Examples with ExecutorCloser org.apache.jackrabbit.oak.commons.concurrent.ExecutorCloser used on opensource projects

Example 36 with ExecutorCloser

use of org.apache.jackrabbit.oak.commons.concurrent.ExecutorCloser in project jackrabbit-oak by apache.

the class CompactionAndCleanupIT method randomAccessFileConcurrentReadAndLength.

@Test
public void randomAccessFileConcurrentReadAndLength() throws Exception {
    final FileStore fileStore = fileStoreBuilder(getFileStoreFolder()).withGCOptions(defaultGCOptions().setRetainedGenerations(2)).withMaxFileSize(1).withMemoryMapping(false).build();
    final SegmentNodeStore nodeStore = SegmentNodeStoreBuilders.builder(fileStore).build();
    ExecutorService executorService = newFixedThreadPool(300);
    final AtomicInteger counter = new AtomicInteger();
    final ReferenceCollector dummyCollector = new ReferenceCollector() {

        @Override
        public void addReference(String reference, String nodeId) {
        // do nothing
        }
    };
    try {
        Callable<Void> concurrentWriteTask = new Callable<Void>() {

            @Override
            public Void call() throws Exception {
                NodeBuilder builder = nodeStore.getRoot().builder();
                builder.setProperty("blob-" + counter.getAndIncrement(), createBlob(nodeStore, 25 * 25));
                nodeStore.merge(builder, EmptyHook.INSTANCE, CommitInfo.EMPTY);
                fileStore.flush();
                return null;
            }
        };
        Callable<Void> concurrentCleanupTask = new Callable<Void>() {

            @Override
            public Void call() throws Exception {
                fileStore.cleanup();
                return null;
            }
        };
        Callable<Void> concurrentReferenceCollector = new Callable<Void>() {

            @Override
            public Void call() throws Exception {
                fileStore.collectBlobReferences(dummyCollector);
                return null;
            }
        };
        List<Future<?>> results = newArrayList();
        for (int i = 0; i < 100; i++) {
            results.add(executorService.submit(concurrentWriteTask));
            results.add(executorService.submit(concurrentCleanupTask));
            results.add(executorService.submit(concurrentReferenceCollector));
        }
        for (Future<?> result : results) {
            assertNull(result.get());
        }
    } finally {
        new ExecutorCloser(executorService).close();
        fileStore.close();
    }
}