Package com.netflix.hystrix.strategy.concurrency

Examples of com.netflix.hystrix.strategy.concurrency.HystrixConcurrencyStrategy

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        private final HystrixThreadPoolMetrics metrics;
        private final Scheduler scheduler;

        public HystrixThreadPoolDefault(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolProperties.Setter propertiesDefaults) {
            this.properties = HystrixPropertiesFactory.getThreadPoolProperties(threadPoolKey, propertiesDefaults);
            HystrixConcurrencyStrategy concurrencyStrategy = HystrixPlugins.getInstance().getConcurrencyStrategy();
            this.queue = concurrencyStrategy.getBlockingQueue(properties.maxQueueSize().get());
            this.threadPool = concurrencyStrategy.getThreadPool(threadPoolKey, properties.coreSize(), properties.coreSize(), properties.keepAliveTimeMinutes(), TimeUnit.MINUTES, queue);
            this.metrics = HystrixThreadPoolMetrics.getInstance(threadPoolKey, threadPool, properties);
            this.scheduler = new HystrixContextScheduler(concurrencyStrategy, this);

            /* strategy: HystrixMetricsPublisherThreadPool */
            HystrixMetricsPublisherFactory.createOrRetrievePublisherForThreadPool(threadPoolKey, this.metrics, this.properties);
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        // just use defaults
    }

    @Test
    public void testConcurrencyStrategyDefaultImpl() {
        HystrixConcurrencyStrategy impl = HystrixPlugins.getInstance().getConcurrencyStrategy();
        assertTrue(impl instanceof HystrixConcurrencyStrategyDefault);
    }
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    }

    @Test
    public void testConcurrencyStrategyViaRegisterMethod() {
        HystrixPlugins.getInstance().registerConcurrencyStrategy(new HystrixConcurrencyStrategyTestImpl());
        HystrixConcurrencyStrategy impl = HystrixPlugins.getInstance().getConcurrencyStrategy();
        assertTrue(impl instanceof HystrixConcurrencyStrategyTestImpl);
    }
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    @Test
    public void testConcurrencyStrategyViaProperty() {
        try {
            String fullClass = HystrixConcurrencyStrategyTestImpl.class.getName();
            System.setProperty("hystrix.plugin.HystrixConcurrencyStrategy.implementation", fullClass);
            HystrixConcurrencyStrategy impl = HystrixPlugins.getInstance().getConcurrencyStrategy();
            assertTrue(impl instanceof HystrixConcurrencyStrategyTestImpl);
        } finally {
            System.clearProperty("hystrix.plugin.HystrixConcurrencyStrategy.implementation");
        }
    }
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        // just use defaults
    }
   
    @Test
    public void testRequestContextViaPluginInTimeout() {
        HystrixPlugins.getInstance().registerConcurrencyStrategy(new HystrixConcurrencyStrategy() {
            @Override
            public <T> Callable<T> wrapCallable(final Callable<T> callable) {
                return new RequestIdCallable<T>(callable);
            }
        });
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public class HystrixRequestCacheTest {

    @Test
    public void testCache() {
        HystrixConcurrencyStrategy strategy = HystrixConcurrencyStrategyDefault.getInstance();
        HystrixRequestContext context = HystrixRequestContext.initializeContext();
        try {
            HystrixRequestCache cache1 = HystrixRequestCache.getInstance(HystrixCommandKey.Factory.asKey("command1"), strategy);
            cache1.putIfAbsent("valueA", new TestObservable("a1"));
            cache1.putIfAbsent("valueA", new TestObservable("a2"));
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        }
    }

    @Test
    public void testClearCache() {
        HystrixConcurrencyStrategy strategy = HystrixConcurrencyStrategyDefault.getInstance();
        HystrixRequestContext context = HystrixRequestContext.initializeContext();
        try {
            HystrixRequestCache cache1 = HystrixRequestCache.getInstance(HystrixCommandKey.Factory.asKey("command1"), strategy);
            cache1.putIfAbsent("valueA", new TestObservable("a1"));
            assertEquals("a1", cache1.get("valueA").toBlocking().last());
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  @Override
  protected void configure() {
    try {
      HystrixPlugins.getInstance().registerConcurrencyStrategy(new HystrixRegistryBackedConcurrencyStrategy());
    } catch (IllegalStateException e) {
      HystrixConcurrencyStrategy existingStrategy = HystrixPlugins.getInstance().getConcurrencyStrategy();
      if (!(existingStrategy instanceof HystrixRegistryBackedConcurrencyStrategy)) {
        throw new IllegalStateException("Cannot install Hystrix integration because another concurrency strategy (" + existingStrategy.getClass() + ") is already installed");
      }
    }

    if (reportMetricsToSse) {
      bind(HystrixCommandMetricsPeriodicPublisher.class).in(Singleton.class);
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Related Classes of com.netflix.hystrix.strategy.concurrency.HystrixConcurrencyStrategy

  • com.netflix.hystrix.HystrixRequestCacheTest
  • com.netflix.hystrix.HystrixThreadPool$HystrixThreadPoolDefault
  • com.netflix.hystrix.strategy.HystrixPluginsTest
  • ratpack.hystrix.HystrixModule
  • java.util.concurrent.ThreadFactory
  • java.util.concurrent.atomic.AtomicInteger
  • java.util.concurrent.ThreadPoolExecutor
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