single_dict_content.h revision c0c674cdc0721a374e140ad5ee1409c0498b3262 
1/*
2 * Copyright (C) 2013, 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/*
18 * !!!!! DO NOT EDIT THIS FILE !!!!!
19 *
20 * This file was generated from
21 *   suggest/policyimpl/dictionary/structure/v4/content/single_dict_content.h
22 */
23
24#ifndef LATINIME_BACKWARD_V402_SINGLE_DICT_CONTENT_H
25#define LATINIME_BACKWARD_V402_SINGLE_DICT_CONTENT_H
26
27#include "defines.h"
28#include "suggest/policyimpl/dictionary/structure/backward/v402/content/dict_content.h"
29#include "suggest/policyimpl/dictionary/structure/backward/v402/ver4_dict_constants.h"
30#include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
31#include "suggest/policyimpl/dictionary/utils/dict_file_writing_utils.h"
32#include "suggest/policyimpl/dictionary/utils/mmapped_buffer.h"
33#include "utils/byte_array_view.h"
34
35namespace latinime {
36namespace backward {
37namespace v402 {
38
39class SingleDictContent : public DictContent {
40 public:
41    SingleDictContent(const char *const dictPath, const char *const contentFileName,
42            const bool isUpdatable)
43            : mMmappedBuffer(MmappedBuffer::openBuffer(dictPath, contentFileName, isUpdatable)),
44              mExpandableContentBuffer(
45                      mMmappedBuffer ? mMmappedBuffer->getReadWriteByteArrayView() :
46                              ReadWriteByteArrayView(),
47                      BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE),
48              mIsValid(mMmappedBuffer) {}
49
50    SingleDictContent()
51            : mMmappedBuffer(nullptr),
52              mExpandableContentBuffer(Ver4DictConstants::MAX_DICTIONARY_SIZE), mIsValid(true) {}
53
54    virtual ~SingleDictContent() {}
55
56    virtual bool isValid() const {
57        return mIsValid;
58    }
59
60    bool isNearSizeLimit() const {
61        return mExpandableContentBuffer.isNearSizeLimit();
62    }
63
64 protected:
65    BufferWithExtendableBuffer *getWritableBuffer() {
66        return &mExpandableContentBuffer;
67    }
68
69    const BufferWithExtendableBuffer *getBuffer() const {
70        return &mExpandableContentBuffer;
71    }
72
73    bool flush(const char *const dictPath, const char *const contentFileNameSuffix) const {
74        return DictFileWritingUtils::flushBufferToFileWithSuffix(dictPath,
75                contentFileNameSuffix, &mExpandableContentBuffer);
76    }
77
78 private:
79    DISALLOW_COPY_AND_ASSIGN(SingleDictContent);
80
81    const MmappedBuffer::MmappedBufferPtr mMmappedBuffer;
82    BufferWithExtendableBuffer mExpandableContentBuffer;
83    const bool mIsValid;
84};
85} // namespace v402
86} // namespace backward
87} // namespace latinime
88#endif /* LATINIME_BACKWARD_V402_SINGLE_DICT_CONTENT_H */
89