vshl-capabilities:

This API is responsible for brokering capbilities related
messages from voiceagents to apps and vice versa.

Verbs exposed are

navigation/publish
navigation/subscribe
phonecontrol/publish
phonecontrol/subscribe
playbackcontroller/publish
playbackcontroller/subscribe
guiMetadata/publish
guiMetadata/subscribe

This API exposes publish and subscribe methods for all
the speech framework domains/capabilities. For eg. navigation,
phonecontrol etc. This API is used by apps and low level voice
agent binding to subscribe and publish these capability messages
whenever applicable.
This specific commit is for vshl-capabilities API.

Change-Id: I822c2e8589e39574d707a7c199bea91a686dced7
Signed-off-by: Naveen Bobbili  <nbobbili@amazon.com>

3 files changed, 317 insertions, 0 deletions

diff --git a/src/plugins/capabilities/communication/include/PhoneControlCapability.h b/src/plugins/capabilities/communication/include/PhoneControlCapability.h
new file mode 100644
index 0000000..87dc339
--- /dev/null
+++ b/src/plugins/capabilities/communication/include/PhoneControlCapability.h
@@ -0,0 +1,57 @@
+/*
+ * 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_CAPABILITIES_PHONECONTROL_CAPABILITY_H_
+#define VSHL_CAPABILITIES_PHONECONTROL_CAPABILITY_H_
+
+#include <memory>
+
+#include "interfaces/capabilities/ICapability.h"
+#include "interfaces/utilities/logging/ILogger.h"
+
+namespace vshlcapabilities {
+namespace capabilities {
+namespace phonecontrol {
+
+/*
+ * PhoneControl capability. Calls are initiated in the endpoint.
+ */
+class PhoneControl : public common::interfaces::ICapability {
+public:
+    // Create a PhoneControl.
+    static std::shared_ptr<PhoneControl> create(
+        shared_ptr<vshlcapabilities::common::interfaces::ILogger> logger);
+
+    ~PhoneControl() = default;
+
+protected:
+    string getName() const override;
+
+    list<string> getUpstreamMessages() const override;
+
+    list<string> getDownstreamMessages() const override;
+
+private:
+    PhoneControl(
+        shared_ptr<vshlcapabilities::common::interfaces::ILogger> logger);
+
+    shared_ptr<vshlcapabilities::common::interfaces::ILogger> mLogger;
+};
+
+}  // namespace phonecontrol
+}  // namespace capabilities
+}  // namespace vshl
+
+#endif  // VSHL_CAPABILITIES_PHONECONTROL_CAPABILITY_H_
diff --git a/src/plugins/capabilities/communication/include/PhoneControlMessages.h b/src/plugins/capabilities/communication/include/PhoneControlMessages.h
new file mode 100644
index 0000000..23d2fae
--- /dev/null
+++ b/src/plugins/capabilities/communication/include/PhoneControlMessages.h
@@ -0,0 +1,208 @@
+/*
+ * 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_CAPABILITIES_PHONECONTROL_MESSAGES_H_
+#define VSHL_CAPABILITIES_PHONECONTROL_MESSAGES_H_
+
+#include <list>
+#include <string>
+
+using namespace std;
+
+namespace vshlcapabilities {
+namespace capabilities {
+namespace phonecontrol {
+
+static string NAME = "phonecontrol";
+
+/*
+ ******************************************************************************************************
+ *  Supported actions from VA -> APPS
+ ******************************************************************************************************
+ */
+
+/* Dial message sent from VA to app handling the calling.
+ *
+ *  payload:
+ *  {
+ *     "callId": "{{STRING}}",
+ *     "callee": {
+ *       "details": "{{STRING}}",
+ *       "defaultAddress": {
+ *         "protocol": "{{STRING}}",
+ *         "format": "{{STRING}}",
+ *         "value": "{{STRING}}"
+ *       },
+ *       "alternativeAddresses": [{
+ *         "protocol": "{{STRING}}",
