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/*
* Copyright (C) 2016 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 android.os.health;
import android.annotation.TestApi;
import android.compat.annotation.UnsupportedAppUsage;
import android.os.Build;
import android.os.Parcel;
import android.os.Parcelable;
/**
* Class to allow sending the HealthStats through aidl generated glue.
*
* The alternative would be to send a HealthStats object, which would
* require constructing one, and then immediately flattening it. This
* saves that step at the cost of doing the extra flattening when
* accessed in the same process as the writer.
*
* The HealthStatsWriter passed in the constructor is retained, so don't
* reuse them.
* @hide
*/
@TestApi
public class HealthStatsParceler implements Parcelable {
private HealthStatsWriter mWriter;
private HealthStats mHealthStats;
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
public static final @android.annotation.NonNull Parcelable.Creator<HealthStatsParceler> CREATOR
= new Parcelable.Creator<HealthStatsParceler>() {
public HealthStatsParceler createFromParcel(Parcel in) {
return new HealthStatsParceler(in);
}
public HealthStatsParceler[] newArray(int size) {
return new HealthStatsParceler[size];
}
};
public HealthStatsParceler(HealthStatsWriter writer) {
mWriter = writer;
}
public HealthStatsParceler(Parcel in) {
mHealthStats = new HealthStats(in);
}
public int describeContents() {
return 0;
}
public void writeToParcel(Parcel out, int flags) {
// See comment on mWriter declaration above.
if (mWriter != null) {
mWriter.flattenToParcel(out);
} else {
throw new RuntimeException("Can not re-parcel HealthStatsParceler that was"
+ " constructed from a Parcel");
}
}
public HealthStats getHealthStats() {
if (mWriter != null) {
final Parcel parcel = Parcel.obtain();
mWriter.flattenToParcel(parcel);
parcel.setDataPosition(0);
mHealthStats = new HealthStats(parcel);
parcel.recycle();
}
return mHealthStats;
}
}
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