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Prepare dictionary file creating in native code. 

Bug: 6669677
Change-Id: I7c476a6e99ec7ac883f05d84ef306265255154da
main
Keisuke Kuroyanagi 2013-09-26 10:48:43 +09:00
parent 989596844e
commit 1592eb8a3a
7 changed files with 173 additions and 70 deletions
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1
native/jni/Android.mk
View File

@ -85,6 +85,7 @@ LATIN_IME_CORE_SRC_FILES := \
$(addprefix suggest/policyimpl/dictionary/utils/, \
buffer_with_extendable_buffer.cpp \
byte_array_utils.cpp \
dict_file_writing_utils.cpp \
format_utils.cpp) \
suggest/policyimpl/gesture/gesture_suggest_policy_factory.cpp \
$(addprefix suggest/policyimpl/typing/, \

64
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.cpp
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@ -16,9 +16,6 @@
#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.h"
#include <cstdio>
#include <cstring>
#include "suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.h"
#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_gc_event_listeners.h"
#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.h"
@ -28,13 +25,12 @@
#include "suggest/policyimpl/dictionary/header/header_policy.h"
#include "suggest/policyimpl/dictionary/patricia_trie_reading_utils.h"
#include "suggest/policyimpl/dictionary/shortcut/dynamic_shortcut_list_policy.h"
#include "suggest/policyimpl/dictionary/utils/dict_file_writing_utils.h"
#include "utils/hash_map_compat.h"
namespace latinime {
const int DynamicPatriciaTrieWritingHelper::CHILDREN_POSITION_FIELD_SIZE = 3;
const char *const DynamicPatriciaTrieWritingHelper::TEMP_FILE_SUFFIX_FOR_WRITING_DICT_FILE =
".tmp";
// TODO: Make MAX_DICTIONARY_SIZE 8MB.
const size_t DynamicPatriciaTrieWritingHelper::MAX_DICTIONARY_SIZE = 2 * 1024 * 1024;
@ -147,7 +143,7 @@ void DynamicPatriciaTrieWritingHelper::writeToDictFile(const char *const fileNam
if (!headerPolicy->writeHeaderToBuffer(&headerBuffer, false /* updatesLastUpdatedTime */)) {
return;
}
flushAllToFile(fileName, &headerBuffer, mBuffer);
DictFileWritingUtils::flushAllHeaderAndBodyToFile(fileName, &headerBuffer, mBuffer);
}
void DynamicPatriciaTrieWritingHelper::writeToDictFileWithGC(const int rootPtNodeArrayPos,
@ -161,7 +157,7 @@ void DynamicPatriciaTrieWritingHelper::writeToDictFileWithGC(const int rootPtNod
if (!runGC(rootPtNodeArrayPos, &newDictBuffer)) {
return;
}
flushAllToFile(fileName, &headerBuffer, &newDictBuffer);
DictFileWritingUtils::flushAllHeaderAndBodyToFile(fileName, &headerBuffer, &newDictBuffer);
}
bool DynamicPatriciaTrieWritingHelper::markNodeAsDeleted(
@ -463,60 +459,6 @@ bool DynamicPatriciaTrieWritingHelper::reallocatePtNodeAndAddNewPtNodes(
return true;
}
// TODO: Create a struct which contains header, body and etc... and use here as an argument.
void DynamicPatriciaTrieWritingHelper::flushAllToFile(const char *const fileName,
BufferWithExtendableBuffer *const dictHeader,
BufferWithExtendableBuffer *const dictBody) const {
const int tmpFileNameBufSize = strlen(fileName)
+ strlen(TEMP_FILE_SUFFIX_FOR_WRITING_DICT_FILE) + 1 /* terminator */;
// Name of a temporary file used for writing that is a connected string of original name and
// TEMP_FILE_SUFFIX_FOR_WRITING_DICT_FILE.
char tmpFileName[tmpFileNameBufSize];
snprintf(tmpFileName, tmpFileNameBufSize, "%s%s", fileName,
TEMP_FILE_SUFFIX_FOR_WRITING_DICT_FILE);
FILE *const file = fopen(tmpFileName, "wb");
if (!file) {
AKLOGI("Dictionary file %s cannnot be opened.", tmpFileName);
ASSERT(false);
return;
}
// Write the dictionary header.
if (!writeBufferToFilePointer(file, dictHeader)) {
remove(tmpFileName);
AKLOGI("Dictionary header cannnot be written. size: %d", dictHeader->getTailPosition());
ASSERT(false);
return;
}
// Write the dictionary body.
if (!writeBufferToFilePointer(file, dictBody)) {
remove(tmpFileName);
AKLOGI("Dictionary body cannnot be written. size: %d", dictBody->getTailPosition());
ASSERT(false);
return;
}
fclose(file);
rename(tmpFileName, fileName);
}
// This closes file pointer when an error is caused and returns whether the writing was succeeded
// or not.
bool DynamicPatriciaTrieWritingHelper::writeBufferToFilePointer(FILE *const file,
const BufferWithExtendableBuffer *const buffer) const {
const int originalBufSize = buffer->getOriginalBufferSize();
if (originalBufSize > 0 && fwrite(buffer->getBuffer(false /* usesAdditionalBuffer */),
originalBufSize, 1, file) < 1) {
fclose(file);
return false;
}
const int additionalBufSize = buffer->getTailPosition() - buffer->getOriginalBufferSize();
if (additionalBufSize > 0 && fwrite(buffer->getBuffer(true /* usesAdditionalBuffer */),
additionalBufSize, 1, file) < 1) {
fclose(file);
return false;
}
return true;
}
bool DynamicPatriciaTrieWritingHelper::runGC(const int rootPtNodeArrayPos,
BufferWithExtendableBuffer *const bufferToWrite) {
DynamicPatriciaTrieReadingHelper readingHelper(mBuffer, mBigramPolicy, mShortcutPolicy);

