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EncodingValidator.hpp

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00001 /*
00002  * The Apache Software License, Version 1.1
00003  *
00004  * Copyright (c) 2002 The Apache Software Foundation.  All rights
00005  * reserved.
00006  *
00007  * Redistribution and use in source and binary forms, with or without
00008  * modification, are permitted provided that the following conditions
00009  * are met:
00010  *
00011  * 1. Redistributions of source code must retain the above copyright
00012  *    notice, this list of conditions and the following disclaimer.
00013  *
00014  * 2. Redistributions in binary form must reproduce the above copyright
00015  *    notice, this list of conditions and the following disclaimer in
00016  *    the documentation and/or other materials provided with the
00017  *    distribution.
00018  *
00019  * 3. The end-user documentation included with the redistribution,
00020  *    if any, must include the following acknowledgment:
00021  *       "This product includes software developed by the
00022  *        Apache Software Foundation (http://www.apache.org/)."
00023  *    Alternately, this acknowledgment may appear in the software itself,
00024  *    if and wherever such third-party acknowledgments normally appear.
00025  *
00026  * 4. The names "Xerces" and "Apache Software Foundation" must
00027  *    not be used to endorse or promote products derived from this
00028  *    software without prior written permission. For written
00029  *    permission, please contact apache\@apache.org.
00030  *
00031  * 5. Products derived from this software may not be called "Apache",
00032  *    nor may "Apache" appear in their name, without prior written
00033  *    permission of the Apache Software Foundation.
00034  *
00035  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
00036  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00037  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00038  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
00039  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00040  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00041  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
00042  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00043  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00044  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
00045  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00046  * SUCH DAMAGE.
00047  * ====================================================================
00048  *
00049  * This software consists of voluntary contributions made by many
00050  * individuals on behalf of the Apache Software Foundation, and was
00051  * originally based on software copyright (c) 2001, International
00052  * Business Machines, Inc., http://www.ibm.com .  For more information
00053  * on the Apache Software Foundation, please see
00054  * <http://www.apache.org/>.
00055  */
00056 
00057 /*
00058  * $Id: EncodingValidator.hpp,v 1.1 2002/07/18 20:08:16 knoaman Exp $
00059  */
00060 
00061 #if !defined(ENCODINGVALIDATOR_HPP)
00062 #define ENCODINGVALIDATOR_HPP
00063 
00064 // ---------------------------------------------------------------------------
00065 //  Includes
00066 // ---------------------------------------------------------------------------
00067 #include <xercesc/util/ValueHashTableOf.hpp>
00068 
00069 
00074 
00075 class  EncodingValidator {
00076 
00077 public:
00078     // -----------------------------------------------------------------------
00079     //  Constructors and destructors
00080     // -----------------------------------------------------------------------
00081     ~EncodingValidator();
00082 
00083     // -----------------------------------------------------------------------
00084     //  Validation methods
00085     // -----------------------------------------------------------------------
00086     bool isValidEncoding(const XMLCh* const encName);
00087 
00088     // -----------------------------------------------------------------------
00089     //  Instance methods
00090     // -----------------------------------------------------------------------
00091     static EncodingValidator* instance();
00092 
00093     // -----------------------------------------------------------------------
00094     //  Notification that lazy data has been deleted
00095     // -----------------------------------------------------------------------
00096     static void reinitInstance();
00097 
00098 private:
00099     // -----------------------------------------------------------------------
00100     //  Constructor and destructors
00101     // -----------------------------------------------------------------------
00102     EncodingValidator();
00103 
00104     // -----------------------------------------------------------------------
00105     //  Private Helpers methods
00106     // -----------------------------------------------------------------------
00107     /*
00108      *  Initializes the registry with a set of valid IANA encoding names
00109      */
00110      void initializeRegistry();
00111 
00112     // -----------------------------------------------------------------------
00113     //  Private data members
00114     //
00115     //  fEncodingRegistry
00116     //      Contains a set of IANA encoding names
00117     //
00118     //  fInstance
00119     //      An EncodingValidator singleton instance
00120     // -----------------------------------------------------------------------
00121     ValueHashTableOf<bool>*   fEncodingRegistry;
00122     static EncodingValidator* fInstance;
00123 };
00124 
00125 
00126 #endif
00127 


Copyright © 2000 The Apache Software Foundation. All Rights Reserved.