in client/src/main/java/com/google/cloud/solutions/opencensus/client/TestInstrumentation.java [127:138]
static void initTracing() {
TraceConfig traceConfig = Tracing.getTraceConfig();
TraceParams activeTraceParams = traceConfig.getActiveTraceParams();
traceConfig.updateActiveTraceParams(
activeTraceParams.toBuilder().setSampler(Samplers.alwaysSample()).build());
try {
StackdriverTraceExporter.createAndRegister(StackdriverTraceConfiguration.builder().build());
LOGGER.info("Tracing initialized with: " + traceConfig.getActiveTraceParams().getSampler());
} catch (IOException e) {
LOGGER.log(Level.WARNING, "Not able to initialize tracing", e);
}
}