Examples with Cache com.google.android.exoplayer2.upstream.cache.Cache used on opensource projects

Example 11 with Cache

use of com.google.android.exoplayer2.upstream.cache.Cache in project ExoPlayer by google.

the class CacheWriterTest method cache_afterFailureOnClose_succeeds.

@Test
public void cache_afterFailureOnClose_succeeds() throws Exception {
    FakeDataSet fakeDataSet = new FakeDataSet().setRandomData("test_data", 100);
    FakeDataSource upstreamDataSource = new FakeDataSource(fakeDataSet);
    AtomicBoolean failOnClose = new AtomicBoolean(/* initialValue= */
    true);
    FailOnCloseDataSink dataSink = new FailOnCloseDataSink(cache, failOnClose);
    CacheDataSource cacheDataSource = new CacheDataSource(cache, upstreamDataSource, new FileDataSource(), dataSink, /* flags= */
    0, /* eventListener= */
    null);
    CachingCounters counters = new CachingCounters();
    CacheWriter cacheWriter = new CacheWriter(cacheDataSource, new DataSpec(Uri.parse("test_data")), /* temporaryBuffer= */
    null, counters);
    // DataSink.close failing must cause the operation to fail rather than succeed.
    assertThrows(IOException.class, cacheWriter::cache);
    // Since all of the bytes were read through the DataSource chain successfully before the sink
    // was closed, the progress listener will have seen all of the bytes being cached, even though
    // this may not really be the case.
    counters.assertValues(/* bytesAlreadyCached= */
    0, /* bytesNewlyCached= */
    100, /* contentLength= */
    100);
    failOnClose.set(false);
    // The bytes will be downloaded again, but cached successfully this time.
    cacheWriter.cache();
    counters.assertValues(/* bytesAlreadyCached= */
    0, /* bytesNewlyCached= */
    100, /* contentLength= */
    100);
    assertCachedData(cache, fakeDataSet);
}

Example 12 with Cache

use of com.google.android.exoplayer2.upstream.cache.Cache in project ExoPlayer by google.

the class CacheWriterTest method cacheUnknownLengthPartialCaching.

@Test
public void cacheUnknownLengthPartialCaching() throws Exception {
    FakeDataSet fakeDataSet = new FakeDataSet().newData("test_data").setSimulateUnknownLength(true).appendReadData(TestUtil.buildTestData(100)).endData();
    FakeDataSource dataSource = new FakeDataSource(fakeDataSet);
    Uri testUri = Uri.parse("test_data");
    DataSpec dataSpec = new DataSpec(testUri, /* position= */
    10, /* length= */
    20);
    CachingCounters counters = new CachingCounters();
    CacheWriter cacheWriter = new CacheWriter(new CacheDataSource(cache, dataSource), dataSpec, /* temporaryBuffer= */
    null, counters);
    cacheWriter.cache();
    counters.assertValues(0, 20, 20);
    counters.reset();
    cacheWriter = new CacheWriter(new CacheDataSource(cache, dataSource), new DataSpec(testUri), /* temporaryBuffer= */
    null, counters);
    cacheWriter.cache();
    counters.assertValues(20, 80, 100);
    assertCachedData(cache, fakeDataSet);
}

Example 13 with Cache

use of com.google.android.exoplayer2.upstream.cache.Cache in project ExoPlayer by google.

the class CacheDataSourceTest method switchToCacheSourceWithNonBlockingCacheDataSource.

