memgraph/experimental/distributed/tests/network_chat.cpp
Goran Zuzic 7f1c7a46cc Distributed tests
Summary:
1. added distributed tests, currently only one can be run (TODO)
2. usability changes: add Close() to Subscription
3. EventStream::Subscription -> Subscription
4. Add Subscription to ChainOnce
5. Added README.md conventions5

Reviewers: sasa.stanko

Reviewed By: sasa.stanko

Subscribers: pullbot, buda

Differential Revision: https://phabricator.memgraph.io/D701
2017-08-24 10:33:48 +02:00

103 lines
2.9 KiB
C++

// command to run:
// gnome-terminal --tab -e './network_chat --port 10000 --minloglevel 2' --tab -e './network_chat --port 10001 --minloglevel 2'
#include "reactors_distributed.hpp"
class ChatMessage : public ReturnAddressMsg {
public:
ChatMessage() : ReturnAddressMsg(), message_("") {}
ChatMessage(std::string reactor, std::string channel, std::string message)
: ReturnAddressMsg(reactor, channel), message_(message) {}
std::string Message() const { return message_; }
template <class Archive>
void serialize(Archive &ar) {
ar(cereal::base_class<ReturnAddressMsg>(this), message_);
}
private:
std::string message_;
};
CEREAL_REGISTER_TYPE(ChatMessage);
class ChatACK : public ChatMessage {
public:
ChatACK() : ChatMessage() {}
ChatACK(std::string reactor, std::string channel, std::string message)
: ChatMessage(reactor, channel, message) {}
template <class Archive>
void serialize(Archive &ar) {
ar(cereal::base_class<ChatMessage>(this));
}
};
CEREAL_REGISTER_TYPE(ChatACK);
class ChatServer : public Reactor {
public:
ChatServer(std::string name)
: Reactor(name) {}
virtual void Run() {
std::cout << "ChatServer is active" << std::endl;
auto chat = Open("chat").first;
chat->OnEvent<ChatACK>([](const ChatACK& ack, const Subscription&) {
std::cout << "Received ACK from " << ack.Address() << ":"
<< ack.Port() << " -> '" << ack.Message() << "'"
<< std::endl;
});
chat->OnEvent<ChatMessage>([this](const ChatMessage& msg, const Subscription&) {
std::cout << "Received message from " << msg.Address() << ":"
<< msg.Port() << " -> '" << msg.Message() << "'"
<< std::endl;
auto channel = msg.GetReturnChannelWriter();
if (channel != nullptr) {
channel->Send<ChatACK>("server", "chat", msg.Message());
}
});
}
};
class ChatClient : public Reactor {
public:
ChatClient(std::string name)
: Reactor(name) {}
virtual void Run() {
std::cout << "ChatClient is active" << std::endl;
std::string address, message;
uint16_t port;
while (true) {
std::cout << "Enter IP, port and message to send." << std::endl;
std::cin >> address >> port >> message;
auto channel =
Distributed::GetInstance().network().Resolve(address, port, "server", "chat");
if (channel != nullptr) {
channel->Send<ChatMessage>("server", "chat", message);
} else {
std::cerr << "Couldn't resolve that server!" << std::endl;
}
}
}
};
int main(int argc, char *argv[]) {
gflags::ParseCommandLineFlags(&argc, &argv, true);
System& system = System::GetInstance();
Distributed &distributed = Distributed::GetInstance();
distributed.StartServices();
system.Spawn<ChatServer>("server");
system.Spawn<ChatClient>("client");
system.AwaitShutdown();
distributed.StopServices();
return 0;
}