Java Code Examples for io.github.resilience4j.ratelimiter.RateLimiter#acquirePermission()

The following examples show how to use io.github.resilience4j.ratelimiter.RateLimiter#acquirePermission() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: TaggedRateLimiterMetricsPublisherTest.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Test
public void testReplaceNewMeter() {
    RateLimiter oldOne = RateLimiter.of("backendC", RateLimiterConfig.ofDefaults());
    // add meters of old
    taggedRateLimiterMetricsPublisher.addMetrics(meterRegistry, oldOne);
    // one permission class
    oldOne.acquirePermission();

    assertThat(taggedRateLimiterMetricsPublisher.meterIdMap).containsKeys("backendC");
    assertThat(taggedRateLimiterMetricsPublisher.meterIdMap.get("backendC")).hasSize(2);
    Collection<Gauge> gauges = meterRegistry.get(DEFAULT_AVAILABLE_PERMISSIONS_METRIC_NAME)
        .gauges();
    Optional<Gauge> available = findMeterByNamesTag(gauges, oldOne.getName());
    assertThat(available).isPresent();
    assertThat(available.get().value())
        .isEqualTo(oldOne.getMetrics().getAvailablePermissions());

    RateLimiter newOne = RateLimiter.of("backendC", RateLimiterConfig.ofDefaults());

    // add meters of old
    taggedRateLimiterMetricsPublisher.addMetrics(meterRegistry, newOne);
    // three permission call
    newOne.acquirePermission(3);

    assertThat(taggedRateLimiterMetricsPublisher.meterIdMap).containsKeys("backendC");
    assertThat(taggedRateLimiterMetricsPublisher.meterIdMap.get("backendC")).hasSize(2);
    gauges = meterRegistry.get(DEFAULT_AVAILABLE_PERMISSIONS_METRIC_NAME)
        .gauges();
    available = findMeterByNamesTag(gauges, newOne.getName());
    assertThat(available).isPresent();
    assertThat(available.get().value())
        .isEqualTo(newOne.getMetrics().getAvailablePermissions());
}
Example 2
Source File: DecoratorsTest.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
private void alignTime(RateLimiter rateLimiter) {
    RateLimiter.Metrics metrics = rateLimiter.getMetrics();
    while (rateLimiter.acquirePermission()) {
        state = !state;
    }
    // Wait to the start of the next cycle in spin loop
    while (metrics.getAvailablePermissions() == 0) {
        state = !state;
    }
    System.out.println(state);
}