mirror of https://github.com/grpc/grpc.git
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
115 lines
3.8 KiB
115 lines
3.8 KiB
/* |
|
* |
|
* Copyright 2015, Google Inc. |
|
* All rights reserved. |
|
* |
|
* Redistribution and use in source and binary forms, with or without |
|
* modification, are permitted provided that the following conditions are |
|
* met: |
|
* |
|
* * Redistributions of source code must retain the above copyright |
|
* notice, this list of conditions and the following disclaimer. |
|
* * Redistributions in binary form must reproduce the above |
|
* copyright notice, this list of conditions and the following disclaimer |
|
* in the documentation and/or other materials provided with the |
|
* distribution. |
|
* * Neither the name of Google Inc. nor the names of its |
|
* contributors may be used to endorse or promote products derived from |
|
* this software without specific prior written permission. |
|
* |
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
* |
|
*/ |
|
|
|
#include <grpc++/client_context.h> |
|
|
|
#include "examples/pubsub/subscriber.h" |
|
|
|
using tech::pubsub::Topic; |
|
using tech::pubsub::DeleteTopicRequest; |
|
using tech::pubsub::GetTopicRequest; |
|
using tech::pubsub::SubscriberService; |
|
using tech::pubsub::ListTopicsRequest; |
|
using tech::pubsub::ListTopicsResponse; |
|
using tech::pubsub::PublishRequest; |
|
using tech::pubsub::PubsubMessage; |
|
|
|
namespace grpc { |
|
namespace examples { |
|
namespace pubsub { |
|
|
|
Subscriber::Subscriber(std::shared_ptr<ChannelInterface> channel) |
|
: stub_(SubscriberService::NewStub(channel)) {} |
|
|
|
void Subscriber::Shutdown() { stub_.reset(); } |
|
|
|
Status Subscriber::CreateSubscription(const grpc::string& topic, |
|
const grpc::string& name) { |
|
tech::pubsub::Subscription request; |
|
tech::pubsub::Subscription response; |
|
ClientContext context; |
|
|
|
request.set_topic(topic); |
|
request.set_name(name); |
|
|
|
return stub_->CreateSubscription(&context, request, &response); |
|
} |
|
|
|
Status Subscriber::GetSubscription(const grpc::string& name, |
|
grpc::string* topic) { |
|
tech::pubsub::GetSubscriptionRequest request; |
|
tech::pubsub::Subscription response; |
|
ClientContext context; |
|
|
|
request.set_subscription(name); |
|
|
|
Status s = stub_->GetSubscription(&context, request, &response); |
|
*topic = response.topic(); |
|
return s; |
|
} |
|
|
|
Status Subscriber::DeleteSubscription(const grpc::string& name) { |
|
tech::pubsub::DeleteSubscriptionRequest request; |
|
proto2::Empty response; |
|
ClientContext context; |
|
|
|
request.set_subscription(name); |
|
|
|
return stub_->DeleteSubscription(&context, request, &response); |
|
} |
|
|
|
Status Subscriber::Pull(const grpc::string& name, grpc::string* data) { |
|
tech::pubsub::PullRequest request; |
|
tech::pubsub::PullResponse response; |
|
ClientContext context; |
|
|
|
request.set_subscription(name); |
|
Status s = stub_->Pull(&context, request, &response); |
|
if (s.IsOk()) { |
|
tech::pubsub::PubsubEvent event = response.pubsub_event(); |
|
if (event.has_message()) { |
|
*data = event.message().data(); |
|
} |
|
tech::pubsub::AcknowledgeRequest ack; |
|
proto2::Empty empty; |
|
ClientContext ack_context; |
|
ack.set_subscription(name); |
|
ack.add_ack_id(response.ack_id()); |
|
stub_->Acknowledge(&ack_context, ack, &empty); |
|
} |
|
return s; |
|
} |
|
|
|
} // namespace pubsub |
|
} // namespace examples |
|
} // namespace grpc
|
|
|