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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.app.usage;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.SystemApi;
import android.os.Parcel;
import android.os.Parcelable;
import com.android.internal.util.Preconditions;
import java.util.Objects;
/**
* CacheQuotaHint represents a triplet of a uid, the volume UUID it is stored upon, and
* its usage stats. When processed, it obtains a cache quota as defined by the system which
* allows apps to understand how much cache to use.
* {@hide}
*/
@SystemApi
public final class CacheQuotaHint implements Parcelable {
public static final long QUOTA_NOT_SET = -1;
private final String mUuid;
private final int mUid;
private final UsageStats mUsageStats;
private final long mQuota;
/**
* Create a new request.
* @param builder A builder for this object.
*/
public CacheQuotaHint(Builder builder) {
this.mUuid = builder.mUuid;
this.mUid = builder.mUid;
this.mUsageStats = builder.mUsageStats;
this.mQuota = builder.mQuota;
}
public String getVolumeUuid() {
return mUuid;
}
public int getUid() {
return mUid;
}
public long getQuota() {
return mQuota;
}
public UsageStats getUsageStats() {
return mUsageStats;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(mUuid);
dest.writeInt(mUid);
dest.writeLong(mQuota);
dest.writeParcelable(mUsageStats, 0);
}
@Override
public int describeContents() {
return 0;
}
@Override
public boolean equals(Object o) {
if (o instanceof CacheQuotaHint) {
final CacheQuotaHint other = (CacheQuotaHint) o;
return Objects.equals(mUuid, other.mUuid)
&& Objects.equals(mUsageStats, other.mUsageStats)
&& mUid == other.mUid && mQuota == other.mQuota;
}
return false;
}
@Override
public int hashCode() {
return Objects.hash(this.mUuid, this.mUid, this.mUsageStats, this.mQuota);
}
public static final class Builder {
private String mUuid;
private int mUid;
private UsageStats mUsageStats;
private long mQuota;
public Builder() {
}
public Builder(CacheQuotaHint hint) {
setVolumeUuid(hint.getVolumeUuid());
setUid(hint.getUid());
setUsageStats(hint.getUsageStats());
setQuota(hint.getQuota());
}
public @NonNull Builder setVolumeUuid(@Nullable String uuid) {
mUuid = uuid;
return this;
}
public @NonNull Builder setUid(int uid) {
Preconditions.checkArgumentNonnegative(uid, "Proposed uid was negative.");
mUid = uid;
return this;
}
public @NonNull Builder setUsageStats(@Nullable UsageStats stats) {
mUsageStats = stats;
return this;
}
public @NonNull Builder setQuota(long quota) {
Preconditions.checkArgument((quota >= QUOTA_NOT_SET));
mQuota = quota;
return this;
}
public @NonNull CacheQuotaHint build() {
return new CacheQuotaHint(this);
}
}
public static final @android.annotation.NonNull Parcelable.Creator<CacheQuotaHint> CREATOR =
new Creator<CacheQuotaHint>() {
@Override
public CacheQuotaHint createFromParcel(Parcel in) {
final Builder builder = new Builder();
return builder.setVolumeUuid(in.readString())
.setUid(in.readInt())
.setQuota(in.readLong())
.setUsageStats(in.readParcelable(UsageStats.class.getClassLoader()))
.build();
}
@Override
public CacheQuotaHint[] newArray(int size) {
return new CacheQuotaHint[size];
}
};
}
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