+ *         "format": "{{STRING}}",
+ *         "value": {{STRING}}
+ *       }]
+ *     }
+ *   }
+ * }
+ *
+ * callId (required): A unique identifier for the call
+ * callee (required): The destination of the outgoing call
+ * callee.details (optional): Descriptive information about the callee
+ * callee.defaultAddress (required): The default address to use for calling the callee
+ * callee.alternativeAddresses (optional): An array of alternate addresses for the existing callee
+ * address.protocol (required): The protocol for this address of the callee (e.g. PSTN, SIP, H323, etc.)
+ * address.format (optional): The format for this address of the callee (e.g. E.164, E.163, E.123, DIN5008, etc.)
+ * address.value (required): The address of the callee.
+ *
+ */
+static string PHONECONTROL_DIAL = "dial";
+/**
+ * Notifies the platform implementation to redial the last called phone number.
+ * 
+ * After returning @c true, if no stored number is available to be redialed, @c PhoneCallController::callFailed with 
+ * @c CallError::NO_NUMBER_FOR_REDIAL should be called.
+ * 
+ * @param [in] payload Details of the redial request in structured JSON format. See the following
+ * payload:
+ * {
+ *   "callId": "{{STRING}}"
+ * }
+ * @li callId (required): A unique identifier for the call
+ *
+ * @return @c true if the platform implementation successfully handled the call
+ */ 
+static string PHONECONTROL_REDIAL = "redial";
+/**
+ * Notifies the platform implementation to answer an inbound call
+ * 
+ * @param [in] payload Details of the answer request in structured JSON format. See the following
+ * payload:
+ * {
+ *   "callId": "{{STRING}}",
+ * }
+ * @li callId (required): The unique identifier for the call to answer
+ */  
+static string PHONECONTROL_ANSWER = "answer";
+/**
+ * Notifies the platform implementation to end an ongoing call or stop inbound or outbound call setup
+ * 
+ * @param [in] payload Details of the stop request in structured JSON format. See the following
+ * payload:
+ * {
+ *   "callId": "{{STRING}}"
+ * }
+ * @li callId (required): The unique identifier for the call to be stopped
+ */
+static string PHONECONTROL_STOP = "stop";
+/**
+ * Notifies the platform implementation to send a DTMF signal to the calling device
+ * 
+ * @param [in] payload Details of the DTMF request in structured JSON format. See the following
+ * payload:
+ * {
+ *   "callId": "{{STRING}}",
+ *   "signal": "{{STRING}}"
+ * }
+ * @li callId (required): The unique identifier for the call
+ * @li signal (required): The DTMF string to be sent to the calling device associated with the callId
+ */ 
+static string PHONECONTROL_SEND_DTMF = "send_dtmf";
+
+/*
+ ******************************************************************************************************
+ *  Supported actions from Apps -> VA
+ ******************************************************************************************************
+ */
+
+/*
+ *  App notifies the voiceagents of a change in connection state of a calling device.
+ *
+ *  payload:
+ *  {
+ *	  "state" : "{{STRING}}" // CONNECTED or DISCONNECTED
+ *  }
+ */
+static string PHONECONTROL_CONNECTIONSTATE_CHANGED = "connection_state_changed";
+/*
+ *  App notifies the voiceagents that call is activated
+ *
+ *  callId must match the one that is sent by VA with DIAL message above.
+ *
+ *  payload:
+ *  {
+ *	  "callId" : "{{STRING}}"
+ *    "state"  : "{{STRING}}" // IDLE, ACTIVE, TRYING, INBOUND_RINGING, OUTBOUND_RINGING, INVITED
+ *  }
+ */
+static string PHONECONTROL_CALL_STATE_CHANGED = "call_state_changed";
+/*
+ *  App notifies the voiceagents of an error in initiating or maintaining a
