Source: ../../policy/backend/set_manager.hh
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// vim:set sts=4 ts=8:
// Copyright (c) 2001-2005 International Computer Science Institute
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software")
// to deal in the Software without restriction, subject to the conditions
// listed in the XORP LICENSE file. These conditions include: you must
// preserve this copyright notice, and you cannot mention the copyright
// holders in advertising related to the Software without their permission.
// The Software is provided WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED. This
// notice is a summary of the XORP LICENSE file; the license in that file is
// legally binding.
// $XORP: xorp/policy/backend/set_manager.hh,v 1.2 2005/03/25 02:54:13 pavlin Exp $
#ifndef __POLICY_BACKEND_SET_MANAGER_HH__
#define __POLICY_BACKEND_SET_MANAGER_HH__
#include "policy/common/element_base.hh"
#include "policy/common/policy_exception.hh"
#include <string>
#include <map>
/**
* @short Class that owns all sets. It resolves set names to ElemSet's.
*
* Ideally, if the contents of a set changes, a filter should not be
* reconfigured, but only the sets. This is currently not the case, but there is
* enough structure to allow it.
*/
class SetManager {
public:
typedef map<string,Element*> SetMap;
/**
* @short Exception thrown when a set with an unknown name is requested.
*/
class SetNotFound : public PolicyException {
public:
SetNotFound(const string& err) : PolicyException(err) {}
};
SetManager();
~SetManager();
/**
* Return the corresponding ElemSet for the requested set name.
*
* @return the ElemSet requested.
* @param setid name of set wanted.
*/
const Element& getSet(const string& setid) const;
/**
* Resplace all sets with the given ones.
* Caller must not delete them.
*
* @param sets the new sets that should be used.
*/
void replace_sets(SetMap* sets);
/**
* Zap all sets.
*/
void clear();
private:
SetMap* _sets;
// not impl
SetManager(const SetManager&);
SetManager& operator=(const SetManager&);
};
#endif // __POLICY_BACKEND_SET_MANAGER_HH__
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