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21 
22 
23 
24 #ifndef INCLUDED_FILELOGGERIMPL_HXX
25 #define INCLUDED_FILELOGGERIMPL_HXX
26 
27 #include <odiapi/props/Logger.hxx>
28 #include <fstream>
29 #include <stack>
30 
31 namespace util {
32 
33 /** A file logger
34  */
35 class FileLoggerImpl : public util::Logger
36 {
37 public:
38     FileLoggerImpl(const std::string& fileName);
39 
40     virtual void beginTree();
41     virtual void endTree();
42 
43     virtual void beginNode(const std::string& nodeId, const std::string& value, const std::string& refersToNodeId, bool inUse);
44     virtual void endNode(const std::string& nodeId);
45 
46 private:
47     std::ofstream file_;
48     std::stack<std::string> nodeStack_;
49 };
50 
51 } // namespace util
52 
53 #endif // INCLUDED_LOGGER_HXX
54