@Test
public void testAddAndGetTile() throws InterruptedException, FileNotFoundException, IOException {
// Input stream to use
ImageInputStream stream_in = null;
try {
stream_in = new FileImageInputStream(TestData.file(this, "world.tiff"));
// Input RenderedImage to use
final RenderedOp input =
ImageReadDescriptor.create(
stream_in, 0, false, false, false, null, null, null, null, null);
// Boolean used for checking if the conditions are passed
final AtomicBoolean passed = new AtomicBoolean(true);
// Cache creation
final ConcurrentTileCacheMultiMap cache =
new ConcurrentTileCacheMultiMap(1000 * 1000, false, 1f, 4);
// Selection of one tile from the image
Raster data = input.getTile(input.getMinTileX(), input.getMinTileY());
// Setting the tile inside the cache
cache.add(input, input.getMinTileX(), input.getMinTileY(), data);
// Thread pool to use for doing concurrent access on the cache
ThreadPoolExecutor executor =
new ThreadPoolExecutor(
TOTAL, TOTAL, 60, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(1000000));
// Latch used for waiting all the threads to end their work
final CountDownLatch latch = new CountDownLatch(TOTAL);
// Cycle for launching various requests
int counter = TOTAL;
while (counter > 0) {
executor.execute(
new Runnable() {
public void run() {
// Get the tile to use
Raster data = cache.getTile(input, input.getMinTileX(), input.getMinTileY());
if (data == null) {
passed.getAndSet(false);
}
latch.countDown();
}
});
// Counter update
counter--;
}
// Waiting all threads to finish
latch.await();
// Ensure that all the threads have found the tile
Assert.assertTrue(passed.get());
} finally {
try {
if (stream_in != null) {
stream_in.flush();
stream_in.close();
}
} catch (Throwable t) {
//
}
}
}
