private Course ReadCourse(MemoryStream courseStream)
 {
     var sqlExecutor = new SqlExecutor(SqlServerConfiguration.ReadAppSettings());
     var textExpander = new TextExpander(sqlExecutor);
     return new CourseLoader(sqlExecutor, textExpander).Load(courseStream);
 }
 public CourseLoader(SqlExecutor executor, TextExpander textExpander)
 {
     m_Executor = executor;
     m_TextExpander = textExpander;
 }