DefaultHandler.hpp
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- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 1999-2000 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Xerces" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation, and was
- * originally based on software copyright (c) 1999, International
- * Business Machines, Inc., http://www.ibm.com . For more information
- * on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- /*
- * $Log: DefaultHandler.hpp,v $
- * Revision 1.5 2002/11/04 14:55:45 tng
- * C++ Namespace Support.
- *
- * Revision 1.4 2002/08/20 16:53:56 tng
- * [Bug 6251] Info during compilation.
- *
- * Revision 1.3 2002/06/06 20:38:45 tng
- * Document Fix: document that the returned object from resolveEntity is owned by the parser
- *
- * Revision 1.2 2002/02/20 18:17:02 tng
- * [Bug 5977] Warnings on generating apiDocs.
- *
- * Revision 1.1.1.1 2002/02/01 22:22:09 peiyongz
- * sane_include
- *
- * Revision 1.6 2002/01/28 17:08:33 knoaman
- * SAX2-ext's DeclHandler support.
- *
- * Revision 1.5 2001/11/13 13:24:05 tng
- * Fix documentation for DefaultHandler.
- *
- * Revision 1.4 2000/12/22 15:17:01 tng
- * SAX2-ext's LexicalHandler support added by David Bertoni.
- *
- * Revision 1.3 2000/08/14 18:56:14 aruna1
- * Virtual parameter inconsistency fixed
- *
- * Revision 1.2 2000/08/07 18:21:27 jpolast
- * change SAX_EXPORT module to SAX2_EXPORT
- *
- * Revision 1.1 2000/08/02 18:02:34 jpolast
- * initial checkin of sax2 implementation
- * submitted by Simon Fell (simon@fell.com)
- * and Joe Polastre (jpolast@apache.org)
- *
- *
- */
- #ifndef DEFAULTHANDLER_HPP
- #define DEFAULTHANDLER_HPP
- #include <xercesc/sax2/ContentHandler.hpp>
- #include <xercesc/sax2/LexicalHandler.hpp>
- #include <xercesc/sax2/DeclHandler.hpp>
- #include <xercesc/sax/DTDHandler.hpp>
- #include <xercesc/sax/EntityResolver.hpp>
- #include <xercesc/sax/ErrorHandler.hpp>
- #include <xercesc/sax/SAXParseException.hpp>
- XERCES_CPP_NAMESPACE_BEGIN
- class Locator;
- class Attributes;
- /**
- * Default base class for SAX2 handlers.
- *
- * <p>This class implements the default behaviour for SAX2
- * interfaces: EntityResolver, DTDHandler, ContentHandler,
- * ErrorHandler, LexicalHandler, and DeclHandler.</p>
- *
- * <p>Application writers can extend this class when they need to
- * implement only part of an interface; parser writers can
- * instantiate this class to provide default handlers when the
- * application has not supplied its own.</p>
- *
- * <p>Note that the use of this class is optional.</p>
- *
- * @see EntityResolver#EntityResolver
- * @see DTDHandler#DTDHandler
- * @see ContentHandler#ContentHandler
- * @see ErrorHandler#ErrorHandler
- * @see LexicalHandler#LexicalHandler
- * @see DeclHandler#DeclHandler
- */
- class SAX2_EXPORT DefaultHandler :
- public EntityResolver,
- public DTDHandler,
- public ContentHandler,
- public ErrorHandler,
- public LexicalHandler,
- public DeclHandler
- {
- public:
- /** @name Default handlers for the DocumentHandler interface */
- //@{
- /**
- * Receive notification of character data inside an element.
- *
- * <p>By default, do nothing. Application writers may override this
- * method to take specific actions for each chunk of character data
- * (such as adding the data to a node or buffer, or printing it to
- * a file).</p>
- *
- * @param chars The characters.
