Change the member variables for NexusException

The NXstatus is frequently not used or normally NX_ERROR. This
adds a member variable for the filename that the exceptoin was
created from.

Author: peterfpeterson

Framework/Nexus/inc/MantidNexus/NeXusException.hpp

@@ -26,24 +26,16 @@ class MANTID_NEXUS_DLL Exception : public std::runtime_error {
    * \param msg the string to pass a the error message
    * \param status
    */
-  Exception(const std::string &msg = "GENERIC ERROR", const NXstatus status = static_cast<NXstatus>(0));
-  /**
-   * Get the message associated with the exception
-   *
-   * \return the message associated with the exception
-   */
+  Exception(const std::string &msg = "GENERIC ERROR", const std::string &filename = "UNKNOWN");
+  /// \return the message associated with the exception
   virtual const char *what() const throw() override;
-  /**
-   * Get the status associated with the exception
-   *
-   * \return the status value associated with the exception
-   */
-  NXstatus status() const throw();
+  /// \return the status value associated with the exception
+  const std::string filename() const throw();
   /** Destructor for exception */
   virtual ~Exception() throw();
 
 private:
-  std::string m_what; ///< Error message for the exception
-  NXstatus m_status;  ///< Status value for the exception
+  std::string m_what;     ///< Error message for the exception
+  std::string m_filename; ///< File this exceptoin is associated with
 };
 }; // namespace NeXus

Framework/Nexus/src/NeXusException.cpp

@@ -8,12 +8,12 @@
 
 namespace NeXus {
 
-Exception::Exception(const std::string &msg, const NXstatus status)
-    : std::runtime_error(msg), m_what(msg), m_status(status) {}
+Exception::Exception(const std::string &msg, const std::string &filename)
+    : std::runtime_error(msg), m_what(msg), m_filename(filename) {}
 
 const char *Exception::what() const throw() { return this->m_what.c_str(); }
 
-NXstatus Exception::status() const throw() { return this->m_status; }
+const std::string Exception::filename() const throw() { return this->m_filename; }
 
 Exception::~Exception() throw() {}