Examples with SignallingLock org.commonjava.cdi.util.weft.SignallingLock used on opensource projects

Example 16 with SignallingLock

use of org.commonjava.cdi.util.weft.SignallingLock in project partyline by Commonjava.

the class JoinFileWriteJustBeforeFinishedTest method run.

/**
 * Test verifies JoinableFile read could be done before its write stream close
 * with read init delay, this setup an script of events for one single file, where:
 * <ol>
 *     <li>Simulate JoinableFile write process </li>
 *     <li>Read should be proceeded before write stream close</li>
 * </ol>
 * @throws Exception
 */
@BMRules(rules = { // wait for read call to exit
@BMRule(name = "write close", targetClass = "RandomAccessJF", targetMethod = "close", targetLocation = "ENTRY", condition = "incrementCounter($0)==1", action = "debug(\">>>wait for service enter read.\");" + "waitFor(\"read\");" + "debug(\"<<<proceed with write close.\")"), // setup the trigger to signal write close when the read exits
@BMRule(name = "read", targetClass = "RandomAccessJF", targetMethod = "joinStream", targetLocation = "EXIT", action = "debug(\"<<<signalling write close.\"); " + "signalWake(\"read\", true);" + "debug(\"<<<signalled write close.\")") })
@Test
@BMUnitConfig(debug = true)
public void run() throws Exception {
    final ExecutorService execs = Executors.newFixedThreadPool(2);
    final CountDownLatch latch = new CountDownLatch(2);
    final File file = temp.newFile();
    String threadName = "writer" + writers++;
    final JoinableFile stream = new RandomAccessJFS().getFile(file, new LocalLockOwner(file.getAbsolutePath(), name.getMethodName(), LockLevel.write), null, true, new SignallingLock());
    execs.execute(() -> {
        Thread.currentThread().setName(threadName);
        new TimedFileWriter(stream, 1, latch).run();
    });
    execs.execute(() -> {
        Thread.currentThread().setName("reader" + readers++);
        new AsyncFileReader(1000, -1, -1, stream, latch).run();
    });
    System.out.println("Waiting for " + name.getMethodName() + " threads to complete.");
    latch.await();
}