1 /* 2 * Copyright (C) 2024 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 com.android.server.companion.utils; 18 19 import android.annotation.UserIdInt; 20 21 public final class AssociationUtils { 22 23 /** Range of Association IDs allocated for a user. */ 24 private static final int ASSOCIATIONS_IDS_PER_USER_RANGE = 100000; 25 26 /** 27 * Get the left boundary of the association id range for the user. 28 */ getFirstAssociationIdForUser(@serIdInt int userId)29 public static int getFirstAssociationIdForUser(@UserIdInt int userId) { 30 // We want the IDs to start from 1, not 0. 31 return userId * ASSOCIATIONS_IDS_PER_USER_RANGE + 1; 32 } 33 34 /** 35 * Get the right boundary of the association id range for the user. 36 */ getLastAssociationIdForUser(@serIdInt int userId)37 public static int getLastAssociationIdForUser(@UserIdInt int userId) { 38 return (userId + 1) * ASSOCIATIONS_IDS_PER_USER_RANGE; 39 } 40 AssociationUtils()41 private AssociationUtils() {} 42 } 43