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/*
* 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();
}
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