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Implement TerminalPositionLookupTable. 

Bug: 11073222
Change-Id: I2ffe8ffc290fb69afc0eca35b5fed7157f5108fd
main
Keisuke Kuroyanagi 2013-11-01 17:54:23 -07:00
parent 1c62341de6
commit 6e15f8a17f
5 changed files with 61 additions and 6 deletions
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53
native/jni/src/suggest/policyimpl/dictionary/structure/v4/content/terminal_position_lookup_table.h Normal file
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@ -0,0 +1,53 @@
/*
* 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_TERMINAL_POSITION_LOOKUP_TABLE_H
#define LATINIME_TERMINAL_POSITION_LOOKUP_TABLE_H
#include <stdint.h>
#include "defines.h"
#include "suggest/policyimpl/dictionary/structure/v4/content/single_dict_content.h"
#include "suggest/policyimpl/dictionary/structure/v4/ver4_dict_constants.h"
#include "suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_reading_utils.h"
#include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
namespace latinime {
class TerminalPositionLookupTable : public SingleDictContent {
public:
TerminalPositionLookupTable(const char *const dictDirPath, const bool isUpdatable)
: SingleDictContent(dictDirPath,
Ver4DictConstants::TERMINAL_ADDRESS_TABLE_FILE_EXTENSION, isUpdatable),
mSize(getBuffer()->getTailPosition()
/ Ver4DictConstants::TERMINAL_ADDRESS_TABLE_ADDRESS_SIZE) {}
int getTerminalPtNodePosition(const int terminalId) const {
if (terminalId < 0 || terminalId >= mSize) {
return NOT_A_DICT_POS;
}
const int readingPos = terminalId * Ver4DictConstants::TERMINAL_ADDRESS_TABLE_ADDRESS_SIZE;
return getBuffer()->readUint(Ver4DictConstants::TERMINAL_ADDRESS_TABLE_ADDRESS_SIZE,
readingPos);
}
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(TerminalPositionLookupTable);
const int mSize;
};
} // namespace latinime
#endif // LATINIME_TERMINAL_POSITION_LOOKUP_TABLE_H

8
native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_dict_buffers.h
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@ -21,6 +21,7 @@
#include "suggest/policyimpl/dictionary/structure/v4/content/probability_dict_content.h"
#include "suggest/policyimpl/dictionary/structure/v4/content/single_dict_content.h"
#include "suggest/policyimpl/dictionary/structure/v4/content/sparse_table_dict_content.h"
#include "suggest/policyimpl/dictionary/structure/v4/content/terminal_position_lookup_table.h"
#include "suggest/policyimpl/dictionary/structure/v4/ver4_dict_constants.h"
#include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
#include "suggest/policyimpl/dictionary/utils/mmapped_buffer.h"
@ -39,7 +40,7 @@ class Ver4DictBuffers {
AK_FORCE_INLINE bool isValid() const {
return mDictBuffer.get() != 0 && mProbabilityDictContent.isValid()
&& mTerminalAddressTable.isValid() && mBigramDictContent.isValid()
&& mTerminalPositionLookupTable.isValid() && mBigramDictContent.isValid()
&& mShortcutDictContent.isValid();
}
@ -61,8 +62,7 @@ class Ver4DictBuffers {
AK_FORCE_INLINE Ver4DictBuffers(const char *const dictDirPath,
const MmappedBuffer::MmappedBufferPtr &dictBuffer, const bool isUpdatable)
: mDictBuffer(dictBuffer),
mTerminalAddressTable(dictDirPath,
Ver4DictConstants::TERMINAL_ADDRESS_TABLE_FILE_EXTENSION, isUpdatable),
mTerminalPositionLookupTable(dictDirPath, isUpdatable),
mProbabilityDictContent(dictDirPath, isUpdatable),
mBigramDictContent(dictDirPath,
Ver4DictConstants::BIGRAM_LOOKUP_TABLE_FILE_EXTENSION,
@ -78,7 +78,7 @@ class Ver4DictBuffers {
Ver4DictConstants::SHORTCUT_ADDRESS_TABLE_DATA_SIZE) {}
const MmappedBuffer::MmappedBufferPtr mDictBuffer;
SingleDictContent mTerminalAddressTable;
TerminalPositionLookupTable mTerminalPositionLookupTable;
ProbabilityDictContent mProbabilityDictContent;
SparseTableDictContent mBigramDictContent;
SparseTableDictContent mShortcutDictContent;

1
native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_dict_constants.cpp
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@ -33,6 +33,7 @@ const char *const Ver4DictConstants::SHORTCUT_CONTENT_TABLE_FILE_EXTENSION =
const int Ver4DictConstants::NOT_A_TERMINAL_ID = -1;
const int Ver4DictConstants::PROBABILITY_SIZE = 1;
const int Ver4DictConstants::FLAGS_IN_PROBABILITY_FILE_SIZE = 1;
const int Ver4DictConstants::TERMINAL_ADDRESS_TABLE_ADDRESS_SIZE = 3;
const int Ver4DictConstants::BIGRAM_ADDRESS_TABLE_BLOCK_SIZE = 4;
const int Ver4DictConstants::BIGRAM_ADDRESS_TABLE_DATA_SIZE = 4;

1
native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_dict_constants.h
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@ -37,6 +37,7 @@ class Ver4DictConstants {
static const int NOT_A_TERMINAL_ID;
static const int PROBABILITY_SIZE;
static const int FLAGS_IN_PROBABILITY_FILE_SIZE;
static const int TERMINAL_ADDRESS_TABLE_ADDRESS_SIZE;
static const int BIGRAM_ADDRESS_TABLE_BLOCK_SIZE;
static const int BIGRAM_ADDRESS_TABLE_DATA_SIZE;

4
native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_reading_utils.cpp
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@ -29,10 +29,10 @@ namespace latinime {
/* static */ int Ver4PatriciaTrieReadingUtils::getProbability(
const BufferWithExtendableBuffer *const probabilityBuffer, const int terminalId) {
int pos = terminalId * (Ver4DictConstants::FLAGS_IN_PROBABILITY_FILE_SIZE
const int pos = terminalId * (Ver4DictConstants::FLAGS_IN_PROBABILITY_FILE_SIZE
+ Ver4DictConstants::PROBABILITY_SIZE)
+ Ver4DictConstants::FLAGS_IN_PROBABILITY_FILE_SIZE;
return probabilityBuffer->readUintAndAdvancePosition(Ver4DictConstants::PROBABILITY_SIZE, &pos);
return probabilityBuffer->readUint(Ver4DictConstants::PROBABILITY_SIZE, pos);
}
} // namespace latinime