86 lines
3.5 KiB
Java
86 lines
3.5 KiB
Java
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.latin.utils;
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import com.android.inputmethod.annotations.UsedForTesting;
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import com.android.inputmethod.latin.personalization.PersonalizationHelper;
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import java.util.Locale;
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import java.util.Map;
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public final class BinaryDictionaryUtils {
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private static final String TAG = BinaryDictionaryUtils.class.getSimpleName();
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private BinaryDictionaryUtils() {
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// This utility class is not publicly instantiable.
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}
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static {
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JniUtils.loadNativeLibrary();
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}
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private static native boolean createEmptyDictFileNative(String filePath, long dictVersion,
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String locale, String[] attributeKeyStringArray, String[] attributeValueStringArray);
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private static native float calcNormalizedScoreNative(int[] before, int[] after, int score);
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private static native int editDistanceNative(int[] before, int[] after);
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private static native int setCurrentTimeForTestNative(int currentTime);
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public static boolean createEmptyDictFile(final String filePath, final long dictVersion,
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final Locale locale, final Map<String, String> attributeMap) {
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final String[] keyArray = new String[attributeMap.size()];
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final String[] valueArray = new String[attributeMap.size()];
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int index = 0;
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for (final String key : attributeMap.keySet()) {
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keyArray[index] = key;
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valueArray[index] = attributeMap.get(key);
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index++;
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}
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return createEmptyDictFileNative(filePath, dictVersion, locale.toString(), keyArray,
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valueArray);
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}
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public static float calcNormalizedScore(final String before, final String after,
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final int score) {
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return calcNormalizedScoreNative(StringUtils.toCodePointArray(before),
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StringUtils.toCodePointArray(after), score);
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}
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public static int editDistance(final String before, final String after) {
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if (before == null || after == null) {
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throw new IllegalArgumentException();
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}
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return editDistanceNative(StringUtils.toCodePointArray(before),
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StringUtils.toCodePointArray(after));
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}
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/**
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* Control the current time to be used in the native code. If currentTime >= 0, this method sets
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* the current time and gets into test mode.
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* In test mode, set timestamp is used as the current time in the native code.
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* If currentTime < 0, quit the test mode and returns to using time() to get the current time.
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*
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* @param currentTime seconds since the unix epoch
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* @return current time got in the native code.
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*/
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@UsedForTesting
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public static int setCurrentTimeForTest(final int currentTime) {
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final int currentNativeTimestamp = setCurrentTimeForTestNative(currentTime);
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PersonalizationHelper.currentTimeChangedForTesting(currentNativeTimestamp);
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return currentNativeTimestamp;
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}
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}
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