1 files changed, 0 insertions, 190 deletions
diff --git a/java/src/com/android/inputmethod/latin/personalization/DynamicPersonalizationDictionaryWriter.java b/java/src/com/android/inputmethod/latin/personalization/DynamicPersonalizationDictionaryWriter.java
deleted file mode 100644
index 6f152bb91..000000000
--- a/java/src/com/android/inputmethod/latin/personalization/DynamicPersonalizationDictionaryWriter.java
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
- * Copyright (C) 2013 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.personalization;
-
-import android.content.Context;
-
-import com.android.inputmethod.annotations.UsedForTesting;
-import com.android.inputmethod.compat.ActivityManagerCompatUtils;
-import com.android.inputmethod.keyboard.ProximityInfo;
-import com.android.inputmethod.latin.AbstractDictionaryWriter;
-import com.android.inputmethod.latin.ExpandableDictionary;
-import com.android.inputmethod.latin.WordComposer;
-import com.android.inputmethod.latin.ExpandableDictionary.NextWord;
-import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
-import com.android.inputmethod.latin.makedict.DictEncoder;
-import com.android.inputmethod.latin.makedict.FormatSpec;
-import com.android.inputmethod.latin.makedict.UnsupportedFormatException;
-import com.android.inputmethod.latin.utils.UserHistoryDictIOUtils;
-import com.android.inputmethod.latin.utils.UserHistoryDictIOUtils.BigramDictionaryInterface;
-import com.android.inputmethod.latin.utils.UserHistoryForgettingCurveUtils;
-import com.android.inputmethod.latin.utils.UserHistoryForgettingCurveUtils.ForgettingCurveParams;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Map;
-
-// Currently this class is used to implement dynamic prodiction dictionary.
-// TODO: Move to native code.
-public class DynamicPersonalizationDictionaryWriter extends AbstractDictionaryWriter {
-    private static final String TAG = DynamicPersonalizationDictionaryWriter.class.getSimpleName();
-    /** Maximum number of pairs. Pruning will start when databases goes above this number. */
-    public static final int DEFAULT_MAX_HISTORY_BIGRAMS = 10000;
-    public static final int LOW_MEMORY_MAX_HISTORY_BIGRAMS = 2000;
-
-    /** Any pair being typed or picked */
-    private static final int FREQUENCY_FOR_TYPED = 2;
-
-    private static final int BINARY_DICT_VERSION = 3;
-    private static final FormatSpec.FormatOptions FORMAT_OPTIONS =
-            new FormatSpec.FormatOptions(BINARY_DICT_VERSION, true /* supportsDynamicUpdate */);
-
-    private final UserHistoryDictionaryBigramList mBigramList =
-            new UserHistoryDictionaryBigramList();
-    private final ExpandableDictionary mExpandableDictionary;
-    private final int mMaxHistoryBigrams;
-
-    public DynamicPersonalizationDictionaryWriter(final Context context, final String dictType) {
-        super(context, dictType);
-        mExpandableDictionary = new ExpandableDictionary(dictType);
-        final boolean isLowRamDevice = ActivityManagerCompatUtils.isLowRamDevice(context);
-        mMaxHistoryBigrams = isLowRamDevice ?
-                LOW_MEMORY_MAX_HISTORY_BIGRAMS : DEFAULT_MAX_HISTORY_BIGRAMS;
-    }
-
-    @Override
-    public void clear() {
-        mBigramList.evictAll();
-        mExpandableDictionary.clearDictionary();
-    }
-
-    /**
-     * Adds a word unigram to the fusion dictionary. Call updateBinaryDictionary when all changes
-     * are done to update the binary dictionary.
-     * @param word The word to add.
-     * @param shortcutTarget A shortcut target for this word, or null if none.
-     * @param frequency The frequency for this unigram.
-     * @param shortcutFreq The frequency of the shortcut (0~15, with 15 = whitelist). Ignored
-     *   if shortcutTarget is null.
-     * @param isNotAWord true if this is not a word, i.e. shortcut only.
-     */
-    @Override
-    public void addUnigramWord(final String word, final String shortcutTarget, final int frequency,
-            final int shortcutFreq, final boolean isNotAWord) {
-        if (mBigramList.size() > mMaxHistoryBigrams * 2) {
-            // Too many entries: just stop adding new vocabulary and wait next refresh.
