Make spell checker use dictionary facilitator.
Bug: 13630847 Change-Id: I07d17ccf5ce0755f63a0b8d236d77600baaf62b6
This commit is contained in:
Keisuke Kuroyanagi
parent
3b8f2ece40
commit
9e76304d60
6 changed files with 236 additions and 537 deletions
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@ -16,22 +16,31 @@
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package com.android.inputmethod.latin.spellcheck;
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import android.content.Context;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.preference.PreferenceManager;
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import android.service.textservice.SpellCheckerService;
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import android.text.InputType;
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import android.util.Log;
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import android.util.LruCache;
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import android.view.inputmethod.EditorInfo;
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import android.view.inputmethod.InputMethodSubtype;
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import android.view.textservice.SuggestionsInfo;
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import com.android.inputmethod.keyboard.Keyboard;
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import com.android.inputmethod.keyboard.KeyboardId;
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import com.android.inputmethod.keyboard.KeyboardLayoutSet;
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import com.android.inputmethod.keyboard.ProximityInfo;
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import com.android.inputmethod.latin.ContactsBinaryDictionary;
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import com.android.inputmethod.latin.Dictionary;
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import com.android.inputmethod.latin.DictionaryCollection;
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import com.android.inputmethod.latin.DictionaryFacilitator;
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import com.android.inputmethod.latin.DictionaryFactory;
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import com.android.inputmethod.latin.PrevWordsInfo;
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import com.android.inputmethod.latin.R;
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import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
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import com.android.inputmethod.latin.settings.SettingsValuesForSuggestion;
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import com.android.inputmethod.latin.UserBinaryDictionary;
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import com.android.inputmethod.latin.utils.AdditionalSubtypeUtils;
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import com.android.inputmethod.latin.utils.BinaryDictionaryUtils;
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@ -39,15 +48,23 @@ import com.android.inputmethod.latin.utils.CollectionUtils;
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import com.android.inputmethod.latin.utils.LocaleUtils;
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import com.android.inputmethod.latin.utils.ScriptUtils;
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import com.android.inputmethod.latin.utils.StringUtils;
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import com.android.inputmethod.latin.utils.SuggestionResults;
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import com.android.inputmethod.latin.WordComposer;
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import java.lang.ref.WeakReference;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Locale;
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import java.util.Map;
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import java.util.TreeMap;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.ConcurrentLinkedQueue;
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import java.util.concurrent.Semaphore;
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import java.util.concurrent.TimeUnit;
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/**
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* Service for spell checking, using LatinIME's dictionaries and mechanisms.
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@ -56,31 +73,79 @@ public final class AndroidSpellCheckerService extends SpellCheckerService
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implements SharedPreferences.OnSharedPreferenceChangeListener {
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private static final String TAG = AndroidSpellCheckerService.class.getSimpleName();
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private static final boolean DBG = false;
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private static final int POOL_SIZE = 2;
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public static final String PREF_USE_CONTACTS_KEY = "pref_spellcheck_use_contacts";
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private static final int SPELLCHECKER_DUMMY_KEYBOARD_WIDTH = 480;
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private static final int SPELLCHECKER_DUMMY_KEYBOARD_HEIGHT = 368;
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private final static String[] EMPTY_STRING_ARRAY = new String[0];
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private Map<String, DictionaryPool> mDictionaryPools = CollectionUtils.newSynchronizedTreeMap();
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private Map<String, UserBinaryDictionary> mUserDictionaries =
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CollectionUtils.newSynchronizedTreeMap();
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private ContactsBinaryDictionary mContactsDictionary;
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private static final String DICTIONARY_NAME_PREFIX = "spellcheck_";
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private static final int WAIT_FOR_LOADING_MAIN_DICT_IN_MILLISECONDS = 1000;
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private static final int MAX_RETRY_COUNT_FOR_WAITING_FOR_LOADING_DICT = 5;
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private static final String[] EMPTY_STRING_ARRAY = new String[0];
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private final HashSet<Locale> mCachedLocales = new HashSet<>();
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private final int MAX_NUM_OF_THREADS_READ_DICTIONARY = 2;
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private final Semaphore mSemaphore = new Semaphore(MAX_NUM_OF_THREADS_READ_DICTIONARY,
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true /* fair */);
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// TODO: Make each spell checker session has its own session id.
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private final ConcurrentLinkedQueue<Integer> mSessionIdPool = new ConcurrentLinkedQueue<>();
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private static class DictionaryFacilitatorLruCache extends
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LruCache<Locale, DictionaryFacilitator> {
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private final HashSet<Locale> mCachedLocales;
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public DictionaryFacilitatorLruCache(final HashSet<Locale> cachedLocales, int maxSize) {
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super(maxSize);
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mCachedLocales = cachedLocales;
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}
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@Override
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protected void entryRemoved(boolean evicted, Locale key,
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DictionaryFacilitator oldValue, DictionaryFacilitator newValue) {
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if (oldValue != null && oldValue != newValue) {
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oldValue.closeDictionaries();
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}
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if (key != null && newValue == null) {
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// Remove locale from the cache when the dictionary facilitator for the locale is
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// evicted and new facilitator is not set for the locale.
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mCachedLocales.remove(key);
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if (size() >= maxSize()) {
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Log.w(TAG, "DictionaryFacilitator for " + key.toString()
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+ " has been evicted due to cache size limit."
