com.google.android.exoplayer2.offline

Class DownloaderConstructorHelper

java.lang.Object

com.google.android.exoplayer2.offline.DownloaderConstructorHelper

public final class DownloaderConstructorHelper
extends java.lang.Object

A helper class that holds necessary parameters for Downloader construction.

Constructor Summary

Constructors

Constructor and Description
DownloaderConstructorHelper(Cache cache, DataSource.Factory upstreamDataSourceFactory)
DownloaderConstructorHelper(Cache cache, DataSource.Factory upstreamDataSourceFactory, DataSource.Factory cacheReadDataSourceFactory, DataSink.Factory cacheWriteDataSinkFactory, PriorityTaskManager priorityTaskManager)

Method Summary

Modifier and Type	Method and Description
CacheDataSource	buildCacheDataSource(boolean offline) Returns a new CacheDataSource instance.
Cache	getCache() Returns the Cache instance.
PriorityTaskManager	getPriorityTaskManager() Returns a PriorityTaskManager instance.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DownloaderConstructorHelper

public DownloaderConstructorHelper(Cache cache,
                                   DataSource.Factory upstreamDataSourceFactory)

Parameters:

cache - Cache instance to be used to store downloaded data.

upstreamDataSourceFactory - A DataSource.Factory for downloading data.

DownloaderConstructorHelper

public DownloaderConstructorHelper(Cache cache,
                                   DataSource.Factory upstreamDataSourceFactory,
                                   @Nullable
                                   DataSource.Factory cacheReadDataSourceFactory,
                                   @Nullable
                                   DataSink.Factory cacheWriteDataSinkFactory,
                                   @Nullable
                                   PriorityTaskManager priorityTaskManager)

Parameters:

cache - Cache instance to be used to store downloaded data.

upstreamDataSourceFactory - A DataSource.Factory for downloading data.

cacheReadDataSourceFactory - A DataSource.Factory for reading data from the cache. If null then standard FileDataSource instances will be used.

cacheWriteDataSinkFactory - A DataSink.Factory for writing data to the cache. If null then standard CacheDataSink instances will be used.

priorityTaskManager - A PriorityTaskManager to use when downloading. If non-null, downloaders will register as tasks with priority C.PRIORITY_DOWNLOAD whilst downloading.

Method Detail

getCache

public Cache getCache()

Returns the Cache instance.

getPriorityTaskManager

public PriorityTaskManager getPriorityTaskManager()

Returns a PriorityTaskManager instance.

buildCacheDataSource

public CacheDataSource buildCacheDataSource(boolean offline)

Returns a new CacheDataSource instance. If offline is true, it can only read data from the cache.