Index: sources/storage/filehandler.cpp
===================================================================
diff -u -r62efc6d8ead9b39b47859fdc9c0661f30b5941d0 -rc6a09899d2e46dc0bda5a6b994aa257953626f97
--- sources/storage/filehandler.cpp	(.../filehandler.cpp)	(revision 62efc6d8ead9b39b47859fdc9c0661f30b5941d0)
+++ sources/storage/filehandler.cpp	(.../filehandler.cpp)	(revision c6a09899d2e46dc0bda5a6b994aa257953626f97)
@@ -14,32 +14,83 @@
 #include "filehandler.h"
 
 //Qt
-#include <QDebug>
 #include <QFileInfo>
+#include <QProcess>
+#include <QtConcurrent/QtConcurrent>
+#include <QFuture>
 
 // Project
+#include "storageglobals.h"
+#include "logger.h"
+#include "threads.h"
 
+// namespace
 using namespace Storage;
-FileHandler::FileHandler(QObject *parent) : QObject(parent)
-{
-    connect(&fsWatcher, SIGNAL(directoryChanged(QString)),
-            this      ,   SLOT(directoryChanged(QString)));
-}
 
-bool FileHandler::init()
+/*!
+ * \brief   FileHandler::write
+ * \details Writes the content of vContent into the file vFileName.
+ * \param   vFileName - Source file name
+ * \param   vContent  - The content which is going to be written in the file.
+ * \param   vAppend   - if set to true the content will be appended at the end of the file.
+ * \return  false if file can't be opened.
+ */
+bool FileHandler::write(const QString &vFileName, const QString &vContent, bool vAppend)
 {
-    fsWatcher.addPath("/dev/");
+    QFile file(vFileName);
+    QIODevice::OpenMode openMode = vAppend ?
+                QFile::Text | QFile::Append :
+                QFile::Text | QFile::WriteOnly;
+    if (! file.open(openMode)) {
+        LOG_ERROR(QObject::tr("Can't open file for write (%1)").arg(vFileName));
+        return false;
+    }
+    QTextStream out(&file);
+    out << vContent;
+    out.flush();
     return true;
 }
 
-void FileHandler::directoryChanged(const QString &vPath)
+/*!
+ * \brief   FileHandler::read
+ * \details reads file vFilename content into vContent variable.
+ * \param   vFileName - Source file name
+ * \param   vContent  - The content of the file which will be set when done.
+ * \return  false if file can't be opened.
+ */
+bool FileHandler::read(const QString &vFileName, QString &vContent)
 {
-    Q_UNUSED(vPath)
-    // qDebug() << QFileInfo::exists("/dev/sda");
+    QFile file(vFileName);
+    if (! file.open(QFile::Text | QFile::ReadOnly)) {
+        LOG_ERROR(QObject::tr("Can't open file for read (%1)").arg(vFileName));
+        return false;
+    }
+    QTextStream in(&file);
+    vContent = in.readAll();
+    return true;
 }
 
-bool FileHandler::mountUsb()
+/*!
+ * \brief   FileHandler::copyFolder
+ * \details Copies all the file and folders recursively.
+ * \param   vSource      - The source folder
+ * \param   vDestination - The destination folder
+ * \return  Tue on successful execution.
+ * \note    This method uses the Linux "cp -r vSource vDestination" command
+ *          Not a Thread-Safe.
+ *
+ */
+int FileHandler::copyFolder(const QString &vSource, const QString &vDestination )
 {
-    return true;
+    QString cp = "cp";
+    QStringList arguments;
+    arguments << "-r" << vSource << vDestination;
+    int result = QProcess::execute(cp, arguments);
+
+    cp = "sync;sync;sync;";
+    arguments.clear();
+    QProcess::execute(cp, arguments);
+
+    return result;
 }