PolicyString.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_POLICY_STRING_H
#define LSST_PEX_POLICY_STRING_H

#include <boost/shared_ptr.hpp>
#include <boost/regex.hpp>

#include "lsst/pex/policy/PolicySource.h"
#include "lsst/pex/policy/SupportedFormats.h"
#include "lsst/daf/base/Persistable.h"

namespace lsst {
namespace pex {
namespace policy {

class PolicyString : public PolicySource, public lsst::daf::base::Persistable {
public:

    explicit PolicyString(const std::string& data,
                          const SupportedFormats::Ptr& fmts = defaultFormats);

    PolicyString(const SupportedFormats::Ptr& fmts = defaultFormats);

    const std::string& getData() const { return _data; }


    virtual const std::string& getFormatName();
    const std::string& getFormatName() const {
        return const_cast<PolicyString*>(this)->getFormatName();
    }


    virtual void load(Policy& policy);
    void load(Policy& policy) const { 
        const_cast<PolicyString*>(this)->load(policy);
    }

    static const boost::regex SPACE_RE;   
    static const boost::regex COMMENT;    

    static const boost::regex CONTENTID;  

protected:
    std::string _data;

private:
    const std::string& cacheName(const std::string& name) {
        _format = name;
        return _format;
    }

    std::string _format;
    PolicyParserFactory::Ptr _pfact;

    // inherits SupportedFormats _formats from PolicySource
};

}}}  // end namespace lsst::pex::policy

#endif // LSST_PEX_POLICY_STRING_H