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+ " size: " + size() + ", maxSize: " + maxSize());
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}
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}
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}
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}
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private static final int MAX_DICTIONARY_FACILITATOR_COUNT = 3;
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private final LruCache<Locale, DictionaryFacilitator> mDictionaryFacilitatorCache =
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new DictionaryFacilitatorLruCache(mCachedLocales, MAX_DICTIONARY_FACILITATOR_COUNT);
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private final ConcurrentHashMap<Locale, Keyboard> mKeyboardCache = new ConcurrentHashMap<>();
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// The threshold for a suggestion to be considered "recommended".
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private float mRecommendedThreshold;
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// Whether to use the contacts dictionary
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private boolean mUseContactsDictionary;
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private final Object mUseContactsLock = new Object();
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private final HashSet<WeakReference<DictionaryCollection>> mDictionaryCollectionsList =
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new HashSet<>();
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// TODO: make a spell checker option to block offensive words or not
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private final SettingsValuesForSuggestion mSettingsValuesForSuggestion =
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new SettingsValuesForSuggestion(true /* blockPotentiallyOffensive */,
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true /* spaceAwareGestureEnabled */,
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null /* additionalFeaturesSettingValues */);
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private final Object mDictionaryLock = new Object();
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public static final String SINGLE_QUOTE = "\u0027";
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public static final String APOSTROPHE = "\u2019";
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public AndroidSpellCheckerService() {
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super();
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for (int i = 0; i < MAX_NUM_OF_THREADS_READ_DICTIONARY; i++) {
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mSessionIdPool.add(i);
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}
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}
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@Override public void onCreate() {
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super.onCreate();
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mRecommendedThreshold =
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@ -106,52 +171,21 @@ public final class AndroidSpellCheckerService extends SpellCheckerService
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@Override
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public void onSharedPreferenceChanged(final SharedPreferences prefs, final String key) {
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if (!PREF_USE_CONTACTS_KEY.equals(key)) return;
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synchronized(mUseContactsLock) {
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mUseContactsDictionary = prefs.getBoolean(PREF_USE_CONTACTS_KEY, true);
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if (mUseContactsDictionary) {
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startUsingContactsDictionaryLocked();
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} else {
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stopUsingContactsDictionaryLocked();
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final boolean useContactsDictionary = prefs.getBoolean(PREF_USE_CONTACTS_KEY, true);
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if (useContactsDictionary != mUseContactsDictionary) {
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mSemaphore.acquireUninterruptibly(MAX_NUM_OF_THREADS_READ_DICTIONARY);
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try {
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mUseContactsDictionary = useContactsDictionary;
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for (final Locale locale : mCachedLocales) {
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final DictionaryFacilitator dictionaryFacilitator =
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mDictionaryFacilitatorCache.get(locale);
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resetDictionariesForLocale(this /* context */,
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dictionaryFacilitator, locale, mUseContactsDictionary);
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}
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} finally {
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mSemaphore.release(MAX_NUM_OF_THREADS_READ_DICTIONARY);
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}
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}
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}
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}
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private void startUsingContactsDictionaryLocked() {
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if (null == mContactsDictionary) {
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// TODO: use the right locale for each session
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mContactsDictionary =
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new SynchronouslyLoadedContactsBinaryDictionary(this, Locale.getDefault());
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}
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final Iterator<WeakReference<DictionaryCollection>> iterator =
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mDictionaryCollectionsList.iterator();
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while (iterator.hasNext()) {
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final WeakReference<DictionaryCollection> dictRef = iterator.next();
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final DictionaryCollection dict = dictRef.get();
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if (null == dict) {
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iterator.remove();
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} else {
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dict.addDictionary(mContactsDictionary);
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}
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}
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}
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private void stopUsingContactsDictionaryLocked() {
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if (null == mContactsDictionary) return;
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final Dictionary contactsDict = mContactsDictionary;
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// TODO: revert to the concrete type when USE_BINARY_CONTACTS_DICTIONARY is no longer needed
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mContactsDictionary = null;
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final Iterator<WeakReference<DictionaryCollection>> iterator =
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mDictionaryCollectionsList.iterator();
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while (iterator.hasNext()) {
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final WeakReference<DictionaryCollection> dictRef = iterator.next();
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final DictionaryCollection dict = dictRef.get();
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if (null == dict) {
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iterator.remove();
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} else {
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dict.removeDictionary(contactsDict);
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}
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}
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contactsDict.close();
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}
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@Override
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@ -203,11 +237,6 @@ public final class AndroidSpellCheckerService extends SpellCheckerService
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private final int mMaxLength;
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private int mLength = 0;
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// The two following attributes are only ever filled if the requested max length
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// is 0 (or less, which is treated the same).
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private String mBestSuggestion = null;
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private int mBestScore = Integer.MIN_VALUE; // As small as possible
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SuggestionsGatherer(final String originalText, final float recommendedThreshold,
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final int maxLength) {
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mOriginalText = originalText;
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@ -226,20 +255,6 @@ public final class AndroidSpellCheckerService extends SpellCheckerService
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// Weak <- insertIndex == 0, ..., insertIndex == mLength -> Strong
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if (insertIndex == 0 && mLength >= mMaxLength) {
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// In the future, we may want to keep track of the best suggestion score even if
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// we are asked for 0 suggestions. In this case, we can use the following
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// (tested) code to keep it:
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// If the maxLength is 0 (should never be less, but if it is, it's treated as 0)
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// then we need to keep track of the best suggestion in mBestScore and
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// mBestSuggestion. This is so that we know whether the best suggestion makes
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// the score cutoff, since we need to know that to return a meaningful
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// looksLikeTypo.
