| /* |
| * 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.backup.restore; |
| |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| /** |
| * Restore infrastructure. |
| */ |
| public abstract class RestoreEngine { |
| |
| private static final String TAG = "RestoreEngine"; |
| |
| public static final int SUCCESS = 0; |
| public static final int TARGET_FAILURE = -2; |
| public static final int TRANSPORT_FAILURE = -3; |
| |
| private final AtomicBoolean mRunning = new AtomicBoolean(false); |
| private final AtomicInteger mResult = new AtomicInteger(SUCCESS); |
| |
| public boolean isRunning() { |
| return mRunning.get(); |
| } |
| |
| public void setRunning(boolean stillRunning) { |
| synchronized (mRunning) { |
| mRunning.set(stillRunning); |
| mRunning.notifyAll(); |
| } |
| } |
| |
| public int waitForResult() { |
| synchronized (mRunning) { |
| while (isRunning()) { |
| try { |
| mRunning.wait(); |
| } catch (InterruptedException e) { |
| } |
| } |
| } |
| return getResult(); |
| } |
| |
| public int getResult() { |
| return mResult.get(); |
| } |
| |
| public void setResult(int result) { |
| mResult.set(result); |
| } |
| |
| // TODO: abstract restore state and APIs |
| } |