Examples with TransactionCompletedEvent arez.spy.TransactionCompletedEvent used on opensource projects

Example 6 with TransactionCompletedEvent

use of arez.spy.TransactionCompletedEvent in project arez by arez.

the class ArezContextTest method action_function_throwsException.

@Test
public void action_function_throwsException() throws Throwable {
    final ArezContext context = new ArezContext();
    assertFalse(context.isTransactionActive());
    assertThrowsWithMessage(context::getTransaction, "Arez-0117: Attempting to get current transaction but no transaction is active.");
    final String name = ValueUtil.randomString();
    final IOException ioException = new IOException();
    final String param1 = "";
    final Object param2 = null;
    final int param3 = 3;
    final TestSpyEventHandler handler = new TestSpyEventHandler();
    context.getSpy().addSpyEventHandler(handler);
    final boolean mutation = false;
    assertThrows(IOException.class, () -> context.action(name, mutation, () -> {
        throw ioException;
    }, param1, param2, param3));
    assertFalse(context.isTransactionActive());
    handler.assertEventCount(4);
    {
        final ActionStartedEvent e = handler.assertEvent(ActionStartedEvent.class, 0);
        assertEquals(e.getName(), name);
        assertEquals(e.isTracked(), false);
        final Object[] parameters = e.getParameters();
        assertEquals(parameters.length, 3);
        assertEquals(parameters[0], param1);
        assertEquals(parameters[1], param2);
        assertEquals(parameters[2], param3);
    }
    {
        final TransactionStartedEvent e = handler.assertEvent(TransactionStartedEvent.class, 1);
        assertEquals(e.getName(), name);
        assertEquals(e.isMutation(), mutation);
        assertEquals(e.getTracker(), null);
    }
    {
        final TransactionCompletedEvent e = handler.assertEvent(TransactionCompletedEvent.class, 2);
        assertEquals(e.getName(), name);
        assertEquals(e.isMutation(), mutation);
        assertEquals(e.getTracker(), null);
    }
    {
        final ActionCompletedEvent e = handler.assertEvent(ActionCompletedEvent.class, 3);
        assertEquals(e.getName(), name);
        assertEquals(e.getThrowable(), ioException);
        assertEquals(e.returnsResult(), true);
        assertEquals(e.getResult(), null);
        assertEquals(e.isTracked(), false);
        final Object[] parameters = e.getParameters();
        assertEquals(parameters.length, 3);
        assertEquals(parameters[0], param1);
        assertEquals(parameters[1], param2);
        assertEquals(parameters[2], param3);
    }
}

Example 7 with TransactionCompletedEvent

use of arez.spy.TransactionCompletedEvent in project arez by arez.

the class SpyEventProcessorTest method decreaseNesting.

@Test
public void decreaseNesting() throws Throwable {
    final TestSpyEventProcessor processor = new TestSpyEventProcessor();
    final TransactionCompletedEvent event = new TransactionCompletedEvent(ValueUtil.randomString(), ValueUtil.randomBoolean(), null, Math.min(1, Math.abs(ValueUtil.randomLong())));
    final AtomicInteger handleCallCount = new AtomicInteger();
    final BiConsumer<SpyUtil.NestingDelta, TransactionCompletedEvent> handler = (delta, e) -> {
        handleCallCount.incrementAndGet();
        assertEquals(delta, SpyUtil.NestingDelta.DECREASE);
        assertEquals(e, event);
    };
    processor.on(TransactionCompletedEvent.class, handler);
    assertEquals(processor.getNestingDelta(event), SpyUtil.NestingDelta.DECREASE);
    assertEquals(handleCallCount.get(), 0);
    assertEquals(processor.getNestingLevel(), 0);
    assertEquals(processor._handleUnhandledEventCallCount, 0);
    processor.onSpyEvent(event);
    assertEquals(handleCallCount.get(), 1);
    assertEquals(processor.getNestingLevel(), -1);
    assertEquals(processor._handleUnhandledEventCallCount, 0);
}

Example 8 with TransactionCompletedEvent

use of arez.spy.TransactionCompletedEvent in project arez by arez.

the class Transaction method commit.

/**
 * Commit the supplied transaction.
 *
 * This method verifies that the transaction active is the supplied transaction before committing
 * the transaction and restoring the prior transaction if any.
 *
 * @param transaction the transaction.
 */
static void commit(@Nonnull final Transaction transaction) {
    if (Arez.shouldCheckInvariants()) {
        invariant(() -> null != c_transaction, () -> "Arez-0122: Attempting to commit transaction named '" + transaction.getName() + "' but no transaction is active.");
        assert null != c_transaction;
        invariant(() -> c_transaction == transaction, () -> "Arez-0123: Attempting to commit transaction named '" + transaction.getName() + "' but this does not match existing transaction named '" + c_transaction.getName() + "'.");
        invariant(() -> !c_suspended, () -> "Arez-0124: Attempting to commit transaction named '" + transaction.getName() + "' transaction is suspended.");
    }
    assert null != c_transaction;
    c_transaction.commit();
    if (c_transaction.getContext().willPropagateSpyEvents()) {
        final String name = c_transaction.getName();
        final boolean mutation = !Arez.shouldEnforceTransactionType() || TransactionMode.READ_WRITE == c_transaction.getMode();
        final Observer tracker = c_transaction.getTracker();
        final ObserverInfoImpl trackerInfo = null != tracker ? new ObserverInfoImpl(c_transaction.getContext().getSpy(), tracker) : null;
        final long duration = System.currentTimeMillis() - c_transaction.getStartedAt();
        c_transaction.getContext().getSpy().reportSpyEvent(new TransactionCompletedEvent(name, mutation, trackerInfo, duration));
    }
    final Transaction previousInSameContext = Arez.areZonesEnabled() ? c_transaction.getPreviousInSameContext() : c_transaction.getPrevious();
    if (null == previousInSameContext) {
        c_transaction.getContext().enableScheduler();
    }
    c_transaction = c_transaction.getPrevious();
}