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Make UserHistoryDictionary use updateEntriesForWordWithNgramContext() 

Bug: 14425059
Change-Id: I409ebf90f68f4a0f1638128ac5ee6af859323d30
main
Keisuke Kuroyanagi 2014-10-06 15:50:38 +09:00
parent a9089f9a57
commit 9290d0a4eb
4 changed files with 52 additions and 49 deletions
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5
java/src/com/android/inputmethod/latin/BinaryDictionary.java
View File

@ -42,6 +42,8 @@ import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import javax.annotation.Nonnull;
/**
* Implements a static, compacted, binary dictionary of standard words.
*/
@ -495,8 +497,7 @@ public final class BinaryDictionary extends Dictionary {
}
// Update entries for the word occurrence with the ngramContext.
@UsedForTesting
public boolean updateEntriesForWordWithNgramContext(final NgramContext ngramContext,
public boolean updateEntriesForWordWithNgramContext(@Nonnull final NgramContext ngramContext,
final String word, final boolean isValidWord, final int count, final int timestamp) {
if (TextUtils.isEmpty(word)) {
return false;

60
java/src/com/android/inputmethod/latin/ExpandableBinaryDictionary.java
View File

@ -46,6 +46,8 @@ import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import javax.annotation.Nonnull;
/**
* Abstract base class for an expandable dictionary that can be created and updated dynamically
* during runtime. When updated it automatically generates a new binary dictionary to handle future
@ -292,13 +294,9 @@ abstract public class ExpandableBinaryDictionary extends Dictionary {
}
}
/**
* Adds unigram information of a word to the dictionary. May overwrite an existing entry.
*/
public void addUnigramEntryWithCheckingDistracter(final String word, final int frequency,
final String shortcutTarget, final int shortcutFreq, final boolean isNotAWord,
final boolean isBlacklisted, final int timestamp,
final DistracterFilter distracterFilter) {
private void updateDictionaryWithWriteLockIfWordIsNotADistracter(
@Nonnull final Runnable updateTask,
@Nonnull final String word, @Nonnull final DistracterFilter distracterFilter) {
reloadDictionaryIfRequired();
asyncPreCheckAndExecuteTaskWithWriteLock(
new Callable<Boolean>() {
@ -315,12 +313,27 @@ abstract public class ExpandableBinaryDictionary extends Dictionary {
return;
}
runGCIfRequiredLocked(true /* mindsBlockByGC */);
addUnigramLocked(word, frequency, shortcutTarget, shortcutFreq,
isNotAWord, isBlacklisted, timestamp);
updateTask.run();
}
});
}
/**
* Adds unigram information of a word to the dictionary. May overwrite an existing entry.
*/
public void addUnigramEntryWithCheckingDistracter(final String word, final int frequency,
final String shortcutTarget, final int shortcutFreq, final boolean isNotAWord,
final boolean isBlacklisted, final int timestamp,
@Nonnull final DistracterFilter distracterFilter) {
updateDictionaryWithWriteLockIfWordIsNotADistracter(new Runnable() {
@Override
public void run() {
addUnigramLocked(word, frequency, shortcutTarget, shortcutFreq,
isNotAWord, isBlacklisted, timestamp);
}
}, word, distracterFilter);
}
protected void addUnigramLocked(final String word, final int frequency,
final String shortcutTarget, final int shortcutFreq, final boolean isNotAWord,
final boolean isBlacklisted, final int timestamp) {
@ -354,7 +367,7 @@ abstract public class ExpandableBinaryDictionary extends Dictionary {
/**
* Adds n-gram information of a word to the dictionary. May overwrite an existing entry.
*/
public void addNgramEntry(final NgramContext ngramContext, final String word,
public void addNgramEntry(@Nonnull final NgramContext ngramContext, final String word,
final int frequency, final int timestamp) {
reloadDictionaryIfRequired();
asyncExecuteTaskWithWriteLock(new Runnable() {
@ -369,7 +382,7 @@ abstract public class ExpandableBinaryDictionary extends Dictionary {
});
}
protected void addNgramEntryLocked(final NgramContext ngramContext, final String word,
protected void addNgramEntryLocked(@Nonnull final NgramContext ngramContext, final String word,
final int frequency, final int timestamp) {
if (!mBinaryDictionary.addNgramEntry(ngramContext, word, frequency, timestamp)) {
if (DEBUG) {
@ -383,7 +396,8 @@ abstract public class ExpandableBinaryDictionary extends Dictionary {
* Dynamically remove the n-gram entry in the dictionary.
*/
@UsedForTesting
public void removeNgramDynamically(final NgramContext ngramContext, final String word) {
public void removeNgramDynamically(@Nonnull final NgramContext ngramContext,
final String word) {
reloadDictionaryIfRequired();
asyncExecuteTaskWithWriteLock(new Runnable() {
@Override
@ -402,6 +416,26 @@ abstract public class ExpandableBinaryDictionary extends Dictionary {
});
}
/**
* Update dictionary for the word with the ngramContext if the word is not a distracter.
*/
public void updateEntriesForWordWithCheckingDistracter(@Nonnull final NgramContext ngramContext,
final String word, final boolean isValidWord, final int count, final int timestamp,
@Nonnull final DistracterFilter distracterFilter) {
updateDictionaryWithWriteLockIfWordIsNotADistracter(new Runnable() {
@Override
public void run() {
if (!mBinaryDictionary.updateEntriesForWordWithNgramContext(ngramContext, word,
isValidWord, count, timestamp)) {
if (DEBUG) {
Log.e(TAG, "Cannot update counter. word: " + word
+ " context: "+ ngramContext.toString());
}
}
}
}, word, distracterFilter);
}
public interface AddMultipleDictionaryEntriesCallback {
public void onFinished();
}
@ -410,7 +444,7 @@ abstract public class ExpandableBinaryDictionary extends Dictionary {
* Dynamically add multiple entries to the dictionary.
*/
public void addMultipleDictionaryEntriesDynamically(
final ArrayList<LanguageModelParam> languageModelParams,
@Nonnull final ArrayList<LanguageModelParam> languageModelParams,
final AddMultipleDictionaryEntriesCallback callback) {
reloadDictionaryIfRequired();
asyncExecuteTaskWithWriteLock(new Runnable() {

