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/*
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*
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* Copyright 2014, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <grpc++/client_context.h>
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#include "examples/tips/subscriber.h"
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using tech::pubsub::Topic;
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using tech::pubsub::DeleteTopicRequest;
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using tech::pubsub::GetTopicRequest;
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using tech::pubsub::SubscriberService;
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using tech::pubsub::ListTopicsRequest;
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using tech::pubsub::ListTopicsResponse;
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using tech::pubsub::PublishRequest;
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using tech::pubsub::PubsubMessage;
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namespace grpc {
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namespace examples {
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namespace tips {
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Subscriber::Subscriber(std::shared_ptr<ChannelInterface> channel)
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: stub_(SubscriberService::NewStub(channel)) {
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}
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void Subscriber::Shutdown() {
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stub_.reset();
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}
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Status Subscriber::CreateSubscription(const grpc::string& topic,
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const grpc::string& name) {
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tech::pubsub::Subscription request;
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tech::pubsub::Subscription response;
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ClientContext context;
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request.set_topic(topic);
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request.set_name(name);
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return stub_->CreateSubscription(&context, request, &response);
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}
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Status Subscriber::GetSubscription(const grpc::string& name,
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grpc::string* topic) {
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tech::pubsub::GetSubscriptionRequest request;
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tech::pubsub::Subscription response;
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ClientContext context;
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request.set_subscription(name);
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Status s = stub_->GetSubscription(&context, request, &response);
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*topic = response.topic();
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return s;
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}
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Status Subscriber::DeleteSubscription(const grpc::string& name) {
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tech::pubsub::DeleteSubscriptionRequest request;
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proto2::Empty response;
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ClientContext context;
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request.set_subscription(name);
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return stub_->DeleteSubscription(&context, request, &response);
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}
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Status Subscriber::Pull(const grpc::string& name, grpc::string* data) {
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tech::pubsub::PullRequest request;
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tech::pubsub::PullResponse response;
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ClientContext context;
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request.set_subscription(name);
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Status s = stub_->Pull(&context, request, &response);
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if (s.IsOk()) {
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tech::pubsub::PubsubEvent event = response.pubsub_event();
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if (event.has_message()) {
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*data = event.message().data();
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}
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tech::pubsub::AcknowledgeRequest ack;
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proto2::Empty empty;
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ClientContext ack_context;
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ack.set_subscription(name);
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ack.add_ack_id(response.ack_id());
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stub_->Acknowledge(&ack_context, ack, &empty);
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}
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return s;
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}
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} // namespace tips
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} // namespace examples
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} // namespace grpc
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