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/*
* 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;
import com.android.inputmethod.latin.common.Constants;
import com.android.inputmethod.latin.common.NativeSuggestOptions;
import com.android.inputmethod.latin.utils.JniUtils;
import java.util.Locale;
public final class DicTraverseSession {
static {
JniUtils.loadNativeLibrary();
}
// Must be equal to MAX_RESULTS in native/jni/src/defines.h
private static final int MAX_RESULTS = 18;
public final int[] mInputCodePoints = new int[Constants.DICTIONARY_MAX_WORD_LENGTH];
public final int[][] mPrevWordCodePointArrays =
new int[Constants.MAX_PREV_WORD_COUNT_FOR_N_GRAM][];
public final boolean[] mIsBeginningOfSentenceArray =
new boolean[Constants.MAX_PREV_WORD_COUNT_FOR_N_GRAM];
public final int[] mOutputSuggestionCount = new int[1];
public final int[] mOutputCodePoints =
new int[Constants.DICTIONARY_MAX_WORD_LENGTH * MAX_RESULTS];
public final int[] mSpaceIndices = new int[MAX_RESULTS];
public final int[] mOutputScores = new int[MAX_RESULTS];
public final int[] mOutputTypes = new int[MAX_RESULTS];
// Only one result is ever used
public final int[] mOutputAutoCommitFirstWordConfidence = new int[1];
public final float[] mInputOutputWeightOfLangModelVsSpatialModel = new float[1];
public final NativeSuggestOptions mNativeSuggestOptions = new NativeSuggestOptions();
private static native long setDicTraverseSessionNative(String locale, long dictSize);
private static native void initDicTraverseSessionNative(long nativeDicTraverseSession,
long dictionary, int[] previousWord, int previousWordLength);
private static native void releaseDicTraverseSessionNative(long nativeDicTraverseSession);
private long mNativeDicTraverseSession;
public DicTraverseSession(Locale locale, long dictionary, long dictSize) {
mNativeDicTraverseSession = createNativeDicTraverseSession(
locale != null ? locale.toString() : "", dictSize);
initSession(dictionary);
}
public long getSession() {
return mNativeDicTraverseSession;
}
public void initSession(long dictionary) {
initSession(dictionary, null, 0);
}
public void initSession(long dictionary, int[] previousWord, int previousWordLength) {
initDicTraverseSessionNative(
mNativeDicTraverseSession, dictionary, previousWord, previousWordLength);
}
private static long createNativeDicTraverseSession(String locale, long dictSize) {
return setDicTraverseSessionNative(locale, dictSize);
}
private void closeInternal() {
if (mNativeDicTraverseSession != 0) {
releaseDicTraverseSessionNative(mNativeDicTraverseSession);
mNativeDicTraverseSession = 0;
}
}
public void close() {
closeInternal();
}
@Override
protected void finalize() throws Throwable {
try {
closeInternal();
} finally {
super.finalize();
}
}
}
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