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// if (0 >= mMaxLength) {
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// if (score > mBestScore) {
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// mBestScore = score;
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// mBestSuggestion = new String(word, wordOffset, wordLength);
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// }
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// }
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return true;
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}
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@ -264,20 +279,8 @@ public final class AndroidSpellCheckerService extends SpellCheckerService
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final String[] gatheredSuggestions;
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final boolean hasRecommendedSuggestions;
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if (0 == mLength) {
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// TODO: the comment below describes what is intended, but in the practice
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// mBestSuggestion is only ever set to null so it doesn't work. Fix this.
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// Either we found no suggestions, or we found some BUT the max length was 0.
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// If we found some mBestSuggestion will not be null. If it is null, then
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// we found none, regardless of the max length.
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if (null == mBestSuggestion) {
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gatheredSuggestions = null;
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hasRecommendedSuggestions = false;
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} else {
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gatheredSuggestions = EMPTY_STRING_ARRAY;
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final float normalizedScore = BinaryDictionaryUtils.calcNormalizedScore(
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mOriginalText, mBestSuggestion, mBestScore);
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hasRecommendedSuggestions = (normalizedScore > mRecommendedThreshold);
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}
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gatheredSuggestions = null;
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hasRecommendedSuggestions = false;
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} else {
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if (DBG) {
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if (mLength != mSuggestions.size()) {
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@ -323,85 +326,114 @@ public final class AndroidSpellCheckerService extends SpellCheckerService
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}
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}
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public boolean isValidWord(final Locale locale, final String word) {
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mSemaphore.acquireUninterruptibly();
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try {
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DictionaryFacilitator dictionaryFacilitatorForLocale =
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getDictionaryFacilitatorForLocaleLocked(locale);
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return dictionaryFacilitatorForLocale.isValidWord(word, false /* igroreCase */);
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} finally {
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mSemaphore.release();
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}
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}
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public SuggestionResults getSuggestionResults(final Locale locale, final WordComposer composer,
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final PrevWordsInfo prevWordsInfo, final ProximityInfo proximityInfo) {
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Integer sessionId = null;
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mSemaphore.acquireUninterruptibly();
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try {
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sessionId = mSessionIdPool.poll();
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DictionaryFacilitator dictionaryFacilitatorForLocale =
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getDictionaryFacilitatorForLocaleLocked(locale);
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return dictionaryFacilitatorForLocale.getSuggestionResults(composer, prevWordsInfo,
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proximityInfo, mSettingsValuesForSuggestion, sessionId);
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} finally {
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if (sessionId != null) {
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mSessionIdPool.add(sessionId);
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}
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mSemaphore.release();
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}
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}
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public boolean hasMainDictionaryForLocale(final Locale locale) {
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mSemaphore.acquireUninterruptibly();
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try {
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final DictionaryFacilitator dictionaryFacilitator =
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getDictionaryFacilitatorForLocaleLocked(locale);
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return dictionaryFacilitator.hasInitializedMainDictionary();
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} finally {
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mSemaphore.release();
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}
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}
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private DictionaryFacilitator getDictionaryFacilitatorForLocaleLocked(final Locale locale) {
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DictionaryFacilitator dictionaryFacilitatorForLocale =
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mDictionaryFacilitatorCache.get(locale);
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if (dictionaryFacilitatorForLocale == null) {
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dictionaryFacilitatorForLocale = new DictionaryFacilitator();
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mDictionaryFacilitatorCache.put(locale, dictionaryFacilitatorForLocale);
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mCachedLocales.add(locale);
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resetDictionariesForLocale(this /* context */, dictionaryFacilitatorForLocale,
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locale, mUseContactsDictionary);
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}
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return dictionaryFacilitatorForLocale;
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}
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private static void resetDictionariesForLocale(final Context context,
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final DictionaryFacilitator dictionaryFacilitator, final Locale locale,
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final boolean useContactsDictionary) {
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dictionaryFacilitator.resetDictionariesWithDictNamePrefix(context, locale,
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useContactsDictionary, false /* usePersonalizedDicts */,
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false /* forceReloadMainDictionary */, null /* listener */,
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DICTIONARY_NAME_PREFIX);
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for (int i = 0; i < MAX_RETRY_COUNT_FOR_WAITING_FOR_LOADING_DICT; i++) {
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try {
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dictionaryFacilitator.waitForLoadingMainDictionary(
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WAIT_FOR_LOADING_MAIN_DICT_IN_MILLISECONDS, TimeUnit.MILLISECONDS);
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return;
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} catch (final InterruptedException e) {
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Log.i(TAG, "Interrupted during waiting for loading main dictionary.", e);
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if (i < MAX_RETRY_COUNT_FOR_WAITING_FOR_LOADING_DICT - 1) {
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Log.i(TAG, "Retry", e);
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} else {
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Log.w(TAG, "Give up retrying. Retried "
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+ MAX_RETRY_COUNT_FOR_WAITING_FOR_LOADING_DICT + " times.", e);
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}
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}
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}
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}
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@Override
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public boolean onUnbind(final Intent intent) {
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closeAllDictionaries();
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mSemaphore.acquireUninterruptibly(MAX_NUM_OF_THREADS_READ_DICTIONARY);
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try {
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mDictionaryFacilitatorCache.evictAll();
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mCachedLocales.clear();
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} finally {
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mSemaphore.release(MAX_NUM_OF_THREADS_READ_DICTIONARY);
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}
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mKeyboardCache.clear();
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return false;
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}
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private void closeAllDictionaries() {
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final Map<String, DictionaryPool> oldPools = mDictionaryPools;
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mDictionaryPools = CollectionUtils.newSynchronizedTreeMap();
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final Map<String, UserBinaryDictionary> oldUserDictionaries = mUserDictionaries;
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mUserDictionaries = CollectionUtils.newSynchronizedTreeMap();
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new Thread("spellchecker_close_dicts") {
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@Override
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public void run() {
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// Contacts dictionary can be closed multiple times here. If the dictionary is
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// already closed, extra closings are no-ops, so it's safe.
