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 static android.os.UserHandle.PER_USER_RANGE; 20 21 import android.os.Parcel; 22 import android.os.Parcelable; 23 24 import java.lang.IllegalArgumentException; 25 26 /** 27 * An inclusive range of UIDs. 28 * 29 * @hide 30 */ 31 public final class UidRange implements Parcelable { 32 public final int start; 33 public final int stop; 34 35 public UidRange(int startUid, int stopUid) { 36 if (startUid < 0) throw new IllegalArgumentException("Invalid start UID."); 37 if (stopUid < 0) throw new IllegalArgumentException("Invalid stop UID."); 38 if (startUid > stopUid) throw new IllegalArgumentException("Invalid UID range."); 39 start = startUid; 40 stop = stopUid; 41 } 42 43 public static UidRange createForUser(int userId) { 44 return new UidRange(userId * PER_USER_RANGE, (userId + 1) * PER_USER_RANGE - 1); 45 } 46 47 public int getStartUser() { 48 return start / PER_USER_RANGE; 49 } 50 51 @Override 52 public int hashCode() { 53 int result = 17; 54 result = 31 * result + start; 55 result = 31 * result + stop; 56 return result; 57 } 58 59 @Override 60 public boolean equals(Object o) { 61 if (this == o) { 62 return true; 63 } 64 if (o instanceof UidRange) { 65 UidRange other = (UidRange) o; 66 return start == other.start && stop == other.stop; 67 } 68 return false; 69 } 70 71 @Override 72 public String toString() { 73 return start + "-" + stop; 74 } 75 76 // implement the Parcelable interface 77 @Override 78 public int describeContents() { 79 return 0; 80 } 81 82 @Override 83 public void writeToParcel(Parcel dest, int flags) { 84 dest.writeInt(start); 85 dest.writeInt(stop); 86 } 87 88 public static final Creator<UidRange> CREATOR = 89 new Creator<UidRange>() { 90 @Override 91 public UidRange createFromParcel(Parcel in) { 92 int start = in.readInt(); 93 int stop = in.readInt(); 94 95 return new UidRange(start, stop); 96 } 97 @Override 98 public UidRange[] newArray(int size) { 99 return new UidRange[size]; 100 } 101 }; 102 } 103
