element_value.h

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// Copyright (C) 2019 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 ELEMENT_VALUE_H
#define ELEMENT_VALUE_H
 
#include <asiolink/io_address.h>
#include <cc/data.h>
#include <string>
 
namespace isc {
namespace data {
 
template<typename T>
class ElementValue {
public:
 
    T operator()(ConstElementPtr el) const {
        return (static_cast<T>(el->intValue()));
    }
};
 
template<>
class ElementValue<double> {
public:
 
    double operator()(ConstElementPtr el) const {
        return (el->doubleValue());
    }
};
 
template<>
class ElementValue<bool> {
public:
 
    bool operator()(ConstElementPtr el) const {
        return (el->boolValue());
    }
 
};
 
template<>
class ElementValue<std::string> {
public:
 
    std::string operator()(ConstElementPtr el) const {
        return (el->stringValue());
    }
};
 
template<>
class ElementValue<asiolink::IOAddress> {
public:
 
    asiolink::IOAddress operator()(ConstElementPtr el) const {
        return (asiolink::IOAddress(el->stringValue()));
    }
};
 
} // end of namespace isc::data
} // end of namespace isc
 
#endif // ELEMENT_VALUE_H