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https://issues.apache.org/jira/browse/PROTON-2487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17577920#comment-17577920
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ASF GitHub Bot commented on PROTON-2487:
----------------------------------------
DreamPearl commented on code in PR #355:
URL: https://github.com/apache/qpid-proton/pull/355#discussion_r942307429
##########
cpp/examples/tracing_client.cpp:
##########
@@ -0,0 +1,166 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+#include "options.hpp"
+#include <proton/connection.hpp>
+#include <proton/container.hpp>
+#include <proton/delivery.hpp>
+#include <proton/message.hpp>
+#include <proton/messaging_handler.hpp>
+#include <proton/receiver_options.hpp>
+#include <proton/source_options.hpp>
+#include <proton/tracing.hpp>
+#include <proton/tracker.hpp>
+
+#include <iostream>
+#include <vector>
+
+#include <opentelemetry/sdk/trace/simple_processor.h>
+#include <opentelemetry/sdk/trace/tracer_provider.h>
+#include <opentelemetry/trace/provider.h>
+#include <opentelemetry/nostd/unique_ptr.h>
+#include <opentelemetry/exporters/jaeger/jaeger_exporter.h>
+#include <opentelemetry/exporters/ostream/span_exporter.h>
+#include <opentelemetry/sdk/resource/resource.h>
+
+#include <opentelemetry/trace/span.h>
+#include <opentelemetry/trace/tracer.h>
+#include <opentelemetry/trace/context.h>
+
+using proton::receiver_options;
+using proton::source_options;
+opentelemetry::nostd::shared_ptr<opentelemetry::trace::TracerProvider>
provider;
+
+class client : public proton::messaging_handler {
+ private:
+ std::string url;
+ std::vector<std::string> requests;
+ proton::sender sender;
+ proton::receiver receiver;
+
+ public:
+ client(const std::string &u, const std::vector<std::string>& r) : url(u),
requests(r) {}
+
+ void on_container_start(proton::container &c) override {
+ sender = c.open_sender(url);
+ // Create a receiver requesting a dynamically created queue
+ // for the message source.
+ receiver_options opts =
receiver_options().source(source_options().dynamic(true));
+ receiver = sender.connection().open_receiver("", opts);
+ }
+
+ void send_request() {
+ proton::message req;
+ req.body(requests.front());
+ req.reply_to(receiver.source().address());
+
+ opentelemetry::nostd::shared_ptr<opentelemetry::trace::Tracer> tracer
= provider->GetTracer("qpid-tracer", OPENTELEMETRY_SDK_VERSION);
+ opentelemetry::nostd::shared_ptr<opentelemetry::trace::Span> span_a =
tracer->StartSpan("client-before-send",
+ {{"Delivery_tag", "delivery_tag"}, {"Destination_address",
"t_addr"}});
+
+ opentelemetry::trace::Scope scope_a = tracer->WithActiveSpan(span_a);
+
+ sender.send(req);
+
+ opentelemetry::nostd::shared_ptr<opentelemetry::trace::Span> span_b =
tracer->StartSpan("client-after-send",
+ {{"Delivery_tag", "delivery_tag"}, {"Destination_address",
"t_addr"}});
+
+ opentelemetry::trace::Scope scope_b = tracer->WithActiveSpan(span_b);
+ }
+
+ void on_receiver_open(proton::receiver &) override {
+ send_request();
+ }
+
+ void on_message(proton::delivery &d, proton::message &response) override {
+ if (requests.empty()) return; // Spurious extra message!
+
+ opentelemetry::nostd::shared_ptr<opentelemetry::trace::Tracer> tracer
= provider->GetTracer("qpid-tracer", OPENTELEMETRY_SDK_VERSION);
+ opentelemetry::nostd::shared_ptr<opentelemetry::trace::Span> s =
tracer->StartSpan("Testing-CLIENT-ONMESSAGE",
+ {{"Delivery_tag", "delivery_tag"}, {"Destination_address",
"t_addr"}});
+
+ opentelemetry::trace::Scope sc = tracer->WithActiveSpan(s);
+
+ std::cout << requests.front() << " => " << response.body() <<
std::endl;
+ requests.erase(requests.begin());
+
+ if (!requests.empty()) {
+ send_request();
+ } else {
+ d.connection().close();
+ }
+ }
+};
+
+int main(int argc, char **argv) {
+ std::string url("127.0.0.1:5672/examples");
+ std::string t;
+ example::options opts(argc, argv);
+
+ opts.add_value(url, 'a', "address", "connect and send to URL", "URL");
+ opts.add_value(t, 't', "tracing", "enable tracing", "TRACING");
+
+ try {
+ opts.parse();
+
+ opentelemetry::exporter::jaeger::JaegerExporterOptions opts;
+
+ // Initialize Jaeger Exporter
+ std::unique_ptr<opentelemetry::sdk::trace::SpanExporter> exporter =
std::unique_ptr<opentelemetry::sdk::trace::SpanExporter>(
+ new opentelemetry::exporter::jaeger::JaegerExporter(opts));
+
+ auto resource_attributes =
opentelemetry::sdk::resource::ResourceAttributes
+ {
+ {"service.name", "qpid-client"}
+ };
+
+ auto resource =
opentelemetry::sdk::resource::Resource::Create(resource_attributes);
+
+ auto processor =
std::unique_ptr<opentelemetry::sdk::trace::SpanProcessor>(
+ new
opentelemetry::sdk::trace::SimpleSpanProcessor(std::move(exporter)));
+ provider =
opentelemetry::nostd::shared_ptr<opentelemetry::trace::TracerProvider>(
+ new
opentelemetry::sdk::trace::TracerProvider(std::move(processor), resource));
+
+ // Set the global trace provider
+ opentelemetry::trace::Provider::SetTracerProvider(provider);
+
+ // Enable tracing in proton cpp
+ if (t == "tracing")
+ proton::initOpenTelemetryTracer();
+
Review Comment:
The new approach to enable tracing.
> [cpp] Implement distributed tracing
> -----------------------------------
>
> Key: PROTON-2487
> URL: https://issues.apache.org/jira/browse/PROTON-2487
> Project: Qpid Proton
> Issue Type: New Feature
> Components: cpp-binding
> Affects Versions: proton-c-0.37.0
> Reporter: Rakhi Kumari
> Assignee: Rakhi Kumari
> Priority: Major
> Fix For: proton-c-0.38.0
>
>
> Implement distributed tracing using opentelemetry.
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