diff --git a/java/src/com/android/inputmethod/latin/BinaryDictionary.java b/java/src/com/android/inputmethod/latin/BinaryDictionary.java index 86c265f86..10dea749d 100644 --- a/java/src/com/android/inputmethod/latin/BinaryDictionary.java +++ b/java/src/com/android/inputmethod/latin/BinaryDictionary.java @@ -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; diff --git a/java/src/com/android/inputmethod/latin/ExpandableBinaryDictionary.java b/java/src/com/android/inputmethod/latin/ExpandableBinaryDictionary.java index 1bdadc30b..d24f80a45 100644 --- a/java/src/com/android/inputmethod/latin/ExpandableBinaryDictionary.java +++ b/java/src/com/android/inputmethod/latin/ExpandableBinaryDictionary.java @@ -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() { @@ -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 languageModelParams, + @Nonnull final ArrayList languageModelParams, final AddMultipleDictionaryEntriesCallback callback) { reloadDictionaryIfRequired(); asyncExecuteTaskWithWriteLock(new Runnable() { diff --git a/java/src/com/android/inputmethod/latin/NgramContext.java b/java/src/com/android/inputmethod/latin/NgramContext.java index 6d438584f..a02531cc4 100644 --- a/java/src/com/android/inputmethod/latin/NgramContext.java +++ b/java/src/com/android/inputmethod/latin/NgramContext.java @@ -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; } diff --git a/java/src/com/android/inputmethod/latin/personalization/UserHistoryDictionary.java b/java/src/com/android/inputmethod/latin/personalization/UserHistoryDictionary.java index d61684698..59761547d 100644 --- a/java/src/com/android/inputmethod/latin/personalization/UserHistoryDictionary.java +++ b/java/src/com/android/inputmethod/latin/personalization/UserHistoryDictionary.java @@ -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); } }