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for (DictionaryPool pool : oldPools.values()) {
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pool.close();
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}
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for (Dictionary dict : oldUserDictionaries.values()) {
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dict.close();
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}
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synchronized (mUseContactsLock) {
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if (null != mContactsDictionary) {
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// The synchronously loaded contacts dictionary should have been in one
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// or several pools, but it is shielded against multiple closing and it's
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// safe to call it several times.
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final ContactsBinaryDictionary dictToClose = mContactsDictionary;
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// TODO: revert to the concrete type when USE_BINARY_CONTACTS_DICTIONARY
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// is no longer needed
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mContactsDictionary = null;
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dictToClose.close();
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}
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}
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public Keyboard getKeyboardForLocale(final Locale locale) {
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Keyboard keyboard = mKeyboardCache.get(locale);
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if (keyboard == null) {
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keyboard = createKeyboardForLocale(locale);
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if (keyboard != null) {
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mKeyboardCache.put(locale, keyboard);
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}
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}.start();
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}
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public DictionaryPool getDictionaryPool(final String locale) {
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DictionaryPool pool = mDictionaryPools.get(locale);
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if (null == pool) {
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final Locale localeObject = LocaleUtils.constructLocaleFromString(locale);
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pool = new DictionaryPool(POOL_SIZE, this, localeObject);
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mDictionaryPools.put(locale, pool);
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}
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return pool;
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return keyboard;
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}
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public DictAndKeyboard createDictAndKeyboard(final Locale locale) {
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private Keyboard createKeyboardForLocale(final Locale locale) {
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final int script = ScriptUtils.getScriptFromSpellCheckerLocale(locale);
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final String keyboardLayoutName = getKeyboardLayoutNameForScript(script);
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final InputMethodSubtype subtype = AdditionalSubtypeUtils.createDummyAdditionalSubtype(
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locale.toString(), keyboardLayoutName);
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final KeyboardLayoutSet keyboardLayoutSet = createKeyboardSetForSpellChecker(subtype);
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final DictionaryCollection dictionaryCollection =
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DictionaryFactory.createMainDictionaryFromManager(this, locale,
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true /* useFullEditDistance */);
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final String localeStr = locale.toString();
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UserBinaryDictionary userDictionary = mUserDictionaries.get(localeStr);
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if (null == userDictionary) {
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||||
userDictionary = new SynchronouslyLoadedUserBinaryDictionary(this, locale, true);
|
||||
mUserDictionaries.put(localeStr, userDictionary);
|
||||
}
|
||||
dictionaryCollection.addDictionary(userDictionary);
|
||||
synchronized (mUseContactsLock) {
|
||||
if (mUseContactsDictionary) {
|
||||
if (null == mContactsDictionary) {
|
||||
// TODO: use the right locale. We can't do it right now because the
|
||||
// spell checker is reusing the contacts dictionary across sessions
|
||||
// without regard for their locale, so we need to fix that first.
|
||||
mContactsDictionary = new SynchronouslyLoadedContactsBinaryDictionary(this,
|
||||
Locale.getDefault());
|
||||
}
|
||||
}
|
||||
dictionaryCollection.addDictionary(mContactsDictionary);
|
||||
mDictionaryCollectionsList.add(new WeakReference<>(dictionaryCollection));
|
||||
}
|
||||
return new DictAndKeyboard(dictionaryCollection, keyboardLayoutSet);
|
||||
return keyboardLayoutSet.getKeyboard(KeyboardId.ELEMENT_ALPHABET);
|
||||
}
|
||||
|
||||
private KeyboardLayoutSet createKeyboardSetForSpellChecker(final InputMethodSubtype subtype) {
|
||||
|
|
|
|||
|
|
@ -28,8 +28,9 @@ import android.view.textservice.SuggestionsInfo;
|
|||
import android.view.textservice.TextInfo;
|
||||
|
||||
import com.android.inputmethod.compat.SuggestionsInfoCompatUtils;
|
||||
import com.android.inputmethod.keyboard.Keyboard;
|
||||
import com.android.inputmethod.keyboard.ProximityInfo;
|
||||
import com.android.inputmethod.latin.Constants;
|
||||
import com.android.inputmethod.latin.Dictionary;
|
||||
import com.android.inputmethod.latin.PrevWordsInfo;
|
||||
import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
|
||||
import com.android.inputmethod.latin.WordComposer;
|
||||
|
|
@ -39,17 +40,15 @@ import com.android.inputmethod.latin.utils.CoordinateUtils;
|
|||
import com.android.inputmethod.latin.utils.LocaleUtils;
|
||||
import com.android.inputmethod.latin.utils.ScriptUtils;
|
||||
import com.android.inputmethod.latin.utils.StringUtils;
|
||||
import com.android.inputmethod.latin.utils.SuggestionResults;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.Locale;
|
||||
|
||||
public abstract class AndroidWordLevelSpellCheckerSession extends Session {
|
||||
private static final String TAG = AndroidWordLevelSpellCheckerSession.class.getSimpleName();
|
||||
private static final boolean DBG = false;
|
||||
|
||||
// Immutable, but need the locale which is not available in the constructor yet
|
||||
private DictionaryPool mDictionaryPool;
|
||||
// Likewise
|
||||
// Immutable, but not available in the constructor.