- * @param length The number of characters to use from the
- * character array.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see DocumentHandler#characters
- */
- virtual void characters
- (
- const XMLCh* const chars
- , const unsigned int length
- );
- /**
- * Receive notification of the end of the document.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions at the beginning
- * of a document (such as finalising a tree or closing an output
- * file).</p>
- *
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see DocumentHandler#endDocument
- */
- virtual void endDocument();
- /**
- * Receive notification of the end of an element.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions at the end of
- * each element (such as finalising a tree node or writing
- * output to a file).</p>
- *
- * @param uri The URI of the asscioated namespace for this element
- * @param localname The local part of the element name
- * @param qname The QName of this element
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see DocumentHandler#endElement
- */
- virtual void endElement
- (
- const XMLCh* const uri,
- const XMLCh* const localname,
- const XMLCh* const qname
- );
- /**
- * Receive notification of ignorable whitespace in element content.
- *
- * <p>By default, do nothing. Application writers may override this
- * method to take specific actions for each chunk of ignorable
- * whitespace (such as adding data to a node or buffer, or printing
- * it to a file).</p>
- *
- * @param chars The whitespace characters.
- * @param length The number of characters to use from the
- * character array.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see DocumentHandler#ignorableWhitespace
- */
- virtual void ignorableWhitespace
- (
- const XMLCh* const chars
- , const unsigned int length
- );
- /**
- * Receive notification of a processing instruction.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions for each
- * processing instruction, such as setting status variables or
- * invoking other methods.</p>
- *
- * @param target The processing instruction target.
- * @param data The processing instruction data, or null if
- * none is supplied.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see DocumentHandler#processingInstruction
- */
- virtual void processingInstruction
- (
- const XMLCh* const target
- , const XMLCh* const data
- );
- /**
- * Reset the Docuemnt object on its reuse
- *
- * @see DocumentHandler#resetDocument
- */
- virtual void resetDocument();
- //@}
- /** @name Default implementation of DocumentHandler interface */
- //@{
- /**
- * Receive a Locator object for document events.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass if they wish to store the locator for use
- * with other document events.</p>
- *
- * @param locator A locator for all SAX document events.
- * @see DocumentHandler#setDocumentLocator
- * @see Locator
- */
- virtual void setDocumentLocator(const Locator* const locator);
- /**
- * Receive notification of the beginning of the document.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions at the beginning
- * of a document (such as allocating the root node of a tree or
- * creating an output file).</p>
- *
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see DocumentHandler#startDocument
- */
- virtual void startDocument();
- /**
- * Receive notification of the start of an element.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions at the start of
- * each element (such as allocating a new tree node or writing
- * output to a file).</p>
- *
- * @param uri The URI of the asscioated namespace for this element
- * @param localname the local part of the element name
- * @param qname the QName of this element
- * @param attrs The specified or defaulted attributes.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see DocumentHandler#startElement
- */
- virtual void startElement
- (
- const XMLCh* const uri,
- const XMLCh* const localname,
- const XMLCh* const qname
- , const Attributes& attrs
- );
- /**
- * Receive notification of the start of an namespace prefix mapping.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions at the start of
- * each namespace prefix mapping.</p>
- *
- * NOTE : The current Implementation of SAX2Parser will _NEVER_ call this
- *
- * @param prefix The namespace prefix used
- * @param uri The namespace URI used.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see DocumentHandler#startPrefixMapping
- */
- virtual void startPrefixMapping
- (
- const XMLCh* const prefix,
- const XMLCh* const uri
- ) ;
- /**
- * Receive notification of the end of an namespace prefix mapping.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions at the end of
- * each namespace prefix mapping.</p>
- *
- * NOTE : The current Implementation of SAX2Parser will _NEVER_ call this
- *
- * @param prefix The namespace prefix used
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see DocumentHandler#endPrefixMapping
- */
- virtual void endPrefixMapping
- (
- const XMLCh* const prefix
- ) ;
- /**
- * Receive notification of a skipped entity
- *
- * <p>The parser will invoke this method once for each entity
- * skipped. All processors may skip external entities,
- * depending on the values of the features:<br>
- * http://xml.org/sax/features/external-general-entities<br>
- * http://xml.org/sax/features/external-parameter-entities</p>
- *
- * <p>Introduced with SAX2</p>
- *
- * @param name The name of the skipped entity. If it is a parameter entity,
- * the name will begin with %, and if it is the external DTD subset,
- * it will be the string [dtd].
