1 // Copyright 2010-2018, Google Inc. 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are 6 // met: 7 // 8 // * Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above 11 // copyright notice, this list of conditions and the following disclaimer 12 // in the documentation and/or other materials provided with the 13 // distribution. 14 // * Neither the name of Google Inc. nor the names of its 15 // contributors may be used to endorse or promote products derived from 16 // this software without specific prior written permission. 17 // 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30 #ifndef MOZC_DICTIONARY_DICTIONARY_IMPL_H_ 31 #define MOZC_DICTIONARY_DICTIONARY_IMPL_H_ 32 33 #include <memory> 34 #include <vector> 35 36 #include "base/port.h" 37 #include "base/string_piece.h" 38 #include "dictionary/dictionary_interface.h" 39 #include "dictionary/pos_matcher.h" 40 #include "dictionary/suppression_dictionary.h" 41 42 namespace mozc { 43 namespace dictionary { 44 45 class DictionaryImpl : public DictionaryInterface { 46 public: 47 // Initializes a dictionary with given dictionaries and POS data. The system 48 // and value dictionaries are owned by this class but the user dictionary is 49 // just a reference and to be deleted by the caller. Note that the user 50 // dictionary is not a const reference because this class may reload the user 51 // dictionary. 52 // TODO(noriyukit): Currently DictionaryInterface::Reload() is not used and 53 // thus user_dictionary can be const as well. We can make it const after 54 // clarifying the ownership of the user dictionary and changing code so that 55 // the owner reloads it. 56 DictionaryImpl(const DictionaryInterface *system_dictionary, 57 const DictionaryInterface *value_dictionary, 58 DictionaryInterface *user_dictionary, 59 const SuppressionDictionary *suppression_dictionary, 60 const POSMatcher *pos_matcher); 61 62 virtual ~DictionaryImpl(); 63 64 virtual bool HasKey(StringPiece key) const; 65 virtual bool HasValue(StringPiece value) const; 66 virtual void LookupPredictive(StringPiece key, 67 const ConversionRequest &conversion_request, 68 Callback *callback) const; 69 virtual void LookupPrefix(StringPiece key, 70 const ConversionRequest &conversion_request, 71 Callback *callback) const; 72 73 virtual void LookupExact(StringPiece key, 74 const ConversionRequest &conversion_request, 75 Callback *callback) const; 76 77 virtual void LookupReverse(StringPiece str, 78 const ConversionRequest &conversion_request, 79 Callback *callback) const; 80 81 virtual bool LookupComment(StringPiece key, StringPiece value, 82 const ConversionRequest &conversion_request, 83 string *comment) const; 84 virtual bool Reload(); 85 virtual void PopulateReverseLookupCache(StringPiece str) const; 86 virtual void ClearReverseLookupCache() const; 87 88 private: 89 enum LookupType { 90 PREDICTIVE, 91 PREFIX, 92 REVERSE, 93 EXACT, 94 }; 95 96 // Used to check POS IDs. 97 const POSMatcher *pos_matcher_; 98 99 // Main three dictionaries. 100 std::unique_ptr<const DictionaryInterface> system_dictionary_; 101 std::unique_ptr<const DictionaryInterface> value_dictionary_; 102 DictionaryInterface *user_dictionary_; 103 104 // Convenient container to handle the above three dictionaries as one 105 // composite dictionary. 106 std::vector<const DictionaryInterface *> dics_; 107 108 // Suppression dictionary is used to suppress entries. 109 const SuppressionDictionary *suppression_dictionary_; 110 111 DISALLOW_COPY_AND_ASSIGN(DictionaryImpl); 112 }; 113 114 } // namespace dictionary 115 } // namespace mozc 116 117 #endif // MOZC_DICTIONARY_DICTIONARY_IMPL_H_ 118