1 /*
2  * wsdlpull - A C++ parser  for WSDL  (Web services description language)
3  * Copyright (C) 2005-2007 Vivek Krishna
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Library General Public
7  * License as published by the Free Software Foundation; either
8  * version 2 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * Library General Public License for more details.
14  *
15  * You should have received a copy of the GNU Library General Public
16  * License along with this library; if not, write to the Free
17  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18  *
19  *
20  */
21 #ifndef _SCHEMAVALIDATORH
22 #define _SCHEMAVALIDATORH
23 
24 #include "xmlpull/wsdlpull_export.h"
25 #include "xmlpull/XmlSerializer.h"
26 #include "schemaparser/SchemaParser.h"
27 #include "schemaparser/SchemaParserException.h"
28 #include "schemaparser/TypeContainer.h"
29 
30 
31 namespace Schema {
32 
33 //class for validating a schema instance
34 class WSDLPULL_EXPORT SchemaValidator
35 {
36  public:
37   /** @name Constructors and Destructors */
38   //@{
39   /**
40    * The constructor for SchemaValidator
41    * @param pointer to the schema parser instance for the schema
42    * @param output stream to write generated instances
43    */
44   SchemaValidator(const SchemaParser * sp,
45 		  std::ostream & os = std::cout);
46   ~SchemaValidator();
47 
48   //@}
49 
50   /** @name methods for validating schema instance*/
51   //@{
52   /**
53    * @name validate
54    * @brief This is the main function to validate any type with its instance
55    * @param  XmlPullParser instance of the xml stream containing the
56    * instance of the schema type
57    * @param pointer to the type whose instance must be validated
58    * @param type container to be used (can be null)
59    * @return type container containing an instance of the schema type
60    */
61 
62   TypeContainer *validate(XmlPullParser * xpp, int typeId,
63                           TypeContainer * ipTc = 0);
64 
65   TypeContainer *validate(const std::string & val , int typeId,
66                           TypeContainer * ipTc = 0, XmlPullParser * xpp = 0); //for simple types
67   TypeContainer * validate(void* value ,int typeId,
68                            TypeContainer * ipTc = 0, XmlPullParser * xpp = 0);
69   //@}
70 
71   /** @name methods for generating a schema instance*/
72   //@{
73   /**
74    * @name instance
75    * @brief This method generates instance of a type
76    * @param The tag name of the root element
77    * @param type id of the element
78 
79   */
80   bool instance(const std::string& tag,
81 		Schema::Type type_id);
82 
83   //@}
84 
85  private:
86 
87   TypeContainer* validateContentModel(XmlPullParser * xpp,
88                                       ContentModel* cm,
89                                       TypeContainer * ipTc,
90                                       const std::string & elemName,
91 				      bool nested=false,
92 				      TypeContainer* btCnt=0);//base contentModel
93 
94   void extractSimpleType(const std::string & val, int basetype,
95                          TypeContainer * ipTc, const SimpleType * st,
96                          XmlPullParser * xpp);
97   bool    validateListOrUnion(const SimpleType* st,
98                            const std::string &val, XmlPullParser * xpp);
99 
100   bool  findElement(ContentModel::ContentsIterator start,
101                     ContentModel::ContentsIterator end,
102                     std::string name,
103                     ContentModel::ContentsIterator & found);
104   bool checkAttributeOccurence(const ComplexType* ct ,XmlPullParser* xpp);
105   void instanceCM(ContentModel *cm);
106   void error(const std::string & , XmlPullParser* xpp=0);
107   bool instance1(const std::string& tag,	Schema::Type type_id);
108 
109   XmlSerializer * xmlStream_ ;
110   std::ostream &ostr_;
111   const SchemaParser *sParser_;
112 
113 };
114 }
115 #endif
116