9
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.h
View File

@ -17,7 +17,6 @@
#ifndef LATINIME_DYNAMIC_PATRICIA_TRIE_WRITING_HELPER_H
#define LATINIME_DYNAMIC_PATRICIA_TRIE_WRITING_HELPER_H
#include <cstdio>
#include <stdint.h>
#include "defines.h"
@ -85,7 +84,6 @@ class DynamicPatriciaTrieWritingHelper {
DISALLOW_IMPLICIT_CONSTRUCTORS(DynamicPatriciaTrieWritingHelper);
static const int CHILDREN_POSITION_FIELD_SIZE;
static const char *const TEMP_FILE_SUFFIX_FOR_WRITING_DICT_FILE;
static const size_t MAX_DICTIONARY_SIZE;
BufferWithExtendableBuffer *const mBuffer;
@ -124,13 +122,6 @@ class DynamicPatriciaTrieWritingHelper {
const int probabilityOfNewPtNode, const int *const newNodeCodePoints,
const int newNodeCodePointCount);
void flushAllToFile(const char *const fileName,
BufferWithExtendableBuffer *const dictHeader,
BufferWithExtendableBuffer *const dictBody) const;
bool writeBufferToFilePointer(FILE *const file,
const BufferWithExtendableBuffer *const buffer) const;
bool runGC(const int rootPtNodeArrayPos, BufferWithExtendableBuffer *const bufferToWrite);
};
} // namespace latinime

10
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_utils.cpp
View File

@ -36,6 +36,16 @@ const int DynamicPatriciaTrieWritingUtils::DICT_OFFSET_NEGATIVE_FLAG = 0x800000;
const int DynamicPatriciaTrieWritingUtils::PROBABILITY_FIELD_SIZE = 1;
const int DynamicPatriciaTrieWritingUtils::NODE_FLAG_FIELD_SIZE = 1;
/* static */ bool DynamicPatriciaTrieWritingUtils::writeEmptyDictionary(
BufferWithExtendableBuffer *const buffer, const int rootPos) {
int writingPos = rootPos;
if (!writePtNodeArraySizeAndAdvancePosition(buffer, 0 /* arraySize */, &writingPos)) {
return false;
}
return writeForwardLinkPositionAndAdvancePosition(buffer, NOT_A_DICT_POS /* forwardLinkPos */,
&writingPos);
}
/* static */ bool DynamicPatriciaTrieWritingUtils::writeForwardLinkPositionAndAdvancePosition(
BufferWithExtendableBuffer *const buffer, const int forwardLinkPos,
int *const forwardLinkFieldPos) {

2
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_utils.h
View File

@ -30,6 +30,8 @@ class DynamicPatriciaTrieWritingUtils {
public:
static const int NODE_FLAG_FIELD_SIZE;
static bool writeEmptyDictionary(BufferWithExtendableBuffer *const buffer, const int rootPos);
static bool writeForwardLinkPositionAndAdvancePosition(
BufferWithExtendableBuffer *const buffer, const int forwardLinkPos,
int *const forwardLinkFieldPos);

