i18npool/source/collator/collatorImpl.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <collatorImpl.hxx>
  21 #include <localedata.hxx>
  22 #include <com/sun/star/i18n/CollatorOptions.hpp>
  23 #include <com/sun/star/i18n/LocaleData2.hpp>
  24 #include <cppuhelper/supportsservice.hxx>
  25 #include <numeric>
  26
  27 using namespace com::sun::star;
  28 using namespace com::sun::star::i18n;
  29 using namespace com::sun::star::lang;
  30 using namespace com::sun::star::uno;
  31
  32 namespace i18npool {
  33
  34 CollatorImpl::CollatorImpl( const Reference < XComponentContext >& rxContext ) : m_xContext(rxContext)
  35 {
  36     mxLocaleData.set( LocaleData2::create(rxContext) );
  37     cachedItem = nullptr;
  38 }
  39
  40 CollatorImpl::~CollatorImpl()
  41 {
  42 }
  43
  44 sal_Int32 SAL_CALL
  45 CollatorImpl::compareSubstring( const OUString& str1, sal_Int32 off1, sal_Int32 len1,
  46     const OUString& str2, sal_Int32 off2, sal_Int32 len2)
  47 {
  48     if (cachedItem)
  49         return cachedItem->xC->compareSubstring(str1, off1, len1, str2, off2, len2);
  50
  51     sal_Unicode *unistr1 = const_cast<sal_Unicode*>(str1.getStr()) + off1;
  52     sal_Unicode *unistr2 = const_cast<sal_Unicode*>(str2.getStr()) + off2;
  53     for (int i = 0; i < len1 && i < len2; i++)
  54         if (unistr1[i] != unistr2[i])
  55             return unistr1[i] < unistr2[i] ? -1 : 1;
  56     return len1 == len2 ? 0 : (len1 < len2 ? -1 : 1);
  57 }
  58
  59 sal_Int32 SAL_CALL
  60 CollatorImpl::compareString( const OUString& in_str1, const OUString& in_str2)
  61 {
  62     if (cachedItem)
  63         return cachedItem->xC->compareString(in_str1, in_str2);
  64
  65     return CollatorImpl::compareSubstring(in_str1, 0, in_str1.getLength(), in_str2, 0, in_str2.getLength());
  66 }
  67
  68
  69 sal_Int32 SAL_CALL
  70 CollatorImpl::loadDefaultCollator(const lang::Locale& rLocale, sal_Int32 collatorOptions)
  71 {
  72     const Sequence< Implementation > &imp = mxLocaleData->getCollatorImplementations(rLocale);
  73     auto pImpl = std::find_if(imp.begin(), imp.end(),
  74         [](const Implementation& rImp) { return rImp.isDefault; });
  75     if (pImpl != imp.end())
  76         return loadCollatorAlgorithm(pImpl->unoID, rLocale, collatorOptions);
  77
  78     throw RuntimeException(); // not default is defined
  79     //return 0;
  80 }
  81
  82 sal_Int32 SAL_CALL
  83 CollatorImpl::loadCollatorAlgorithm(const OUString& impl, const lang::Locale& rLocale, sal_Int32 collatorOptions)
  84 {
  85     if (! cachedItem || ! cachedItem->equals(rLocale, impl))
  86         loadCachedCollator(rLocale, impl);
  87
  88     if (!cachedItem)
  89         throw RuntimeException(); // impl could not be loaded
  90     nLocale = rLocale;
  91     cachedItem->xC->loadCollatorAlgorithm(cachedItem->algorithm, nLocale, collatorOptions);
  92
  93     return 0;
  94 }
  95
  96 void SAL_CALL
  97 CollatorImpl::loadCollatorAlgorithmWithEndUserOption(const OUString& impl, const lang::Locale& rLocale,
  98     const Sequence< sal_Int32 >& collatorOptions)
  99 {
 100     sal_Int32 options = std::accumulate(collatorOptions.begin(), collatorOptions.end(),
 101         sal_Int32(0), [](sal_Int32 nSum, sal_Int32 nOpt) { return nSum | nOpt; });
 102     loadCollatorAlgorithm(impl, rLocale, options);
 103 }
 104
 105 Sequence< OUString > SAL_CALL
 106 CollatorImpl::listCollatorAlgorithms( const lang::Locale& rLocale )
 107 {
 108     nLocale = rLocale;
 109     const Sequence< Implementation > &imp = mxLocaleData->getCollatorImplementations(rLocale);
 110     Sequence< OUString > list(imp.getLength());
 111     auto pBegin = list.begin();
 112     auto pId = pBegin;
 113
 114     for (const auto& rImpl : imp) {
 115         *pId = rImpl.unoID;
 116         //if the current algorithm is default and the position is not on the first one, then switch
 117         if (rImpl.isDefault && pId != pBegin)
 118             std::swap(*pBegin, *pId);
 119         ++pId;
 120     }
 121     return list;
 122 }
 123
 124 Sequence< sal_Int32 > SAL_CALL
 125 CollatorImpl::listCollatorOptions( const OUString& /*collatorAlgorithmName*/ )
 126 {
