Examples with Scope io.opencensus.common.Scope used on opensource projects

Example 31 with Scope

use of io.opencensus.common.Scope in project instrumentation-java by census-instrumentation.

the class OcAgentExportersQuickStart method main.

/**
 * Main launcher of the example.
 */
public static void main(String[] args) throws InterruptedException {
    // Always sample for demo purpose. DO NOT use in production.
    configureAlwaysSample();
    registerAllViews();
    LongGauge gauge = registerGauge();
    String endPoint = getStringOrDefaultFromArgs(args, 0, DEFAULT_ENDPOINT);
    registerAgentExporters(endPoint);
    try (Scope scope = tracer.spanBuilder("root").startScopedSpan()) {
        int iteration = 1;
        while (true) {
            doWork(iteration, random.nextInt(10), gauge);
            iteration++;
            Thread.sleep(5000);
        }
    } catch (InterruptedException e) {
        logger.info("Thread interrupted, exiting in 5 seconds.");
        // Wait 5s so that last batch will be exported.
        Thread.sleep(5000);
    }
}

Example 32 with Scope

use of io.opencensus.common.Scope in project instrumentation-java by census-instrumentation.

the class OcAgentExportersQuickStart method doWork.

private static void doWork(int iteration, int jobs, LongGauge gauge) {
    String childSpanName = "iteration-" + iteration;
    LabelValue value = LabelValue.create(childSpanName);
    LongPoint point = gauge.getOrCreateTimeSeries(Collections.singletonList(value));
    try (Scope scope = tracer.spanBuilder(childSpanName).startScopedSpan()) {
        for (int i = 0; i < jobs; i++) {
            String grandChildSpanName = childSpanName + "-job-" + i;
            try (Scope childScope = tracer.spanBuilder(grandChildSpanName).startScopedSpan()) {
                point.set(jobs - i);
                String line = generateRandom(random.nextInt(128));
                processLine(line);
                recordStat(M_LINES_IN, 1L);
                recordStat(M_LINE_LENGTHS, (long) line.length());
            } catch (Exception e) {
                tracer.getCurrentSpan().setStatus(Status.INTERNAL.withDescription(e.toString()));
            }
        }
    }
}

Example 33 with Scope

use of io.opencensus.common.Scope in project instrumentation-java by census-instrumentation.

the class MultiSpansContextTracing method doSomeMoreWork.

private static void doSomeMoreWork() {
    // Create a child Span of the current Span.
    Span span = tracer.spanBuilder("MyChildSpan").startSpan();
    try (Scope ws = tracer.withSpan(span)) {
        doSomeOtherWork();
    }
    span.end();
}

Example 34 with Scope

use of io.opencensus.common.Scope in project instrumentation-java by census-instrumentation.

the class MultiSpansContextTracing method main.

/**
 * Main method.
 *
 * @param args the main arguments.
 */
public static void main(String[] args) {
    // WARNING: Be careful before you set sampler value to always sample, especially in
    // production environment. Trace data is often very large in size and is expensive to
    // collect. This is why rather than collecting traces for every request(i.e. alwaysSample),
    // downsampling is prefered.
    // 
    // By default, OpenCensus provides a probabilistic sampler that will trace once in every
    // 10,000 requests, that's why if default probabilistic sampler is used
    // you might not see trace data printed or exported and this is expected behavior.
    TraceConfig traceConfig = Tracing.getTraceConfig();
    traceConfig.updateActiveTraceParams(traceConfig.getActiveTraceParams().toBuilder().setSampler(Samplers.alwaysSample()).build());
    LoggingTraceExporter.register();
    Span span = tracer.spanBuilderWithExplicitParent("MyRootSpan", null).startSpan();
    try (Scope ws = tracer.withSpan(span)) {
        doWork();
    }
    span.end();
    // Wait for a duration longer than reporting duration (5s) to ensure spans are exported.
    // Spans are exported every 5 seconds
    sleep(5100);
}

Example 35 with Scope

use of io.opencensus.common.Scope in project instrumentation-java by census-instrumentation.

the class ZPagesTester method recordExampleData.

private static void recordExampleData() throws InterruptedException {
    Tracing.getExportComponent().getSampledSpanStore().registerSpanNamesForCollection(Collections.singletonList(SPAN_NAME));
    // Use old RPC constants to get interval stats.
    RpcViews.registerAllViews();
    SpanBuilder spanBuilder = tracer.spanBuilder(SPAN_NAME).setRecordEvents(true).setSampler(Samplers.alwaysSample());
    try (Scope scope = spanBuilder.startScopedSpan()) {
        tracer.getCurrentSpan().addAnnotation("Starts recording.");
        MeasureMap measureMap = statsRecorder.newMeasureMap().put(RpcMeasureConstants.RPC_CLIENT_STARTED_COUNT, 1).put(RpcMeasureConstants.RPC_CLIENT_FINISHED_COUNT, 1).put(RpcMeasureConstants.RPC_CLIENT_ROUNDTRIP_LATENCY, 1.0).put(RpcMeasureConstants.RPC_CLIENT_REQUEST_COUNT, 1).put(RpcMeasureConstants.RPC_CLIENT_RESPONSE_COUNT, 1).put(RpcMeasureConstants.RPC_CLIENT_REQUEST_BYTES, 1e5).put(RpcMeasureConstants.RPC_CLIENT_RESPONSE_BYTES, 1e5).put(RpcMeasureConstants.RPC_CLIENT_UNCOMPRESSED_REQUEST_BYTES, 1e5).put(RpcMeasureConstants.RPC_CLIENT_UNCOMPRESSED_RESPONSE_BYTES, 1e5).put(RpcMeasureConstants.RPC_SERVER_STARTED_COUNT, 1).put(RpcMeasureConstants.RPC_SERVER_FINISHED_COUNT, 1).put(RpcMeasureConstants.RPC_SERVER_SERVER_LATENCY, 1.0).put(RpcMeasureConstants.RPC_SERVER_REQUEST_COUNT, 1).put(RpcMeasureConstants.RPC_SERVER_RESPONSE_COUNT, 1).put(RpcMeasureConstants.RPC_SERVER_REQUEST_BYTES, 1e5).put(RpcMeasureConstants.RPC_SERVER_RESPONSE_BYTES, 1e5).put(RpcMeasureConstants.RPC_SERVER_UNCOMPRESSED_REQUEST_BYTES, 1e5).put(RpcMeasureConstants.RPC_SERVER_UNCOMPRESSED_RESPONSE_BYTES, 1e5);
        measureMap.record(tagger.currentBuilder().put(RpcMeasureConstants.RPC_STATUS, TagValue.create("OK")).put(RpcMeasureConstants.RPC_METHOD, METHOD).build());
        MeasureMap measureMapErrors = statsRecorder.newMeasureMap().put(RpcMeasureConstants.RPC_CLIENT_ERROR_COUNT, 1).put(RpcMeasureConstants.RPC_SERVER_ERROR_COUNT, 1);
        measureMapErrors.record(tagger.currentBuilder().put(RpcMeasureConstants.RPC_STATUS, TagValue.create("UNKNOWN")).put(RpcMeasureConstants.RPC_METHOD, METHOD).build());
        // sleep for fake work.
        Thread.sleep(200);
        tracer.getCurrentSpan().addAnnotation("Finish recording.");
    }
}