Add base AGL libqtappfw and Telephony supporteel_4.99.3eel/4.99.34.99.3

Implements several QtObject subclasses that wrap
functionality provided by the AGL Application Framework.

* Message provides facilities to create new AppFW requests
  and parse AppFw replies/events from a JSON buffer.
* MessageEngine provides a websocket message processing client
  that can send or receive Messages on a given websocket address.
* TelephonyMessage subclasses Message to provide accessors and
  methods specific to the AGL Telephony API.
* Telephony provides a complete set of Qt properties/signals/methods
  that expose the AGL Telephony functionality to Qt/QML applications.
  An application normally instantiates only this class and has no
  need to handle low-level AppFW messages.

Bug-AGL: SPEC-1064

Change-Id: I2e41fb866bb4f867c81ccaf9bf33d627893879c8
Signed-off-by: Matt Porter <mporter@konsulko.com>

1 files changed, 88 insertions, 0 deletions

diff --git a/messageengine.cpp b/messageengine.cpp
new file mode 100644
index 0000000..7d53694
--- /dev/null
+++ b/messageengine.cpp
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2017 Konsulko Group
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License 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 "message.h"
+#include "messageengine.h"
+#include "telephonymessage.h"
+
+#include <QJsonArray>
+
+MessageEngine::MessageEngine(const QUrl &url, QObject *parent) :
+	QObject(parent),
+	m_url(url)
+{
+	connect(&m_websocket, &QWebSocket::connected, this, &MessageEngine::onConnected);
+	connect(&m_websocket, &QWebSocket::disconnected, this, &MessageEngine::onDisconnected);
+
+	m_websocket.open(url);
+}
+
+bool MessageEngine::sendMessage(Message *message)
+{
+	if (!message->isValid())
+		return false;
+
+	qint64 size = m_websocket.sendTextMessage(message->toJson().data());
+	if (size == 0)
+		return false;
+
+	return true;
+}
+
+void MessageEngine::onConnected()
+{
+	connect(&m_websocket, &QWebSocket::textMessageReceived, this, &MessageEngine::onTextMessageReceived);
+	emit connected();
+}
+
+void MessageEngine::onDisconnected()
+{
+	disconnect(&m_websocket, &QWebSocket::textMessageReceived, this, &MessageEngine::onTextMessageReceived);
+	m_websocket.deleteLater();
+	emit disconnected();
+}
+
+void MessageEngine::onTextMessageReceived(QString jsonStr)
+{
+	QJsonDocument jdoc(QJsonDocument::fromJson(jsonStr.toUtf8()));
+	if (jdoc.isEmpty()) {
+		qWarning() << "Received invalid JSON: empty appfw message";
+		return;
+	}
+
+	QJsonArray msg = jdoc.array();
+	QStringList api_str_list = msg[1].toString().split(QRegExp("/"));
+	QString api = api_str_list[0];
+
+	Message *message;
+	MessageType type;
+	// FIXME: This should be rewritten using a factory class with a
+	// parser parameter to remove API specific handling here
+	if (api == "telephony") {
+		message = new TelephonyMessage;
+		type = TelephonyEventMessage;
+	} else {
+		message = new Message;
+		type = GenericMessage;
+	}
+
+	if (message->fromJDoc(jdoc) == false) {
+		delete message;
+		return;
+	}
+
+	emit messageReceived(type, message);
+}