xmlvalidator.hpp

基于属性证书的访问控制源代码,由c++编写,包括openssl,xercesc等

      * datatype related validation.
      *
      * If the value breaks any rules as defined by the derived class, it
      * should just issue errors as usual.
      */
    virtual void validateAttrValue
    (
        const   XMLAttDef*                  attDef
        , const XMLCh* const                attrValue
        , bool                              preValidation = false
        , const XMLElementDecl*             elemDecl = 0
    ) = 0;

    /**
      * The derived class should apply any rules to the passed element decl
      * that are above and beyond those defined by XML 1.0.
      *
      * If the value breaks any rules as defined by the derived class, it
      * should just issue errors as usual.
      */
    virtual void validateElement
    (
        const   XMLElementDecl*             elemDef
    ) = 0;

    /**
      * Retrieve the Grammar used
      */
    virtual Grammar* getGrammar() const =0;

    /**
      * Set the Grammar
      */
    virtual void setGrammar(Grammar* aGrammar) =0;


    //@}

    // -----------------------------------------------------------------------
    //  Virtual DTD handler interface.
    // -----------------------------------------------------------------------

    /** @name Virtual DTD handler interface */
    //@{

    /**
      * This method allows the scanner to ask the validator if it handles
      * DTDs or not.
      */
    virtual bool handlesDTD() const = 0;

    // -----------------------------------------------------------------------
    //  Virtual Schema handler interface.
    // -----------------------------------------------------------------------

    /** @name Virtual Schema handler interface */

    /**
      * This method allows the scanner to ask the validator if it handles
      * Schema or not.
      */
    virtual bool handlesSchema() const = 0;

    //@}

    // -----------------------------------------------------------------------
    //  Setter methods
    //
    //  setScannerInfo() is called by the scanner to tell the validator
    //  about the stuff it needs to have access to.
    // -----------------------------------------------------------------------

    /** @name Setter methods */
    //@{

    /**
      * @param  owningScanner   This is a pointer to the scanner to which the
      *                         validator belongs. The validator will often
      *                         need to query state data from the scanner.
      *
      * @param  readerMgr       This is a pointer to the reader manager that is
      *                         being used by the scanner.
      *
      * @param  bufMgr          This is the buffer manager of the scanner. This
      *                         is provided as a convenience so that the validator
      *                         doesn't have to create its own buffer manager
      *                         during the parse process.
      */
    void setScannerInfo
    (
        XMLScanner* const           owningScanner
        , ReaderMgr* const          readerMgr
        , XMLBufferMgr* const       bufMgr
    );

    /**
      * This method is called to set an error reporter on the validator via
      * which it will report any errors it sees during parsing or validation.
      * This is generally called by the owning scanner.
      *
      * @param  errorReporter   A pointer to the error reporter to use. This
      *                         is not adopted, just referenced so the caller
      *                         remains responsible for its cleanup, if any.
      */
    void setErrorReporter
    (
        XMLErrorReporter* const errorReporter
    );

    //@}


    // -----------------------------------------------------------------------
    //  Error emitter methods
    // -----------------------------------------------------------------------

    /** @name Error emittor methods */
    //@{

    /**
     *  This call is a convenience by which validators can emit errors. Most
     *  of the grunt work of loading the text, getting the current source
     *  location, ect... is handled here.
     *
     *  If the loaded text has replacement parameters, then text strings can be
     *  passed. These will be used to replace the tokens {0}, {1}, {2}, and {3}
     *  in the order passed. So text1 will replace {0}, text2 will replace {1},
     *  and so forth.
     *
     *  textX   Up to four replacement parameters. They can be provided
     *          as either XMLCh strings, or local code page strings which
     *          will be transcoded internally.
     *
     *  @param toEmit   The error code to emit. it must be one of the defined
     *                  validator error codes.
     *
     */
    void emitError(const XMLValid::Codes toEmit);
    void emitError
    (
        const   XMLValid::Codes toEmit
        , const XMLCh* const    text1
        , const XMLCh* const    text2 = 0
        , const XMLCh* const    text3 = 0
        , const XMLCh* const    text4 = 0
    );
    void emitError
    (
        const   XMLValid::Codes toEmit
        , const char* const     text1
        , const char* const     text2 = 0
        , const char* const     text3 = 0
        , const char* const     text4 = 0
    );

    //@}

    // -----------------------------------------------------------------------
    //  Deprecated XMLValidator interface
    // -----------------------------------------------------------------------
    /**
      *
      * DEPRECATED.
      * For those validators that contrain the possible root elements of a
      * document to only particular elements, they should use this call to
      * validate that the passed root element id is a legal root element.
      */
    bool checkRootElement
    (
        const   unsigned int
    ) { return true;};

    // -----------------------------------------------------------------------
    //  Notification that lazy data has been deleted
    // -----------------------------------------------------------------------
	static void reinitMsgMutex();

	static void reinitMsgLoader();

protected :
    // -----------------------------------------------------------------------
    //  Hidden constructors
    // -----------------------------------------------------------------------
    XMLValidator
    (
        XMLErrorReporter* const errReporter = 0
    );


    // -----------------------------------------------------------------------
    //  Protected getters
    // -----------------------------------------------------------------------
    const XMLBufferMgr* getBufMgr() const;
    XMLBufferMgr* getBufMgr();
    const ReaderMgr* getReaderMgr() const;
    ReaderMgr* getReaderMgr();
    const XMLScanner* getScanner() const;
    XMLScanner* getScanner();


private :
    // -----------------------------------------------------------------------
    //  Unimplemented Constructors and Operators
    // -----------------------------------------------------------------------
    XMLValidator(const XMLValidator&);
    XMLValidator& operator=(const XMLValidator&);


    // -----------------------------------------------------------------------
    //  Private data members
    //
    //  fErrorReporter
    //      The error reporter we are to use, if any.
    //
    // -----------------------------------------------------------------------
    XMLBufferMgr*       fBufMgr;
    XMLErrorReporter*   fErrorReporter;
    ReaderMgr*          fReaderMgr;
    XMLScanner*         fScanner;
};


// -----------------------------------------------------------------------
//  Setter methods
// -----------------------------------------------------------------------
inline void
XMLValidator::setScannerInfo(XMLScanner* const      owningScanner
                            , ReaderMgr* const      readerMgr
                            , XMLBufferMgr* const   bufMgr)
{
    // We don't own any of these, we just reference them
    fScanner = owningScanner;
    fReaderMgr = readerMgr;
    fBufMgr = bufMgr;
}

inline void
XMLValidator::setErrorReporter(XMLErrorReporter* const errorReporter)
{
    fErrorReporter = errorReporter;
}


// ---------------------------------------------------------------------------
//  XMLValidator: Protected getter
// ---------------------------------------------------------------------------
inline const XMLBufferMgr* XMLValidator::getBufMgr() const
{
    return fBufMgr;
}

inline XMLBufferMgr* XMLValidator::getBufMgr()
{
    return fBufMgr;
}

inline const ReaderMgr* XMLValidator::getReaderMgr() const
{
    return fReaderMgr;
}

inline ReaderMgr* XMLValidator::getReaderMgr()
{
    return fReaderMgr;
}

inline const XMLScanner* XMLValidator::getScanner() const
{
    return fScanner;
}

inline XMLScanner* XMLValidator::getScanner()
{
    return fScanner;
}

XERCES_CPP_NAMESPACE_END

#endif