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/*
* Copyright 2018-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0/
*
* or in the "license" file accompanying this file. This file 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.
*/
#ifndef VSHL_CAPABILITIES_CORE_SUBSCRIBERFORWARDER_H_
#define VSHL_CAPABILITIES_CORE_SUBSCRIBERFORWARDER_H_
#include <memory>
#include <string>
#include <unordered_map>
#include "interfaces/afb/IAFBApi.h"
#include "interfaces/capabilities/ICapability.h"
#include "interfaces/utilities/logging/ILogger.h"
using namespace std;
namespace vshl {
namespace capabilities {
namespace core {
/*
* This class is responsible for forwarding the messages publishing
* to the actual clients using AFB.
*/
class SubscriberForwarder {
public:
// Create a SubscriberForwarder.
static std::shared_ptr<SubscriberForwarder>
create(shared_ptr<vshl::common::interfaces::ILogger> logger,
shared_ptr<vshl::common::interfaces::IAFBApi> afbApi,
shared_ptr<vshl::common::interfaces::ICapability> capability);
// Publish a capability message to the actual client.
bool forwardMessage(const string action, const string payload);
// Subscribe
bool subscribe(vshl::common::interfaces::IAFBRequest &request,
const string action);
// Destructor
~SubscriberForwarder();
private:
// Constructor
SubscriberForwarder(
shared_ptr<vshl::common::interfaces::ILogger> logger,
shared_ptr<vshl::common::interfaces::IAFBApi> afbApi,
shared_ptr<vshl::common::interfaces::ICapability> capability);
// Creates both upstream and downstream events
void createEvents();
// Binding API reference
shared_ptr<vshl::common::interfaces::IAFBApi> mAfbApi;
// Capability
shared_ptr<vshl::common::interfaces::ICapability> mCapability;
// Maps of capability action events to its corresponding Event object.
// Event name maps to Action Name
unordered_map<string, shared_ptr<common::interfaces::IAFBApi::IAFBEvent>>
mUpstreamEventsMap;
unordered_map<string, shared_ptr<common::interfaces::IAFBApi::IAFBEvent>>
mDownstreamEventsMap;
// Logger
shared_ptr<vshl::common::interfaces::ILogger> mLogger;
};
} // namespace core
} // namespace capabilities
} // namespace vshl
#endif // VSHL_CAPABILITIES_CORE_SUBSCRIBERFORWARDER_H_
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