Add initial signal-composer support

Add support for new abstract event.vehicle.speed and event.engine.speed
events from the signal-composer binding. This should help avoid code
duplication in the Qt apps needing events from signal-composer.

Bug-AGL: SPEC-3023

Change-Id: I877f8c1cc057d0d491318ef5ad6a943119ffc8b8
Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Scott Murray <scott.murray@konsulko.com>

5 files changed, 202 insertions, 0 deletions

diff --git a/signal-composer/CMakeLists.txt b/signal-composer/CMakeLists.txt
new file mode 100644
index 0000000..18f3a0a
--- /dev/null
+++ b/signal-composer/CMakeLists.txt
@@ -0,0 +1,2 @@
+add_headers(signalcomposer.h signalcomposermessage.h)
+add_sources(signalcomposer.cpp signalcomposermessage.cpp)
diff --git a/signal-composer/signalcomposer.cpp b/signal-composer/signalcomposer.cpp
new file mode 100644
index 0000000..b02c6d3
--- /dev/null
+++ b/signal-composer/signalcomposer.cpp
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2018 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 "signalcomposer.h"
+#include "signalcomposermessage.h"
+
+SignalComposer::SignalComposer (QUrl &url, QObject * parent) :
+    QObject(parent),
+    m_mloop(nullptr)
+{
+    m_mloop = new MessageEngine(url);
+    QObject::connect(m_mloop, &MessageEngine::connected, this, &SignalComposer::onConnected);
+    QObject::connect(m_mloop, &MessageEngine::disconnected, this, &SignalComposer::onDisconnected);
+    QObject::connect(m_mloop, &MessageEngine::messageReceived, this, &SignalComposer::onMessageReceived);
+}
+
+SignalComposer::~SignalComposer()
+{
+    delete m_mloop;
+}
+
+void SignalComposer::onConnected()
+{
+    QStringListIterator eventIterator(events);
+    SignalComposerMessage *tmsg;
+
+    while (eventIterator.hasNext()) {
+        tmsg = new SignalComposerMessage();
+        QJsonObject parameter;
+        parameter.insert("signal", eventIterator.next());
+        tmsg->createRequest("subscribe", parameter);
+        m_mloop->sendMessage(tmsg);
+        delete tmsg;
+    }
+}
+
+void SignalComposer::onDisconnected()
+{
+    QStringListIterator eventIterator(events);
+    SignalComposerMessage *tmsg;
+
+    while (eventIterator.hasNext()) {
+        tmsg = new SignalComposerMessage();
+        QJsonObject parameter;
+        parameter.insert("signal", eventIterator.next());
+        tmsg->createRequest("unsubscribe", parameter);
+        m_mloop->sendMessage(tmsg);
+        delete tmsg;
+    }
+}
+
+void SignalComposer::onMessageReceived(MessageType type, Message *message)
+{
+    if (type == SignalComposerEventMessage) {
+        SignalComposerMessage *tmsg = qobject_cast<SignalComposerMessage*>(message);
+
+        if (tmsg->isEvent()) {
+            QString uid = tmsg->eventData().value("uid").toString();
+            QVariant v = tmsg->eventData().value("value").toVariant();
+            QString value;
+            if(v.canConvert(QMetaType::QString))
+                value = v.toString();
+            else
+                qWarning() << "Unconvertible type for uid " << uid;
+
+            emit signalEvent(uid, value);
+        }
+    }
+    message->deleteLater();
+}
diff --git a/signal-composer/signalcomposer.h b/signal-composer/signalcomposer.h
new file mode 100644
index 0000000..d0b0332
--- /dev/null
+++ b/signal-composer/signalcomposer.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+#ifndef SIGNALCOMPOSER_H
+#define SIGNALCOMPOSER_H
+
+#include <QDebug>
+#include <QObject>
+#include <QJsonArray>
+
+#include "messageengine.h"
+
+class SignalComposer : public QObject
+{
+    Q_OBJECT
+
+    public:
+        explicit SignalComposer(QUrl &url, QObject * parent = Q_NULLPTR);
+        virtual ~SignalComposer();
+
+    signals:
+        void signalEvent(QString uid, QString value);
+
+    private:
+        MessageEngine *m_mloop;
+
+        void onConnected();
+        void onDisconnected();
+        void onMessageReceived(MessageType, Message*);
+
+        const QStringList events {
+            "event.vehicle.speed",
+            "event.engine.speed",
+        };
+};
+
+#endif // SIGNALCOMPOSER_H
diff --git a/signal-composer/signalcomposermessage.cpp b/signal-composer/signalcomposermessage.cpp
new file mode 100644
index 0000000..69b8d00
--- /dev/null
+++ b/signal-composer/signalcomposermessage.cpp
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2019 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 <QJsonArray>
+#include <QJsonDocument>
+#include <QJsonObject>
+
+#include "signalcomposermessage.h"
+
+bool SignalComposerMessage::createRequest(QString verb, QJsonObject parameter)
+{
+    if (!verbs.contains(verb))
+        return false;
+
+    return Message::createRequest("signal-composer", verb, parameter);
+}
diff --git a/signal-composer/signalcomposermessage.h b/signal-composer/signalcomposermessage.h
new file mode 100644
index 0000000..e5b6892
--- /dev/null
+++ b/signal-composer/signalcomposermessage.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+#ifndef SIGNALCOMPOSER_MESSAGE_H
+#define SIGNALCOMPOSER_MESSAGE_H
+
+#include "message.h"
+
+class SignalComposerMessage : public Message
+{
+    Q_OBJECT
+
+    public:
+        bool createRequest(QString verb, QJsonObject parameter);
+
+    private:
+        QStringList verbs {
+            "subscribe",
+            "unsubscribe",
+        };
+};
+
+#endif // SIGNALCOMPOSER_MESSAGE_H