buffer_appender_impl.h

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// Copyright (C) 2012-2015 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#ifndef LOG_BUFFER_H
#define LOG_BUFFER_H

#include <exceptions/exceptions.h>

#include <log4cplus/logger.h>
#include <log4cplus/spi/loggingevent.h>
#include <boost/shared_ptr.hpp>

namespace isc {
namespace log {
namespace internal {

class LogBufferAddAfterFlush : public isc::Exception {
public:
    LogBufferAddAfterFlush(const char* file, size_t line, const char* what) :
        isc::Exception(file, line, what)
    {}
};

typedef boost::shared_ptr<log4cplus::spi::InternalLoggingEvent> LogEventPtr;

typedef std::pair<std::string, LogEventPtr> LevelAndEvent;

typedef std::vector<LevelAndEvent> LogEventList;

class BufferAppender : public log4cplus::Appender {
public:
    BufferAppender() : flushed_(false) {}

    virtual ~BufferAppender();

    virtual void close() {}

    void flush();

    size_t getBufferSize() const;

protected:
    virtual void append(const log4cplus::spi::InternalLoggingEvent& event);
private:
    void flushStdout();

    LogEventList stored_;
    bool flushed_;
};

} // end namespace internal
} // end namespace log
} // end namespace isc

#endif // LOG_BUFFER_H