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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_COMMON_INTERFACES_IVOICEAGENTSCHANGEOBSERVER_H_
#define VSHL_COMMON_INTERFACES_IVOICEAGENTSCHANGEOBSERVER_H_
#include <memory>
#include <string>
#include "interfaces/voiceagents/IVoiceAgent.h"
using namespace std;
namespace vshl {
namespace common {
namespace interfaces {
/*
* This interface is used to observe changes to the voiceagents datastore.
* The voiceagents data store is contained in the voiceagents module.
*/
class IVoiceAgentsChangeObserver {
public:
/**
* This method notifies the observers that the default voiceagent selection
* has been updated.
*/
virtual void
OnDefaultVoiceAgentChanged(shared_ptr<IVoiceAgent> defaultVoiceAgent) = 0;
/**
* This method notifies the observers that a new voiceagent has been added.
*/
virtual void OnVoiceAgentAdded(shared_ptr<IVoiceAgent> voiceAgent) = 0;
/**
* This method notifies the observers that a voiceagent is removed.
*/
virtual void OnVoiceAgentRemoved(shared_ptr<IVoiceAgent> voiceAgent) = 0;
/**
* This method notifies the observers that active wakeword for a voiceagent is
* updated.
*/
virtual void
OnVoiceAgentActiveWakeWordChanged(shared_ptr<IVoiceAgent> voiceAgent) = 0;
/**
* This method notifies the observers that the voiceagent has been activated.
*/
virtual void OnVoiceAgentActivated(shared_ptr<IVoiceAgent> voiceAgent) = 0;
/**
* This method notifies the observers that the voiceagent has been activated.
*/
virtual void OnVoiceAgentDeactivated(shared_ptr<IVoiceAgent> voiceAgent) = 0;
/**
* Virtual destructor to assure proper cleanup of derived types.
*/
virtual ~IVoiceAgentsChangeObserver() = default;
};
} // namespace interfaces
} // namespace common
} // namespace vshl
#endif // VSHL_COMMON_INTERFACES_IVOICEAGENTSCHANGEOBSERVER_H_
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