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/*
* Copyright (C) 2014 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.makedict;
import com.android.inputmethod.annotations.UsedForTesting;
import com.android.inputmethod.latin.BinaryDictionary;
import com.android.inputmethod.latin.utils.CombinedFormatUtils;
import java.util.Arrays;
public final class ProbabilityInfo {
public final int mProbability;
// mTimestamp, mLevel and mCount are historical info. These values are depend on the
// implementation in native code; thus, we must not use them and have any assumptions about
// them except for tests.
public final int mTimestamp;
public final int mLevel;
public final int mCount;
@UsedForTesting
public static ProbabilityInfo max(final ProbabilityInfo probabilityInfo1,
final ProbabilityInfo probabilityInfo2) {
if (probabilityInfo1 == null) {
return probabilityInfo2;
}
if (probabilityInfo2 == null) {
return probabilityInfo1;
}
return (probabilityInfo1.mProbability > probabilityInfo2.mProbability) ? probabilityInfo1
: probabilityInfo2;
}
public ProbabilityInfo(final int probability) {
this(probability, BinaryDictionary.NOT_A_VALID_TIMESTAMP, 0, 0);
}
public ProbabilityInfo(final int probability, final int timestamp, final int level,
final int count) {
mProbability = probability;
mTimestamp = timestamp;
mLevel = level;
mCount = count;
}
public boolean hasHistoricalInfo() {
return mTimestamp != BinaryDictionary.NOT_A_VALID_TIMESTAMP;
}
@Override
public int hashCode() {
if (hasHistoricalInfo()) {
return Arrays.hashCode(new Object[] { mProbability, mTimestamp, mLevel, mCount });
}
return Arrays.hashCode(new Object[] { mProbability });
}
@Override
public String toString() {
return CombinedFormatUtils.formatProbabilityInfo(this);
}
@Override
public boolean equals(Object o) {
if (o == this) return true;
if (!(o instanceof ProbabilityInfo)) return false;
final ProbabilityInfo p = (ProbabilityInfo)o;
if (!hasHistoricalInfo() && !p.hasHistoricalInfo()) {
return mProbability == p.mProbability;
}
return mProbability == p.mProbability && mTimestamp == p.mTimestamp && mLevel == p.mLevel
&& mCount == p.mCount;
}
}
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