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SchemaValidatorFilter.hpp
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1 /*
2  * Copyright (c) 2001-2008
3  * DecisionSoft Limited. All rights reserved.
4  * Copyright (c) 2004-2008
5  * Oracle. All rights reserved.
6  *
7  * Licensed under the Apache License, Version 2.0 (the "License");
8  * you may not use this file except in compliance with the License.
9  * You may obtain a copy of the License at
10  *
11  * http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing, software
14  * distributed under the License is distributed on an "AS IS" BASIS,
15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16  * See the License for the specific language governing permissions and
17  * limitations under the License.
18  *
19  * $Id$
20  */
21 
22 #ifndef _SCHEMAVALIDATORFILTER_HPP
23 #define _SCHEMAVALIDATORFILTER_HPP
24 
25 #include <vector>
26 
28 
29 #include <xercesc/framework/XMLDocumentHandler.hpp>
30 #include <xercesc/framework/XMLErrorReporter.hpp>
31 #include <xercesc/validators/schema/SchemaValidator.hpp>
32 #include <xercesc/validators/schema/identity/IdentityConstraintHandler.hpp>
33 #include <xercesc/internal/XMLScanner.hpp>
34 #include <xercesc/util/RefHash3KeysIdPool.hpp>
35 
36 class DynamicContext;
38 
39 #if _XERCES_VERSION < 30000
40 typedef XMLSSize_t XMLFileLoc;
41 #endif
42 
50 class XQILLA_API SchemaValidatorFilter : public EventFilter,
51  private XERCES_CPP_NAMESPACE_QUALIFIER XMLScanner,
52  private XERCES_CPP_NAMESPACE_QUALIFIER XMLDocumentHandler,
53  private XERCES_CPP_NAMESPACE_QUALIFIER XMLErrorReporter
54 {
55 public:
56  SchemaValidatorFilter(bool strictValidation, EventHandler *next, XERCES_CPP_NAMESPACE_QUALIFIER GrammarResolver *grammarResolver,
57  XERCES_CPP_NAMESPACE_QUALIFIER MemoryManager *mm, const LocationInfo *info);
58  virtual ~SchemaValidatorFilter();
59 
60  void reset();
61 
62  virtual void startDocumentEvent(const XMLCh *documentURI, const XMLCh *encoding);
63  virtual void endDocumentEvent();
64  virtual void startElementEvent(const XMLCh *prefix, const XMLCh *uri, const XMLCh *localname);
65  virtual void endElementEvent(const XMLCh *prefix, const XMLCh *uri, const XMLCh *localname,
66  const XMLCh *typeURI, const XMLCh *typeName);
67  virtual void piEvent(const XMLCh *target, const XMLCh *value);
68  virtual void textEvent(const XMLCh *value);
69  virtual void textEvent(const XMLCh *chars, unsigned int length);
70  virtual void commentEvent(const XMLCh *value);
71  virtual void attributeEvent(const XMLCh *prefix, const XMLCh *uri, const XMLCh *localname, const XMLCh *value,
72  const XMLCh *typeURI, const XMLCh *typeName);
73  virtual void namespaceEvent(const XMLCh *prefix, const XMLCh *uri);
74 
75 private:
76  // XMLScanner
77  virtual const XMLCh *getName() const { return 0; }
78  virtual XERCES_CPP_NAMESPACE_QUALIFIER NameIdPool<XERCES_CPP_NAMESPACE_QUALIFIER DTDEntityDecl> *getEntityDeclPool() { return 0; }
79  virtual const XERCES_CPP_NAMESPACE_QUALIFIER NameIdPool<XERCES_CPP_NAMESPACE_QUALIFIER DTDEntityDecl> *getEntityDeclPool() const { return 0; }
80 #if _XERCES_VERSION < 30100
81  virtual unsigned int resolveQName(const XMLCh *const qName, XERCES_CPP_NAMESPACE_QUALIFIER XMLBuffer &prefixBufToFill,
82  const short mode, int &prefixColonPos);
83 #endif
84  virtual void scanDocument(const XERCES_CPP_NAMESPACE_QUALIFIER InputSource &src) {}
85  virtual bool scanNext(XERCES_CPP_NAMESPACE_QUALIFIER XMLPScanToken &toFill) { return false; }
86  virtual XERCES_CPP_NAMESPACE_QUALIFIER Grammar *loadGrammar(const XERCES_CPP_NAMESPACE_QUALIFIER InputSource &src,
87  const short grammarType, const bool toCache) { return 0; }
88 
89  virtual void scanCDSection() {}
90  virtual void scanCharData(XERCES_CPP_NAMESPACE_QUALIFIER XMLBuffer &toToUse) {}
91  virtual EntityExpRes scanEntityRef(const bool inAttVal, XMLCh &firstCh, XMLCh &secondCh,
92  bool &escaped) { return EntityExp_Returned; }
93  virtual void scanDocTypeDecl() {}
94  virtual void scanReset(const XERCES_CPP_NAMESPACE_QUALIFIER InputSource &src) {}
