ostream_trace_listener.h

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#pragma once
#include <ostream>
#include "trace_listener.h"

namespace xtd {
  namespace diagnostics {
    class ostream_trace_listener : public xtd::diagnostics::trace_listener {
    public:
      ostream_trace_listener(const std::ostream& ostream);
      ~ostream_trace_listener();
      
      virtual const std::ostream& ostream() const;
      virtual void ostream(const std::ostream& ostream);

      void close() override;
      void flush() override {
#if !defined(NDEBUG) || defined(DEBUG) || defined(TRACE)
        flush_();
#endif
      }
      
      using xtd::diagnostics::trace_listener::write;
      void write(const xtd::ustring& message) override {
#if !defined(NDEBUG) || defined(DEBUG) || defined(TRACE)
        write_(message);
#endif
      }
      
      using xtd::diagnostics::trace_listener::write_line;
      void write_line(const xtd::ustring& message) override {
#if !defined(NDEBUG) || defined(DEBUG) || defined(TRACE)
        write_line_(message);
#endif
      }
      
    private:
      void flush_();
      void write_(const xtd::ustring& message);
      void write_line_(const xtd::ustring& message);
      std::ostream ostream_ {nullptr};
    };
  }
}