metaproxy_1::FactoryFilter Class Reference

#include <factory_filter.hpp>

Inheritance diagram for metaproxy_1::FactoryFilter:

Collaboration diagram for metaproxy_1::FactoryFilter:

Classes
class	NotFound
class	Rep

Public Member Functions
	FactoryFilter ()
	true if registration ok
	~FactoryFilter ()
bool	add_creator (const std::string &fi, CreateFilterCallback cfc)
bool	drop_creator (std::string fi)
metaproxy_1::filter::Base *	create (std::string fi)
bool	exist (std::string fi)
bool	add_creator_dl (const std::string &fi, const std::string &path)
bool	have_dl_support ()

Private Types
typedef metaproxy_1::filter::Base *(*	CreateFilterCallback )()

Private Attributes
boost::scoped_ptr< Rep >	m_p

Detailed Description

Definition at line 33 of file factory_filter.hpp.

Member Typedef Documentation

typedef metaproxy_1::filter::Base*(* metaproxy_1::FactoryFilter::CreateFilterCallback)()

private

Definition at line 35 of file factory_filter.hpp.

Constructor & Destructor Documentation

metaproxy_1::FactoryFilter::FactoryFilter

(

)

true if registration ok

Definition at line 59 of file factory_filter.cpp.

                               : m_p(new mp::FactoryFilter::Rep)
{

}

metaproxy_1::FactoryFilter::~FactoryFilter

(

)

Definition at line 64 of file factory_filter.cpp.

{

}

Member Function Documentation

bool metaproxy_1::FactoryFilter::add_creator	(	const std::string &	fi,
		CreateFilterCallback	cfc
	)

Definition at line 69 of file factory_filter.cpp.

Referenced by metaproxy_1::FactoryStatic::FactoryStatic().

{
    return m_p->m_fcm.insert(Rep::CallbackMap::value_type(fi, cfc)).second;
}

bool metaproxy_1::FactoryFilter::add_creator_dl	(	const std::string &	fi,
		const std::string &	path
	)

Definition at line 113 of file factory_filter.cpp.

{
#if HAVE_DLFCN_H
    if (m_p->m_fcm.find(fi) != m_p->m_fcm.end())
    {
        return true;
    }

    std::string full_path = path + "/metaproxy_filter_" + fi + ".so";
    void *dl_handle = dlopen(full_path.c_str(), RTLD_GLOBAL|RTLD_NOW);
    if (!dl_handle)
    {
        const char *dl = dlerror();
        std::cout << "dlopen " << full_path << " failed. dlerror=" << dl <<
            std::endl;
        return false;
    }

    std::string full_name = "metaproxy_1_filter_" + fi;

    void *dlsym_ptr = dlsym(dl_handle, full_name.c_str());
    if (!dlsym_ptr)
    {
        std::cout << "dlsym " << full_name << " failed\n";
        return false;
    }
    struct metaproxy_1_filter_struct *s = (struct metaproxy_1_filter_struct *) dlsym_ptr;
    return add_creator(fi, s->creator);
#else
    return false;
#endif
}

mp::filter::Base * metaproxy_1::FactoryFilter::create

(

std::string

fi

)

Definition at line 92 of file factory_filter.cpp.

{
    Rep::CallbackMap::const_iterator it = m_p->m_fcm.find(fi);

    if (it == m_p->m_fcm.end()){
        std::string msg = "filter type '" + fi + "' not found";
            throw NotFound(msg);
    }
    // call create function
    return (it->second());
}

bool metaproxy_1::FactoryFilter::drop_creator

(

std::string

fi

)

Definition at line 76 of file factory_filter.cpp.

{
    return m_p->m_fcm.erase(fi) == 1;
}

bool metaproxy_1::FactoryFilter::exist

(

std::string

fi

)

Definition at line 81 of file factory_filter.cpp.

{
    Rep::CallbackMap::const_iterator it = m_p->m_fcm.find(fi);

    if (it == m_p->m_fcm.end())
    {
        return false;
    }
    return true;
}

bool metaproxy_1::FactoryFilter::have_dl_support

(

)

Definition at line 104 of file factory_filter.cpp.

{
#if HAVE_DLFCN_H
    return true;
#else
    return false;
#endif
}

Member Data Documentation

boost::scoped_ptr<Rep> metaproxy_1::FactoryFilter::m_p

private

Definition at line 60 of file factory_filter.hpp.

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The documentation for this class was generated from the following files:

• factory_filter.hpp
• factory_filter.cpp