Example usage for io.vertx.core Context isEventLoopContext

Introduction

In this page you can find the example usage for io.vertx.core Context isEventLoopContext.

Prototype

boolean isEventLoopContext();

Source Link

Document

Is the current context an event loop context?

Usage

From source file:examples.CoreExamples.java

License:Open Source License

public void retrieveContextType(Vertx vertx) {
    Context context = vertx.getOrCreateContext();
    if (context.isEventLoopContext()) {
        System.out.println("Context attached to Event Loop");
    } else if (context.isWorkerContext()) {
        System.out.println("Context attached to Worker Thread");
    } else if (context.isMultiThreadedWorkerContext()) {
        System.out.println("Context attached to Worker Thread - multi threaded worker");
    } else if (!Context.isOnVertxThread()) {
        System.out.println("Context not attached to a thread managed by vert.x");
    }// ww w.  ja v  a  2s.com
}

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From source file:org.apache.servicecomb.faultinjection.FaultInjectionHandler.java

License:Apache License

@Override
public void handle(Invocation invocation, AsyncResponse asyncResp) throws Exception {

    // prepare the key and lookup for request count.
    String key = invocation.getTransport().getName() + invocation.getMicroserviceQualifiedName();
    AtomicLong reqCount = FaultInjectionUtil.getOperMetTotalReq(key);
    // increment the request count here after checking the delay/abort condition.
    long reqCountCurrent = reqCount.getAndIncrement();

    FaultParam param = new FaultParam(reqCountCurrent);
    Context currentContext = Vertx.currentContext();
    if (currentContext != null && currentContext.isEventLoopContext()) {
        param.setVertx(currentContext.owner());
    }// w  ww.  j  a  v a  2 s . co m

    FaultExecutor executor = new FaultExecutor(faultInjectionFeatureList, invocation, param);
    executor.execute(response -> {
        try {
            if (response.isFailed()) {
                asyncResp.complete(response);
            } else {
                invocation.next(asyncResp);
            }
        } catch (Exception e) {
            asyncResp.consumerFail(e);
        }
    });
}

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From source file:org.apache.servicecomb.foundation.vertx.client.ClientPoolManager.java

License:Apache License

protected CLIENT_POOL findByContext(Context targetContext) {
    Context currentContext = targetContext != null ? targetContext : Vertx.currentContext();
    if (currentContext != null && currentContext.owner() == vertx && currentContext.isEventLoopContext()) {
        // standard reactive mode
        CLIENT_POOL clientPool = currentContext.get(id);
        if (clientPool != null) {
            return clientPool;
        }//from  ww w  .  java  2  s . c  o  m

        // this will make "client.thread-count" bigger than which in microservice.yaml
        // maybe it's better to remove "client.thread-count", just use "rest/highway.thread-count"
        return createClientPool(currentContext);
    }

    // not in correct context:
    // 1.normal thread
    // 2.vertx worker thread
    // 3.other vertx thread
    // select a existing context
    int idx = reactiveNextIndex.getAndIncrement() % pools.size();
    if (idx < 0) {
        idx = -idx;
    }
    return pools.get(idx);
}

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