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

1 files changed, 67 insertions, 0 deletions

diff --git a/eventmessage.cpp b/eventmessage.cpp
new file mode 100644
index 0000000..818830f
--- /dev/null
+++ b/eventmessage.cpp
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2020 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 <QDebug>
+#include <QJsonArray>
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QJsonValue>
+
+#include "eventmessage.h"
+
+EventMessage::EventMessage(QJsonDocument content): Message()
+{
+	QJsonArray msg = content.array();
+	if (!msg[2].isObject()) {
+		qWarning("Invalid appfw payload: no JSON object");
+		return;
+	}
+	
+	//deserialize:
+	QJsonObject payload = msg[2].toObject();
+
+	auto data_iter = payload.find("data");
+	m_event_data = data_iter.value().toObject();
+
+	auto event_iter = payload.find("event");
+	auto event_string = event_iter.value().toString();
+	if (event_string.isEmpty()) {
+		qWarning("Invalid appfw event message: empty event name");
+		return;
+	}
+	QStringList event_strings = event_string.split(QRegExp("/"));
+	if (event_strings.size() != 2) {
+		qWarning("Invalid appfw event message: malformed event name");
+		return;
+	}
+	m_event_api = event_strings[0];
+	m_event_name = event_strings[1];
+	m_init = true;
+}
+
+QByteArray EventMessage::serialize(QJsonDocument::JsonFormat format)
+{
+	QJsonArray array;
+	array.append(static_cast<int>(MessageId::Event));
+	array.append(0); //unused field
+	array.append(m_event_api + "/" + m_event_name);
+	array.append(m_event_data);
+
+	QJsonDocument jdoc;
+	jdoc.setArray(array);
+
+	return jdoc.toJson(format).data();
+}