Open Chinese Convert  1.0.3
A project for conversion between Traditional and Simplified Chinese
SerializableDict.hpp
00001 /*
00002  * Open Chinese Convert
00003  *
00004  * Copyright 2010-2014 BYVoid <byvoid@byvoid.com>
00005  *
00006  * Licensed under the Apache License, Version 2.0 (the "License");
00007  * you may not use this file except in compliance with the License.
00008  * You may obtain a copy of the License at
00009  *
00010  *      http://www.apache.org/licenses/LICENSE-2.0
00011  *
00012  * Unless required by applicable law or agreed to in writing, software
00013  * distributed under the License is distributed on an "AS IS" BASIS,
00014  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00015  * See the License for the specific language governing permissions and
00016  * limitations under the License.
00017  */
00018 
00019 #pragma once
00020 
00021 #include "Dict.hpp"
00022 
00023 namespace opencc {
00028 class OPENCC_EXPORT SerializableDict {
00029 public:
00033   virtual void SerializeToFile(FILE* fp) const = 0;
00034 
00038   virtual void SerializeToFile(const string& fileName) const {
00039     FILE* fp = fopen(fileName.c_str(), "wb");
00040     if (fp == NULL) {
00041       throw FileNotWritable(fileName);
00042     }
00043     SerializeToFile(fp);
00044     fclose(fp);
00045   }
00046 
00047   template <typename DICT>
00048   static bool TryLoadFromFile(const string& fileName,
00049                               std::shared_ptr<DICT>* dict) {
00050     FILE* fp = fopen(fileName.c_str(), "rb");
00051     if (fp == NULL) {
00052       return false;
00053     }
00054     std::shared_ptr<DICT> loadedDict = DICT::NewFromFile(fp);
00055     fclose(fp);
00056     *dict = loadedDict;
00057     return true;
00058   }
00059 
00060   template <typename DICT>
00061   static std::shared_ptr<DICT> NewFromFile(const string& fileName) {
00062     std::shared_ptr<DICT> dict;
00063     if (!TryLoadFromFile<DICT>(fileName, &dict)) {
00064       throw FileNotFound(fileName);
00065     }
00066     return dict;
00067   }
00068 };
00069 }
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