Examples with MetricsContext io.cdap.cdap.api.metrics.MetricsContext used on opensource projects

Example 1 with MetricsContext

use of io.cdap.cdap.api.metrics.MetricsContext in project cdap by caskdata.

the class MetricsReporterHook method postCall.

@Override
public void postCall(HttpRequest request, HttpResponseStatus status, HandlerInfo handlerInfo) {
    if (collectorCache == null) {
        return;
    }
    try {
        MetricsContext collector = collectorCache.get(createContext(handlerInfo));
        String name;
        int code = status.code();
        if (code < 100) {
            name = "unknown";
        } else if (code < 200) {
            name = "information";
        } else if (code < 300) {
            name = "successful";
        } else if (code < 400) {
            name = "redirect";
        } else if (code < 500) {
            name = "client-error";
        } else if (code < 600) {
            name = "server-error";
        } else {
            name = "unknown";
        }
        // todo: report metrics broken down by status
        collector.increment("response." + name, 1);
        // store response time metric
        long currTime = System.nanoTime();
        String startTimeStr = request.headers().get(HttpHeaderNames.CDAP_REQ_TIMESTAMP_HDR);
        if (startTimeStr != null) {
            long responseTimeNanos = currTime - Long.parseLong(startTimeStr);
            collector.event(LATENCY_METRIC_NAME, responseTimeNanos);
        }
    } catch (Throwable e) {
        LOG.error("Got exception while getting collector", e);
    }
}

Example 2 with MetricsContext

use of io.cdap.cdap.api.metrics.MetricsContext in project cdap by caskdata.

the class ServiceHttpServer method createDelegatorContexts.

@Override
protected List<HandlerDelegatorContext> createDelegatorContexts() throws Exception {
    // Constructs all handler delegator. It is for bridging ServiceHttpHandler and HttpHandler (in netty-http).
    List<HandlerDelegatorContext> delegatorContexts = new ArrayList<>();
    InstantiatorFactory instantiatorFactory = new InstantiatorFactory(false);
    for (HttpServiceHandlerSpecification handlerSpec : serviceSpecification.getHandlers().values()) {
        Class<?> handlerClass = getProgram().getClassLoader().loadClass(handlerSpec.getClassName());
        @SuppressWarnings("unchecked") TypeToken<HttpServiceHandler> type = TypeToken.of((Class<HttpServiceHandler>) handlerClass);
        MetricsContext metrics = httpServiceContext.getProgramMetrics().childContext(BasicHttpServiceContext.createMetricsTags(handlerSpec, getInstanceId()));
        delegatorContexts.add(new HandlerDelegatorContext(type, instantiatorFactory, handlerSpec, contextFactory, metrics));
    }
    return delegatorContexts;
}

Example 3 with MetricsContext

use of io.cdap.cdap.api.metrics.MetricsContext in project cdap by caskdata.

the class MetricsReporterHookTest method testReponseTimeCollection.

@Test
public void testReponseTimeCollection() throws InterruptedException {
    MetricsContext mockCollector = mock(MetricsContext.class);
    MetricsCollectionService mockCollectionService = mock(MetricsCollectionService.class);
    when(mockCollectionService.getContext(anyMap())).thenReturn(mockCollector);
    HttpRequest request = new DefaultHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "http://ignore");
    HandlerInfo handlerInfo = new HandlerInfo(TESTHANDLERNAME, TESTMETHODNAME);
    MetricsReporterHook hook = new MetricsReporterHook(mockCollectionService, TESTSERVICENAME);
    hook.preCall(request, null, handlerInfo);
    hook.postCall(request, HttpResponseStatus.OK, handlerInfo);
    verify(mockCollector).event(eq("response.latency"), anyLong());
}

Example 4 with MetricsContext

use of io.cdap.cdap.api.metrics.MetricsContext in project cdap by caskdata.

the class ProgramNotificationSubscriberService method emitStartingTimeMetric.

private void emitStartingTimeMetric(ProgramRunId programRunId, long startDelayTime) {
    Map<String, String> tags = Collections.emptyMap();
    MetricsContext metricsContext = ProgramRunners.createProgramMetricsContext(programRunId, tags, metricsCollectionService);
    metricsContext.gauge(Constants.Metrics.Program.PROGRAM_STARTING_DELAY_SECONDS, startDelayTime);
}

Example 5 with MetricsContext

use of io.cdap.cdap.api.metrics.MetricsContext in project cdap by caskdata.

the class HttpHandlerGenerator method generateConstructor.

/**
 * Generates the constructor. The constructor generated has signature {@code (DelegatorContext, MetricsContext)}.
 */
private void generateConstructor(TypeToken<?> delegateType, ClassWriter classWriter) {
    Method constructor = Methods.getMethod(void.class, "<init>", DelegatorContext.class, MetricsContext.class);
    String signature = Signatures.getMethodSignature(constructor, TypeToken.of(void.class), getContextType(delegateType), TypeToken.of(MetricsContext.class));
    // Constructor(DelegatorContext, MetricsContext)
    GeneratorAdapter mg = new GeneratorAdapter(Opcodes.ACC_PUBLIC, constructor, signature, null, classWriter);
    // super(context, metricsContext);
    mg.loadThis();
    mg.loadArg(0);
    mg.loadArg(1);
    mg.invokeConstructor(Type.getType(AbstractHttpHandlerDelegator.class), Methods.getMethod(void.class, "<init>", DelegatorContext.class, MetricsContext.class));
    mg.returnValue();
    mg.endMethod();
}