How to use

org.camunda.bpm.engine.impl.util.SingleConsumerCondition

constructor

public FetchAndLockHandlerImpl() {
 this.condition = new SingleConsumerCondition(handlerThread);
}

@Test(timeout=10000)
public void shouldNotBlockIfSignalAvailableDifferentThread() throws InterruptedException {
 final SingleConsumerCondition condition = new SingleConsumerCondition(Thread.currentThread());
 Thread consumer = new Thread() {
  @Override
  public void run() {
   condition.signal();
  }
 };
 consumer.start();
 consumer.join();
 // then
 condition.await(100000);
}

@Test
public void cannotCreateWithNull() {
 try {
  new SingleConsumerCondition(null);
  Assert.fail("expected exception");
 }
 catch (IllegalArgumentException e) {
  // expected
 }
}

@Test
public void cannotAwaitFromDifferentThread() {
 // given
 SingleConsumerCondition condition = new SingleConsumerCondition(new Thread());
 // when then
 try {
  condition.await(0);
  Assert.fail("expected exception");
 }
 catch (RuntimeException e) {
  // expected
 }
}

@Test(timeout=10000)
public void shouldNotBlockIfSignalAvailable() {
 SingleConsumerCondition condition = new SingleConsumerCondition(Thread.currentThread());
 // given
 condition.signal();
 // then
 condition.await(100000);
}

public FetchAndLockHandlerImpl() {
 this.condition = new SingleConsumerCondition(handlerThread);
}

@Test(timeout=10000)
public void shouldNotBlockIfSignalAvailableDifferentThread() throws InterruptedException {
 final SingleConsumerCondition condition = new SingleConsumerCondition(Thread.currentThread());
 Thread consumer = new Thread() {
  @Override
  public void run() {
   condition.signal();
  }
 };
 consumer.start();
 consumer.join();
 // then
 condition.await(100000);
}

@Test
public void cannotCreateWithNull() {
 try {
  new SingleConsumerCondition(null);
  Assert.fail("expected exception");
 }
 catch (IllegalArgumentException e) {
  // expected
 }
}

@Test
public void cannotAwaitFromDifferentThread() {
 // given
 SingleConsumerCondition condition = new SingleConsumerCondition(new Thread());
 // when then
 try {
  condition.await(0);
  Assert.fail("expected exception");
 }
 catch (RuntimeException e) {
  // expected
 }
}

@Test(timeout=10000)
public void shouldNotBlockIfSignalAvailable() {
 SingleConsumerCondition condition = new SingleConsumerCondition(Thread.currentThread());
 // given
 condition.signal();
 // then
 condition.await(100000);
}