00001 /* 00002 * Copyright 1999-2004 The Apache Software Foundation. 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 #if !defined(XPATHEXECUTIONCONTEXTDEFAULT_HEADER_GUARD_1357924680) 00017 #define XPATHEXECUTIONCONTEXTDEFAULT_HEADER_GUARD_1357924680 00018 00019 00020 00021 // Base include file. Must be first. 00022 #include <xalanc/XPath/XPathDefinitions.hpp> 00023 00024 00025 00026 #include <deque> 00027 00028 00029 00030 #include <xalanc/Include/XalanObjectCache.hpp> 00031 00032 00033 00034 #include <xalanc/XalanDOM/XalanDOMString.hpp> 00035 00036 00037 00041 // Base class include file. 00042 #include <xalanc/XPath/XPathExecutionContext.hpp> 00043 00044 00045 00046 #include <xalanc/PlatformSupport/XalanDOMStringCache.hpp> 00047 00048 00049 00050 #include <xalanc/XPath/MutableNodeRefList.hpp> 00051 #include <xalanc/XPath/XalanQNameByValue.hpp> 00052 00053 00054 00055 XALAN_CPP_NAMESPACE_BEGIN 00056 00057 00058 00059 class DOMSupport; 00060 class XPathEnvSupport; 00061 class XalanQName; 00062 00063 00064 00068 class XALAN_XPATH_EXPORT XPathExecutionContextDefault : public XPathExecutionContext 00069 { 00070 public: 00071 00072 #if defined(XALAN_NO_STD_NAMESPACE) 00073 typedef deque<XalanNode*> CurrentNodeStackType; 00074 typedef deque<const NodeRefListBase*> ContextNodeListStackType; 00075 #else 00076 typedef std::deque<XalanNode*> CurrentNodeStackType; 00077 typedef std::deque<const NodeRefListBase*> ContextNodeListStackType; 00078 #endif 00079 00090 XPathExecutionContextDefault( 00091 XPathEnvSupport& theXPathEnvSupport, 00092 DOMSupport& theDOMSupport, 00093 XObjectFactory& theXObjectFactory, 00094 XalanNode* theCurrentNode = 0, 00095 const NodeRefListBase* theContextNodeList = 0, 00096 const PrefixResolver* thePrefixResolver = 0); 00097 00107 explicit 00108 XPathExecutionContextDefault( 00109 XalanNode* theCurrentNode = 0, 00110 const NodeRefListBase* theContextNodeList = 0, 00111 const PrefixResolver* thePrefixResolver = 0); 00112 00113 virtual 00114 ~XPathExecutionContextDefault(); 00115 00116 00122 XPathEnvSupport* 00123 getXPathEnvSupport() const 00124 { 00125 return m_xpathEnvSupport; 00126 } 00127 00133 void 00134 setXPathEnvSupport(XPathEnvSupport* theSupport) 00135 { 00136 m_xpathEnvSupport = theSupport; 00137 } 00138 00144 void 00145 setDOMSupport(DOMSupport* theDOMSupport) 00146 { 00147 m_domSupport = theDOMSupport; 00148 } 00149 00155 void 00156 setXObjectFactory(XObjectFactory* theXObjectFactory) 00157 { 00158 m_xobjectFactory = theXObjectFactory; 00159 } 00160 00166 XalanQNameByValue& 00167 getScratchQName() const 00168 { 00169 #if defined(XALAN_NO_MUTABLE) 00170 return ((XPathExecutionContextDefault*)this)->m_scratchQName; 00171 #else 00172 return m_scratchQName; 00173 #endif 00174 } 00175 00176 virtual void doFormatNumber( 00177 double number, 00178 const XalanDOMString& pattern, 00179 const XalanDecimalFormatSymbols* theDFS, 00180 XalanDOMString& theResult, 00181 const XalanNode* context = 0, 00182 const LocatorType* locator = 0); 00183 00184 // These interfaces are inherited from XPathExecutionContext... 00185 00186 virtual void 00187 reset(); 00188 00189 virtual XalanNode* 00190 getCurrentNode() const; 00191 00192 virtual void 00193 pushCurrentNode(XalanNode* theCurrentNode); 00194 00195 virtual void 00196 popCurrentNode(); 00197 00198 virtual bool 00199 isNodeAfter( 00200 const XalanNode& node1, 00201 const XalanNode& node2) const; 00202 00203 virtual void 00204 pushContextNodeList(const NodeRefListBase& theList); 00205 00206 virtual void 00207 popContextNodeList(); 00208 00209 virtual const NodeRefListBase& 00210 getContextNodeList() const; 00211 00212 virtual size_type 00213 getContextNodeListLength() const; 00214 00215 virtual size_type 00216 getContextNodeListPosition(const XalanNode& contextNode) const; 00217 00218 virtual bool 00219 elementAvailable(const XalanQName& theQName) const; 00220 00221 virtual bool 00222 elementAvailable( 00223 const XalanDOMString& theName, 00224 const LocatorType* locator) const; 00225 00226 virtual bool 00227 functionAvailable(const XalanQName& theQName) const; 00228 00229 virtual bool 00230 functionAvailable( 00231 const XalanDOMString& theName, 00232 const LocatorType* locator) const; 00233 00234 virtual const XObjectPtr 00235 extFunction( 00236 const XalanDOMString& theNamespace, 00237 const XalanDOMString& functionName, 00238 XalanNode* context, 00239 const XObjectArgVectorType& argVec, 00240 const LocatorType* locator); 00241 00242 virtual XalanDocument* 00243 parseXML( 00244 const