| /* |
| * 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.tv.data.epg; |
| |
| import android.app.job.JobParameters; |
| import android.app.job.JobScheduler; |
| import android.app.job.JobService; |
| import android.support.annotation.MainThread; |
| |
| /** Fetch EPG routinely or on-demand during channel scanning */ |
| public interface EpgFetcher { |
| |
| /** |
| * Starts the routine service of EPG fetching. It use {@link JobScheduler} to schedule the EPG |
| * fetching routine. The EPG fetching routine will be started roughly every 4 hours, unless the |
| * channel scanning of tuner input is started. |
| */ |
| @MainThread |
| void startRoutineService(); |
| |
| /** |
| * Fetches EPG immediately if current EPG data are out-dated, i.e., not successfully updated by |
| * routine fetching service due to various reasons. |
| */ |
| @MainThread |
| void fetchImmediatelyIfNeeded(); |
| |
| /** Fetches EPG immediately. */ |
| @MainThread |
| void fetchImmediately(); |
| |
| /** Notifies EPG fetch service that channel scanning is started. */ |
| @MainThread |
| void onChannelScanStarted(); |
| |
| /** Notifies EPG fetch service that channel scanning is finished. */ |
| @MainThread |
| void onChannelScanFinished(); |
| |
| @MainThread |
| boolean executeFetchTaskIfPossible(JobService jobService, JobParameters params); |
| |
| @MainThread |
| void stopFetchingJob(); |
| } |