rework message hierarchy

Rework message hierarchy with the final objective
of splitting libqtappfw into several libraries.
This commit carries the following changes:
- Simplify message hierarchy, keeping abstract
Message class, adding specialization for call and
event messages, keeping ResponseMessage, and
removing all module specific specializations.
- Add MessageFactory class to create message
objects.
- Change messages life cycle: using smart pointers
and removing QObject from message hierarchy (a
Message is not a QObject anymore and thus
'deleteLater()' is not available).
- Adapt all modules to use new message hierarchy.
- Keep ResponseMessage original constructor to
avoid breaking TaskManager.
- Message constructors have been kept public, but
will go private on a follow-up patch (once
TaskManager class has been modified to use new
MessageFactory).

Bug-AGL: SPEC-3112
Signed-off-by: Raquel Medina <raquel.medina@konsulko.com>
Change-Id: I3a7a6325209ddeca2293f1ac745371861a947bfb

3 files changed, 42 insertions, 33 deletions

diff --git a/bluetooth/CMakeLists.txt b/bluetooth/CMakeLists.txt
index cdefb0d..0e05d3b 100644
--- a/bluetooth/CMakeLists.txt
+++ b/bluetooth/CMakeLists.txt
@@ -1,2 +1,2 @@
-add_headers(bluetooth.h bluetoothmessage.h bluetoothmodel.h)
-add_sources(bluetooth.cpp bluetoothmessage.cpp bluetoothmodel.cpp)
+add_headers(bluetooth.h bluetoothmodel.h)
+add_sources(bluetooth.cpp bluetoothmodel.cpp)
diff --git a/bluetooth/bluetooth.cpp b/bluetooth/bluetooth.cpp
index f74d60d..e39270a 100644
--- a/bluetooth/bluetooth.cpp
+++ b/bluetooth/bluetooth.cpp
@@ -16,13 +16,13 @@
 
 #include <QDebug>
 
-#include "message.h"
-#include "bluetoothmessage.h"
+#include "callmessage.h"
+#include "eventmessage.h"
 #include "responsemessage.h"
+#include "messagefactory.h"
 #include "messageengine.h"
-#include "bluetoothmodel.h"
 #include "bluetooth.h"
-
+#include "bluetoothmodel.h"
 
 
 Bluetooth::Bluetooth (QUrl &url, QQmlContext *context, QObject * parent) :
@@ -58,10 +58,13 @@ Bluetooth::~Bluetooth()
 
 void Bluetooth::send_command(QString verb, QJsonObject parameter)
 {
-    BluetoothMessage *tmsg = new BluetoothMessage();
-    tmsg->createRequest(verb, parameter);
-    m_mloop->sendMessage(tmsg);
-    delete tmsg;
+    std::unique_ptr<Message> msg = MessageFactory::getInstance().createOutboundMessage(MessageId::Call);
+    if (!msg)
+        return;
+
+    CallMessage* btmsg = static_cast<CallMessage*>(msg.get());
+    btmsg->createRequest("Bluetooth-Manager", verb, parameter);
+    m_mloop->sendMessage(std::move(msg));
 }
 
 void Bluetooth::setPower(bool state)
@@ -261,32 +264,39 @@ void Bluetooth::processAdapterChangesEvent(QJsonObject data)
         m_discoverable = false;
 }
 
-void Bluetooth::onMessageReceived(MessageType type, Message *msg)
+void Bluetooth::onMessageReceived(std::shared_ptr<Message> msg)
 {
-    if (msg->isEvent() && type == MessageType::BluetoothEventMessage) {
-        BluetoothMessage *tmsg = qobject_cast<BluetoothMessage*>(msg);
-
-        if (tmsg->isDeviceChangesEvent()) {
-            processDeviceChangesEvent(tmsg->eventData());
-        } else if (tmsg->isAdapterChangesEvent()) {
-            processAdapterChangesEvent(tmsg->eventData());
-        } else if (tmsg->isAgentEvent()) {
-            emit requestConfirmationEvent(tmsg->eventData());
-        }
+    if (!msg)
+        return;
 
-    } else if (msg->isReply() && type == MessageType::ResponseRequestMessage) {
-        ResponseMessage *tmsg = qobject_cast<ResponseMessage*>(msg);
+    if (msg->isEvent()) {
+        std::shared_ptr<EventMessage> emsg = std::static_pointer_cast<EventMessage>(msg);
+        QString ename = emsg->eventName();
+        QString eapi = emsg->eventApi();
+        QJsonObject data = emsg->eventData();
+        if (eapi != "Bluetooth-Manager")
+            return;
+        if (ename == "device_changes") {
+            processDeviceChangesEvent(data);
+        } else if (ename == "adapter_changes") {
+            processAdapterChangesEvent(data);
+        } else if (ename == "agent") {
+            emit requestConfirmationEvent(data);
+        }
 
-        if (tmsg->requestVerb() == "managed_objects") {
-            populateDeviceList(tmsg->replyData());
-        } else if (tmsg->requestVerb() == "adapter_state") {
-            bool powered = tmsg->replyData().value("powered").toBool();
+    } else if (msg->isReply()) {
+        std::shared_ptr<ResponseMessage> rmsg = std::static_pointer_cast<ResponseMessage>(msg);
+        //get api name
+        QString verb = rmsg->requestVerb();
+        QJsonObject data = rmsg->replyData();
+        if (verb == "managed_objects") {
+            populateDeviceList(data);
+        } else if (verb == "adapter_state") {
+            bool powered = data.value("powered").toBool();
             if (m_power != powered) {
                 m_power = powered;
                 emit powerChanged(m_power);
             }
         }
     }
-
-    msg->deleteLater();
 }
diff --git a/bluetooth/bluetooth.h b/bluetooth/bluetooth.h
index 815e180..3953fe6 100644
--- a/bluetooth/bluetooth.h
+++ b/bluetooth/bluetooth.h
@@ -17,17 +17,16 @@
 #ifndef BLUETOOTH_H
 #define BLUETOOTH_H
 
+#include <memory>
 #include <QObject>
-#include <QJsonArray>
 #include <QJsonObject>
+#include <QJsonArray>
 #include <QtQml/QQmlContext>
 
 class BluetoothModel;
 class MessageEngine;
 class Message;
 
-enum class MessageType;
-
 class Bluetooth : public QObject
 {
     Q_OBJECT
@@ -80,7 +79,7 @@ class Bluetooth : public QObject
         // slots
         void onConnected();
         void onDisconnected();
-        void onMessageReceived(MessageType, Message*);
+        void onMessageReceived(std::shared_ptr<Message>);
 
         QString process_uuid(QString uuid) { if (uuid.length() == 36) return uuid; return uuids.value(uuid); };