source: NonGTP/Xerces/xerces-c_2_8_0/include/xercesc/util/EncodingValidator.hpp @ 2674

Revision 2674, 3.1 KB checked in by mattausch, 16 years ago (diff)
Line 
1/*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements.  See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License.  You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18/*
19 * $Id: EncodingValidator.hpp 568078 2007-08-21 11:43:25Z amassari $
20 */
21
22#if !defined(ENCODINGVALIDATOR_HPP)
23#define ENCODINGVALIDATOR_HPP
24
25// ---------------------------------------------------------------------------
26//  Includes
27// ---------------------------------------------------------------------------
28#include <xercesc/util/ValueHashTableOf.hpp>
29
30XERCES_CPP_NAMESPACE_BEGIN
31
32/**
33  * A singleton class that checks whether an encoding name is a valid IANA
34  * encoding
35  */
36
37class XMLUTIL_EXPORT EncodingValidator {
38
39public:
40    // -----------------------------------------------------------------------
41    //  Validation methods
42    // -----------------------------------------------------------------------
43    bool isValidEncoding(const XMLCh* const encName);
44
45    // -----------------------------------------------------------------------
46    //  Instance methods
47    // -----------------------------------------------------------------------
48        static EncodingValidator* instance();
49
50        // -----------------------------------------------------------------------
51    //  Notification that lazy data has been deleted
52    // -----------------------------------------------------------------------
53        static void reinitInstance();
54
55private:
56    // -----------------------------------------------------------------------
57    //  Constructor and destructors
58    // -----------------------------------------------------------------------
59    EncodingValidator();
60    ~EncodingValidator();
61
62    // -----------------------------------------------------------------------
63    //  Private Helpers methods
64    // -----------------------------------------------------------------------
65    /*
66     *  Initializes the registry with a set of valid IANA encoding names
67     */
68     void initializeRegistry();
69
70    // -----------------------------------------------------------------------
71    //  Private data members
72    //
73    //  fEncodingRegistry
74    //      Contains a set of IANA encoding names
75        //
76    //  fInstance
77    //      An EncodingValidator singleton instance
78    // -----------------------------------------------------------------------
79    ValueHashTableOf<bool>*   fEncodingRegistry;
80    static EncodingValidator* fInstance;
81    friend class XMLInitializer;
82};
83
84XERCES_CPP_NAMESPACE_END
85
86#endif
87
88/**
89  *     End file EncodingValidator.hpp
90  */
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