5
java/src/com/android/inputmethod/latin/NgramContext.java
View File

@ -158,11 +158,6 @@ public class NgramContext {
}
}
public NgramContext getTrimmedNgramContext(final int maxPrevWordCount) {
final int newSize = Math.min(maxPrevWordCount, mPrevWordsCount);
return new NgramContext(this /* prevWordsInfo */, newSize);
}
public int getPrevWordCount() {
return mPrevWordsCount;
}

31
java/src/com/android/inputmethod/latin/personalization/UserHistoryDictionary.java
View File

@ -65,34 +65,7 @@ public class UserHistoryDictionary extends DecayingExpandableBinaryDictionaryBas
if (word.length() > Constants.DICTIONARY_MAX_WORD_LENGTH) {
return;
}
final int frequency = isValid ?
FREQUENCY_FOR_WORDS_IN_DICTS : FREQUENCY_FOR_WORDS_NOT_IN_DICTS;
userHistoryDictionary.addUnigramEntryWithCheckingDistracter(word, frequency,
null /* shortcutTarget */, 0 /* shortcutFreq */, false /* isNotAWord */,
false /* isBlacklisted */, timestamp, distracterFilter);
final boolean isBeginningOfSentenceContext = ngramContext.isBeginningOfSentenceContext();
final NgramContext ngramContextToBeSaved =
ngramContext.getTrimmedNgramContext(SUPPORTED_NGRAM - 1);
for (int i = 0; i < ngramContextToBeSaved.getPrevWordCount(); i++) {
final CharSequence prevWord = ngramContextToBeSaved.getNthPrevWord(1 /* n */);
if (prevWord == null || (prevWord.length() > Constants.DICTIONARY_MAX_WORD_LENGTH)) {
return;
}
// Do not insert a word as a bigram of itself
if (i == 0 && TextUtils.equals(word, prevWord)) {
return;
}
if (isBeginningOfSentenceContext) {
// Beginning-of-Sentence n-gram entry is added as an n-gram entry of an OOV word.
userHistoryDictionary.addNgramEntry(
ngramContextToBeSaved.getTrimmedNgramContext(i + 1), word,
FREQUENCY_FOR_WORDS_NOT_IN_DICTS, timestamp);
} else {
userHistoryDictionary.addNgramEntry(
ngramContextToBeSaved.getTrimmedNgramContext(i + 1), word, frequency,
timestamp);
}
}
userHistoryDictionary.updateEntriesForWordWithCheckingDistracter(ngramContext, word,
isValid, 1 /* count */, timestamp, distracterFilter);
}
}