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//
// VMime library (http://vmime.sourceforge.net)
// Copyright (C) 2002-2004 Vincent Richard <[email protected]>
//
// 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 2 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 GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
#ifndef VMIME_MESSAGING_SERVICEFACTORY_HPP_INCLUDED
#define VMIME_MESSAGING_SERVICEFACTORY_HPP_INCLUDED
#include <map>
#include "../types.hpp"
#include "../base.hpp"
#include "../utility/singleton.hpp"
#include "serviceInfos.hpp"
#include "authenticator.hpp"
#include "progressionListener.hpp"
#include "timeoutHandler.hpp"
#include "url.hpp"
namespace vmime {
namespace messaging {
class service;
class session;
/** A factory to create 'service' objects for a specified protocol.
*/
class serviceFactory : public utility::singleton <serviceFactory>
{
friend class utility::singleton <serviceFactory>;
protected:
serviceFactory();
~serviceFactory();
public:
class registeredService
{
friend class serviceFactory;
protected:
virtual ~registeredService() { }
public:
virtual service* create(session& sess, authenticator* auth) = 0;
virtual const string& name() const = 0;
virtual const serviceInfos& infos() const = 0;
};
private:
template <class S>
class registeredServiceImpl : public registeredService
{
friend class serviceFactory;
protected:
registeredServiceImpl(const string& name)
: m_name(name), m_servInfos(S::infosInstance())
{
}
public:
service* create(session& sess, authenticator* auth)
{
return new S(sess, auth);
}
const serviceInfos& infos() const
{
return (m_servInfos);
}
const string& name() const
{
return (m_name);
}
private:
const string m_name;
const serviceInfos& m_servInfos;
};
typedef std::map <string, registeredService*> ProtoMap;
ProtoMap m_protoMap;
public:
template <class S>
void registerName(const string& protocol)
{
const string name = vmime::toLower(protocol);
m_protoMap.insert(ProtoMap::value_type(name,
new registeredServiceImpl <S>(name)));
}
service* create(session& sess, const string& protocol, authenticator* auth = NULL);
service* create(session& sess, const url& u, authenticator* auth = NULL);
const registeredService& operator[](const string& protocol) const;
class iterator;
class const_iterator
{
friend class serviceFactory;
public:
const_iterator() { }
const_iterator(const const_iterator& it) : m_it(it.m_it) { }
const_iterator(const iterator& it) : m_it(it.m_it) { }
const_iterator& operator=(const const_iterator& it) { m_it = it.m_it; return (*this); }
const registeredService& operator*() const { return (*(*m_it).second); }
const registeredService* operator->() const { return ((*m_it).second); }
const_iterator& operator++() { ++m_it; return (*this); }
const_iterator operator++(int) { return (m_it++); }
const_iterator& operator--() { --m_it; return (*this); }
const_iterator operator--(int) { return (m_it--); }
const bool operator==(const const_iterator& it) const { return (m_it == it.m_it); }
const bool operator!=(const const_iterator& it) const { return (m_it != it.m_it); }
private:
const_iterator(const ProtoMap::const_iterator it) : m_it(it) { }
ProtoMap::const_iterator m_it;
};
class iterator
{
friend class serviceFactory;
friend class serviceFactory::const_iterator;
public:
iterator() { }
iterator(const iterator& it) : m_it(it.m_it) { }
iterator& operator=(const iterator& it) { m_it = it.m_it; return (*this); }
registeredService& operator*() const { return (*(*m_it).second); }
registeredService* operator->() const { return ((*m_it).second); }
iterator& operator++() { ++m_it; return (*this); }
iterator operator++(int) { return (m_it++); }
iterator& operator--() { --m_it; return (*this); }
iterator operator--(int) { return (m_it--); }
const bool operator==(const iterator& it) const { return (m_it == it.m_it); }
const bool operator!=(const iterator& it) const { return (m_it != it.m_it); }
private:
iterator(const ProtoMap::iterator it) : m_it(it) { }
ProtoMap::iterator m_it;
};
iterator begin() { return iterator(m_protoMap.begin()); }
iterator end() { return iterator(m_protoMap.end()); }
const_iterator begin() const { return const_iterator(m_protoMap.begin()); }
const_iterator end() const { return const_iterator(m_protoMap.end()); }
};
} // messaging
} // vmime
#endif // VMIME_MESSAGING_SERVICEFACTORY_HPP_INCLUDED
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