DualLog.h

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// -*- lsst-c++ -*-

/* 
 * LSST Data Management System
 * Copyright 2008, 2009, 2010 LSST Corporation.
 * 
 * This product includes software developed by the
 * LSST Project (http://www.lsst.org/).
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the LSST License Statement and 
 * the GNU General Public License along with this program.  If not, 
 * see <http://www.lsstcorp.org/LegalNotices/>.
 */
 
#ifndef LSST_PEX_DUALLOG_H
#define LSST_PEX_DUALLOG_H

#include "lsst/pex/logging/ScreenLog.h"

#include <fstream>

namespace lsst {
namespace pex {
namespace logging {

class DualLog : public ScreenLog {
public:

    DualLog(const lsst::daf::base::PropertySet& preamble, const std::string& filename, 
            int filethresh=0, int screenthresh=0, bool screenVerbose=false);
            
    DualLog(const std::string& filename, int filethresh=0, int screenthresh=0, 
            bool screenVerbose=false);
            

    DualLog(const DualLog& that) 
        : ScreenLog(that), _file(that._file) 
    { }

    virtual ~DualLog();

    DualLog& operator=(const DualLog& that) {
        if (this == &that) return *this;
        dynamic_cast<ScreenLog*>(this)->operator=(that);
        _file = that._file; 
        return *this;
    }

    int getFileThreshold() { return _file->getThreshold(); }

    void setFileThreshold(int thresh) { _file->setThreshold(thresh); }

    static void createDefaultLog(const lsst::daf::base::PropertySet& preamble,
                                 const std::string& filename, 
                                 int filethresh=Log::INHERIT_THRESHOLD, 
                                 int screenthresh=0, bool screenVerbose=false);
    static void createDefaultLog(const std::string& filename, 
                                 int filethresh=Log::INHERIT_THRESHOLD, 
                                 int screenthresh=0, bool screenVerbose=false);


private:
    void _init(const std::string& filename, int filethresh);

    LogDestination *_file;
    std::ofstream *fstrm;
};

}}}     // end lsst::pex::logging

#endif  // end LSST_PEX_DUALLOG_H