1 /* 2 * Copyright 2021 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.libraries.testing.deviceshadower.internal.common; 18 19 import com.android.libraries.testing.deviceshadower.Enums; 20 21 import java.io.IOException; 22 import java.util.HashSet; 23 import java.util.Set; 24 25 /** 26 * Interrupter sets and checks interruptible point, and interrupt operation by throwing 27 * IOException. 28 */ 29 public class Interrupter { 30 31 private final InheritableThreadLocal<Integer> mCurrentIdentifier; 32 private int mInterruptIdentifier; 33 34 private final Set<Enums.Operation> mInterruptOperations = new HashSet<>(); 35 Interrupter()36 public Interrupter() { 37 mCurrentIdentifier = new InheritableThreadLocal<Integer>() { 38 @Override 39 protected Integer initialValue() { 40 return -1; 41 } 42 }; 43 } 44 checkInterrupt()45 public void checkInterrupt() throws IOException { 46 if (mCurrentIdentifier.get() == mInterruptIdentifier) { 47 throw new IOException( 48 "Bluetooth interrupted at identifier: " + mCurrentIdentifier.get()); 49 } 50 } 51 setInterruptible(int identifier)52 public void setInterruptible(int identifier) { 53 mCurrentIdentifier.set(identifier); 54 } 55 interrupt(int identifier)56 public void interrupt(int identifier) { 57 mInterruptIdentifier = identifier; 58 } 59 addInterruptOperation(Enums.Operation operation)60 public void addInterruptOperation(Enums.Operation operation) { 61 mInterruptOperations.add(operation); 62 } 63 shouldInterrupt(Enums.Operation operation)64 public boolean shouldInterrupt(Enums.Operation operation) { 65 return mInterruptOperations.contains(operation); 66 } 67 68 } 69