1 /* 2 * Copyright (C) 2018 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 package com.android.tradefed.invoker.shard.token; 17 18 import com.android.tradefed.device.ITestDevice; 19 20 /** 21 * Interface describing an object that can provide the tokens of a particular device. Each 22 * implementation can check one or several tokens. 23 * 24 * <p>A token is a special property present on the particular device. 25 * 26 * <p>Tokens are used during sharding to ensure tests requesting a particular tokens are run against 27 * the device providing the token. 28 */ 29 public interface ITokenProvider { 30 31 /** 32 * Query and return whether or not the device has a particular token. 33 * 34 * @param device Device queried for its tokens. 35 * @param token The token to check 36 * @return True if the device has the token, false otherwise. 37 */ hasToken(ITestDevice device, TokenProperty token)38 boolean hasToken(ITestDevice device, TokenProperty token); 39 } 40