Refactor creation and playback of OpenBCI CSV files

Supports Cyton mode only in this PR

Author: retiutut

OpenBCI_GUI/DataLogger.pde

@@ -145,15 +145,19 @@ class DataLogger {
             closeLogFile();
         }
         //open the new file
-        fileWriterODF = new DataWriterODF(sessionName, _fileName);
-        if (currentBoard instanceof AuxDataBoard) {
-            if (fileWriterAuxODF != null)
-                fileWriterAuxODF.closeFile();
-            fileWriterAuxODF = new DataWriterAuxODF(sessionName, _fileName);
-        }
+        try {
+            fileWriterODF = new DataWriterODF(sessionName, _fileName);
+            if (currentBoard instanceof AuxDataBoard) {
+                if (fileWriterAuxODF != null)
+                    fileWriterAuxODF.closeFile();
+                fileWriterAuxODF = new DataWriterAuxODF(sessionName, _fileName);
+            }
 
-        output_fname = fileWriterODF.fname;
-        println("OpenBCI_GUI: openNewLogFile: opened ODF output file: " + output_fname); //Print filename of new ODF file to console
+            output_fname = fileWriterODF.fname;
+            println("OpenBCI_GUI: openNewLogFile: opened ODF output file: " + output_fname); //Print filename of new ODF file to console
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
     }
 
     private void closeLogFile() {