100 lines
3.3 KiB
Java
100 lines
3.3 KiB
Java
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package com.android.inputmethod.latin;
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import android.content.Context;
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import android.text.TextUtils;
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import android.util.Log;
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import android.util.Pair;
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import java.util.HashMap;
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public class WhitelistDictionary extends Dictionary {
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private static final boolean DBG = LatinImeLogger.sDBG;
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private static final String TAG = WhitelistDictionary.class.getSimpleName();
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private final HashMap<String, Pair<Integer, String>> mWhitelistWords =
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new HashMap<String, Pair<Integer, String>>();
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private static final WhitelistDictionary sInstance = new WhitelistDictionary();
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private WhitelistDictionary() {
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}
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public static WhitelistDictionary init(Context context) {
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synchronized (sInstance) {
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if (context != null) {
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sInstance.initWordlist(
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context.getResources().getStringArray(R.array.wordlist_whitelist));
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} else {
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sInstance.mWhitelistWords.clear();
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}
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}
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return sInstance;
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}
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private void initWordlist(String[] wordlist) {
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mWhitelistWords.clear();
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final int N = wordlist.length;
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if (N % 3 != 0) {
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if (DBG) {
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Log.d(TAG, "The number of the whitelist is invalid.");
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}
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return;
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}
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try {
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for (int i = 0; i < N; i += 3) {
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final int score = Integer.valueOf(wordlist[i]);
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final String before = wordlist[i + 1];
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final String after = wordlist[i + 2];
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if (before != null && after != null) {
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mWhitelistWords.put(
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before.toLowerCase(), new Pair<Integer, String>(score, after));
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}
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}
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} catch (NumberFormatException e) {
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if (DBG) {
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Log.d(TAG, "The score of the word is invalid.");
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}
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}
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}
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public String getWhiteListedWord(String before) {
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if (before == null) return null;
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final String lowerCaseBefore = before.toLowerCase();
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if(mWhitelistWords.containsKey(lowerCaseBefore)) {
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if (DBG) {
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Log.d(TAG, "--- found whiteListedWord: " + lowerCaseBefore);
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}
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return mWhitelistWords.get(lowerCaseBefore).second;
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}
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return null;
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}
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// Not used for WhitelistDictionary. We use getWhitelistedWord() in Suggest.java instead
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@Override
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public void getWords(WordComposer composer, WordCallback callback) {
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}
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@Override
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public boolean isValidWord(CharSequence word) {
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if (TextUtils.isEmpty(word)) return false;
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return !TextUtils.isEmpty(getWhiteListedWord(word.toString()));
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}
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}
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