| /* |
| * Copyright (C) 2014 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 static android.os.UserHandle.PER_USER_RANGE; |
| |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| |
| /** |
| * An inclusive range of UIDs. |
| * |
| * @hide |
| */ |
| public final class UidRange implements Parcelable { |
| public final int start; |
| public final int stop; |
| |
| public UidRange(int startUid, int stopUid) { |
| if (startUid < 0) throw new IllegalArgumentException("Invalid start UID."); |
| if (stopUid < 0) throw new IllegalArgumentException("Invalid stop UID."); |
| if (startUid > stopUid) throw new IllegalArgumentException("Invalid UID range."); |
| start = startUid; |
| stop = stopUid; |
| } |
| |
| public static UidRange createForUser(int userId) { |
| return new UidRange(userId * PER_USER_RANGE, (userId + 1) * PER_USER_RANGE - 1); |
| } |
| |
| public int getStartUser() { |
| return start / PER_USER_RANGE; |
| } |
| |
| public boolean contains(int uid) { |
| return start <= uid && uid <= stop; |
| } |
| |
| /** |
| * Returns the count of UIDs in this range. |
| */ |
| public int count() { |
| return 1 + stop - start; |
| } |
| |
| /** |
| * @return {@code true} if this range contains every UID contained by the {@param other} range. |
| */ |
| public boolean containsRange(UidRange other) { |
| return start <= other.start && other.stop <= stop; |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = 17; |
| result = 31 * result + start; |
| result = 31 * result + stop; |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o instanceof UidRange) { |
| UidRange other = (UidRange) o; |
| return start == other.start && stop == other.stop; |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return start + "-" + stop; |
| } |
| |
| // Implement the Parcelable interface |
| // TODO: Consider making this class no longer parcelable, since all users are likely in the |
| // system server. |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(Parcel dest, int flags) { |
| dest.writeInt(start); |
| dest.writeInt(stop); |
| } |
| |
| public static final Creator<UidRange> CREATOR = |
| new Creator<UidRange>() { |
| @Override |
| public UidRange createFromParcel(Parcel in) { |
| int start = in.readInt(); |
| int stop = in.readInt(); |
| |
| return new UidRange(start, stop); |
| } |
| @Override |
| public UidRange[] newArray(int size) { |
| return new UidRange[size]; |
| } |
| }; |
| } |