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authorKeisuke Kuroyanagi <ksk@google.com>2014-07-10 12:51:37 +0900
committerKeisuke Kuroyanagi <ksk@google.com>2014-07-10 12:51:37 +0900
commit9e76304d6004c43c3149bc2df460af2a00b18a4f (patch)
treea91f7d507a59eb71328ae38d3037e917177635eb /java/src/com/android/inputmethod/latin/spellcheck/DictionaryPool.java
parent3b8f2ece4073017b8fd16371b95e6200ec7803ee (diff)
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Make spell checker use dictionary facilitator.
Bug: 13630847 Change-Id: I07d17ccf5ce0755f63a0b8d236d77600baaf62b6
Diffstat (limited to 'java/src/com/android/inputmethod/latin/spellcheck/DictionaryPool.java')
-rw-r--r--java/src/com/android/inputmethod/latin/spellcheck/DictionaryPool.java137
1 files changed, 0 insertions, 137 deletions
diff --git a/java/src/com/android/inputmethod/latin/spellcheck/DictionaryPool.java b/java/src/com/android/inputmethod/latin/spellcheck/DictionaryPool.java
deleted file mode 100644
index eb85d4969..000000000
--- a/java/src/com/android/inputmethod/latin/spellcheck/DictionaryPool.java
+++ /dev/null
@@ -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);
- }
- }
-}