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- virtual void skippedEntity
- (
- const XMLCh* const name
- ) ;
- //@}
- /** @name Default implementation of the EntityResolver interface. */
- //@{
- /**
- * Resolve an external entity.
- *
- * <p>Always return null, so that the parser will use the system
- * identifier provided in the XML document. This method implements
- * the SAX default behaviour: application writers can override it
- * in a subclass to do special translations such as catalog lookups
- * or URI redirection.</p>
- *
- * @param publicId The public identifer, or null if none is
- * available.
- * @param systemId The system identifier provided in the XML
- * document.
- * @return The new input source, or null to require the
- * default behaviour.
- * The returned InputSource is owned by the parser which is
- * responsible to clean up the memory.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see EntityResolver#resolveEntity
- */
- virtual InputSource* resolveEntity
- (
- const XMLCh* const publicId
- , const XMLCh* const systemId
- );
- //@}
- /** @name Default implementation of the ErrorHandler interface */
- //@{
- /**
- * Receive notification of a recoverable parser error.
- *
- * <p>The default implementation does nothing. Application writers
- * may override this method in a subclass to take specific actions
- * for each error, such as inserting the message in a log file or
- * printing it to the console.</p>
- *
- * @param exception The warning information encoded as an exception.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see ErrorHandler#warning
- * @see SAXParseException#SAXParseException
- */
- virtual void error(const SAXParseException& exception);
- /**
- * Report a fatal XML parsing error.
- *
- * <p>The default implementation throws a SAXParseException.
- * Application writers may override this method in a subclass if
- * they need to take specific actions for each fatal error (such as
- * collecting all of the errors into a single report): in any case,
- * the application must stop all regular processing when this
- * method is invoked, since the document is no longer reliable, and
- * the parser may no longer report parsing events.</p>
- *
- * @param exception The error information encoded as an exception.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see ErrorHandler#fatalError
- * @see SAXParseException#SAXParseException
- */
- virtual void fatalError(const SAXParseException& exception);
- /**
- * Receive notification of a parser warning.
- *
- * <p>The default implementation does nothing. Application writers
- * may override this method in a subclass to take specific actions
- * for each warning, such as inserting the message in a log file or
- * printing it to the console.</p>
- *
- * @param exception The warning information encoded as an exception.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see ErrorHandler#warning
- * @see SAXParseException#SAXParseException
- */
- virtual void warning(const SAXParseException& exception);
- /**
- * Reset the Error handler object on its reuse
- *
- * @see ErrorHandler#resetErrors
- */
- virtual void resetErrors();
- //@}
- /** @name Default implementation of DTDHandler interface. */
- //@{
- /**
- * Receive notification of a notation declaration.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass if they wish to keep track of the notations
- * declared in a document.</p>
- *
- * @param name The notation name.
- * @param publicId The notation public identifier, or null if not
- * available.
- * @param systemId The notation system identifier.
- * @see DTDHandler#notationDecl
- */
- virtual void notationDecl
- (
- const XMLCh* const name
- , const XMLCh* const publicId
- , const XMLCh* const systemId
- );
- /**
- * Reset the DTD object on its reuse
- *
- * @see DTDHandler#resetDocType
- */
- virtual void resetDocType();
- /**
- * Receive notification of an unparsed entity declaration.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to keep track of the unparsed entities
- * declared in a document.</p>
- *
- * @param name The entity name.
- * @param publicId The entity public identifier, or null if not
- * available.
- * @param systemId The entity system identifier.
- * @param notationName The name of the associated notation.
