Neil Fuller | 328532a | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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.timezone; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.os.ParcelFileDescriptor; |
| 21 | |
| 22 | import java.io.FileInputStream; |
| 23 | import java.io.IOException; |
| 24 | import java.util.concurrent.Executor; |
| 25 | import libcore.io.Streams; |
| 26 | |
| 27 | /** |
| 28 | * A single class that implements multiple helper interfaces for use by {@link RulesManagerService}. |
| 29 | */ |
| 30 | final class RulesManagerServiceHelperImpl |
| 31 | implements PermissionHelper, Executor, FileDescriptorHelper { |
| 32 | |
| 33 | private final Context mContext; |
| 34 | |
| 35 | RulesManagerServiceHelperImpl(Context context) { |
| 36 | mContext = context; |
| 37 | } |
| 38 | |
| 39 | @Override |
| 40 | public void enforceCallerHasPermission(String requiredPermission) { |
| 41 | mContext.enforceCallingPermission(requiredPermission, null /* message */); |
| 42 | } |
| 43 | |
| 44 | // TODO Wake lock required? |
| 45 | @Override |
| 46 | public void execute(Runnable runnable) { |
| 47 | // TODO Is there a better way? |
| 48 | new Thread(runnable).start(); |
| 49 | } |
| 50 | |
| 51 | @Override |
| 52 | public byte[] readFully(ParcelFileDescriptor parcelFileDescriptor) throws IOException { |
| 53 | try (ParcelFileDescriptor pfd = parcelFileDescriptor) { |
| 54 | // Read bytes |
| 55 | FileInputStream in = new FileInputStream(pfd.getFileDescriptor(), false /* isOwner */); |
| 56 | return Streams.readFully(in); |
| 57 | } |
| 58 | } |
| 59 | } |