 127     const Sequence< OUString > option_str = mxLocaleData->getCollationOptions(nLocale);
 128     Sequence< sal_Int32 > option_int(option_str.getLength());
 129
 130     std::transform(option_str.begin(), option_str.end(), option_int.begin(), [](const OUString& rOpt) {
 131         return rOpt == "IGNORE_CASE" ?  CollatorOptions::CollatorOptions_IGNORE_CASE :
 132                rOpt == "IGNORE_KANA" ?  CollatorOptions::CollatorOptions_IGNORE_KANA :
 133                rOpt == "IGNORE_WIDTH" ?  CollatorOptions::CollatorOptions_IGNORE_WIDTH : 0; });
 134
 135     return option_int;
 136 }
 137
 138 bool
 139 CollatorImpl::createCollator(const lang::Locale& rLocale, const OUString& serviceName, const OUString& rSortAlgorithm)
 140 {
 141     for (size_t l = 0; l < lookupTable.size(); l++) {
 142         cachedItem = lookupTable[l].get();
 143         if (cachedItem->service == serviceName) {// cross locale sharing
 144             lookupTable.emplace_back(new lookupTableItem(rLocale, rSortAlgorithm, serviceName, cachedItem->xC));
 145             cachedItem = lookupTable.back().get();
 146             return true;
 147         }
 148     }
 149     Reference < XInterface > xI =
 150         m_xContext->getServiceManager()->createInstanceWithContext("com.sun.star.i18n.Collator_" + serviceName, m_xContext );
 151
 152     if (xI.is()) {
 153         Reference < XCollator > xC;
 154         xC.set( xI, UNO_QUERY );
 155         if (xC.is()) {
 156             lookupTable.emplace_back(new lookupTableItem(rLocale, rSortAlgorithm, serviceName, xC));
 157             cachedItem = lookupTable.back().get();
 158             return true;
 159         }
 160     }
 161     return false;
 162 }
 163
 164 void
 165 CollatorImpl::loadCachedCollator(const lang::Locale& rLocale, const OUString& rSortAlgorithm)
 166 {
 167     for (const auto& i : lookupTable) {
 168         cachedItem = i.get();
 169         if (cachedItem->equals(rLocale, rSortAlgorithm)) {
 170             return;
 171         }
 172     }
 173
 174     bool bLoaded = false;
 175     if (!rSortAlgorithm.isEmpty())
 176     {
 177         // Load service with name <base>_<lang>_<country>_<algorithm> or
 178         // <base>_<bcp47>_<algorithm> and fallbacks.
 179         bLoaded = createCollator( rLocale,
 180                 LocaleDataImpl::getFirstLocaleServiceName( rLocale) + "_" + rSortAlgorithm, rSortAlgorithm);
 181         if (!bLoaded)
 182         {
 183             ::std::vector< OUString > aFallbacks( LocaleDataImpl::getFallbackLocaleServiceNames( rLocale));
 184             for (auto const& fallback : aFallbacks)
 185             {
 186                 bLoaded = createCollator( rLocale, fallback + "_" + rSortAlgorithm, rSortAlgorithm);
 187                 if (bLoaded)
 188                     break;
 189             }
 190             if (!bLoaded)
 191             {
 192                 // load service with name <base>_<algorithm>
 193                 bLoaded = createCollator( rLocale, rSortAlgorithm, rSortAlgorithm);
 194             }
 195         }
 196     }
 197     if (!bLoaded)
 198     {
 199         // load default service with name <base>_Unicode
 200         bLoaded = createCollator( rLocale, "Unicode", rSortAlgorithm);
 201         if (!bLoaded)
 202         {
 203             cachedItem = nullptr;
 204             throw RuntimeException();   // could not load any service
 205         }
 206     }
 207 }
 208
 209 OUString SAL_CALL CollatorImpl::getImplementationName()
 210 {
 211     return "com.sun.star.i18n.Collator";
 212 }
 213
 214 sal_Bool SAL_CALL CollatorImpl::supportsService(const OUString& rServiceName)
 215 {
 216     return cppu::supportsService(this, rServiceName);
 217 }
 218
 219 Sequence< OUString > SAL_CALL
 220 CollatorImpl::getSupportedServiceNames()
 221 {
 222     return { "com.sun.star.i18n.Collator" };
 223 }
 224
 225 }
 226
 227 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
 228 com_sun_star_i18n_Collator_get_implementation(
 229     css::uno::XComponentContext *context,
 230     css::uno::Sequence<css::uno::Any> const &)
 231 {
 232     return cppu::acquire(new i18npool::CollatorImpl(context));
 233 }
 234
 235 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */