Files
boost_beast/beast/utility/WrappedSink.h
T
Scott Schurr 7c2e5f3ac8 Cleanups in beast::Journal:
The Journal API is affected.  There are two uses for the
Journal::Severity enum:

 o It is used to declare a threshold which log messages must meet
   in order to be logged.

 o It declares the current logging level which will be compared
   to the threshold.

Those uses that affect the threshold are now named threshold()
rather than severity() to make the uses easier to distinguish.

Additionally, Journal no longer carries a Severity variable.
All handling of the threshold() is now delegated to the
Journal::Sink.

Sinks are no longer constructed with a default threshold of
kWarning; their threshold must be passed in on construction.
2016-02-29 13:42:55 -05:00

97 lines
2.7 KiB
C++

//------------------------------------------------------------------------------
/*
This file is part of Beast: https://github.com/vinniefalco/Beast
Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#ifndef BEAST_UTILITY_WRAPPEDSINK_H_INCLUDED
#define BEAST_UTILITY_WRAPPEDSINK_H_INCLUDED
#include <beast/utility/Journal.h>
namespace beast {
/** Wraps a Journal::Sink to prefix its output with a string. */
// A WrappedSink both is a Sink and has a Sink:
// o It inherits from Sink so it has the correct interface.
// o It has a sink (reference) so it preserves the passed write() behavior.
// The data inherited from the base class is ignored.
class WrappedSink : public beast::Journal::Sink
{
private:
beast::Journal::Sink& sink_;
std::string prefix_;
public:
explicit
WrappedSink (beast::Journal::Sink& sink, std::string const& prefix = "")
: Sink (sink)
, sink_(sink)
, prefix_(prefix)
{
}
explicit
WrappedSink (beast::Journal const& journal, std::string const& prefix = "")
: WrappedSink (journal.sink(), prefix)
{
}
void prefix (std::string const& s)
{
prefix_ = s;
}
bool
active (beast::Journal::Severity level) const override
{
return sink_.active (level);
}
bool
console () const override
{
return sink_.console ();
}
void console (bool output) override
{
sink_.console (output);
}
beast::Journal::Severity
threshold() const override
{
return sink_.threshold();
}
void threshold (beast::Journal::Severity thresh) override
{
sink_.threshold (thresh);
}
void write (beast::Journal::Severity level, std::string const& text) override
{
using beast::Journal;
sink_.write (level, prefix_ + text);
}
};
}
#endif