /** * The end of an attribute list. * * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void endAttlist(Augmentations augmentations) throws XNIException { } /** * An internal entity declaration. * * @param name The name of the entity. Parameter entity names start with * '%', whereas the name of a general entity is just the * entity name. * @param text The value of the entity. * @param nonNormalizedText The non-normalized value of the entity. This * value contains the same sequence of characters that was in * the internal entity declaration, without any entity * references expanded. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void internalEntityDecl(String name, XMLString text, XMLString nonNormalizedText, Augmentations augmentations) throws XNIException { } /** * An external entity declaration. * * @param name The name of the entity. Parameter entity names start * with '%', whereas the name of a general entity is just * the entity name. * @param identifier An object containing all location information * pertinent to this external entity. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void externalEntityDecl(String name, XMLResourceIdentifier identifier, Augmentations augmentations) throws XNIException { } /** * An unparsed entity declaration. * * @param name The name of the entity. * @param identifier An object containing all location information * pertinent to this unparsed entity declaration. * @param notation The name of the notation. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void unparsedEntityDecl(String name, XMLResourceIdentifier identifier, String notation, Augmentations augmentations) throws XNIException { } /** * A notation declaration * * @param name The name of the notation. * @param identifier An object containing all location information * pertinent to this notation. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void notationDecl(String name, XMLResourceIdentifier identifier, Augmentations augmentations) throws XNIException { } /** * The start of a conditional section. * * @param type The type of the conditional section. This value will * either be CONDITIONAL_INCLUDE or CONDITIONAL_IGNORE. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. * * @see #CONDITIONAL_INCLUDE * @see #CONDITIONAL_IGNORE */ public void startConditional(short type, Augmentations augmentations) throws XNIException { } /** * Characters within an IGNORE conditional section. * * @param text The ignored text. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void ignoredCharacters(XMLString text, Augmentations augmentations) throws XNIException { } /** * The end of a conditional section. * * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void endConditional(Augmentations augmentations) throws XNIException { } /** * The end of the DTD. * * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void endDTD(Augmentations augmentations) throws XNIException { } // // XMLDTDContentModelHandler methods // /** * The start of a content model. Depending on the type of the content * model, specific methods may be called between the call to the * startContentModel method and the call to the endContentModel method. * * @param elementName The name of the element. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void startContentModel(String elementName, Augmentations augmentations) throws XNIException { } /** * A content model of ANY. * * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. * * @see #empty * @see #startGroup */ public void any(Augmentations augmentations) throws XNIException { } /** * A content model of EMPTY. * * @throws XNIException Thrown by handler to signal an error. * * @param augmentations Additional information that may include infoset * augmentations. * * @see #any * @see #startGroup */ public void empty(Augmentations augmentations) throws XNIException { } /** * A start of either a mixed or children content model. A mixed * content model will immediately be followed by a call to the * pcdata() method. A children content model will * contain additional groups and/or elements. * * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. * * @see #any * @see #empty */ public void startGroup(Augmentations augmentations) throws XNIException { } /** * The appearance of "#PCDATA" within a group signifying a * mixed content model. This method will be the first called * following the content model's startGroup(). * * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. * * @see #startGroup */ public void pcdata(Augmentations augmentations) throws XNIException { } /** * A referenced element in a mixed or children content model. * * @param elementName The name of the referenced element. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void element(String elementName, Augmentations augmentations) throws XNIException { } /** * The separator between choices or sequences of a mixed or children * content model. * * @param separator The type of children separator. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. * * @see #SEPARATOR_CHOICE * @see #SEPARATOR_SEQUENCE */ public void separator(short separator, Augmentations augmentations) throws XNIException { } /** * The occurrence count for a child in a children content model or * for the mixed content model group. * * @param occurrence The occurrence count for the last element * or group. * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. * * @see #OCCURS_ZERO_OR_ONE * @see #OCCURS_ZERO_OR_MORE * @see #OCCURS_ONE_OR_MORE */ public void occurrence(short occurrence, Augmentations augmentations) throws XNIException { } /** * The end of a group for mixed or children content models. * * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void endGroup(Augmentations augmentations) throws XNIException { } /** * The end of a content model. * * @param augmentations Additional information that may include infoset * augmentations. * * @throws XNIException Thrown by handler to signal an error. */ public void endContentModel(Augmentations augmentations) throws XNIException { } private XMLDocumentSource fDocumentSource; /** Sets the document source. */ public void setDocumentSource(XMLDocumentSource source) { fDocumentSource = source; } /** Returns the document source. */ public XMLDocumentSource getDocumentSource() { return fDocumentSource; } private XMLDTDSource fDTDSource; // set the source of this handler public void setDTDSource(XMLDTDSource source) { fDTDSource = source; } // return the source from which this handler derives its events public XMLDTDSource getDTDSource() { return fDTDSource; } private XMLDTDContentModelSource fCMSource; // set content model source public void setDTDContentModelSource(XMLDTDContentModelSource source) { fCMSource = source; } // get content model source public XMLDTDContentModelSource getDTDContentModelSource() { return fCMSource; } }





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