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/*
* Copyright (C) 2017 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.car.storagemonitoring;
import android.annotation.NonNull;
import android.annotation.SystemApi;
import android.os.Parcel;
import android.os.Parcelable;
import java.time.Instant;
import java.util.Objects;
import static java.util.Objects.requireNonNull;
/**
* Change in wear-out information.
*
* Contains information about the first cycle during which the system detected a change
* in wear-out information of the flash storage.
*
* @hide
*/
@SystemApi
public class WearEstimateChange implements Parcelable {
public static final Parcelable.Creator<WearEstimateChange> CREATOR =
new Parcelable.Creator<WearEstimateChange>() {
public WearEstimateChange createFromParcel(Parcel in) {
return new WearEstimateChange(in);
}
public WearEstimateChange[] newArray(int size) {
return new WearEstimateChange[size];
}
};
/**
* The previous wear estimate.
*/
public final @NonNull WearEstimate oldEstimate;
/**
* The new wear estimate.
*/
public final @NonNull WearEstimate newEstimate;
/**
* Total CarService uptime when this change was detected.
*/
public final long uptimeAtChange;
/**
* Wall-clock time when this change was detected.
*/
public final @NonNull Instant dateAtChange;
/**
* Whether this change was within the vendor range for acceptable flash degradation.
*/
public final boolean isAcceptableDegradation;
public WearEstimateChange(WearEstimate oldEstimate,
WearEstimate newEstimate,
long uptimeAtChange,
Instant dateAtChange,
boolean isAcceptableDegradation) {
if (uptimeAtChange < 0) {
throw new IllegalArgumentException("uptimeAtChange must be >= 0");
}
this.oldEstimate = requireNonNull(oldEstimate);
this.newEstimate = requireNonNull(newEstimate);
this.uptimeAtChange = uptimeAtChange;
this.dateAtChange = requireNonNull(dateAtChange);
this.isAcceptableDegradation = isAcceptableDegradation;
}
public WearEstimateChange(Parcel in) {
oldEstimate = in.readParcelable(WearEstimate.class.getClassLoader());
newEstimate = in.readParcelable(WearEstimate.class.getClassLoader());
uptimeAtChange = in.readLong();
dateAtChange = Instant.ofEpochMilli(in.readLong());
isAcceptableDegradation = in.readInt() == 1;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeParcelable(oldEstimate, flags);
dest.writeParcelable(newEstimate, flags);
dest.writeLong(uptimeAtChange);
dest.writeLong(dateAtChange.toEpochMilli());
dest.writeInt(isAcceptableDegradation ? 1 : 0);
}
@Override
public boolean equals(Object other) {
if (other instanceof WearEstimateChange) {
WearEstimateChange wo = (WearEstimateChange)other;
return wo.isAcceptableDegradation == isAcceptableDegradation &&
wo.uptimeAtChange == uptimeAtChange &&
wo.dateAtChange.equals(dateAtChange) &&
wo.oldEstimate.equals(oldEstimate) &&
wo.newEstimate.equals(newEstimate);
}
return false;
}
@Override
public int hashCode() {
return Objects.hash(oldEstimate,
newEstimate,
uptimeAtChange,
dateAtChange,
isAcceptableDegradation);
}
@Override
public String toString() {
return String.format(
"wear change{old level=%s, new level=%s, uptime=%d, date=%s, acceptable=%s}",
oldEstimate,
newEstimate,
uptimeAtChange,
dateAtChange,
isAcceptableDegradation ? "yes" : "no");
}
}
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