share MessageEngine instance

Share MessageEngine instance among clients in the
same process using a common socket (same url).

- add MessageEngineFactory class;
- extend std::unordered_map<> to use QString as
key;
- use std::shared_ptr<MessageEngine> to share
ownership among MessageEngineFactory and the
engine clients;
- force MessagEngine parent object null to avoid
life cycle dependency on a parent;
- protect insertions & deletions in m_calls map;

Also, not directly related but as part of testing
these changes: cleanup on voice to remove
superflous model sorting (there's just one voice
model for alexa voice agent).

Bug-AGL: SPEC-3112
Signed-off-by: Raquel Medina <raquel.medina@konsulko.com>
Change-Id: Ie2304453dc37723dac13d256286eeb85f84ca2ab

2 files changed, 7 insertions, 8 deletions

diff --git a/map/map.cpp b/map/map.cpp
index e7a4157..b85a323 100644
--- a/map/map.cpp
+++ b/map/map.cpp
@@ -21,21 +21,20 @@
 #include "responsemessage.h"
 #include "messagefactory.h"
 #include "messageengine.h"
+#include "messageenginefactory.h"
 #include "map.h"
 
 Map::Map (QUrl &url, QObject * parent) :
-    QObject(parent),
-    m_mloop(nullptr)
+    QObject(parent)
 {
-    m_mloop = new MessageEngine(url);
-    QObject::connect(m_mloop, &MessageEngine::connected, this, &Map::onConnected);
-    QObject::connect(m_mloop, &MessageEngine::disconnected, this, &Map::onDisconnected);
-    QObject::connect(m_mloop, &MessageEngine::messageReceived, this, &Map::onMessageReceived);
+    m_mloop = MessageEngineFactory::getInstance().getMessageEngine(url);
+    QObject::connect(m_mloop.get(), &MessageEngine::connected, this, &Map::onConnected);
+    QObject::connect(m_mloop.get(), &MessageEngine::disconnected, this, &Map::onDisconnected);
+    QObject::connect(m_mloop.get(), &MessageEngine::messageReceived, this, &Map::onMessageReceived);
 }
 
 Map::~Map()
 {
-    delete m_mloop;
 }
 
 void Map::compose(QString recipient, QString message)
diff --git a/map/map.h b/map/map.h
index 91af103..150a95d 100644
--- a/map/map.h
+++ b/map/map.h
@@ -44,7 +44,7 @@ class Map : public QObject
         void messageResult(QString handle, QVariantMap message);
 
     private:
-        MessageEngine *m_mloop;
+        std::shared_ptr<MessageEngine> m_mloop;
 
         // slots
         void onConnected();