Merge branch 'master' of ssh://gerrit.automotivelinux.org:29418/AGL/meta-agl-demo...

[AGL/meta-agl-demo.git] / recipes-automotive / ambdbusaccess / files / ambdbusaccess.cpp

diff --git a/recipes-automotive/ambdbusaccess/files/ambdbusaccess.cpp b/recipes-automotive/ambdbusaccess/files/ambdbusaccess.cpp
new file mode 100644 (file)
index 0000000..6f2a7b8
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+++ b/recipes-automotive/ambdbusaccess/files/ambdbusaccess.cpp
@@ -0,0 +1,120 @@
+/* Copyright (C) 2015, Jaguar Land Rover. All Rights Reserved.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <QCoreApplication>
+#include <QDBusConnection>
+#include <QDBusInterface>
+#include <QDBusObjectPath>
+#include <QDBusReply>
+#include <QDebug>
+#include <string.h>
+
+int main(int argc, char *argv[])
+{
+    // TODO: Clean this up, update API, etc.
+    if (argc < 5 || argc > 6)
+    {
+        qWarning() << "Error detected! Insufficient number of arguments.";
+        qWarning() << "";
+        qWarning() << "Usage: ambdbusaccess <R/W> <Object> <Property> <Zone> [Value]";
+        qWarning() << "- <R/W>";
+        qWarning() << "  Used for specifying [R]ead or [W]rite.";
+        qWarning() << "- <Object>";
+        qWarning() << "  The AMB object to access.";
+        qWarning() << "- <Property>";
+        qWarning() << "  The property within the object to access.";
+        qWarning() << "- <Zone>";
+        qWarning() << "  The AMB zone to access.";
+        qWarning() << "- [Value]";
+        qWarning() << "  The value to write, if writing.";
+        qWarning() << "Example: ambdbusaccess Write ClimateControl FanSpeedLevel 0 7";
+        qWarning() << "";
+        qWarning() << "This program returns an int under the following conditions:";
+        qWarning() << "Successful Read: <Value Read>";
+        qWarning() << "Unsuccessful Read: -1";
+        qWarning() << "Successful Write: <Value Written>";
+        qWarning() << "Unsuccessful Write: -1";
+
+        return -1;
+    }
+
+    // TODO: Error check input.
+    bool read = !strncmp(argv[1], "R", 1);
+    QString object = argv[2];
+    QString property = argv[3];
+    qint32 zone = atoi(argv[4]);
+    qint32 value = 0;
+
+    if (argc == 6)
+    {
+        value = atoi(argv[5]);
+    }
+
+    // Necessary to suppress Qt messages about touching the D-Bus before the application was created.
+    QCoreApplication a(argc, argv);
+
+    // Sanity check that the system bus is actually present.
+    if (!QDBusConnection::systemBus().isConnected())
+    {
+        qCritical() << "Could not access system D-Bus!";
+        return -1;
+    }
+
+    // Get ahold of the manager object.
+    QDBusInterface *manager = new QDBusInterface("org.automotive.message.broker", "/", "org.automotive.Manager",
+                                                 QDBusConnection::systemBus());
+
+    // Go fetch the path for the AMB object we are concerned with.
+    qDebug().nospace() << "Looking for property " << property.toStdString().c_str() << " of object " <<
+                          object.toStdString().c_str() << " in zone " << zone << ".";
+    QDBusReply<QDBusObjectPath> propertyPath = manager->call("FindObjectForZone", object.toStdString().c_str(), zone);
+    if (!propertyPath.isValid())
+    {
+        qDebug() << "Invalid reply!" << propertyPath.error() << "Got the path:" << propertyPath.value().path();
+    }
+
+    // Now that we have the path, open an interface to the object.
+    QDBusInterface *propertyInterface = new QDBusInterface("org.automotive.message.broker", propertyPath.value().path(),
+                                                           "org.automotive.ClimateControl", QDBusConnection::systemBus());
+
+    // Perform our read or write operation.
+    if (read)
+    {
+        QVariant reply = propertyInterface->property(property.toStdString().c_str());
+        if (!reply.isValid())
+        {
+            qDebug() << "Invalid reply when reading the property!" << propertyInterface->lastError() << "Property:" <<
+                        reply.toString();
+            value = -1;
+        }
+        else
+        {
+            qDebug().nospace() << "Got a valid reply for the property of " << reply.toString().toStdString().c_str() << ".";
+            value = reply.toInt();
+        }
+    }
+    else
+    {
+        QVariant reply = propertyInterface->setProperty(property.toStdString().c_str(), value);
+        if (reply.toBool())
+        {
+            qDebug() << "Successfully wrote the property.";
+        }
+        else
+        {
+            qDebug() << "Failed to write the property.";
+            value = -1;
+        }
+    }
+
+    // Clean up.
+    delete propertyInterface;
+    delete manager;
+
+    // Either provide the read value or some feedback to the calling application.
+    return value;
+}
+