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ICUBridgeCollationCompareFunctorImpl.hpp

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00001 /*
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00013  *    notice, this list of conditions and the following disclaimer. 
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00057 
00058 #if !defined(ICUBRIDGE_COLLATIONCOMPAREFUNCTORIMPL_GUARD_1357924680)
00059 #define ICUBRIDGE_COLLATIONCOMPAREFUNCTORIMPL_GUARD_1357924680
00060 
00061 
00062 
00063 #include <xalanc/ICUBridge/ICUBridgeDefinitions.hpp>
00064 
00065 
00066 
00067 #include <list>
00068 
00069 
00070 
00071 #include <xalanc/XSLT/StylesheetExecutionContextDefault.hpp>
00072 
00073 
00074 
00075 #include <unicode/coll.h>
00076 
00077 
00078 
00079 
00080 XALAN_CPP_NAMESPACE_BEGIN
00081 
00082 
00083 
00084 class XALAN_ICUBRIDGE_EXPORT ICUBridgeCollationCompareFunctorImpl : public StylesheetExecutionContextDefault::CollationCompareFunctor
00085 {
00086 public:
00087 
00088     typedef StylesheetExecutionContextDefault::eCaseOrder   eCaseOrder;
00089 
00090 
00096     ICUBridgeCollationCompareFunctorImpl(bool   fCacheCollators = false);
00097 
00098     ~ICUBridgeCollationCompareFunctorImpl();
00099 
00100     int
00101 	operator()(
00102             const XalanDOMChar*     theLHS,
00103             const XalanDOMChar*     theRHS,
00104             eCaseOrder              theCaseOrder = StylesheetExecutionContextDefault::eDefault) const;
00105 
00106     int
00107 	operator()(
00108             const XalanDOMChar*     theLHS,
00109             const XalanDOMChar*     theRHS,
00110             const XalanDOMChar*     theLocale,
00111             eCaseOrder              theCaseOrder = StylesheetExecutionContextDefault::eDefault) const;
00112 
00113     bool
00114     isValid() const
00115     {
00116         return m_isValid;
00117     }
00118 
00119 #if defined(XALAN_HAS_CPP_NAMESPACE)
00120     typedef U_ICU_NAMESPACE::Collator   CollatorType;
00121 #else
00122     typedef Collator                    CollatorType;
00123 #endif
00124 
00125     struct CollationCacheStruct
00126     {
00127         CollationCacheStruct(
00128                 const XalanDOMString&   theLocale,
00129                 CollatorType*           theCollator) :
00130             m_locale(theLocale),
00131             m_collator(theCollator)
00132         {
00133         }
00134 
00135         CollationCacheStruct() :
00136             m_locale(),
00137             m_collator(0)
00138         {
00139         }
00140 
00141         void
00142         swap(CollationCacheStruct&  theOther)
00143         {
00144             m_locale.swap(theOther.m_locale);
00145 
00146             CollatorType* const     theTemp = m_collator;
00147 
00148             m_collator = theOther.m_collator;
00149 
00150             theOther.m_collator = theTemp;
00151         }
00152 
00153 #if defined(XALAN_NO_SELECTIVE_TEMPLATE_INSTANTIATION)
00154         bool
00155         operator<(const CollationCacheStruct&  theRHS) const
00156         {
00157             return this < &theRHS;
00158         }
00159 
00160         bool
00161         operator==(const CollationCacheStruct&  theRHS) const
00162         {
00163             return this == &theRHS;
00164         }
00165 #endif
00166 
00167         XalanDOMString  m_locale;
00168 
00169         CollatorType*   m_collator;
00170 
00171         struct CollatorDeleteFunctor
00172         {
00173             void
00174             operator()(CollationCacheStruct&    theStruct) const
00175             {
00176                 delete theStruct.m_collator;
00177             }
00178         };
00179 
00180         struct CollatorFindFunctor
00181         {
00182             CollatorFindFunctor(const XalanDOMChar* theLocale) :
00183                 m_locale(theLocale)
00184             {
00185             }
00186 
00187             bool
00188             operator()(CollationCacheStruct&    theStruct) const
00189             {
00190                 return XalanDOMString::equals(theStruct.m_locale ,m_locale);
00191             }
00192 
00193             const XalanDOMChar* const   m_locale;
00194         };
00195     };
00196 
00197 #if defined(XALAN_NO_STD_NAMESPACE)
00198     typedef list<CollationCacheStruct>          CollatorCacheListType;
00199 #else
00200     typedef std::list<CollationCacheStruct>     CollatorCacheListType;
00201 #endif
00202 
00203     enum { eCacheMax = 10 };
00204 
00205 private:
00206 
00207     int
00208     doDefaultCompare(
00209             const XalanDOMChar*     theLHS,
00210             const XalanDOMChar*     theRHS) const;
00211 
00212     int
00213     doCompare(
00214             const XalanDOMChar*     theLHS,
00215             const XalanDOMChar*     theRHS,
00216             const XalanDOMChar*     theLocale,
00217             eCaseOrder              theCaseOrder) const;
00218 
00219     int
00220     doCompareCached(
00221             const XalanDOMChar*     theLHS,
00222             const XalanDOMChar*     theRHS,
00223             const XalanDOMChar*     theLocale,
00224             eCaseOrder              theCaseOrder) const;
00225 
00226     int
00227     doCompare(
00228             const CollatorType&     theCollator,
00229             const XalanDOMChar*     theLHS,
00230             const XalanDOMChar*     theRHS) const;
00231 
00232     int
00233     doCompare(
00234             CollatorType&           theCollator,
00235             const XalanDOMChar*     theLHS,
00236             const XalanDOMChar*     theRHS,
00237             eCaseOrder              theCaseOrder) const;
00238 
00239     CollatorType*
00240     getCachedCollator(const XalanDOMChar*   theLocale) const;
00241 
00242     void
00243     cacheCollator(
00244             CollatorType*           theCollator,
00245             const XalanDOMChar*     theLocale) const;
00246 
00247 
00248     // Data members...
00249     bool                            m_isValid;
00250 
00251     CollatorType*                   m_defaultCollator;
00252 
00253     XalanDOMString                  m_defaultCollatorLocaleName;
00254 
00255     bool                            m_cacheCollators;
00256 
00257     mutable CollatorCacheListType   m_collatorCache;
00258 
00259     static const StylesheetExecutionContextDefault::DefaultCollationCompareFunctor  s_defaultFunctor;
00260 };
00261 
00262 
00263 
00264 XALAN_CPP_NAMESPACE_END
00265 
00266 
00267 
00268 #endif  // ICUBRIDGE_COLLATIONCOMPAREFUNCTORIMPL_GUARD_1357924680

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