@Test
public void switchToCacheSourceWithNonBlockingCacheDataSource() throws Exception {
    // Create a fake data source with a 1 MB default data.
    FakeDataSource upstream = new FakeDataSource();
    FakeData fakeData = upstream.getDataSet().newDefaultData().appendReadData(1024 * 1024 - 1);
    // Insert an action just before the end of the data to fail the test if reading from upstream
    // reaches end of the data.
    fakeData.appendReadAction(() -> fail("Read from upstream shouldn't reach to the end of the data.")).appendReadData(1);
    // Lock the content on the cache.
    CacheSpan cacheSpan = cache.startReadWriteNonBlocking(defaultCacheKey, 0, C.LENGTH_UNSET);
    assertThat(cacheSpan).isNotNull();
    assertThat(cacheSpan.isHoleSpan()).isTrue();
    // Create non blocking CacheDataSource.
    CacheDataSource cacheDataSource = new CacheDataSource(cache, upstream, 0);
    // Open source and read some data from upstream without writing to cache as the data is locked.
    cacheDataSource.open(unboundedDataSpec);
    byte[] buffer = new byte[1024];
    cacheDataSource.read(buffer, 0, buffer.length);
    // Unlock the span.
    cache.releaseHoleSpan(cacheSpan);
    assertCacheEmpty(cache);
    // Cache the data. Although we use another FakeDataSource instance, it shouldn't matter.
    FakeDataSource upstream2 = new FakeDataSource(new FakeDataSource().getDataSet().newDefaultData().appendReadData(1024 * 1024).endData());
    CacheWriter cacheWriter = new CacheWriter(new CacheDataSource(cache, upstream2), unboundedDataSpec, /* temporaryBuffer= */
    null, /* progressListener= */
    null);
    cacheWriter.cache();
    // Read the rest of the data.
    DataSourceUtil.readToEnd(cacheDataSource);
    cacheDataSource.close();
}

Example 14 with Cache

use of com.google.android.exoplayer2.upstream.cache.Cache in project ExoPlayer by google.

the class CacheDataSourceTest method deleteCachedWhileReadingFromUpstreamWithBlockingCacheDataSourceDoesNotBlock.

@Test
public void deleteCachedWhileReadingFromUpstreamWithBlockingCacheDataSourceDoesNotBlock() throws Exception {
    // Create a fake data source with a 1 KB default data.
    FakeDataSource upstream = new FakeDataSource();
    int dataLength = 1024;
    upstream.getDataSet().newDefaultData().appendReadData(dataLength).endData();
    // Cache the latter half of the data.
    int halfDataLength = 512;
    DataSpec dataSpec = buildDataSpec(/* position= */
    0, halfDataLength);
    CacheWriter cacheWriter = new CacheWriter(new CacheDataSource(cache, upstream), dataSpec, /* temporaryBuffer= */
    null, /* progressListener= */
    null);
    cacheWriter.cache();
    // Create blocking CacheDataSource.
    CacheDataSource cacheDataSource = new CacheDataSource(cache, upstream, CacheDataSource.FLAG_BLOCK_ON_CACHE);
    cacheDataSource.open(unboundedDataSpec);
    // Read the first half from upstream as it hasn't cached yet.
    DataSourceUtil.readExactly(cacheDataSource, halfDataLength);
    // Delete the cached latter half.
    NavigableSet<CacheSpan> cachedSpans = cache.getCachedSpans(defaultCacheKey);
    for (CacheSpan cachedSpan : cachedSpans) {
        if (cachedSpan.position >= halfDataLength) {
            cache.removeSpan(cachedSpan);
        }
    }
    // Read the rest of the data.
    DataSourceUtil.readToEnd(cacheDataSource);
    cacheDataSource.close();
}

Example 15 with Cache

use of com.google.android.exoplayer2.upstream.cache.Cache in project ExoPlayer by google.

the class CacheDataSourceTest method unknownLengthContentReadInOneConnectionAndLengthIsResolved.

@Test
public void unknownLengthContentReadInOneConnectionAndLengthIsResolved() throws Exception {
    FakeDataSource upstream = new FakeDataSource();
    upstream.getDataSet().newData(testDataUri).appendReadData(TEST_DATA).setSimulateUnknownLength(true);
    CacheDataSource cacheDataSource = new CacheDataSource(cache, upstream, 0);
    cacheDataSource.open(unboundedDataSpec);
    DataSourceUtil.readToEnd(cacheDataSource);
    cacheDataSource.close();
    assertThat(upstream.getAndClearOpenedDataSpecs()).hasLength(1);
    assertThat(ContentMetadata.getContentLength(cache.getContentMetadata(defaultCacheKey))).isEqualTo(TEST_DATA.length);
}