Examples with Lock com.twitter.heron.spi.statemgr.Lock used on opensource projects

Example 6 with Lock

use of com.twitter.heron.spi.statemgr.Lock in project heron by twitter.

the class LocalFileSystemStateManagerTest method testGetLock.

@Test
public void testGetLock() throws Exception {
    initMocks();
    String expectedLockPath = String.format("//locks/%s__%s", TOPOLOGY_NAME, LOCK_NAME.getName());
    byte[] expectedContents = Thread.currentThread().getName().getBytes(Charset.defaultCharset());
    Lock lock = manager.getLock(TOPOLOGY_NAME, LOCK_NAME);
    assertTrue(lock.tryLock(0, TimeUnit.MILLISECONDS));
    assertWriteToFile(expectedLockPath, expectedContents, false);
    lock.unlock();
    assertDeleteFile(expectedLockPath);
}