- * @see DTDHandler#unparsedEntityDecl
- */
- virtual void unparsedEntityDecl
- (
- const XMLCh* const name
- , const XMLCh* const publicId
- , const XMLCh* const systemId
- , const XMLCh* const notationName
- );
- //@}
- /** @name Default implementation of LexicalHandler interface. */
- //@{
- /**
- * Receive notification of comments.
- *
- * <p>The Parser will call this method to report each occurence of
- * a comment in the XML document.</p>
- *
- * <p>The application must not attempt to read from the array
- * outside of the specified range.</p>
- *
- * @param chars The characters from the XML document.
- * @param length The number of characters to read from the array.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- virtual void comment
- (
- const XMLCh* const chars
- , const unsigned int length
- );
- /**
- * Receive notification of the end of a CDATA section.
- *
- * <p>The SAX parser will invoke this method at the end of
- * each CDATA parsed.</p>
- *
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- virtual void endCDATA ();
- /**
- * Receive notification of the end of the DTD declarations.
- *
- * <p>The SAX parser will invoke this method at the end of the
- * DTD</p>
- *
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- virtual void endDTD ();
- /**
- * Receive notification of the end of an entity.
- *
- * <p>The SAX parser will invoke this method at the end of an
- * entity</p>
- *
- * @param name The name of the entity that is ending.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- virtual void endEntity (const XMLCh* const name);
- /**
- * Receive notification of the start of a CDATA section.
- *
- * <p>The SAX parser will invoke this method at the start of
- * each CDATA parsed.</p>
- *
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- virtual void startCDATA ();
- /**
- * Receive notification of the start of the DTD declarations.
- *
- * <p>The SAX parser will invoke this method at the start of the
- * DTD</p>
- *
- * @param name The document type name.
- * @param publicId The declared public identifier for the external DTD subset, or null if none was declared.
- * @param systemId The declared system identifier for the external DTD subset, or null if none was declared.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- virtual void startDTD
- (
- const XMLCh* const name
- , const XMLCh* const publicId
- , const XMLCh* const systemId
- );
- /**
- * Receive notification of the start of an entity.
- *
- * <p>The SAX parser will invoke this method at the start of an
- * entity</p>
- *
- * @param name The name of the entity that is starting.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- virtual void startEntity (const XMLCh* const name);
- //@}
- /** @name Default implementation of DeclHandler interface. */
- //@{
- /**
- * Report an element type declaration.
- *
- * <p>The content model will consist of the string "EMPTY", the string
- * "ANY", or a parenthesised group, optionally followed by an occurrence
- * indicator. The model will be normalized so that all parameter entities
- * are fully resolved and all whitespace is removed,and will include the
- * enclosing parentheses. Other normalization (such as removing redundant
- * parentheses or simplifying occurrence indicators) is at the discretion
- * of the parser.</p>
- *
- * @param name The element type name.
- * @param model The content model as a normalized string.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- virtual void elementDecl
- (
- const XMLCh* const name
- , const XMLCh* const model
- );
- /**
- * Report an attribute type declaration.
- *
- * <p>Only the effective (first) declaration for an attribute will
- * be reported.</p>
- *
- * @param eName The name of the associated element.
- * @param aName The name of the attribute.
- * @param type A string representing the attribute type.
- * @param mode A string representing the attribute defaulting mode ("#IMPLIED", "#REQUIRED", or "#FIXED") or null if none of these applies.
- * @param value A string representing the attribute's default value, or null if there is none.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- virtual void attributeDecl
- (
- const XMLCh* const eName
- , const XMLCh* const aName
- , const XMLCh* const type
- , const XMLCh* const mode
- , const XMLCh* const value
- );
- /**
- * Report an internal entity declaration.
- *
- * <p>Only the effective (first) declaration for each entity will be
- * reported. All parameter entities in the value will be expanded, but
- * general entities will not.</p>
- *
- * @param name The name of the entity. If it is a parameter entity, the name will begin with '%'.
- * @param value The replacement text of the entity.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- virtual void internalEntityDecl
- (
- const XMLCh* const name
- , const XMLCh* const value
- );
- /**
- * Report a parsed external entity declaration.