107
native/jni/src/suggest/policyimpl/dictionary/utils/dict_file_writing_utils.cpp Normal file
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@ -0,0 +1,107 @@
/*
* 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.
*/
#include "suggest/policyimpl/dictionary/utils/dict_file_writing_utils.h"
#include <cstdio>
#include <cstring>
#include "suggest/policyimpl/dictionary/header/header_policy.h"
#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_utils.h"
#include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
#include "suggest/policyimpl/dictionary/utils/format_utils.h"
namespace latinime {
const char *const DictFileWritingUtils::TEMP_FILE_SUFFIX_FOR_WRITING_DICT_FILE = ".tmp";
/* static */ bool DictFileWritingUtils::createEmptyDictFile(const char *const filePath,
const int dictVersion, const HeaderReadWriteUtils::AttributeMap *const attributeMap) {
switch (dictVersion) {
case 3:
return createEmptyV3DictFile(filePath, attributeMap);
default:
// Only version 3 dictionary is supported for now.
return false;
}
}
/* static */ bool DictFileWritingUtils::createEmptyV3DictFile(const char *const filePath,
const HeaderReadWriteUtils::AttributeMap *const attributeMap) {
BufferWithExtendableBuffer headerBuffer(0 /* originalBuffer */, 0 /* originalBufferSize */);
HeaderPolicy headerPolicy(FormatUtils::VERSION_3, attributeMap);
headerPolicy.writeHeaderToBuffer(&headerBuffer, true /* updatesLastUpdatedTime */);
BufferWithExtendableBuffer bodyBuffer(0 /* originalBuffer */, 0 /* originalBufferSize */);
if (!DynamicPatriciaTrieWritingUtils::writeEmptyDictionary(&bodyBuffer, 0 /* rootPos */)) {
return false;
}
return flushAllHeaderAndBodyToFile(filePath, &headerBuffer, &bodyBuffer);
}
/* static */ bool DictFileWritingUtils::flushAllHeaderAndBodyToFile(const char *const filePath,
BufferWithExtendableBuffer *const dictHeader, BufferWithExtendableBuffer *const dictBody) {
const int tmpFileNameBufSize = strlen(filePath)
+ strlen(TEMP_FILE_SUFFIX_FOR_WRITING_DICT_FILE) + 1 /* terminator */;
// Name of a temporary file used for writing that is a connected string of original name and
// TEMP_FILE_SUFFIX_FOR_WRITING_DICT_FILE.
char tmpFileName[tmpFileNameBufSize];
snprintf(tmpFileName, tmpFileNameBufSize, "%s%s", filePath,
TEMP_FILE_SUFFIX_FOR_WRITING_DICT_FILE);
FILE *const file = fopen(tmpFileName, "wb");
if (!file) {
AKLOGE("Dictionary file %s cannnot be opened.", tmpFileName);
ASSERT(false);
return false;
}
// Write the dictionary header.
if (!writeBufferToFile(file, dictHeader)) {
remove(tmpFileName);
AKLOGE("Dictionary header cannnot be written. size: %d", dictHeader->getTailPosition());
ASSERT(false);
return false;
}
// Write the dictionary body.
if (!writeBufferToFile(file, dictBody)) {
remove(tmpFileName);
AKLOGE("Dictionary body cannnot be written. size: %d", dictBody->getTailPosition());
ASSERT(false);
return false;
}
fclose(file);
rename(tmpFileName, filePath);
return true;
}
// This closes file pointer when an error is caused and returns whether the writing was succeeded
// or not.
/* static */ bool DictFileWritingUtils::writeBufferToFile(FILE *const file,
const BufferWithExtendableBuffer *const buffer) {
const int originalBufSize = buffer->getOriginalBufferSize();
if (originalBufSize > 0 && fwrite(buffer->getBuffer(false /* usesAdditionalBuffer */),
originalBufSize, 1, file) < 1) {
fclose(file);
return false;
}
const int additionalBufSize = buffer->getTailPosition() - buffer->getOriginalBufferSize();
if (additionalBufSize > 0 && fwrite(buffer->getBuffer(true /* usesAdditionalBuffer */),
additionalBufSize, 1, file) < 1) {
fclose(file);
return false;
}
return true;
}
} // namespace latinime

50
native/jni/src/suggest/policyimpl/dictionary/utils/dict_file_writing_utils.h Normal file
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@ -0,0 +1,50 @@
/*
* 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_DICT_FILE_WRITING_UTILS_H
#define LATINIME_DICT_FILE_WRITING_UTILS_H
#include <cstdio>
#include "defines.h"
#include "suggest/policyimpl/dictionary/header/header_read_write_utils.h"
namespace latinime {
class BufferWithExtendableBuffer;
class DictFileWritingUtils {
public:
static bool createEmptyDictFile(const char *const filePath, const int dictVersion,
const HeaderReadWriteUtils::AttributeMap *const attributeMap);
static bool flushAllHeaderAndBodyToFile(const char *const filePath,
BufferWithExtendableBuffer *const dictHeader,
BufferWithExtendableBuffer *const dictBody);
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(DictFileWritingUtils);
static const char *const TEMP_FILE_SUFFIX_FOR_WRITING_DICT_FILE;
static bool createEmptyV3DictFile(const char *const filePath,
const HeaderReadWriteUtils::AttributeMap *const attributeMap);
static bool writeBufferToFile(FILE *const file,
const BufferWithExtendableBuffer *const buffer);
};
} // namespace latinime
#endif /* LATINIME_DICT_FILE_WRITING_UTILS_H */