1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef PINYINIME_INCLUDE_SYNC_H__ 18 #define PINYINIME_INCLUDE_SYNC_H__ 19 20 #define ___SYNC_ENABLED___ 21 22 #ifdef ___SYNC_ENABLED___ 23 24 #include "userdict.h" 25 26 namespace ime_pinyin { 27 28 // Class for user dictionary synchronization 29 // This class is not thread safe 30 // Normal invoking flow will be 31 // begin() -> 32 // put_lemmas() x N -> 33 // { 34 // get_lemmas() -> 35 // [ get_last_got_count() ] -> 36 // clear_last_got() -> 37 // } x N -> 38 // finish() 39 class Sync { 40 public: 41 Sync(); 42 ~Sync(); 43 44 static const int kUserDictMaxLemmaCount = 5000; 45 static const int kUserDictMaxLemmaSize = 200000; 46 static const int kUserDictRatio = 20; 47 48 bool begin(const char * filename); 49 50 // Merge lemmas downloaded from sync server into local dictionary 51 // lemmas, lemmas string encoded in UTF16LE 52 // len, length of lemmas string 53 // Return how many lemmas merged successfully 54 int put_lemmas(char16 * lemmas, int len); 55 56 // Get local new user lemmas into UTF16LE string 57 // str, buffer ptr to store new user lemmas 58 // size, size of buffer 59 // Return length of returned buffer in measure of UTF16LE 60 int get_lemmas(char16 * str, int size); 61 62 // Return lemmas count in last get_lemmas() 63 int get_last_got_count(); 64 65 // Return total lemmas count need get_lemmas() 66 int get_total_count(); 67 68 // Clear lemmas got by recent get_lemmas() 69 void clear_last_got(); 70 71 void finish(); 72 73 int get_capacity(); 74 75 private: 76 UserDict * userdict_; 77 char * dictfile_; 78 int last_count_; 79 }; 80 81 } 82 83 #endif 84 85 #endif // PINYINIME_INCLUDE_SYNC_H__ 86
