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/*
* Copyright (C) 2019 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.net;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.os.Bundle;
import android.os.Parcel;
import android.os.Parcelable;
import java.util.Objects;
/**
* Object representing the quality of a network as perceived by the user.
*
* A NetworkScore object represents the characteristics of a network that affects how good the
* network is considered for a particular use.
* @hide
*/
public final class NetworkScore implements Parcelable {
// The key of bundle which is used to get the legacy network score of NetworkAgentInfo.
// TODO: Remove this when the transition to NetworkScore is over.
public static final String LEGACY_SCORE = "LEGACY_SCORE";
@NonNull
private final Bundle mExtensions;
public NetworkScore() {
mExtensions = new Bundle();
}
public NetworkScore(@NonNull NetworkScore source) {
mExtensions = new Bundle(source.mExtensions);
}
/**
* Put the value of parcelable inside the bundle by key.
*/
public void putExtension(@Nullable String key, @Nullable Parcelable value) {
mExtensions.putParcelable(key, value);
}
/**
* Put the value of int inside the bundle by key.
*/
public void putIntExtension(@Nullable String key, int value) {
mExtensions.putInt(key, value);
}
/**
* Get the value of non primitive type by key.
*/
public <T extends Parcelable> T getExtension(@Nullable String key) {
return mExtensions.getParcelable(key);
}
/**
* Get the value of int by key.
*/
public int getIntExtension(@Nullable String key) {
return mExtensions.getInt(key);
}
/**
* Remove the entry by given key.
*/
public void removeExtension(@Nullable String key) {
mExtensions.remove(key);
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(@NonNull Parcel dest, int flags) {
synchronized (this) {
dest.writeBundle(mExtensions);
}
}
public static final @NonNull Creator<NetworkScore> CREATOR = new Creator<NetworkScore>() {
@Override
public NetworkScore createFromParcel(@NonNull Parcel in) {
return new NetworkScore(in);
}
@Override
public NetworkScore[] newArray(int size) {
return new NetworkScore[size];
}
};
private NetworkScore(@NonNull Parcel in) {
mExtensions = in.readBundle();
}
// TODO: Modify this method once new fields are added into this class.
@Override
public boolean equals(@Nullable Object obj) {
if (!(obj instanceof NetworkScore)) {
return false;
}
final NetworkScore other = (NetworkScore) obj;
return bundlesEqual(mExtensions, other.mExtensions);
}
@Override
public int hashCode() {
int result = 29;
for (String key : mExtensions.keySet()) {
final Object value = mExtensions.get(key);
// The key may be null, so call Objects.hash() is safer.
result += 31 * value.hashCode() + 37 * Objects.hash(key);
}
return result;
}
// mExtensions won't be null since the constructor will create it.
private boolean bundlesEqual(@NonNull Bundle bundle1, @NonNull Bundle bundle2) {
if (bundle1 == bundle2) {
return true;
}
// This is unlikely but it's fine to add this clause here.
if (null == bundle1 || null == bundle2) {
return false;
}
if (bundle1.size() != bundle2.size()) {
return false;
}
for (String key : bundle1.keySet()) {
final Object value1 = bundle1.get(key);
final Object value2 = bundle2.get(key);
if (!Objects.equals(value1, value2)) {
return false;
}
}
return true;
}
}
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