|
||||
private Locale mLocale;
|
||||
// Cache this for performance
|
||||
private int mScript; // One of SCRIPT_LATIN or SCRIPT_CYRILLIC for now.
|
||||
|
|
@ -116,7 +115,6 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
|
|||
@Override
|
||||
public void onCreate() {
|
||||
final String localeString = getLocale();
|
||||
mDictionaryPool = mService.getDictionaryPool(localeString);
|
||||
mLocale = LocaleUtils.constructLocaleFromString(localeString);
|
||||
mScript = ScriptUtils.getScriptFromSpellCheckerLocale(mLocale);
|
||||
}
|
||||
|
|
@ -191,24 +189,24 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
|
|||
* If the "TEXT" is fully upper case, we test the exact string "TEXT", the lower-cased
|
||||
* version of it "text" and the capitalized version of it "Text".
|
||||
*/
|
||||
private boolean isInDictForAnyCapitalization(final Dictionary dict, final String text,
|
||||
final int capitalizeType) {
|
||||
private boolean isInDictForAnyCapitalization(final String text, final int capitalizeType) {
|
||||
// If the word is in there as is, then it's in the dictionary. If not, we'll test lower
|
||||
// case versions, but only if the word is not already all-lower case or mixed case.
|
||||
if (dict.isValidWord(text)) return true;
|
||||
if (mService.isValidWord(mLocale, text)) return true;
|
||||
if (StringUtils.CAPITALIZE_NONE == capitalizeType) return false;
|
||||
|
||||
// If we come here, we have a capitalized word (either First- or All-).
|
||||
// Downcase the word and look it up again. If the word is only capitalized, we
|
||||
// tested all possibilities, so if it's still negative we can return false.
|
||||
final String lowerCaseText = text.toLowerCase(mLocale);
|
||||
if (dict.isValidWord(lowerCaseText)) return true;
|
||||
if (mService.isValidWord(mLocale, lowerCaseText)) return true;
|
||||
if (StringUtils.CAPITALIZE_FIRST == capitalizeType) return false;
|
||||
|
||||
// If the lower case version is not in the dictionary, it's still possible
|
||||
// that we have an all-caps version of a word that needs to be capitalized
|
||||
// according to the dictionary. E.g. "GERMANS" only exists in the dictionary as "Germans".
|
||||
return dict.isValidWord(StringUtils.capitalizeFirstAndDowncaseRest(lowerCaseText, mLocale));
|
||||
return mService.isValidWord(mLocale,
|
||||
StringUtils.capitalizeFirstAndDowncaseRest(lowerCaseText, mLocale));
|
||||
}
|
||||
|
||||
// Note : this must be reentrant
|
||||
|
|
@ -236,46 +234,28 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
|
|||
return new SuggestionsInfo(
|
||||
cachedSuggestionsParams.mFlags, cachedSuggestionsParams.mSuggestions);
|
||||
}
|
||||
|
||||
final int checkability = getCheckabilityInScript(inText, mScript);
|
||||
if (CHECKABILITY_CHECKABLE != checkability) {
|
||||
DictAndKeyboard dictInfo = null;
|
||||
try {
|
||||
dictInfo = mDictionaryPool.pollWithDefaultTimeout();
|
||||
if (!DictionaryPool.isAValidDictionary(dictInfo)) {
|
||||
return AndroidSpellCheckerService.getNotInDictEmptySuggestions(
|
||||
false /* reportAsTypo */);
|
||||
}
|
||||
if (CHECKABILITY_CONTAINS_PERIOD == checkability) {
|
||||
final String[] splitText = inText.split(Constants.REGEXP_PERIOD);
|
||||
boolean allWordsAreValid = true;
|
||||
for (final String word : splitText) {
|
||||
if (!dictInfo.mDictionary.isValidWord(word)) {
|
||||
allWordsAreValid = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (allWordsAreValid) {
|
||||
return new SuggestionsInfo(SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO
|
||||
| SuggestionsInfo.RESULT_ATTR_HAS_RECOMMENDED_SUGGESTIONS,
|
||||
new String[] {
|
||||
TextUtils.join(Constants.STRING_SPACE, splitText),
|
||||
TextUtils.join(Constants.STRING_PERIOD_AND_SPACE,
|
||||
splitText) });
|
||||
if (CHECKABILITY_CONTAINS_PERIOD == checkability) {
|
||||
final String[] splitText = inText.split(Constants.REGEXP_PERIOD);
|
||||
boolean allWordsAreValid = true;
|
||||
for (final String word : splitText) {
|
||||
if (!mService.isValidWord(mLocale, word)) {
|
||||
allWordsAreValid = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
return dictInfo.mDictionary.isValidWord(inText)
|
||||
? AndroidSpellCheckerService.getInDictEmptySuggestions()
|
||||
: AndroidSpellCheckerService.getNotInDictEmptySuggestions(
|
||||
CHECKABILITY_CONTAINS_PERIOD == checkability
|
||||
/* reportAsTypo */);
|
||||
} finally {
|
||||
if (null != dictInfo) {
|
||||
if (!mDictionaryPool.offer(dictInfo)) {
|
||||
Log.e(TAG, "Can't re-insert a dictionary into its pool");
|
||||
}
|
||||
if (allWordsAreValid) {
|
||||
return new SuggestionsInfo(SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO
|
||||
| SuggestionsInfo.RESULT_ATTR_HAS_RECOMMENDED_SUGGESTIONS,
|
||||
new String[] {
|
||||
TextUtils.join(Constants.STRING_SPACE, splitText) });
|
||||
}
|
||||
}
|
||||
return mService.isValidWord(mLocale, inText) ?
