ConfigMap.h

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/*
// $Id: //open/dev/fennel/common/ConfigMap.h#13 $
// Fennel is a library of data storage and processing components.
// Copyright (C) 2005-2009 The Eigenbase Project
// Copyright (C) 2005-2009 SQLstream, Inc.
// Copyright (C) 2005-2009 LucidEra, Inc.
// Portions Copyright (C) 1999-2009 John V. Sichi
//
// 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 2 of the License, or (at your option)
// any later version approved by The Eigenbase Project.
//
// 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 GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef Fennel_ConfigMap_Included
#define Fennel_ConfigMap_Included

#include <map>

#include "fennel/common/TraceSource.h"

FENNEL_BEGIN_NAMESPACE

class FENNEL_COMMON_EXPORT ConfigMap : public TraceSource
{
    typedef std::map<std::string,std::string> StringMap;
    typedef StringMap::iterator StringMapIter;
    typedef StringMap::const_iterator StringMapConstIter;

    StringMap paramVals;

public:
    explicit ConfigMap();

    virtual ~ConfigMap();

    void readParams(std::istream &paramStream);

    void dumpParams(std::ostream &dumpStream) const;

    void mergeFrom(const ConfigMap&);


    std::string getStringParam(
        std::string paramName,
        std::string defaultVal = "") const;

    int getIntParam(
        std::string paramName,
        int defaultVal = 0) const;

    long getLongParam(
        std::string paramName,
        long defaultVal = 0) const;

    bool getBoolParam(
        std::string paramName,
        bool defaultVal = false) const;

    bool isParamSet(std::string paramName) const;

    void setStringParam(
        std::string paramName,
        std::string paramVal);

    void clear();
};

FENNEL_END_NAMESPACE

#endif

// End ConfigMap.h

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