95  virtual void sendCharData(XERCES_CPP_NAMESPACE_QUALIFIER XMLBuffer &toSend) {}
96 
97  // XMLDocumentHandler
98  virtual void startDocument() {}
99  virtual void endDocument() {}
100  virtual void resetDocument() {}
101 #if _XERCES_VERSION >= 30000
102  virtual void startElement(const XERCES_CPP_NAMESPACE_QUALIFIER XMLElementDecl& elemDecl, const unsigned int urlId,
103  const XMLCh* const elemPrefix,
104  const XERCES_CPP_NAMESPACE_QUALIFIER RefVectorOf<XERCES_CPP_NAMESPACE_QUALIFIER XMLAttr>& attrList,
105  const XMLSize_t attrCount, const bool isEmpty, const bool isRoot) {}
106  virtual void docCharacters(const XMLCh* const chars, const XMLSize_t length, const bool cdataSection);
107  virtual void ignorableWhitespace(const XMLCh* const chars, const XMLSize_t length, const bool cdataSection) {}
108 #else
109  virtual void startElement(const XERCES_CPP_NAMESPACE_QUALIFIER XMLElementDecl& elemDecl, const unsigned int urlId,
110  const XMLCh* const elemPrefix,
111  const XERCES_CPP_NAMESPACE_QUALIFIER RefVectorOf<XERCES_CPP_NAMESPACE_QUALIFIER XMLAttr>& attrList,
112  const unsigned int attrCount, const bool isEmpty, const bool isRoot) {}
113  virtual void docCharacters(const XMLCh* const chars, const unsigned int length, const bool cdataSection);
114  virtual void ignorableWhitespace(const XMLCh* const chars, const unsigned int length, const bool cdataSection) {}
115 #endif
116  virtual void endElement(const XERCES_CPP_NAMESPACE_QUALIFIER XMLElementDecl& elemDecl, const unsigned int urlId,
117  const bool isRoot, const XMLCh* const elemPrefix=0) {}
118  virtual void docComment(const XMLCh* const comment) {}
119  virtual void docPI(const XMLCh* const target, const XMLCh* const data) {}
120  virtual void startEntityReference(const XERCES_CPP_NAMESPACE_QUALIFIER XMLEntityDecl& entDecl) {}
121  virtual void endEntityReference(const XERCES_CPP_NAMESPACE_QUALIFIER XMLEntityDecl& entDecl) {}
122  virtual void XMLDecl(const XMLCh* const versionStr, const XMLCh* const encodingStr, const XMLCh* const standaloneStr,
123  const XMLCh* const actualEncodingStr) {}
124 
125  // XMLErrorReporter
126  virtual void resetErrors() {}
127  virtual void error(const unsigned int errCode, const XMLCh* const errDomain, const XMLErrorReporter::ErrTypes type, const XMLCh* const errorText,
128  const XMLCh* const systemId, const XMLCh* const publicId, const XMLFileLoc lineNum, const XMLFileLoc colNum);
129 
130 private:
131  void processStartElement();
132  void processAttrs(XERCES_CPP_NAMESPACE_QUALIFIER XMLElementDecl *elemDecl);
133 
134  bool switchGrammar(const XMLCh *uri);
135  bool laxElementValidation(XERCES_CPP_NAMESPACE_QUALIFIER QName* element,
136  XERCES_CPP_NAMESPACE_QUALIFIER ContentLeafNameTypeVector* cv,
137  const XERCES_CPP_NAMESPACE_QUALIFIER XMLContentModel *cm,
138  unsigned int parentElemDepth);
139  bool anyAttributeValidation(XERCES_CPP_NAMESPACE_QUALIFIER SchemaAttDef* attWildCard, unsigned int uriId, bool& skipThisOne, bool& laxThisOne);
140  XERCES_CPP_NAMESPACE_QUALIFIER XMLElementDecl *createElementDecl(unsigned int uriId, unsigned int currentScope,
141  bool laxThisOne);
142 
143  const LocationInfo *info_;
144 
145  XERCES_CPP_NAMESPACE_QUALIFIER SchemaValidator *fSchemaValidator;
146  XERCES_CPP_NAMESPACE_QUALIFIER SchemaGrammar *fSchemaGrammar;
147  XERCES_CPP_NAMESPACE_QUALIFIER XMLBuffer fContent;
148  XERCES_CPP_NAMESPACE_QUALIFIER IdentityConstraintHandler *fICHandler;
149  XERCES_CPP_NAMESPACE_QUALIFIER RefHash3KeysIdPool<XERCES_CPP_NAMESPACE_QUALIFIER SchemaElementDecl> *fElemNonDeclPool;
150 
151  bool strictValidation_;
152  bool errorOccurred_;
153 
154  XERCES_CPP_NAMESPACE_QUALIFIER ElemStack::StackElem *parentStack_;
155  unsigned int elemDepth_;
156  XERCES_CPP_NAMESPACE_QUALIFIER XMLBuffer prefix_;
157  XERCES_CPP_NAMESPACE_QUALIFIER XMLBuffer uri_;
158  XERCES_CPP_NAMESPACE_QUALIFIER XMLBuffer localname_;
159  bool elementToProcess_;
160  const XMLCh *xsiType_;
161  unsigned int attrCount_;
162 };
163 
164 #endif