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

Example 6 with Scope

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

the class TracerTest method startSpanWithInvalidParentFromContext.

@Test
public void startSpanWithInvalidParentFromContext() {
    Scope ws = tracer.withSpan(BlankSpan.INSTANCE);
    try {
        assertThat(tracer.getCurrentSpan()).isSameInstanceAs(BlankSpan.INSTANCE);
        when(tracer.spanBuilderWithExplicitParent(same(SPAN_NAME), same(BlankSpan.INSTANCE))).thenReturn(spanBuilder);
        assertThat(tracer.spanBuilder(SPAN_NAME)).isSameInstanceAs(spanBuilder);
    } finally {
        ws.close();
    }
}

Example 7 with Scope

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

the class TracerTest method startSpanWithParentFromContext.

@Test
public void startSpanWithParentFromContext() {
    Scope ws = tracer.withSpan(span);
    try {
        assertThat(tracer.getCurrentSpan()).isSameInstanceAs(span);
        when(tracer.spanBuilderWithExplicitParent(same(SPAN_NAME), same(span))).thenReturn(spanBuilder);
        assertThat(tracer.spanBuilder(SPAN_NAME)).isSameInstanceAs(spanBuilder);
    } finally {
        ws.close();
    }
}

Example 8 with Scope

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

the class MetricReader method readAndExport.

/**
 * Reads the metrics from the {@link MetricProducerManager} and exports them to the {@code
 * metricExporter}.
 *
 * @param metricExporter the exporter called to export the metrics read.
 * @since 0.19
 */
public void readAndExport(MetricExporter metricExporter) {
    Span span = tracer.spanBuilder(spanName).setRecordEvents(true).setSampler(probabilitySampler).startSpan();
    Scope scope = tracer.withSpan(span);
    try {
        ArrayList<Metric> metricsList = new ArrayList<>();
        for (MetricProducer metricProducer : metricProducerManager.getAllMetricProducer()) {
            metricsList.addAll(metricProducer.getMetrics());
        }
        metricExporter.export(metricsList);
    } catch (Throwable e) {
        logger.log(Level.WARNING, "Exception thrown by the metrics exporter.", e);
        span.setStatus(Status.UNKNOWN.withDescription("Exception when export metrics: " + exceptionMessage(e)));
    } finally {
        scope.close();
        span.end();
    }
}

Example 9 with Scope

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

the class HelloWorldServer method performWork.

// A helper function that performs some work in its own Span.
private static void performWork(Span parent) {
    SpanBuilder spanBuilder = tracer.spanBuilderWithExplicitParent("internal_work", parent).setRecordEvents(true);
    try (Scope scope = spanBuilder.startScopedSpan()) {
        Span span = tracer.getCurrentSpan();
        span.putAttribute("my_attribute", AttributeValue.stringAttributeValue("blue"));
        span.addAnnotation("Performing work.");
        // Working hard here.
        sleepFor(20);
        span.addAnnotation("Done work.");
    }
}

Example 10 with Scope

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

the class TagContextExample method main.

/**
 * Main method.
 *
 * @param args the main arguments.
 */
public static void main(String[] args) {
    System.out.println("Hello Stats World");
    System.out.println("Default Tags: " + tagger.empty());
    System.out.println("Current Tags: " + tagger.getCurrentTagContext());
    TagContext tags1 = tagger.emptyBuilder().put(K1, V1).put(K2, V2).build();
    try (Scope scopedTagCtx1 = tagger.withTagContext(tags1)) {
        System.out.println("  Current Tags: " + tagger.getCurrentTagContext());
        System.out.println("  Current == Default + tags1: " + tagger.getCurrentTagContext().equals(tags1));
        TagContext tags2 = tagger.toBuilder(tags1).put(K3, V3).put(K4, V4).build();
        try (Scope scopedTagCtx2 = tagger.withTagContext(tags2)) {
            System.out.println("    Current Tags: " + tagger.getCurrentTagContext());
            System.out.println("    Current == Default + tags1 + tags2: " + tagger.getCurrentTagContext().equals(tags2));
            statsRecorder.newMeasureMap().put(M1, 0.2).put(M2, 0.4).record();
        }
    }
    System.out.println("Current == Default: " + tagger.getCurrentTagContext().equals(tagger.empty()));
}