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, 89 insertions, 0 deletions

diff --git a/src/plugins/afb/src/AFBEventImpl.cpp b/src/plugins/afb/src/AFBEventImpl.cpp
new file mode 100644
index 0000000..e3c902d
--- /dev/null
+++ b/src/plugins/afb/src/AFBEventImpl.cpp
@@ -0,0 +1,89 @@
+/*
+ * 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.
+ */
+#include "afb/include/AFBEventImpl.h"
+
+static string TAG = "vshl::afb::Event";
+
+using Level = vshl::common::interfaces::ILogger::Level;
+using namespace vshl::common::interfaces;
+
+namespace vshl {
+namespace afb {
+
+unique_ptr<AFBEventImpl> AFBEventImpl::create(
+    shared_ptr<vshl::common::interfaces::ILogger> logger,
+    AFB_ApiT api,
+    const string& eventName) {
+    return unique_ptr<AFBEventImpl>(new AFBEventImpl(logger, api, eventName));
+}
+
+AFBEventImpl::AFBEventImpl(
+    shared_ptr<vshl::common::interfaces::ILogger> logger,
+    AFB_ApiT api,
+    const string& eventName) :
+        mLogger(logger),
+        mAfbApi(api),
+        mEventName(eventName),
+        mAfbEvent(nullptr) {
+}
+
+AFBEventImpl::~AFBEventImpl() {
+}
+
+string AFBEventImpl::getName() const {
+    return mEventName;
+}
+
+bool AFBEventImpl::isValid() {
+    makeEventIfNeccessary();
+    return afb_event_is_valid(mAfbEvent) == 1 ? true : false;
+}
+
+bool AFBEventImpl::subscribe(IAFBRequest& requestInterface) {
+    makeEventIfNeccessary();
+    auto request = static_cast<AFB_ReqT>(requestInterface.getNativeRequest());
+    if (isValid() && afb_req_subscribe(request, mAfbEvent) == 0) {
+        return true;
+    }
+
+    return false;
+}
+
+bool AFBEventImpl::unsubscribe(IAFBRequest& requestInterface) {
+    makeEventIfNeccessary();
+    auto request = static_cast<AFB_ReqT>(requestInterface.getNativeRequest());
+    if (isValid() && afb_req_unsubscribe(request, mAfbEvent) == 0) {
+        return true;
+    }
+
+    return false;
+}
+
+int AFBEventImpl::publishEvent(struct json_object* payload) {
+    makeEventIfNeccessary();
+    return afb_event_push(mAfbEvent, payload);
+}
+
+void AFBEventImpl::makeEventIfNeccessary() {
+    if (mAfbEvent) {
+        return;
+    }
+
+    mLogger->log(Level::NOTICE, TAG, "Creating VSHL event: " + mEventName);
+    mAfbEvent = afb_api_make_event(mAfbApi, mEventName.c_str());
+}
+
+}  // namespace afb
+}  // namespace vshl