+ *  call on a calling device
+ *
+ *  callId must match the one that is sent by VA with DIAL message above.
+ *  error: below status codes.
+ *     4xx: Validation failure for the input from the DIAL message
+ *     500: Internal error on the platform unrelated to the cellular network
+ *     503: Error on the platform related to the cellular network
+ *
+ *  payload :
+ *  {
+ *	  "callId" : "{{STRING}}"
+ *    "error"  : "{{STRING}}"
+ *  }
+ */
+static string PHONECONTROL_CALL_FAILED = "call_failed";
+/**
+  * App notifies the voiceagents that a caller id was received for an inbound call
+  *  payload :
+  *  {
+  *    "callId" : "{{STRING}}"
+  *    "callerId"  : "{{STRING}}"
+  *  }
+  * 
+  * @param [in] callId The unique identifier for the call associated with the callId
+  * @param [in] callerId The caller's identifier or phone number
+  */
+static string PHONECONTROL_CALLERID_RECEIVED = "caller_id_received";
+
+/** 
+ * Notifies the Engine that sending the DTMF signal succeeded.
+ *  payload :
+ *  {
+ *    "callId" : "{{STRING}}"
+ *  }
+ * @param [in] callId The unique identifier for the associated call
+ * 
+ * PhoneCallController::sendDTMF
+ */
+static string PHONECONTROL_SEND_DTMF_SUCCEEDED = "send_dtmf_succeeded";
+
+// List of actions that are delivered from VA -> Apps
+static list<string> PHONECONTROL_UPSTREAM_ACTIONS = {
+    PHONECONTROL_DIAL,
+    PHONECONTROL_REDIAL,
+    PHONECONTROL_ANSWER,
+    PHONECONTROL_STOP,
+    PHONECONTROL_SEND_DTMF
+};
+
+// List of actions that are delivered from Apps -> VA
+static list<string> PHONECONTROL_DOWNSTREAM_ACTIONS = {PHONECONTROL_CONNECTIONSTATE_CHANGED,
+                                                       PHONECONTROL_CALL_STATE_CHANGED,
+                                                       PHONECONTROL_CALL_FAILED,
+                                                       PHONECONTROL_CALLERID_RECEIVED,
+                                                       PHONECONTROL_SEND_DTMF_SUCCEEDED};
+
+}  // namespace phonecontrol
+}  // namespace capabilities
+}  // namespace vshl
+
+#endif  // VSHL_CAPABILITIES_PHONECONTROL_MESSAGES_H_
diff --git a/src/plugins/capabilities/communication/src/PhoneControlCapability.cpp b/src/plugins/capabilities/communication/src/PhoneControlCapability.cpp
new file mode 100644
index 0000000..75296bf
--- /dev/null
+++ b/src/plugins/capabilities/communication/src/PhoneControlCapability.cpp
@@ -0,0 +1,52 @@
+/*
+ * 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 "capabilities/communication/include/PhoneControlCapability.h"
+#include "capabilities/communication/include/PhoneControlMessages.h"
+
+const string TAG = "vshlcapabilities::capabilities::phonecontrol";
+
+using Level = vshlcapabilities::common::interfaces::ILogger::Level;
+
+namespace vshlcapabilities {
+namespace capabilities {
+namespace phonecontrol {
+
+// Create a phonecontrol.
+shared_ptr<PhoneControl> PhoneControl::create(
+    shared_ptr<vshlcapabilities::common::interfaces::ILogger> logger) {
+    auto phonecontrol = std::shared_ptr<PhoneControl>(new PhoneControl(logger));
+    return phonecontrol;
+}
+
+PhoneControl::PhoneControl(
+    shared_ptr<vshlcapabilities::common::interfaces::ILogger> logger) {
+    mLogger = logger;
+}
+
+string PhoneControl::getName() const {
+    return NAME;
+}
+
+list<string> PhoneControl::getUpstreamMessages() const {
+    return PHONECONTROL_UPSTREAM_ACTIONS;
+}
+
+list<string> PhoneControl::getDownstreamMessages() const {
+    return PHONECONTROL_DOWNSTREAM_ACTIONS;
+}
+
+}  // namespace phonecontrol
+}  // namespace capabilities
+}  // namespace vshl