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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_CORE_INCLUDE_VR_REQUEST_H_
+#define VSHL_CORE_INCLUDE_VR_REQUEST_H_
+
+#include <memory>
+
+#include "interfaces/afb/IAFBApi.h"
+#include "interfaces/utilities/logging/ILogger.h"
+#include "interfaces/voiceagents/IVoiceAgent.h"
+
+using namespace std;
+
+namespace vshl {
+namespace core {
+/*
+ * This class implements the notion of a Voice Recognition Request.
+ * Each VR Request is currently mapped to one voice agent.
+ */
+class VRRequest {
+public:
+ // API Verbs
+ static std::string VA_VERB_STARTLISTENING;
+ static std::string VA_VERB_CANCEL;
+
+ // Create a VRRequest.
+ static unique_ptr<VRRequest> create(
+ shared_ptr<vshl::common::interfaces::ILogger> logger,
+ shared_ptr<vshl::common::interfaces::IAFBApi> afbApi,
+ string requestId,
+ shared_ptr<vshl::common::interfaces::IVoiceAgent> voiceAgent);
+
+ // Destructor
+ ~VRRequest();
+
+ // Invokes the underlying voiceagent's startlistening API.
+ // Returns true if started successfully. False otherwise.
+ bool startListening();
+
+ // Cancels the voice recognition in the unlerlying voiceagent.
+ // Returns true if canceled successfully. False otherwise.
+ bool cancel();
+
+private:
+ // Constructor
+ VRRequest(
+ shared_ptr<vshl::common::interfaces::ILogger> logger,
+ shared_ptr<vshl::common::interfaces::IAFBApi> afbApi,
+ const string requestId,
+ shared_ptr<vshl::common::interfaces::IVoiceAgent> voiceAgent);
+
+ // Binding API reference.
+ shared_ptr<vshl::common::interfaces::IAFBApi> mApi;
+
+ // Voice agent associated with this request
+ shared_ptr<vshl::common::interfaces::IVoiceAgent> mVoiceAgent;
+
+ // Request ID
+ string mRequestId;
+
+ // Logger
+ shared_ptr<vshl::common::interfaces::ILogger> mLogger;
+};
+
+} // namespace core
+} // namespace vshl
+
+#endif // VSHL_CORE_INCLUDE_VR_REQUEST_H_