fixed issue within file-reader when reading empty data-parts

sensors/offline/FileReader.h

@@ -156,16 +156,25 @@ namespace Offline {
 
 			while(!inp.eof() && !inp.bad()) {
 
+				// read the next line from the file
+				// this ensures that we will not read beyond one line within the next steps
+				std::string line;
+				std::getline(inp, line);
+
+				// create a stream for the read line
+				std::stringstream sline(line);
+
 				uint64_t ts;
 				char delim;
 				int idx = -1;
 				std::string data;
 
-				inp >> ts;
-				inp >> delim;
-				inp >> idx;
-				inp >> delim;
-				inp >> data;
+				// split the line
+				sline >> ts;
+				sline >> delim;
+				sline >> idx;
+				sline >> delim;
+				sline >> data;		// might be "" if there is no data
 
 				if		(idx == (int)Sensor::WIFI)			{parseWiFi(ts, data);}
 				else if	(idx == (int)Sensor::BEACON)		{parseBeacons(ts, data);}
@@ -267,6 +276,8 @@ namespace Offline {
 			WiFiMeasurements wifi;
 			Splitter s(data, sep);
 
+			//if (s.empty()) {return;}
+
 			// the -1 is due to some old files containing a trailing ";" resulting in one additional stray column
 			for (size_t i = 0; i < s.size()-1; i += 3) {
 

sensors/offline/Splitter.h

@@ -28,6 +28,8 @@ public:
 
 	size_t size() const {return split.size();}
 
+	bool empty() const {return split.empty();}
+
 private:
 
 	void build() {

tests/Tests.h

@@ -7,7 +7,8 @@
 
 static inline std::string getDataFile(const std::string& name) {
     //return "/mnt/data/workspaces/Indoor/tests/data/" + name;
-    return "/home/toni/Documents/programme/localization/Indoor/tests/data/" + name;
+	return "/mnt/vm/paper/diss/code/Indoor/tests/data/" + name;
+	//return "/home/toni/Documents/programme/localization/Indoor/tests/data/" + name;
 }
 
 

tests/data/fileReader1.txt

@@ -0,0 +1,5 @@
+136731;0;1.6424103;2.4756012;14.106628
+136728;8;
+136731;1;0.5573883;2.0301208;9.57785
+136733;3;-0.8585968;-1.057785;-1.1313019
+136831;8;68c63a9f81f1;2422;-55;5ccf7fc40df3;2422;-66

tests/sensors/offline/TestReader.cpp

@@ -0,0 +1,18 @@
+#ifdef WITH_TESTS
+
+#include "../../Tests.h"
+
+#include "../../../sensors/offline/FileReader.h"
+
+TEST(FileReader, test1) {
+
+	std::string file = "/tmp/FirstTest.csv";//getDataFile("fileReader1.txt");
+	Offline::FileReader reader(file);
+
+	int i = 0; (void) i;
+
+}
+
+
+
+#endif