1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 17 package android.net; 18 19 import android.annotation.SystemApi; 20 import android.os.Parcel; 21 import android.os.Parcelable; 22 23 import java.util.Objects; 24 25 /** 26 * A network identifier along with a score for the quality of that network. 27 * 28 * @hide 29 */ 30 @SystemApi 31 public class ScoredNetwork implements Parcelable { 32 33 /** A {@link NetworkKey} uniquely identifying this network. */ 34 public final NetworkKey networkKey; 35 36 /** 37 * The {@link RssiCurve} representing the scores for this network based on the RSSI. 38 * 39 * <p>This field is optional and may be set to null to indicate that no score is available for 40 * this network at this time. Such networks, along with networks for which the scorer has not 41 * responded, are always prioritized below scored networks, regardless of the score. 42 */ 43 public final RssiCurve rssiCurve; 44 45 /** 46 * A boolean value that indicates whether or not the network is believed to be metered. 47 * 48 * <p>A network can be classified as metered if the user would be 49 * sensitive to heavy data usage on that connection due to monetary costs, 50 * data limitations or battery/performance issues. A typical example would 51 * be a wifi connection where the user would be charged for usage. 52 */ 53 public final boolean meteredHint; 54 55 /** 56 * Construct a new {@link ScoredNetwork}. 57 * 58 * @param networkKey the {@link NetworkKey} uniquely identifying this network. 59 * @param rssiCurve the {@link RssiCurve} representing the scores for this network based on the 60 * RSSI. This field is optional, and may be skipped to represent a network which the scorer 61 * has opted not to score at this time. Passing a null value here is strongly preferred to 62 * not returning any {@link ScoredNetwork} for a given {@link NetworkKey} because it 63 * indicates to the system not to request scores for this network in the future, although 64 * the scorer may choose to issue an out-of-band update at any time. 65 */ 66 public ScoredNetwork(NetworkKey networkKey, RssiCurve rssiCurve) { 67 this(networkKey, rssiCurve, false /* meteredHint */); 68 } 69 70 /** 71 * Construct a new {@link ScoredNetwork}. 72 * 73 * @param networkKey the {@link NetworkKey} uniquely identifying this network. 74 * @param rssiCurve the {@link RssiCurve} representing the scores for this network based on the 75 * RSSI. This field is optional, and may be skipped to represent a network which the scorer 76 * has opted not to score at this time. Passing a null value here is strongly preferred to 77 * not returning any {@link ScoredNetwork} for a given {@link NetworkKey} because it 78 * indicates to the system not to request scores for this network in the future, although 79 * the scorer may choose to issue an out-of-band update at any time. 80 * @param meteredHint A boolean value indicating whether or not the network is believed to be 81 * metered. 82 */ 83 public ScoredNetwork(NetworkKey networkKey, RssiCurve rssiCurve, boolean meteredHint) { 84 this.networkKey = networkKey; 85 this.rssiCurve = rssiCurve; 86 this.meteredHint = meteredHint; 87 } 88 89 private ScoredNetwork(Parcel in) { 90 networkKey = NetworkKey.CREATOR.createFromParcel(in); 91 if (in.readByte() == 1) { 92 rssiCurve = RssiCurve.CREATOR.createFromParcel(in); 93 } else { 94 rssiCurve = null; 95 } 96 meteredHint = in.readByte() != 0; 97 } 98 99 @Override 100 public int describeContents() { 101 return 0; 102 } 103 104 @Override 105 public void writeToParcel(Parcel out, int flags) { 106 networkKey.writeToParcel(out, flags); 107 if (rssiCurve != null) { 108 out.writeByte((byte) 1); 109 rssiCurve.writeToParcel(out, flags); 110 } else { 111 out.writeByte((byte) 0); 112 } 113 out.writeByte((byte) (meteredHint ? 1 : 0)); 114 } 115 116 @Override 117 public boolean equals(Object o) { 118 if (this == o) return true; 119 if (o == null || getClass() != o.getClass()) return false; 120 121 ScoredNetwork that = (ScoredNetwork) o; 122 123 return Objects.equals(networkKey, that.networkKey) 124 && Objects.equals(rssiCurve, that.rssiCurve) 125 && Objects.equals(meteredHint, that.meteredHint); 126 } 127 128 @Override 129 public int hashCode() { 130 return Objects.hash(networkKey, rssiCurve, meteredHint); 131 } 132 133 @Override 134 public String toString() { 135 return "ScoredNetwork[key=" + networkKey + ",score=" + rssiCurve 136 + ",meteredHint=" + meteredHint + "]"; 137 } 138 139 public static final Parcelable.Creator<ScoredNetwork> CREATOR = 140 new Parcelable.Creator<ScoredNetwork>() { 141 @Override 142 public ScoredNetwork createFromParcel(Parcel in) { 143 return new ScoredNetwork(in); 144 } 145 146 @Override 147 public ScoredNetwork[] newArray(int size) { 148 return new ScoredNetwork[size]; 149 } 150 }; 151 } 152