HttpSession.h

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#ifndef HTTP_SESSION_H
#define HTTP_SESSION_H

#include <memory>
#include <string>
#include <vector>
#include <servlet/ServletContext.h>
#include <boost/shared_ptr.hpp>

namespace servlet {

    class HttpSession {
    public:
        virtual ~HttpSession()
            { }
    
        virtual long  getCreationTime() const=0;
    
        virtual std::string  getId() const=0;
    
        virtual long  getLastAccessedTime() const=0;
    
        virtual const ServletContext&  getServletContext() const=0;
    
        virtual void  setMaxInactiveInterval(int interval)=0;
    
        virtual int  getMaxInactiveInterval() const=0;
    
        virtual boost::shared_ptr<void> getAttribute(const std::string& name)=0;
        template <typename T>
     T getAttribute(const std::string& name);
    
        virtual std::auto_ptr< std::vector<std::string> > getAttributeNames() const=0;
    
        virtual void setAttribute(const std::string& name, boost::shared_ptr<void> value)=0;
        template <typename T>
     void setAttribute(const std::string& name, boost::shared_ptr<T> value)
    {
        setAttribute(name, static_cast<boost::shared_ptr<void> >(value));
    }
        template <typename T>
     void setAttribute(const std::string& name, const T& value);
    
        virtual bool hasAttribute(const std::string& name) const = 0;
    
        virtual void  removeAttribute(const std::string& name)=0;
    
        virtual void  invalidate()=0;
    
        virtual bool  isNew() const=0;
    };
    template<typename T>
    T HttpSession::getAttribute(const std::string& name) {    
        const boost::shared_ptr<void> value = getAttribute(name);
        if(!value)
            return T();
        return *boost::static_pointer_cast<T>(value);
    }
    template<typename T>
    void HttpSession::setAttribute(const std::string& name, const T& value) {
    setAttribute(name,boost::shared_ptr<void>(new T(value)));
    }

}//namespace

#endif/*HTTP_SESSION_H*/