|
||||
AndroidSpellCheckerService.getInDictEmptySuggestions() :
|
||||
AndroidSpellCheckerService.getNotInDictEmptySuggestions(
|
||||
CHECKABILITY_CONTAINS_PERIOD == checkability /* reportAsTypo */);
|
||||
}
|
||||
final String text = inText.replaceAll(
|
||||
AndroidSpellCheckerService.APOSTROPHE, AndroidSpellCheckerService.SINGLE_QUOTE);
|
||||
|
|
@ -289,48 +269,34 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
|
|||
|
||||
final int capitalizeType = StringUtils.getCapitalizationType(text);
|
||||
boolean isInDict = true;
|
||||
DictAndKeyboard dictInfo = null;
|
||||
try {
|
||||
dictInfo = mDictionaryPool.pollWithDefaultTimeout();
|
||||
if (!DictionaryPool.isAValidDictionary(dictInfo)) {
|
||||
return AndroidSpellCheckerService.getNotInDictEmptySuggestions(
|
||||
false /* reportAsTypo */);
|
||||
}
|
||||
final WordComposer composer = new WordComposer();
|
||||
final int[] codePoints = StringUtils.toCodePointArray(text);
|
||||
final int[] coordinates;
|
||||
if (null == dictInfo.mKeyboard) {
|
||||
coordinates = CoordinateUtils.newCoordinateArray(codePoints.length,
|
||||
Constants.NOT_A_COORDINATE, Constants.NOT_A_COORDINATE);
|
||||
} else {
|
||||
coordinates = dictInfo.mKeyboard.getCoordinates(codePoints);
|
||||
}
|
||||
composer.setComposingWord(codePoints, coordinates);
|
||||
// TODO: make a spell checker option to block offensive words or not
|
||||
final ArrayList<SuggestedWordInfo> suggestions =
|
||||
dictInfo.mDictionary.getSuggestions(composer, prevWordsInfo,
|
||||
dictInfo.getProximityInfo(),
|
||||
new SettingsValuesForSuggestion(
|
||||
true /* blockPotentiallyOffensive */,
|
||||
true /* spaceAwareGestureEnabled */,
|
||||
null /* additionalFeaturesSettingValues */),
|
||||
0 /* sessionId */,
|
||||
null /* inOutLanguageWeight */);
|
||||
if (suggestions != null) {
|
||||
for (final SuggestedWordInfo suggestion : suggestions) {
|
||||
final String suggestionStr = suggestion.mWord;
|
||||
suggestionsGatherer.addWord(suggestionStr.toCharArray(), null, 0,
|
||||
suggestionStr.length(), suggestion.mScore);
|
||||
}
|
||||
}
|
||||
isInDict = isInDictForAnyCapitalization(dictInfo.mDictionary, text, capitalizeType);
|
||||
} finally {
|
||||
if (null != dictInfo) {
|
||||
if (!mDictionaryPool.offer(dictInfo)) {
|
||||
Log.e(TAG, "Can't re-insert a dictionary into its pool");
|
||||
}
|
||||
if (!mService.hasMainDictionaryForLocale(mLocale)) {
|
||||
return AndroidSpellCheckerService.getNotInDictEmptySuggestions(
|
||||
false /* reportAsTypo */);
|
||||
}
|
||||
final Keyboard keyboard = mService.getKeyboardForLocale(mLocale);
|
||||
final WordComposer composer = new WordComposer();
|
||||
final int[] codePoints = StringUtils.toCodePointArray(text);
|
||||
final int[] coordinates;
|
||||
final ProximityInfo proximityInfo;
|
||||
if (null == keyboard) {
|
||||
coordinates = CoordinateUtils.newCoordinateArray(codePoints.length,
|
||||
Constants.NOT_A_COORDINATE, Constants.NOT_A_COORDINATE);
|
||||
proximityInfo = null;
|
||||
} else {
|
||||
coordinates = keyboard.getCoordinates(codePoints);
|
||||
proximityInfo = keyboard.getProximityInfo();
|
||||
}
|
||||
composer.setComposingWord(codePoints, coordinates);
|
||||
final SuggestionResults suggestionResults = mService.getSuggestionResults(
|
||||
mLocale, composer, prevWordsInfo, proximityInfo);
|
||||
if (suggestionResults != null) {
|
||||
for (final SuggestedWordInfo suggestion : suggestionResults) {
|
||||
final String suggestionStr = suggestion.mWord;
|
||||
suggestionsGatherer.addWord(suggestionStr.toCharArray(), null, 0,
|
||||
suggestionStr.length(), suggestion.mScore);
|
||||
}
|
||||
}
|
||||
isInDict = isInDictForAnyCapitalization(text, capitalizeType);
|
||||
|
||||
final SuggestionsGatherer.Result result = suggestionsGatherer.getResults(
|
||||
capitalizeType, mLocale);
|
||||
|
|
|
|||
|
|
@ -1,45 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2011 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.
