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@@ -1,128 +0,0 @@
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-package com.yonge.cooleshow.common.config;
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-
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-import java.util.concurrent.BlockingQueue;
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-import java.util.concurrent.Callable;
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-import java.util.concurrent.ThreadPoolExecutor;
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-import java.util.concurrent.TimeUnit;
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-
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-import org.slf4j.Logger;
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-import org.slf4j.LoggerFactory;
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-import org.springframework.stereotype.Component;
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-import org.springframework.web.context.request.RequestAttributes;
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-import org.springframework.web.context.request.RequestContextHolder;
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-
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-import com.netflix.hystrix.HystrixThreadPoolKey;
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-import com.netflix.hystrix.HystrixThreadPoolProperties;
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-import com.netflix.hystrix.strategy.HystrixPlugins;
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-import com.netflix.hystrix.strategy.concurrency.HystrixConcurrencyStrategy;
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-import com.netflix.hystrix.strategy.concurrency.HystrixRequestVariable;
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-import com.netflix.hystrix.strategy.concurrency.HystrixRequestVariableLifecycle;
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-import com.netflix.hystrix.strategy.eventnotifier.HystrixEventNotifier;
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-import com.netflix.hystrix.strategy.executionhook.HystrixCommandExecutionHook;
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-import com.netflix.hystrix.strategy.metrics.HystrixMetricsPublisher;
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-import com.netflix.hystrix.strategy.properties.HystrixPropertiesStrategy;
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-import com.netflix.hystrix.strategy.properties.HystrixProperty;
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-
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-//@Component
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-public class RequestAttributeHystrixConcurrencyStrategy extends HystrixConcurrencyStrategy {
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- private static final Logger log = LoggerFactory.getLogger(RequestAttributeHystrixConcurrencyStrategy.class);
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-
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- private HystrixConcurrencyStrategy delegate;
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-
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- public RequestAttributeHystrixConcurrencyStrategy() {
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- try {
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- this.delegate = HystrixPlugins.getInstance().getConcurrencyStrategy();
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- if (this.delegate instanceof RequestAttributeHystrixConcurrencyStrategy) {
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- // Welcome to singleton hell...
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- return;
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- }
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- HystrixCommandExecutionHook commandExecutionHook = HystrixPlugins
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- .getInstance().getCommandExecutionHook();
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- HystrixEventNotifier eventNotifier = HystrixPlugins.getInstance()
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- .getEventNotifier();
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- HystrixMetricsPublisher metricsPublisher = HystrixPlugins.getInstance()
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- .getMetricsPublisher();
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- HystrixPropertiesStrategy propertiesStrategy = HystrixPlugins.getInstance()
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- .getPropertiesStrategy();
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- this.logCurrentStateOfHystrixPlugins(eventNotifier, metricsPublisher,
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- propertiesStrategy);
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- HystrixPlugins.reset();
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- HystrixPlugins.getInstance().registerConcurrencyStrategy(this);
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- HystrixPlugins.getInstance()
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- .registerCommandExecutionHook(commandExecutionHook);
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- HystrixPlugins.getInstance().registerEventNotifier(eventNotifier);
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- HystrixPlugins.getInstance().registerMetricsPublisher(metricsPublisher);
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- HystrixPlugins.getInstance().registerPropertiesStrategy(propertiesStrategy);
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- }
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- catch (Exception e) {
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- log.error("Failed to register Sleuth Hystrix Concurrency Strategy", e);
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- }
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- }
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-
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- private void logCurrentStateOfHystrixPlugins(HystrixEventNotifier eventNotifier,
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- HystrixMetricsPublisher metricsPublisher,
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- HystrixPropertiesStrategy propertiesStrategy) {
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- if (log.isDebugEnabled()) {
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- log.debug("Current Hystrix plugins configuration is ["
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- + "concurrencyStrategy [" + this.delegate + "]," + "eventNotifier ["
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- + eventNotifier + "]," + "metricPublisher [" + metricsPublisher + "],"
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- + "propertiesStrategy [" + propertiesStrategy + "]," + "]");
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- log.debug("Registering Sleuth Hystrix Concurrency Strategy.");
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- }
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- }
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-
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- @Override
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- public <T> Callable<T> wrapCallable(Callable<T> callable) {
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- RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
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- return new WrappedCallable<>(callable, requestAttributes);
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- }
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-
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- @Override
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- public ThreadPoolExecutor getThreadPool(HystrixThreadPoolKey threadPoolKey,
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- HystrixProperty<Integer> corePoolSize,
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- HystrixProperty<Integer> maximumPoolSize,
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- HystrixProperty<Integer> keepAliveTime, TimeUnit unit,
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- BlockingQueue<Runnable> workQueue) {
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- return this.delegate.getThreadPool(threadPoolKey, corePoolSize, maximumPoolSize,
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- keepAliveTime, unit, workQueue);
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- }
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-
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- @Override
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- public ThreadPoolExecutor getThreadPool(HystrixThreadPoolKey threadPoolKey,
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- HystrixThreadPoolProperties threadPoolProperties) {
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- return this.delegate.getThreadPool(threadPoolKey, threadPoolProperties);
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- }
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-
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- @Override
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- public BlockingQueue<Runnable> getBlockingQueue(int maxQueueSize) {
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- return this.delegate.getBlockingQueue(maxQueueSize);
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- }
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-
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- @Override
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- public <T> HystrixRequestVariable<T> getRequestVariable(
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- HystrixRequestVariableLifecycle<T> rv) {
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- return this.delegate.getRequestVariable(rv);
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- }
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-
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- static class WrappedCallable<T> implements Callable<T> {
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-
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- private final Callable<T> target;
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- private final RequestAttributes requestAttributes;
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-
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- public WrappedCallable(Callable<T> target, RequestAttributes requestAttributes) {
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- this.target = target;
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- this.requestAttributes = requestAttributes;
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- }
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-
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- @Override
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- public T call() throws Exception {
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- try {
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- RequestContextHolder.setRequestAttributes(requestAttributes);
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- return target.call();
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- }
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- finally {
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- RequestContextHolder.resetRequestAttributes();
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- }
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- }
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- }
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-}
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