| /* |
| * Copyright (C) 2014 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.task.controllers; |
| |
| import android.content.Context; |
| |
| import com.android.server.task.StateChangedListener; |
| import com.android.server.task.TaskManagerService; |
| |
| /** |
| * Incorporates shared controller logic between the various controllers of the TaskManager. |
| * These are solely responsible for tracking a list of tasks, and notifying the TM when these |
| * are ready to run, or whether they must be stopped. |
| */ |
| public abstract class StateController { |
| |
| protected Context mContext; |
| protected StateChangedListener mStateChangedListener; |
| |
| public StateController(TaskManagerService service) { |
| mStateChangedListener = service; |
| mContext = service.getContext(); |
| } |
| |
| /** |
| * Implement the logic here to decide whether a task should be tracked by this controller. |
| * This logic is put here so the TaskManger can be completely agnostic of Controller logic. |
| * Also called when updating a task, so implementing controllers have to be aware of |
| * preexisting tasks. |
| */ |
| public abstract void maybeStartTrackingTask(TaskStatus taskStatus); |
| /** |
| * Remove task - this will happen if the task is cancelled, completed, etc. |
| */ |
| public abstract void maybeStopTrackingTask(TaskStatus taskStatus); |
| |
| } |