| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.timezone; |
| |
| import android.content.Context; |
| import android.os.ParcelFileDescriptor; |
| |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.util.concurrent.Executor; |
| import libcore.io.Streams; |
| |
| /** |
| * A single class that implements multiple helper interfaces for use by {@link RulesManagerService}. |
| */ |
| final class RulesManagerServiceHelperImpl |
| implements PermissionHelper, Executor, FileDescriptorHelper { |
| |
| private final Context mContext; |
| |
| RulesManagerServiceHelperImpl(Context context) { |
| mContext = context; |
| } |
| |
| @Override |
| public void enforceCallerHasPermission(String requiredPermission) { |
| mContext.enforceCallingPermission(requiredPermission, null /* message */); |
| } |
| |
| // TODO Wake lock required? |
| @Override |
| public void execute(Runnable runnable) { |
| // TODO Is there a better way? |
| new Thread(runnable).start(); |
| } |
| |
| @Override |
| public byte[] readFully(ParcelFileDescriptor parcelFileDescriptor) throws IOException { |
| try (ParcelFileDescriptor pfd = parcelFileDescriptor) { |
| // Read bytes |
| FileInputStream in = new FileInputStream(pfd.getFileDescriptor(), false /* isOwner */); |
| return Streams.readFully(in); |
| } |
| } |
| } |