- *
- * <p>Only the effective (first) declaration for each entity will
- * be reported.</p>
- *
- * @param name The name of the entity. If it is a parameter entity, the name will begin with '%'.
- * @param publicId The The declared public identifier of the entity, or null if none was declared.
- * @param systemId The declared system identifier of the entity.
- * @exception SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- virtual void externalEntityDecl
- (
- const XMLCh* const name
- , const XMLCh* const publicId
- , const XMLCh* const systemId
- );
- //@}
- };
- // ---------------------------------------------------------------------------
- // HandlerBase: Inline default implementations
- // ---------------------------------------------------------------------------
- inline void DefaultHandler::characters(const XMLCh* const
- ,const unsigned int)
- {
- }
- inline void DefaultHandler::endDocument()
- {
- }
- inline void DefaultHandler::endElement(const XMLCh* const
- , const XMLCh* const
- , const XMLCh* const)
- {
- }
- inline void DefaultHandler::error(const SAXParseException&)
- {
- }
- inline void DefaultHandler::fatalError(const SAXParseException& exception)
- {
- throw exception;
- }
- inline void
- DefaultHandler::ignorableWhitespace( const XMLCh* const
- , const unsigned int)
- {
- }
- inline void DefaultHandler::notationDecl( const XMLCh* const
- , const XMLCh* const
- , const XMLCh* const)
- {
- }
- inline void
- DefaultHandler::processingInstruction( const XMLCh* const
- , const XMLCh* const)
- {
- }
- inline void DefaultHandler::resetErrors()
- {
- }
- inline void DefaultHandler::resetDocument()
- {
- }
- inline void DefaultHandler::resetDocType()
- {
- }
- inline InputSource*
- DefaultHandler::resolveEntity( const XMLCh* const
- , const XMLCh* const)
- {
- return 0;
- }
- inline void
- DefaultHandler::unparsedEntityDecl(const XMLCh* const
- , const XMLCh* const
- , const XMLCh* const
- , const XMLCh* const)
- {
- }
- inline void DefaultHandler::setDocumentLocator(const Locator* const)
- {
- }
- inline void DefaultHandler::startDocument()
- {
- }
- inline void
- DefaultHandler::startElement( const XMLCh* const
- , const XMLCh* const
- , const XMLCh* const
- , const Attributes&
- )
- {
- }
- inline void DefaultHandler::warning(const SAXParseException&)
- {
- }
- inline void DefaultHandler::startPrefixMapping ( const XMLCh* const
- ,const XMLCh* const)
- {
- }
- inline void DefaultHandler::endPrefixMapping ( const XMLCh* const)
- {
- }
- inline void DefaultHandler::skippedEntity ( const XMLCh* const)
- {
- }
- inline void DefaultHandler::comment( const XMLCh* const
- , const unsigned int)
- {
- }
- inline void DefaultHandler::endCDATA ()
- {
- }
- inline void DefaultHandler::endDTD ()
- {
- }
- inline void DefaultHandler::endEntity (const XMLCh* const)
- {
- }
- inline void DefaultHandler::startCDATA ()
- {
- }
- inline void DefaultHandler::startDTD( const XMLCh* const
- , const XMLCh* const
- , const XMLCh* const)
- {
- }
- inline void DefaultHandler::startEntity (const XMLCh* const)
- {
- }
- inline void DefaultHandler::attributeDecl(const XMLCh* const,
- const XMLCh* const,
- const XMLCh* const,
- const XMLCh* const,
- const XMLCh* const)
- {
- }
- inline void DefaultHandler::elementDecl(const XMLCh* const,
- const XMLCh* const)
- {
- }
- inline void DefaultHandler::externalEntityDecl(const XMLCh* const,
- const XMLCh* const,
- const XMLCh* const)
- {
- }
- inline void DefaultHandler::internalEntityDecl(const XMLCh* const,
- const XMLCh* const)
- {
- }
- XERCES_CPP_NAMESPACE_END
- #endif // ! DEFAULTHANDLER_HPP