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Diffstat (limited to 'src/plugins/voiceagents/include/VoiceAgentEventsHandler.h')
-rw-r--r-- | src/plugins/voiceagents/include/VoiceAgentEventsHandler.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/plugins/voiceagents/include/VoiceAgentEventsHandler.h b/src/plugins/voiceagents/include/VoiceAgentEventsHandler.h new file mode 100644 index 0000000..3c1ca6c --- /dev/null +++ b/src/plugins/voiceagents/include/VoiceAgentEventsHandler.h @@ -0,0 +1,95 @@ +/* + * 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_VOICEAGENTS_INCLUDE_VOICEAGENTSTATE_EVENT_HANDLER_H_ +#define VSHL_VOICEAGENTS_INCLUDE_VOICEAGENTSTATE_EVENT_HANDLER_H_ + +#include <algorithm> +#include <memory> +#include <unordered_map> + +#include "interfaces/afb/IAFBApi.h" +#include "interfaces/utilities/events/IEventFilter.h" +#include "interfaces/utilities/logging/ILogger.h" +#include "voiceagents/VoiceAgentEventNames.h" +#include "voiceagents/include/VoiceAgent.h" + +using namespace std; + +namespace vshl { +namespace voiceagents { +/* + * This class is reponsible for handling agent specific events + * subscription and delivery on behalf of the high level voice service. + * This class also listen to the incoming events from voice agents + * and implements propagation to application layer. + */ +class VoiceAgentEventsHandler : public vshl::common::interfaces::IEventFilter { +public: + // Create a VREventFilter. + static shared_ptr<VoiceAgentEventsHandler> create( + shared_ptr<vshl::common::interfaces::ILogger> logger, + shared_ptr<vshl::common::interfaces::IAFBApi> afbApi); + + // Creates all the vshl events for a specific voiceagent id. + // For e.g if voiceagent is VA-001 then a new vshl event + // voice_authstate_event#VA-001 for auth state will be created. + // Please see VoiceAgentEventNames.h for all the event names. + void createVshlEventsForVoiceAgent(const string voiceAgentId); + + // Removes the events from its bookkeeping. + void removeVshlEventsForVoiceAgent(const string voiceAgentId); + + // Subscribe to a vshl event corresponding to a voiceagent. + bool subscribeToVshlEventFromVoiceAgent( + vshl::common::interfaces::IAFBRequest& request, + const string eventName, + const shared_ptr<VoiceAgent> voiceAgent); + + ~VoiceAgentEventsHandler(); + +protected: + string getName() override; + + // IEventFilter override + bool onIncomingEvent(const string eventName, const string voiceAgentId, const string payload) override; + +private: + // Constructor + VoiceAgentEventsHandler( + shared_ptr<vshl::common::interfaces::ILogger> logger, + shared_ptr<vshl::common::interfaces::IAFBApi> afbApi); + + // Helper method to generate the event name with voiceagent Id + // concatenated. + string createEventNameWithVAId(string eventName, string voiceAgentId); + + // call subscribe verb on the voiceagent. True if subscription successful. + // False otherwise. + bool callSubscribeVerb(const shared_ptr<VoiceAgent> voiceAgent); + + // Binding API reference + shared_ptr<vshl::common::interfaces::IAFBApi> mAfbApi; + + // A map of VSHL event ID to its Event object + unordered_map<string, shared_ptr<common::interfaces::IAFBApi::IAFBEvent>> mEventsMap; + + // Logger + shared_ptr<vshl::common::interfaces::ILogger> mLogger; +}; + +} // namespace voiceagents +} // namespace vshl + +#endif // VSHL_VOICEAGENTS_INCLUDE_VOICEAGENTSTATE_EVENT_HANDLER_H_ |