xmlentitydecl.hpp

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

/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999-2003 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: XMLEntityDecl.hpp,v $
 * Revision 1.9  2003/12/01 23:23:25  neilg
 * fix for bug 25118; thanks to Jeroen Witmond
 *
 * Revision 1.8  2003/10/10 16:23:29  peiyongz
 * Implementation of Serialization/Deserialization
 *
 * Revision 1.7  2003/05/16 21:36:55  knoaman
 * Memory manager implementation: Modify constructors to pass in the memory manager.
 *
 * Revision 1.6  2003/05/15 18:26:07  knoaman
 * Partial implementation of the configurable memory manager.
 *
 * Revision 1.5  2003/04/21 20:46:01  knoaman
 * Use XMLString::release to prepare for configurable memory manager.
 *
 * Revision 1.4  2003/03/07 18:08:10  tng
 * Return a reference instead of void for operator=
 *
 * Revision 1.3  2002/11/04 15:00:21  tng
 * C++ Namespace Support.
 *
 * Revision 1.2  2002/08/22 19:27:41  tng
 * [Bug 11448] DomCount has problems with XHTML1.1 DTD.
 *
 * Revision 1.1.1.1  2002/02/01 22:21:51  peiyongz
 * sane_include
 *
 * Revision 1.6  2000/02/24 20:00:23  abagchi
 * Swat for removing Log from API docs
 *
 * Revision 1.5  2000/02/16 23:03:48  roddey
 * More documentation updates
 *
 * Revision 1.4  2000/02/16 21:42:58  aruna1
 * API Doc++ summary changes in
 *
 * Revision 1.3  2000/02/15 01:21:30  roddey
 * Some initial documentation improvements. More to come...
 *
 * Revision 1.2  2000/02/06 07:47:48  rahulj
 * Year 2K copyright swat.
 *
 * Revision 1.1.1.1  1999/11/09 01:08:32  twl
 * Initial checkin
 *
 * Revision 1.2  1999/11/08 20:44:38  rahul
 * Swat for adding in Product name and CVS comment log variable.
 *
 */

#if !defined(XMLENTITYDECL_HPP)
#define XMLENTITYDECL_HPP

#include <xercesc/util/XMemory.hpp>
#include <xercesc/util/PlatformUtils.hpp>
#include <xercesc/util/XMLString.hpp>
#include <xercesc/internal/XSerializable.hpp>

XERCES_CPP_NAMESPACE_BEGIN

/**
 *  This class defines that core information that defines an XML entity, no
 *  matter what validator is used. Each validator will create a derivative
 *  of this class which adds any extra information it requires.
 *
 *  This class supports keyed collection semantics via the getKey() method
 *  which extracts the key field, the entity name in this case. The name will
 *  have whatever form is deemed appropriate for the type of validator in
 *  use.
 *
 *  When setting the fields of this class, you must make sure that you do
 *  not set conflicting values. For instance, an internal entity cannot have
 *  a notation name. And an external entity cannot have a value string.
 *  These rules are defined by the XML specification. In most cases, these
 *  objects are created by validator objects as they parse a DTD or Schema
 *  or whatever, at which time they confirm the correctness of the data before
 *  creating the entity decl object.
 */
class XMLPARSER_EXPORT XMLEntityDecl : public XSerializable, public XMemory
{
public:
    // -----------------------------------------------------------------------
    //  Constructors and Destructor
    // -----------------------------------------------------------------------

    /** @name Constructors */
    //@{

    /**
      *  Deafult Constructor
      */
    XMLEntityDecl(MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);

    /** Constructor with a const entity name
      *
      * @param  entName The new name to give to this entity.
      * @param  manager Pointer to the memory manager to be used to
      *                 allocate objects.
      */
    XMLEntityDecl
    (
        const   XMLCh* const    entName
        , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
    );

    /**
      * Constructor with a const entity name and value
      *
      * @param  entName The new name to give to this entity.
      * @param  value   The new value to give to this entity name.
      * @param  manager Pointer to the memory manager to be used to
      *                 allocate objects.
      */
    XMLEntityDecl
    (
        const   XMLCh* const    entName
        , const XMLCh* const    value
        , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
    );

    /**
      * Constructor with a const entity name and single XMLCh value
      *
      * @param  entName The new name to give to this entity.
      * @param  value   The new value to give to this entity name.
      * @param manager  Pointer to the memory manager to be used to
      *                 allocate objects.
      */
    XMLEntityDecl
    (
        const   XMLCh* const    entName
        , const XMLCh           value
        , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
    );
    //@}

    /** @name Destructor */
    //@{

    /**
      *  Default destructor
      */
    virtual ~XMLEntityDecl();

    //@}


    // -----------------------------------------------------------------------
    //  Virtual entity decl interface
    // -----------------------------------------------------------------------

    /** @name The pure virtual methods in this interface. */
    //@{

    /** Get the 'declared in internal subset' flag
      *
      * Gets the state of the flag which indicates whether the entity was
      * declared in the internal or external subset. Some structural
      * description languages might not have an internal subset concept, in
      * which case this will always return false.
      */
    virtual bool getDeclaredInIntSubset() const = 0;

    /** Get the 'is parameter entity' flag
      *
      * Gets the state of the flag which indicates whether this entity is
      * a parameter entity. If not, then its a general entity.
      */
    virtual bool getIsParameter() const = 0;

    /** Get the 'is special char entity' flag
      *
      * Gets the state of the flag that indicates whether this entity is
      * one of the special, intrinsically supported character entities.
      */
    virtual bool getIsSpecialChar() const = 0;

    //@}


    // -----------------------------------------------------------------------
    //  Getter methods
    // -----------------------------------------------------------------------

    /** @name Getter methods */
    //@{

    /**
      * Gets the pool id of this entity. Validators maintain all decls in
      * pools, from which they can be quickly extracted via id.
      */
    unsigned int getId() const;

    /**
      * Returns a const pointer to the name of this entity decl. This name
      * will be in whatever format is appropriate for the type of validator
      * in use.
      */
    const XMLCh* getName() const;

    /**
      * Gets the notation name, if any, declared for this entity. If this
      * entity is not a notation type entity, it will be a null pointer.
      */
    const XMLCh* getNotationName() const;

    /**
      * Gets the public id declared for this entity. Public ids are optional
      * so it can be a null pointer.
      */
    const XMLCh* getPublicId() const;

    /**
      * Gets the system id declared for this entity. The system id is required
      * so this method should never return a null pointers.
      */
    const XMLCh* getSystemId() const;

    /**
      * Gets the base URI for this entity.
      */
    const XMLCh* getBaseURI() const;

    /**
      * This method returns the value of an internal entity. If this is not
      * an internal entity (i.e. its external), then this will be a null
      * pointer.
      */
    const XMLCh* getValue() const;

    /**
     *  This method returns the number of characters in the value returned
     *  by getValue(). If this entity is external, this will be zero since
     *  an external entity has no internal value.
     */
    unsigned int getValueLen() const;