xorp

policy_statement.hh

00001 // -*- c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t -*-
00002 // vim:set sts=4 ts=8:
00003 
00004 // Copyright (c) 2001-2011 XORP, Inc and Others
00005 //
00006 // This program is free software; you can redistribute it and/or modify
00007 // it under the terms of the GNU General Public License, Version 2, June
00008 // 1991 as published by the Free Software Foundation. Redistribution
00009 // and/or modification of this program under the terms of any other
00010 // version of the GNU General Public License is not permitted.
00011 // 
00012 // This program is distributed in the hope that it will be useful, but
00013 // WITHOUT ANY WARRANTY; without even the implied warranty of
00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For more details,
00015 // see the GNU General Public License, Version 2, a copy of which can be
00016 // found in the XORP LICENSE.gpl file.
00017 // 
00018 // XORP Inc, 2953 Bunker Hill Lane, Suite 204, Santa Clara, CA 95054, USA;
00019 // http://xorp.net
00020 
00021 // $XORP: xorp/policy/policy_statement.hh,v 1.16 2008/10/02 21:57:59 bms Exp $
00022 
00023 #ifndef __POLICY_POLICY_STATEMENT_HH__
00024 #define __POLICY_POLICY_STATEMENT_HH__
00025 
00026 
00027 
00028 
00029 
00030 
00031 
00032 #include "libproto/config_node_id.hh"
00033 
00034 #include "policy/common/policy_exception.hh"
00035 
00036 #include "set_map.hh"
00037 #include "term.hh"
00038 
00039 class PolicyMap;
00040 typedef set<string> DEPS;
00041 
00045 class PolicyStatement :
00046     public NONCOPYABLE
00047 {
00048 public:
00052     class PolicyStatementErr : public PolicyException {
00053     public:
00054         PolicyStatementErr(const char* file, size_t line, 
00055                const string& init_why = "")   
00056     : PolicyException("PolicyStatementErr", file, line, init_why) {}  
00057     };
00058 
00059     
00060     typedef ConfigNodeIdMap<Term*> TermContainer;
00061 
00067     PolicyStatement(const string& name, SetMap& smap, PolicyMap& pmap);
00068     ~PolicyStatement();
00069 
00078     void add_term(const ConfigNodeId& order, Term* term);
00079   
00086     Term& find_term(const string& name) const;
00087 
00094     bool term_exists(const string& name) const;
00095      
00102     bool delete_term(const string& name);
00103 
00107     void set_policy_end();
00108 
00112     const string& name() const;
00113 
00119     bool accept(Visitor& v);
00120 
00124     TermContainer& terms();
00125 
00131     void set_dependency(const DEPS& sets, const DEPS& policies);
00132     
00133 private:
00134     typedef list<pair<ConfigNodeId, Term*> > OOL;
00135 
00139     void del_dependencies();
00140 
00147     TermContainer::iterator get_term_iter(const string& name);
00148     TermContainer::const_iterator get_term_iter(const string& name) const;
00149 
00156     OOL::iterator find_out_of_order_term(const ConfigNodeId& order);
00157 
00164     OOL::iterator find_out_of_order_term(const string& name);
00165     OOL::const_iterator find_out_of_order_term(const string& name) const;
00166 
00167     string              _name;
00168     TermContainer           _terms;
00169     list<pair<ConfigNodeId, Term*> >    _out_of_order_terms;
00170     DEPS                _sets;
00171     DEPS                _policies;
00172     SetMap&             _smap;
00173     PolicyMap&              _pmap;
00174 };
00175 
00176 #endif // __POLICY_POLICY_STATEMENT_HH__
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