90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
/*
|
|
* Copyright (C) 2014, The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef LATINIME_ENTRY_COUNTERS_H
|
|
#define LATINIME_ENTRY_COUNTERS_H
|
|
|
|
#include <array>
|
|
|
|
#include "defines.h"
|
|
#include "utils/ngram_utils.h"
|
|
|
|
namespace latinime {
|
|
|
|
// Copyable but immutable
|
|
class EntryCounts final {
|
|
public:
|
|
EntryCounts() : mEntryCounts({{0, 0, 0}}) {}
|
|
|
|
explicit EntryCounts(const std::array<int, MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1> &counters)
|
|
: mEntryCounts(counters) {}
|
|
|
|
int getNgramCount(const NgramType ngramType) const {
|
|
return mEntryCounts[static_cast<int>(ngramType)];
|
|
}
|
|
|
|
const std::array<int, MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1> &getCountArray() const {
|
|
return mEntryCounts;
|
|
}
|
|
|
|
private:
|
|
DISALLOW_ASSIGNMENT_OPERATOR(EntryCounts);
|
|
|
|
// Counts from Unigram (0-th element) to (MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1)-gram
|
|
// (MAX_PREV_WORD_COUNT_FOR_N_GRAM-th element)
|
|
const std::array<int, MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1> mEntryCounts;
|
|
};
|
|
|
|
class MutableEntryCounters final {
|
|
public:
|
|
MutableEntryCounters() {
|
|
mEntryCounters.fill(0);
|
|
}
|
|
|
|
explicit MutableEntryCounters(
|
|
const std::array<int, MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1> &counters)
|
|
: mEntryCounters(counters) {}
|
|
|
|
const EntryCounts getEntryCounts() const {
|
|
return EntryCounts(mEntryCounters);
|
|
}
|
|
|
|
void incrementNgramCount(const NgramType ngramType) {
|
|
++mEntryCounters[static_cast<int>(ngramType)];
|
|
}
|
|
|
|
void decrementNgramCount(const NgramType ngramType) {
|
|
--mEntryCounters[static_cast<int>(ngramType)];
|
|
}
|
|
|
|
int getNgramCount(const NgramType ngramType) const {
|
|
return mEntryCounters[static_cast<int>(ngramType)];
|
|
}
|
|
|
|
void setNgramCount(const NgramType ngramType, const int count) {
|
|
mEntryCounters[static_cast<int>(ngramType)] = count;
|
|
}
|
|
|
|
private:
|
|
DISALLOW_COPY_AND_ASSIGN(MutableEntryCounters);
|
|
|
|
// Counters from Unigram (0-th element) to (MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1)-gram
|
|
// (MAX_PREV_WORD_COUNT_FOR_N_GRAM-th element)
|
|
std::array<int, MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1> mEntryCounters;
|
|
};
|
|
} // namespace latinime
|
|
#endif /* LATINIME_ENTRY_COUNTERS_H */
|