|
||||
*/
|
||||
|
||||
package com.android.inputmethod.latin.spellcheck;
|
||||
|
||||
import com.android.inputmethod.keyboard.Keyboard;
|
||||
import com.android.inputmethod.keyboard.KeyboardId;
|
||||
import com.android.inputmethod.keyboard.KeyboardLayoutSet;
|
||||
import com.android.inputmethod.keyboard.ProximityInfo;
|
||||
import com.android.inputmethod.latin.Dictionary;
|
||||
|
||||
/**
|
||||
* A container for a Dictionary and a Keyboard.
|
||||
*/
|
||||
public final class DictAndKeyboard {
|
||||
public final Dictionary mDictionary;
|
||||
public final Keyboard mKeyboard;
|
||||
|
||||
public DictAndKeyboard(
|
||||
final Dictionary dictionary, final KeyboardLayoutSet keyboardLayoutSet) {
|
||||
mDictionary = dictionary;
|
||||
if (keyboardLayoutSet == null) {
|
||||
mKeyboard = null;
|
||||
return;
|
||||
}
|
||||
mKeyboard = keyboardLayoutSet.getKeyboard(KeyboardId.ELEMENT_ALPHABET);
|
||||
}
|
||||
|
||||
public ProximityInfo getProximityInfo() {
|
||||
return mKeyboard == null ? null : mKeyboard.getProximityInfo();
|
||||
}
|
||||
}
|
||||
|
|
@ -1,137 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2011 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.
|
||||
*/
|
||||
|
||||
package com.android.inputmethod.latin.spellcheck;
|
||||
|
||||
import android.util.Log;
|
||||
|
||||
import com.android.inputmethod.keyboard.ProximityInfo;
|
||||
import com.android.inputmethod.latin.Dictionary;
|
||||
import com.android.inputmethod.latin.PrevWordsInfo;
|
||||
import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
|
||||
import com.android.inputmethod.latin.settings.SettingsValuesForSuggestion;
|
||||
import com.android.inputmethod.latin.WordComposer;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.Locale;
|
||||
import java.util.concurrent.LinkedBlockingQueue;
|
||||
import java.util.concurrent.TimeUnit;
|
||||
|
||||
/**
|
||||
* A blocking queue that creates dictionaries up to a certain limit as necessary.
|
||||
* As a deadlock-detecting device, if waiting for more than TIMEOUT = 3 seconds, we
|
||||
* will clear the queue and generate its contents again. This is transparent for
|
||||
* the client code, but may help with sloppy clients.
|
||||
*/
|
||||
@SuppressWarnings("serial")
|
||||
public final class DictionaryPool extends LinkedBlockingQueue<DictAndKeyboard> {
|
||||
private final static String TAG = DictionaryPool.class.getSimpleName();
|
||||
// How many seconds we wait for a dictionary to become available. Past this delay, we give up in
|
||||
// fear some bug caused a deadlock, and reset the whole pool.
|
||||
private final static int TIMEOUT = 3;
|
||||
private final AndroidSpellCheckerService mService;
|
||||
private final int mMaxSize;
|
||||
private final Locale mLocale;
|
||||
private int mSize;
|
||||
private volatile boolean mClosed;
|
||||
final static ArrayList<SuggestedWordInfo> noSuggestions = new ArrayList<>();
|
||||
private final static DictAndKeyboard dummyDict = new DictAndKeyboard(
|
||||
new Dictionary(Dictionary.TYPE_MAIN) {
|
||||
// TODO: this dummy dictionary should be a singleton in the Dictionary class.
|
||||
@Override
|
||||
public ArrayList<SuggestedWordInfo> getSuggestions(final WordComposer composer,
|
||||
final PrevWordsInfo prevWordsInfo, final ProximityInfo proximityInfo,
|
||||
final SettingsValuesForSuggestion settingsValuesForSuggestion,
|
||||
final int sessionId, final float[] inOutLanguageWeight) {
|
||||
return noSuggestions;
|
||||
}
|
||||
@Override
|
||||
public boolean isInDictionary(final String word) {
|
||||
// This is never called. However if for some strange reason it ever gets
|
||||
// called, returning true is less destructive (it will not underline the
|
||||
// word in red).
|
||||
return true;
|
||||
}
|
||||
}, null);
|
||||
|
||||
static public boolean isAValidDictionary(final DictAndKeyboard dictInfo) {
|
||||
return null != dictInfo && dummyDict != dictInfo;
|
||||
}
|
||||
|
||||
public DictionaryPool(final int maxSize, final AndroidSpellCheckerService service,
|
||||
final Locale locale) {
|
||||
super();
|
||||
mMaxSize = maxSize;
|
||||
mService = service;
|
||||
mLocale = locale;
|
||||
mSize = 0;
|
||||
mClosed = false;
|
||||
}
|
||||
|
||||
@Override
|
||||
public DictAndKeyboard poll(final long timeout, final TimeUnit unit)
|
||||
throws InterruptedException {
|
||||
final DictAndKeyboard dict = poll();
|
||||
if (null != dict) return dict;
|
||||
synchronized(this) {
|
||||
if (mSize >= mMaxSize) {
|
||||
// Our pool is already full. Wait until some dictionary is ready, or TIMEOUT
|
||||
// expires to avoid a deadlock.
