use of io.opencensus.common.Scope in project instrumentation-java by census-instrumentation.
the class OcAgentTraceExporterIntegrationTest method testExportSpans.
@Test
public void testExportSpans() throws InterruptedException, IOException {
// Mock a real-life scenario in production, where Agent is not enabled at first, then enabled
// after an outage. Users should be able to see traces shortly after Agent is up.
// Configure to be always-sampled.
TraceConfig traceConfig = Tracing.getTraceConfig();
TraceParams activeTraceParams = traceConfig.getActiveTraceParams();
traceConfig.updateActiveTraceParams(activeTraceParams.toBuilder().setSampler(Samplers.alwaysSample()).build());
// Register the OcAgent Exporter first.
// Agent is not yet up and running so Exporter will just retry connection.
OcAgentTraceExporter.createAndRegister(OcAgentTraceExporterConfiguration.builder().setServiceName(SERVICE_NAME).setUseInsecure(true).setEnableConfig(false).build());
// Create one root span and 5 children.
try (Scope scope = tracer.spanBuilder("root").startScopedSpan()) {
for (int i = 0; i < 5; i++) {
// Fake work
doWork("first-iteration-child-" + i, i);
}
}
// Wait 5s so that SpanExporter exports exports all spans.
Thread.sleep(5000);
// No interaction with Agent so far.
assertThat(fakeOcAgentTraceServiceGrpc.getExportTraceServiceRequests()).isEmpty();
// Image an outage happened, now start Agent. Exporter should be able to connect to Agent
// when the next batch of SpanData arrives.
agent.start();
// Create one root span and 8 children.
try (Scope scope = tracer.spanBuilder("root2").startScopedSpan()) {
for (int i = 0; i < 8; i++) {
// Fake work
doWork("second-iteration-child-" + i, i);
}
}
// Wait 5s so that SpanExporter exports exports all spans.
Thread.sleep(5000);
List<ExportTraceServiceRequest> exportRequests = fakeOcAgentTraceServiceGrpc.getExportTraceServiceRequests();
assertThat(exportRequests.size()).isAtLeast(2);
ExportTraceServiceRequest firstRequest = exportRequests.get(0);
Node expectedNode = OcAgentNodeUtils.getNodeInfo(SERVICE_NAME);
Node actualNode = firstRequest.getNode();
assertThat(actualNode.getIdentifier().getHostName()).isEqualTo(expectedNode.getIdentifier().getHostName());
assertThat(actualNode.getIdentifier().getPid()).isEqualTo(expectedNode.getIdentifier().getPid());
assertThat(actualNode.getLibraryInfo()).isEqualTo(expectedNode.getLibraryInfo());
assertThat(actualNode.getServiceInfo()).isEqualTo(expectedNode.getServiceInfo());
List<io.opencensus.proto.trace.v1.Span> spanProtos = new ArrayList<>();
for (int i = 1; i < exportRequests.size(); i++) {
spanProtos.addAll(exportRequests.get(i).getSpansList());
}
// On some platforms (e.g Windows) SpanData will never be dropped, so spans from the first batch
// may also be exported after Agent is up.
assertThat(spanProtos.size()).isAtLeast(9);
Set<String> exportedSpanNames = new HashSet<>();
for (io.opencensus.proto.trace.v1.Span spanProto : spanProtos) {
if ("root2".equals(spanProto.getName().getValue())) {
assertThat(spanProto.getChildSpanCount().getValue()).isEqualTo(8);
assertThat(spanProto.getParentSpanId()).isEqualTo(ByteString.EMPTY);
} else if ("root".equals(spanProto.getName().getValue())) {
// This won't happen on Linux but does happen on Windows.
assertThat(spanProto.getChildSpanCount().getValue()).isEqualTo(5);
assertThat(spanProto.getParentSpanId()).isEqualTo(ByteString.EMPTY);
}
exportedSpanNames.add(spanProto.getName().getValue());
}
// The second batch of spans should be exported no matter what.
assertThat(exportedSpanNames).contains("root2");
for (int i = 0; i < 8; i++) {
assertThat(exportedSpanNames).contains("second-iteration-child-" + i);
}
}
use of io.opencensus.common.Scope in project instrumentation-java by census-instrumentation.
the class OcAgentTraceExporterIntegrationTest method doWork.
private void doWork(String spanName, int i) {
try (Scope scope = tracer.spanBuilder(spanName).startScopedSpan()) {
// Simulate some work.
Span span = tracer.getCurrentSpan();
try {
Thread.sleep(10L);
} catch (InterruptedException e) {
span.setStatus(Status.INTERNAL.withDescription(e.toString()));
}
Map<String, AttributeValue> attributes = new HashMap<String, AttributeValue>();
attributes.put("inner work iteration number", AttributeValue.longAttributeValue(i));
span.addAnnotation("Invoking doWork", attributes);
}
}
use of io.opencensus.common.Scope in project instrumentation-java by census-instrumentation.
the class ZPageHttpHandler method handle.
@Override
public final void handle(HttpExchange httpExchange) throws IOException {
Span span = tracer.spanBuilderWithExplicitParent(httpServerSpanName, null).setRecordEvents(true).startSpan();
try (Scope ss = tracer.withSpan(span)) {
span.putAttribute("/http/method ", AttributeValue.stringAttributeValue(httpExchange.getRequestMethod()));
httpExchange.sendResponseHeaders(200, 0);
zpageHandler.emitHtml(uriQueryToMap(httpExchange.getRequestURI()), httpExchange.getResponseBody());
} finally {
httpExchange.close();
span.end(END_SPAN_OPTIONS);
}
}
use of io.opencensus.common.Scope in project instrumentation-java by census-instrumentation.
the class TracingAsyncClientHttpRequestInterceptor method intercept.
/**
* It intercepts http requests and starts a span.
*
* @since 0.23.0
*/
public ListenableFuture<ClientHttpResponse> intercept(HttpRequest request, byte[] body, org.springframework.http.client.AsyncClientHttpRequestExecution execution) throws IOException {
HttpRequestContext context = handler.handleStart(tracer.getCurrentSpan(), request, request);
Scope ws = tracer.withSpan(handler.getSpanFromContext(context));
try {
ListenableFuture<ClientHttpResponse> result = execution.executeAsync(request, body);
result.addCallback(new TracingAsyncClientHttpRequestInterceptor.TraceListenableFutureCallback(context, handler));
return result;
} catch (IOException e) {
handler.handleEnd(context, null, null, e);
throw e;
} finally {
if (ws != null) {
ws.close();
}
}
}
use of io.opencensus.common.Scope in project instrumentation-java by census-instrumentation.
the class HttpClientHandlerTest method handleStartShouldCreateChildSpanInCurrentContext.
@Test
public void handleStartShouldCreateChildSpanInCurrentContext() {
Scope scope = tracer.withSpan(parentSpan);
try {
HttpRequestContext context = handler.handleStart(null, carrier, request);
verify(tracer).spanBuilderWithExplicitParent(any(String.class), same(parentSpan));
assertThat(context.span).isEqualTo(childSpan);
} finally {
scope.close();
}
}
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