-            return;
-        }
-        mExpandableDictionary.addWord(word, shortcutTarget, frequency, shortcutFreq);
-        mBigramList.addBigram(null, word, (byte)frequency);
-    }
-
-    @Override
-    public void addBigramWords(final String word0, final String word1, final int frequency,
-            final boolean isValid, final long lastModifiedTime) {
-        if (mBigramList.size() > mMaxHistoryBigrams * 2) {
-            // Too many entries: just stop adding new vocabulary and wait next refresh.
-            return;
-        }
-        if (lastModifiedTime > 0) {
-            mExpandableDictionary.setBigramAndGetFrequency(word0, word1,
-                    new ForgettingCurveParams(frequency, System.currentTimeMillis(),
-                            lastModifiedTime));
-            mBigramList.addBigram(word0, word1, (byte)frequency);
-        } else {
-            mExpandableDictionary.setBigramAndGetFrequency(word0, word1,
-                    new ForgettingCurveParams(isValid));
-            mBigramList.addBigram(word0, word1, (byte)frequency);
-        }
-    }
-
-    @Override
-    public void removeBigramWords(final String word0, final String word1) {
-        if (mBigramList.removeBigram(word0, word1)) {
-            mExpandableDictionary.removeBigram(word0, word1);
-        }
-    }
-
-    @Override
-    protected void writeDictionary(final DictEncoder dictEncoder,
-            final Map<String, String> attributeMap) throws IOException, UnsupportedFormatException {
-        UserHistoryDictIOUtils.writeDictionary(dictEncoder,
-                new FrequencyProvider(mBigramList, mExpandableDictionary, mMaxHistoryBigrams),
-                mBigramList, FORMAT_OPTIONS);
-    }
-
-    private static class FrequencyProvider implements BigramDictionaryInterface {
-        private final UserHistoryDictionaryBigramList mBigramList;
-        private final ExpandableDictionary mExpandableDictionary;
-        private final int mMaxHistoryBigrams;
-
-        public FrequencyProvider(final UserHistoryDictionaryBigramList bigramList,
-                final ExpandableDictionary expandableDictionary, final int maxHistoryBigrams) {
-            mBigramList = bigramList;
-            mExpandableDictionary = expandableDictionary;
-            mMaxHistoryBigrams = maxHistoryBigrams;
-        }
-
-        @Override
-        public int getFrequency(final String word0, final String word1) {
-            final int freq;
-            if (word0 == null) { // unigram
-                freq = FREQUENCY_FOR_TYPED;
-            } else { // bigram
-                final NextWord nw = mExpandableDictionary.getBigramWord(word0, word1);
-                if (nw != null) {
-                    final ForgettingCurveParams forgettingCurveParams = nw.getFcParams();
-                    final byte prevFc = mBigramList.getBigrams(word0).get(word1);
-                    final byte fc = forgettingCurveParams.getFc();
-                    final boolean isValid = forgettingCurveParams.isValid();
-                    if (prevFc > 0 && prevFc == fc) {
-                        freq = fc & 0xFF;
-                    } else if (UserHistoryForgettingCurveUtils.
-                            needsToSave(fc, isValid, mBigramList.size() <= mMaxHistoryBigrams)) {
-                        freq = fc & 0xFF;
-                    } else {
-                        // Delete this entry
-                        freq = -1;
-                    }
-                } else {
-                    // Delete this entry
-                    freq = -1;
-                }
-            }
-            return freq;
-        }
-    }
-
-    @Override
-    public ArrayList<SuggestedWordInfo> getSuggestions(final WordComposer composer,
-            final String prevWord, final ProximityInfo proximityInfo,
-            boolean blockOffensiveWords, final int[] additionalFeaturesOptions) {
-        return mExpandableDictionary.getSuggestions(composer, prevWord, proximityInfo,
-                blockOffensiveWords, additionalFeaturesOptions);
-    }
-
-    @Override
-    public boolean isValidWord(final String word) {
-        return mExpandableDictionary.isValidWord(word);
-    }
-
-    @UsedForTesting
-    public boolean isInBigramListForTests(final String word) {
-        // TODO: Use native method to determine whether the word is in dictionary or not
-        return mBigramList.containsKey(word) || mBigramList.getBigrams(null).containsKey(word);
-    }
-}