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, 72 insertions, 0 deletions

diff --git a/src/plugins/core/VRRequestProcessorImpl.cpp b/src/plugins/core/VRRequestProcessorImpl.cpp
new file mode 100644
index 0000000..7441a7d
--- /dev/null
+++ b/src/plugins/core/VRRequestProcessorImpl.cpp
@@ -0,0 +1,72 @@
+/*
+ * 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 "core/VRRequestProcessor.h"
+
+#include "core/include/VRAgentsObserver.h"
+
+static string TAG = "vshl::core::VRRequestProcessor";
+
+using Level = vshl::utilities::logging::Logger::Level;
+
+namespace vshl {
+namespace core {
+// Create a VRRequestProcessor.
+unique_ptr<VRRequestProcessor> VRRequestProcessor::create(
+    shared_ptr<vshl::common::interfaces::ILogger> logger,
+    shared_ptr<vshl::core::VRRequestProcessorDelegate> delegate) {
+    auto processor = std::unique_ptr<VRRequestProcessor>(new VRRequestProcessor(logger, delegate));
+    return processor;
+}
+
+VRRequestProcessor::VRRequestProcessor(
+    shared_ptr<vshl::common::interfaces::ILogger> logger,
+    shared_ptr<vshl::core::VRRequestProcessorDelegate> delegate) :
+        mLogger(logger),
+        mDelegate(delegate) {
+    mVoiceAgentsChangeObserver = VRAgentsObserver::create(mDelegate);
+}
+
+VRRequestProcessor::~VRRequestProcessor() {
+    mDelegate->cancelAllRequests();
+}
+
+string VRRequestProcessor::startListening() {
+    // Currently start is simply going to send the request to
+    // the default voice agent as the wake word detection is not
+    // enabled.
+    shared_ptr<vshl::common::interfaces::IVoiceAgent> defaultVA = mDelegate->getDefaultVoiceAgent();
+    if (!defaultVA) {
+        mLogger->log(Level::ERROR, TAG, "Failed to start. No default voiceagent found.");
+        return "";
+    }
+
+    // If the requests container is not empty, then clear the
+    // existing requests in flight and create a new request.
+    mDelegate->cancelAllRequests();
+    return mDelegate->startRequestForVoiceAgent(defaultVA);
+}
+
+void VRRequestProcessor::cancel() {
+    // Cancel all pending requests
+    mDelegate->cancelAllRequests();
+}
+
+shared_ptr<vshl::common::interfaces::IVoiceAgentsChangeObserver> VRRequestProcessor::getVoiceAgentsChangeObserver()
+    const {
+    return mVoiceAgentsChangeObserver;
+}
+
+}  // namespace core
+}  // namespace vshl