| /* |
| * 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. |
| */ |
| |
| #ifndef LATINIME_VER4_PATRICIA_TRIE_WRITING_HELPER_H |
| #define LATINIME_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/v4/content/terminal_position_lookup_table.h" |
| #include "suggest/policyimpl/dictionary/utils/entry_counters.h" |
| |
| namespace latinime { |
| |
| class HeaderPolicy; |
| 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; |
| }; |
| |
| bool runGC(const int rootPtNodeArrayPos, const HeaderPolicy *const headerPolicy, |
| Ver4DictBuffers *const buffersToWrite, int *const outUnigramCount, |
| int *const outBigramCount); |
| |
| Ver4DictBuffers *const mBuffers; |
| }; |
| } // namespace latinime |
| |
| #endif /* LATINIME_VER4_PATRICIA_TRIE_WRITING_HELPER_H */ |