XalanDOMString& urlString, 00245 const XalanDOMString& base) const; 00246 00247 virtual MutableNodeRefList* 00248 borrowMutableNodeRefList(); 00249 00250 virtual bool 00251 returnMutableNodeRefList(MutableNodeRefList* theList); 00252 00253 virtual MutableNodeRefList* 00254 createMutableNodeRefList() const; 00255 00256 virtual XalanDOMString& 00257 getCachedString(); 00258 00259 virtual bool 00260 releaseCachedString(XalanDOMString& theString); 00261 00262 virtual void 00263 getNodeSetByKey( 00264 XalanDocument* doc, 00265 const XalanQName& qname, 00266 const XalanDOMString& ref, 00267 MutableNodeRefList& nodelist); 00268 00269 virtual void 00270 getNodeSetByKey( 00271 XalanDocument* doc, 00272 const XalanDOMString& name, 00273 const XalanDOMString& ref, 00274 const LocatorType* locator, 00275 MutableNodeRefList& nodelist); 00276 00277 virtual const XObjectPtr 00278 getVariable( 00279 const XalanQName& name, 00280 const LocatorType* locator = 0); 00281 00282 virtual const PrefixResolver* 00283 getPrefixResolver() const; 00284 00285 virtual void 00286 setPrefixResolver(const PrefixResolver* thePrefixResolver); 00287 00288 virtual const XalanDOMString* 00289 getNamespaceForPrefix(const XalanDOMString& prefix) const; 00290 00291 virtual XalanDOMString 00292 findURIFromDoc(const XalanDocument* owner) const; 00293 00294 virtual const XalanDOMString& 00295 getUnparsedEntityURI( 00296 const XalanDOMString& theName, 00297 const XalanDocument& theDocument) const; 00298 00299 virtual bool 00300 shouldStripSourceNode(const XalanText& node); 00301 00302 virtual XalanDocument* 00303 getSourceDocument(const XalanDOMString& theURI) const; 00304 00305 virtual void 00306 setSourceDocument( 00307 const XalanDOMString& theURI, 00308 XalanDocument* theDocument); 00309 00310 // These interfaces are inherited from ExecutionContext... 00311 00312 virtual void formatNumber( 00313 double number, 00314 const XalanDOMString& pattern, 00315 XalanDOMString& theResult, 00316 const XalanNode* context = 0, 00317 const LocatorType* locator = 0); 00318 00319 virtual void formatNumber( 00320 double number, 00321 const XalanDOMString& pattern, 00322 const XalanDOMString& dfsName, 00323 XalanDOMString& theResult, 00324 const XalanNode* context = 0, 00325 const LocatorType* locator = 0); 00326 00327 00328 virtual void 00329 error( 00330 const XalanDOMString& msg, 00331 const XalanNode* sourceNode = 0, 00332 const LocatorType* locator = 0) const; 00333 00334 virtual void 00335 error( 00336 const char* msg, 00337 const XalanNode* sourceNode = 0, 00338 const LocatorType* locator = 0) const; 00339 00340 virtual void 00341 warn( 00342 const XalanDOMString& msg, 00343 const XalanNode* sourceNode = 0, 00344 const LocatorType* locator = 0) const; 00345 00346 virtual void 00347 warn( 00348 const char* msg, 00349 const XalanNode* sourceNode = 0, 00350 const LocatorType* locator = 0) const; 00351 00352 virtual void 00353 message( 00354 const XalanDOMString& msg, 00355 const XalanNode* sourceNode = 0, 00356 const LocatorType* locator = 0) const; 00357 00358 virtual void 00359 message( 00360 const char* msg, 00361 const XalanNode* sourceNode = 0, 00362 const LocatorType* locator = 0) const; 00363 00364 protected: 00365 00366 typedef XalanObjectCache<MutableNodeRefList, DefaultCacheCreateFunctor<MutableNodeRefList>, DeleteFunctor<MutableNodeRefList>, ClearCacheResetFunctor<MutableNodeRefList> > NodeListCacheType; 00367 00368 enum { eNodeListCacheListSize = 50 }; 00369 00370 struct ContextNodeListPositionCache 00371 { 00372 ContextNodeListPositionCache() : 00373 m_node(0), 00374 m_index(0) 00375 { 00376 } 00377 00378 void 00379 clear() 00380 { 00381 if (m_node != 0) 00382 { 00383 m_node = 0; 00384 } 00385 } 00386 00387 const XalanNode* m_node; 00388 00389 size_type m_index; 00390 }; 00391 00392 XPathEnvSupport* m_xpathEnvSupport; 00393 00394 DOMSupport* m_domSupport; 00395 00396 CurrentNodeStackType m_currentNodeStack; 00397 00398 ContextNodeListStackType m_contextNodeListStack; 00399 00400 const PrefixResolver* m_prefixResolver; 00401 00402 XalanDOMString m_currentPattern; 00403 00404 NodeListCacheType m_nodeListCache; 00405 00406 XalanDOMStringCache m_stringCache; 00407 00408 mutable ContextNodeListPositionCache m_cachedPosition; 00409 00410 mutable XalanQNameByValue m_scratchQName; 00411 00412 static const NodeRefList s_dummyList; 00413 }; 00414 00415 00416 00417 XALAN_CPP_NAMESPACE_END 00418 00419 00420 00421 #endif // XPATHEXECUTIONCONTEXTDEFAULT_HEADER_GUARD_1357924680
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