SPEC-1924: AGL Speech Framework's Voice Service High Level 1.0 Release.

Details:
1) Control plugin implementation for VSHL 1.0
2) Exposed APIs that are documented in the confluence page
   https://confluence.automotivelinux.org/display/SPE/Speech+EG+Architecture
3) Implemented 39 unit tests based on GTest framework to test all the low
level components of VSHL binding.
4) Implemented a HTML5 based VSHL API tester application to test VSHL APIs.

API specification:
https://confluence.automotivelinux.org/display/SPE/Speech+EG+Architecture#SpeechEGArchitecture-HighLevelVoiceService

Test performed:
1) Tested AGL service running Alexa Auto SDK https://github.com/alexa/aac-sdk on Ubuntu 16.04 and Renesas R-Car M3 board.

License:
Apache 2.0

Developers/Owners:
Naveen Bobbili (nbobbili@amazon.com)
Prakash Buddhiraja (buddhip@amazon.com)
Shotaro Uchida (shotaru@amazon.co.jp)

Change-Id: I3370f4ad65aff030f24f4ad571fb02d525bbfbca
Signed-off-by: Naveen Bobbili  <nbobbili@amazon.com>

1 files changed, 98 insertions, 0 deletions

diff --git a/src/plugins/interfaces/afb/IAFBApi.h b/src/plugins/interfaces/afb/IAFBApi.h
new file mode 100644
index 0000000..cd98006
--- /dev/null
+++ b/src/plugins/interfaces/afb/IAFBApi.h
@@ -0,0 +1,98 @@
+/*
+ * 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_AFBAPI_H_
+#define VSHL_COMMON_INTERFACES_AFBAPI_H_
+
+#include <memory>
+#include <string>
+
+#include <json-c/json_object.h>
+
+using namespace std;
+
+namespace vshl {
+namespace common {
+namespace interfaces {
+
+/**
+ * Interface to represent AFB Request.
+ */
+class IAFBRequest {
+public:
+    /**
+     * Gets the native request object.
+     */
+    virtual void* getNativeRequest() = 0;
+};
+
+/**
+ * Interface to encapsulate all AFB (AGL Application Framework Binding)
+ * functions.
+ */
+class IAFBApi {
+public:
+    /**
+     * Interface to represent AFB Event
+     */
+    class IAFBEvent {
+    public:
+        /**
+         * Gets human readable name of the event.
+         */
+        virtual std::string getName() const = 0;
+
+        /**
+         * Returns true if event is valid. False otherwise.
+         */
+        virtual bool isValid() = 0;
+
+        /**
+         * Publish event to all observers.
+         *
+         * @return The number of observers that received the event.
+         */
+        virtual int publishEvent(struct json_object* payload) = 0;
+
+        /**
+         * Subscribe to the event
+         *
+         * @c request Party interested in the event.
+         */
+        virtual bool subscribe(IAFBRequest& request) = 0;
+
+        /**
+         * Unsubscribe to the event
+         *
+         * @c request Party no longer interested in the event.
+         */
+        virtual bool unsubscribe(IAFBRequest& request) = 0;
+    };
+
+    virtual std::shared_ptr<IAFBEvent> createEvent(const std::string& eventName) = 0;
+
+    virtual int callSync(
+        const std::string& api,
+        const std::string& verb,
+        struct json_object* request,
+        struct json_object** result,
+        std::string& error,
+        std::string& info) = 0;
+};
+
+}  // namespace interfaces
+}  // namespace common
+}  // namespace vshl
+
+#endif  // VSHL_COMMON_INTERFACES_AFBAPI_H_