| /* |
| * Copyright (C) 2013, 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. |
| */ |
| |
| /* |
| * !!!!! DO NOT EDIT THIS FILE !!!!! |
| * |
| * This file was generated from |
| * suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_writing_helper.h |
| */ |
| |
| #ifndef LATINIME_BACKWARD_V402_VER4_PATRICIA_TRIE_WRITING_HELPER_H |
| #define LATINIME_BACKWARD_V402_VER4_PATRICIA_TRIE_WRITING_HELPER_H |
| |
| #include "defines.h" |
| #include "suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_gc_event_listeners.h" |
| #include "suggest/policyimpl/dictionary/structure/backward/v402/content/terminal_position_lookup_table.h" |
| #include "suggest/policyimpl/dictionary/utils/entry_counters.h" |
| |
| namespace latinime { |
| namespace backward { |
| namespace v402 { |
| |
| } // namespace v402 |
| } // namespace backward |
| class HeaderPolicy; |
| namespace backward { |
| namespace v402 { |
| class Ver4DictBuffers; |
| class Ver4PatriciaTrieNodeReader; |
| class Ver4PatriciaTrieNodeWriter; |
| |
| class Ver4PatriciaTrieWritingHelper { |
| public: |
| Ver4PatriciaTrieWritingHelper(Ver4DictBuffers *const buffers) |
| : mBuffers(buffers) {} |
| |
| bool writeToDictFile(const char *const dictDirPath, const EntryCounts &entryCounts) const; |
| |
| // This method cannot be const because the original dictionary buffer will be updated to detect |
| // useless PtNodes during GC. |
| bool writeToDictFileWithGC(const int rootPtNodeArrayPos, const char *const dictDirPath); |
| |
| private: |
| DISALLOW_IMPLICIT_CONSTRUCTORS(Ver4PatriciaTrieWritingHelper); |
| |
| class TraversePolicyToUpdateAllPtNodeFlagsAndTerminalIds |
| : public DynamicPtReadingHelper::TraversingEventListener { |
| public: |
| TraversePolicyToUpdateAllPtNodeFlagsAndTerminalIds( |
| Ver4PatriciaTrieNodeWriter *const ptNodeWriter, |
| const TerminalPositionLookupTable::TerminalIdMap *const terminalIdMap) |
| : mPtNodeWriter(ptNodeWriter), mTerminalIdMap(terminalIdMap) {} |
| |
| bool onAscend() { return true; } |
| |
| bool onDescend(const int ptNodeArrayPos) { return true; } |
| |
| bool onReadingPtNodeArrayTail() { return true; } |
| |
| bool onVisitingPtNode(const PtNodeParams *const ptNodeParams); |
| |
| private: |
| DISALLOW_IMPLICIT_CONSTRUCTORS(TraversePolicyToUpdateAllPtNodeFlagsAndTerminalIds); |
| |
| Ver4PatriciaTrieNodeWriter *const mPtNodeWriter; |
| const TerminalPositionLookupTable::TerminalIdMap *const mTerminalIdMap; |
| }; |
| |
| // For truncateUnigrams() and truncateBigrams(). |
| class DictProbability { |
| public: |
| DictProbability(const int dictPos, const int probability, const int timestamp) |
| : mDictPos(dictPos), mProbability(probability), mTimestamp(timestamp) {} |
| |
| int getDictPos() const { |
| return mDictPos; |
| } |
| |
| int getProbability() const { |
| return mProbability; |
| } |
| |
| int getTimestamp() const { |
| return mTimestamp; |
| } |
| |
| private: |
| DISALLOW_DEFAULT_CONSTRUCTOR(DictProbability); |
| |
| int mDictPos; |
| int mProbability; |
| int mTimestamp; |
| }; |
| |
| // For truncateUnigrams() and truncateBigrams(). |
| class DictProbabilityComparator { |
| public: |
| bool operator()(const DictProbability &left, const DictProbability &right) { |
| if (left.getProbability() != right.getProbability()) { |
| return left.getProbability() > right.getProbability(); |
| } |
| if (left.getTimestamp() != right.getTimestamp()) { |
| return left.getTimestamp() < right.getTimestamp(); |
| } |
| return left.getDictPos() > right.getDictPos(); |
| } |
| |
| private: |
| DISALLOW_ASSIGNMENT_OPERATOR(DictProbabilityComparator); |
| }; |
| |
| bool runGC(const int rootPtNodeArrayPos, const HeaderPolicy *const headerPolicy, |
| Ver4DictBuffers *const buffersToWrite, int *const outUnigramCount, |
| int *const outBigramCount); |
| |
| bool truncateUnigrams(const Ver4PatriciaTrieNodeReader *const ptNodeReader, |
| Ver4PatriciaTrieNodeWriter *const ptNodeWriter, const int maxUnigramCount); |
| |
| bool truncateBigrams(const int maxBigramCount); |
| |
| Ver4DictBuffers *const mBuffers; |
| }; |
| } // namespace v402 |
| } // namespace backward |
| } // namespace latinime |
| |
| #endif /* LATINIME_BACKWARD_V402_VER4_PATRICIA_TRIE_WRITING_HELPER_H */ |