1 /* 2 * Copyright (C) 2022 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.codeproviderresources; 18 19 import android.app.sdksandbox.SandboxedSdkContext; 20 import android.app.sdksandbox.SandboxedSdkProvider; 21 import android.content.Context; 22 import android.content.res.AssetManager; 23 import android.content.res.Resources; 24 import android.os.Bundle; 25 import android.view.View; 26 27 import java.io.BufferedReader; 28 import java.io.IOException; 29 import java.io.InputStreamReader; 30 import java.util.concurrent.Executor; 31 32 public class ResourceSandboxedSdkProvider extends SandboxedSdkProvider { 33 34 private static final String STRING_RESOURCE = "Test String"; 35 private static final int INTEGER_RESOURCE = 1234; 36 private static final String STRING_ASSET = "This is a test asset"; 37 private static final String ASSET_FILE = "test-asset.txt"; 38 39 @Override initSdk(SandboxedSdkContext context, Bundle params, Executor executor, InitSdkCallback callback)40 public void initSdk(SandboxedSdkContext context, Bundle params, 41 Executor executor, InitSdkCallback callback) { 42 Resources resources = context.getResources(); 43 String stringRes = resources.getString(R.string.test_string); 44 int integerRes = resources.getInteger(R.integer.test_integer); 45 if (!stringRes.equals(STRING_RESOURCE)) { 46 sendError(callback, STRING_RESOURCE, stringRes); 47 } 48 if (integerRes != INTEGER_RESOURCE) { 49 sendError(callback, String.valueOf(INTEGER_RESOURCE), String.valueOf(integerRes)); 50 } 51 52 AssetManager assets = context.getAssets(); 53 try (BufferedReader reader = new BufferedReader( 54 new InputStreamReader(assets.open(ASSET_FILE)))) { 55 String readAsset = reader.readLine(); 56 if (!readAsset.equals(STRING_ASSET)) { 57 sendError(callback, STRING_ASSET, readAsset); 58 } 59 } catch (IOException e) { 60 callback.onInitSdkError("File not found: " + ASSET_FILE); 61 } 62 callback.onInitSdkFinished(new Bundle()); 63 } 64 65 @Override getView(Context windowContext, Bundle params)66 public View getView(Context windowContext, Bundle params) { 67 return null; 68 } 69 70 @Override onExtraDataReceived(Bundle extraData)71 public void onExtraDataReceived(Bundle extraData) { 72 } 73 74 /* Sends an error if the expected resource/asset does not match the read value. */ sendError(InitSdkCallback callback, String expected, String actual)75 private void sendError(InitSdkCallback callback, String expected, String actual) { 76 callback.onInitSdkError("Expected " + expected + ", actual " + actual); 77 } 78 } 79