Examples with PENDING_TASKS reactor.netty.Metrics.PENDING_TASKS used on opensource projects

Example 1 with PENDING_TASKS

use of reactor.netty.Metrics.PENDING_TASKS in project reactor-netty by reactor.

the class TransportEventLoopMetricsTest method testEventLoopMetrics.

@Test
void testEventLoopMetrics() throws InterruptedException {
    final CountDownLatch latch = new CountDownLatch(1);
    DisposableServer server = null;
    Connection client = null;
    LoopResources loop = null;
    try {
        loop = LoopResources.create(TransportEventLoopMetricsTest.class.getName(), 3, true);
        server = TcpServer.create().port(0).metrics(true).runOn(loop).doOnConnection(c -> {
            EventLoop eventLoop = c.channel().eventLoop();
            IntStream.range(0, 10).forEach(i -> eventLoop.execute(() -> {
            }));
            if (eventLoop instanceof SingleThreadEventExecutor) {
                SingleThreadEventExecutor singleThreadEventExecutor = (SingleThreadEventExecutor) eventLoop;
                String[] tags = new String[] { NAME, singleThreadEventExecutor.threadProperties().name() };
                assertThat(getGaugeValue(EVENT_LOOP_PREFIX + PENDING_TASKS, tags)).isEqualTo(10);
                latch.countDown();
            }
        }).wiretap(true).bindNow();
        assertThat(server).isNotNull();
        client = TcpClient.create().port(server.port()).wiretap(true).connectNow();
        assertThat(client).isNotNull();
        assertThat(latch.await(5, TimeUnit.SECONDS)).as("Did not find 10 pending tasks from meter").isTrue();
    } finally {
        if (client != null) {
            client.disposeNow();
        }
        if (server != null) {
            server.disposeNow();
        }
        if (loop != null) {
            loop.disposeLater().block(Duration.ofSeconds(10));
        }
    }
}