RuleCustomLeafCollSize.h

// RuleCustomLeafCollSize.h:
// -------------------------
//

#ifndef __IPSDKBASEPROCESSING_RULECUSTOMLEAFCOLLSIZE_H__
#define __IPSDKBASEPROCESSING_RULECUSTOMLEAFCOLLSIZE_H__

#include <IPSDKBaseProcessing/Rule/Attribute/DataItem/LeafColl/Size/BaseTLeafCollSizeRule.h>
#include <boost/function.hpp>

namespace ipsdk {
namespace processor {


template <typename AttributeType,
          typename LeafCollType,
          eValueComparisonRuleType::domain ValueComparisonRuleType>
class RuleCustomLeafCollSize : public BaseTLeafCollSizeRule<ValueComparisonRuleType>
{
// predefined public types
public:
    typedef typename boost::enable_if<typename boost::is_same<boost::mpl::int_<AttributeType::g_attributeType>,
                                                              boost::mpl::int_<eAttributeType::eAT_DataItem> >::type,
                                      typename AttributeType::ValueType>::type DataItemType;

    typedef typename boost::enable_if<typename boost::is_same<boost::mpl::int_<LeafCollType::g_itemType>,
                                                              boost::mpl::int_<eDataItemType::eDIT_LeafColl> >::type,
                                      typename LeafCollType::ValueType>::type ValueType;

    typedef boost::function<ipUInt32 ()> CustomSizeFun;

public:
    RuleCustomLeafCollSize() {}
    ~RuleCustomLeafCollSize() {}

// methods
public:
    void                            init(const boost::weak_ptr<const AttributeType>& pAttribute,
                                         CustomSizeFun customSizeFun);

protected:
    std::string                     getAttributeName() const;

    ipUInt32                        getTargetSize() const;

    ipUInt32                        getCollSize() const;


// attributes
protected:
    CustomSizeFun        _customSizeFun;
};


template <typename AttributeType, typename LeafCollType, eValueComparisonRuleType::domain ValueComparisonRuleType>
inline void
RuleCustomLeafCollSize<AttributeType, LeafCollType, ValueComparisonRuleType>::init(const boost::weak_ptr<const AttributeType>& pAttribute,
                                                                                   CustomSizeFun customSizeFun)
{
    // store input value
    _customSizeFun = customSizeFun;

    // call of base class initialization method
    BaseTLeafCollSizeRule<ValueComparisonRuleType>::initBase(pAttribute);
}

template <typename AttributeType, typename LeafCollType, eValueComparisonRuleType::domain ValueComparisonRuleType>
inline std::string
RuleCustomLeafCollSize<AttributeType, LeafCollType, ValueComparisonRuleType>::getAttributeName() const
{
    return AttributeType::getObjectNameStr() + "::" +
        DataItemType::template getNodeNameStr<LeafCollType>() + "{size}";
}

template <typename AttributeType, typename LeafCollType, eValueComparisonRuleType::domain ValueComparisonRuleType>
inline ipUInt32
RuleCustomLeafCollSize<AttributeType, LeafCollType, ValueComparisonRuleType>::getTargetSize() const
{
    return _customSizeFun();
}

template <typename AttributeType, typename LeafCollType, eValueComparisonRuleType::domain ValueComparisonRuleType>
inline ipUInt32
RuleCustomLeafCollSize<AttributeType, LeafCollType, ValueComparisonRuleType>::getCollSize() const
{
    // retrieve associated attribute
    const AttributeType& derivedAttribute = static_cast<const AttributeType&>(this->getAttribute1());

    return derivedAttribute.getNode().template getSize<LeafCollType>();
}


} // end of namespace processor
} // end of namespace ipsdk

#endif // __IPSDKBASEPROCESSING_RULECUSTOMLEAFCOLLSIZE_H__