|
||||
final DictAndKeyboard result = super.poll(timeout, unit);
|
||||
if (null == result) {
|
||||
Log.e(TAG, "Deadlock detected ! Resetting dictionary pool");
|
||||
clear();
|
||||
mSize = 1;
|
||||
return mService.createDictAndKeyboard(mLocale);
|
||||
} else {
|
||||
return result;
|
||||
}
|
||||
} else {
|
||||
++mSize;
|
||||
return mService.createDictAndKeyboard(mLocale);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Convenience method
|
||||
public DictAndKeyboard pollWithDefaultTimeout() {
|
||||
try {
|
||||
return poll(TIMEOUT, TimeUnit.SECONDS);
|
||||
} catch (InterruptedException e) {
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
public void close() {
|
||||
synchronized(this) {
|
||||
mClosed = true;
|
||||
for (DictAndKeyboard dict : this) {
|
||||
dict.mDictionary.close();
|
||||
}
|
||||
clear();
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean offer(final DictAndKeyboard dict) {
|
||||
if (mClosed) {
|
||||
dict.mDictionary.close();
|
||||
return super.offer(dummyDict);
|
||||
} else {
|
||||
return super.offer(dict);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1,56 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2012 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.
|
||||
*/
|
||||
|
||||
package com.android.inputmethod.latin.spellcheck;
|
||||
|
||||
import android.content.Context;
|
||||
|
||||
import com.android.inputmethod.keyboard.ProximityInfo;
|
||||
import com.android.inputmethod.latin.ContactsBinaryDictionary;
|
||||
import com.android.inputmethod.latin.PrevWordsInfo;
|
||||
import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
|
||||
import com.android.inputmethod.latin.settings.SettingsValuesForSuggestion;
|
||||
import com.android.inputmethod.latin.WordComposer;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.Locale;
|
||||
|
||||
public final class SynchronouslyLoadedContactsBinaryDictionary extends ContactsBinaryDictionary {
|
||||
private static final String NAME = "spellcheck_contacts";
|
||||
private final Object mLock = new Object();
|
||||
|
||||
public SynchronouslyLoadedContactsBinaryDictionary(final Context context, final Locale locale) {
|
||||
super(context, locale, null /* dictFile */, NAME);
|
||||
}
|
||||
|
||||
@Override
|
||||
public ArrayList<SuggestedWordInfo> getSuggestions(final WordComposer codes,
|
||||
final PrevWordsInfo prevWordsInfo, final ProximityInfo proximityInfo,
|
||||
final SettingsValuesForSuggestion settingsValuesForSuggestion,
|
||||
final int sessionId, final float[] inOutLanguageWeight) {
|
||||
synchronized (mLock) {
|
||||
return super.getSuggestions(codes, prevWordsInfo, proximityInfo,
|
||||
settingsValuesForSuggestion, sessionId, inOutLanguageWeight);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean isInDictionary(final String word) {
|
||||
synchronized (mLock) {
|
||||
return super.isInDictionary(word);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1,61 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2012 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.
|
||||
*/
|
||||
|
||||
package com.android.inputmethod.latin.spellcheck;
|
||||
|
||||
import android.content.Context;
|
||||
|
||||
import com.android.inputmethod.keyboard.ProximityInfo;
|
||||
import com.android.inputmethod.latin.PrevWordsInfo;
|
||||
import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
|
||||
import com.android.inputmethod.latin.settings.SettingsValuesForSuggestion;
|
||||
import com.android.inputmethod.latin.UserBinaryDictionary;
|
||||
import com.android.inputmethod.latin.WordComposer;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.Locale;
|
||||
|
||||
public final class SynchronouslyLoadedUserBinaryDictionary extends UserBinaryDictionary {
|
||||
private static final String NAME = "spellcheck_user";
|
||||
private final Object mLock = new Object();
|
||||
|
||||
public SynchronouslyLoadedUserBinaryDictionary(final Context context, final Locale locale) {
|
||||
this(context, locale, false /* alsoUseMoreRestrictiveLocales */);
|
||||
}
|
||||
|
||||
public SynchronouslyLoadedUserBinaryDictionary(final Context context, final Locale locale,
|
||||
final boolean alsoUseMoreRestrictiveLocales) {
|
||||
super(context, locale, alsoUseMoreRestrictiveLocales, null /* dictFile */, NAME);
|
||||
}
|
||||
|
||||
@Override
|
||||
public ArrayList<SuggestedWordInfo> getSuggestions(final WordComposer codes,
|
||||
final PrevWordsInfo prevWordsInfo, final ProximityInfo proximityInfo,
|
||||
final SettingsValuesForSuggestion settingsValuesForSuggestion,
|
||||
final int sessionId, final float[] inOutLanguageWeight) {
|
||||
synchronized (mLock) {
|
||||
return super.getSuggestions(codes, prevWordsInfo, proximityInfo,
|
||||
settingsValuesForSuggestion, sessionId, inOutLanguageWeight);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean isInDictionary(final String word) {
|
||||
synchronized (mLock) {
|
||||
return super.isInDictionary(word);
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue