Examples with RetStatus com.tencent.polaris.api.pojo.RetStatus used on opensource projects

Example 1 with RetStatus

use of com.tencent.polaris.api.pojo.RetStatus in project polaris-java by polarismesh.

the class ErrRateCircuitBreaker method stat.

@Override
public boolean stat(InstanceGauge gauge) {
    InstanceByProto instance = ChangeStateUtils.getInstance(gauge, localRegistry);
    if (null == instance) {
        return false;
    }
    InstanceLocalValue instanceLocalValue = instance.getInstanceLocalValue();
    if (null == instanceLocalValue) {
        return false;
    }
    ConfigSet<Config> configSet = CircuitBreakUtils.getConfigSet(gauge, this);
    StatusDimension statusDimension = ChangeStateUtils.buildStatusDimension(gauge, configSet.getLevel());
    if (CircuitBreakUtils.instanceClose(instance, statusDimension)) {
        Object pluginValue = instanceLocalValue.getPluginValue(id, create);
        ErrRateCounter errRateCounter = (ErrRateCounter) pluginValue;
        SliceWindow metricWindow = errRateCounter.getSliceWindow(statusDimension);
        metricWindow.addGauge((bucket -> {
            bucket.addMetric(Dimension.keyRequestCount.ordinal(), 1);
            if (gauge.getRetStatus() == RetStatus.RetFail) {
                return bucket.addMetric(Dimension.keyFailCount.ordinal(), 1);
            }
            return bucket.getMetric(Dimension.keyFailCount.ordinal());
        }));
    } else if (CircuitBreakUtils.instanceHalfOpen(instance, statusDimension)) {
        // 半开计数器
        Object pluginValue = instanceLocalValue.getPluginValue(id, create);
        HalfOpenCounter consecutiveCounter = (HalfOpenCounter) pluginValue;
        RetStatus retStatus = gauge.getRetStatus();
        return consecutiveCounter.triggerHalfOpenConversion(statusDimension, retStatus, configSet.getHalfOpenConfig());
    }
    return false;
}

Example 2 with RetStatus

use of com.tencent.polaris.api.pojo.RetStatus in project polaris-java by polarismesh.

the class ConsecutiveCircuitBreaker method stat.

@Override
public boolean stat(InstanceGauge gauge) {
    InstanceByProto instance = ChangeStateUtils.getInstance(gauge, localRegistry);
    if (null == instance) {
        return false;
    }
    InstanceLocalValue instanceLocalValue = instance.getInstanceLocalValue();
    if (null == instanceLocalValue) {
        return false;
    }
    ConfigSet<Config> configSet = CircuitBreakUtils.getConfigSet(gauge, this);
    StatusDimension statusDimension = ChangeStateUtils.buildStatusDimension(gauge, configSet.getLevel());
    if (CircuitBreakUtils.instanceClose(instance, statusDimension)) {
        Object pluginValue = instanceLocalValue.getPluginValue(id, create);
        ConsecutiveCounter consecutiveCounter = (ConsecutiveCounter) pluginValue;
        RetStatus retStatus = gauge.getRetStatus();
        int failCount;
        if (retStatus == RetStatus.RetFail) {
            failCount = consecutiveCounter.onFail(statusDimension);
        } else {
            consecutiveCounter.resetCounter(statusDimension);
            failCount = 0;
        }
        return failCount == configSet.getPlugConfig().getContinuousErrorThreshold();
    } else if (CircuitBreakUtils.instanceHalfOpen(instance, statusDimension)) {
        // 半开计数器
        Object pluginValue = instanceLocalValue.getPluginValue(id, create);
        HalfOpenCounter consecutiveCounter = (HalfOpenCounter) pluginValue;
        RetStatus retStatus = gauge.getRetStatus();
        return consecutiveCounter.triggerHalfOpenConversion(statusDimension, retStatus, configSet.getHalfOpenConfig());
    }
    return false;
}

Example 3 with RetStatus

use of com.tencent.polaris.api.pojo.RetStatus in project polaris-java by polarismesh.

the class Consumer method invokeByNameResolution.

private static String invokeByNameResolution(String namespace, String service, String value, ConsumerAPI consumerAPI) {
    System.out.println("namespace " + namespace + ", service " + service);
    // 1. we need to do naming resolution to get a load balanced host and port
    GetOneInstanceRequest getOneInstanceRequest = new GetOneInstanceRequest();
    getOneInstanceRequest.setNamespace(namespace);
    getOneInstanceRequest.setService(service);
    InstancesResponse oneInstance = consumerAPI.getOneInstance(getOneInstanceRequest);
    Instance[] instances = oneInstance.getInstances();
    System.out.println("instances count is " + instances.length);
    Instance targetInstance = instances[0];
    System.out.printf("target instance is %s:%d%n", targetInstance.getHost(), targetInstance.getPort());
    // 2. invoke the server by the resolved address
    String urlStr = String.format("http://%s:%d%s?value=%s", targetInstance.getHost(), targetInstance.getPort(), PATH, value);
    long startMillis = System.currentTimeMillis();
    HttpResult httpResult = httpGet(urlStr);
    long delay = System.currentTimeMillis() - startMillis;
    System.out.printf("invoke %s, code is %d, delay is %d%n", urlStr, httpResult.code, delay);
    // 3. report the invoke result to polaris-java, to eliminate the fail address
    RetStatus status = RetStatus.RetSuccess;
    if (httpResult.code != 200) {
        status = RetStatus.RetFail;
    }
    ServiceCallResult result = new ServiceCallResult();
    result.setNamespace(namespace);
    result.setService(service);
    result.setHost(targetInstance.getHost());
    result.setPort(targetInstance.getPort());
    result.setRetCode(httpResult.code);
    result.setDelay(delay);
    result.setRetStatus(status);
    consumerAPI.updateServiceCallResult(result);
    System.out.println("success to call updateServiceCallResult");
    return httpResult.message;
}