xorp

unexpanded_program.hh

00001 // -*- c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t -*-
00002 
00003 // Copyright (c) 2001-2009 XORP, Inc.
00004 //
00005 // This program is free software; you can redistribute it and/or modify
00006 // it under the terms of the GNU General Public License, Version 2, June
00007 // 1991 as published by the Free Software Foundation. Redistribution
00008 // and/or modification of this program under the terms of any other
00009 // version of the GNU General Public License is not permitted.
00010 // 
00011 // This program is distributed in the hope that it will be useful, but
00012 // WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For more details,
00014 // see the GNU General Public License, Version 2, a copy of which can be
00015 // found in the XORP LICENSE.gpl file.
00016 // 
00017 // XORP Inc, 2953 Bunker Hill Lane, Suite 204, Santa Clara, CA 95054, USA;
00018 // http://xorp.net
00019 
00020 // $XORP: xorp/rtrmgr/unexpanded_program.hh,v 1.6 2008/10/02 21:58:26 bms Exp $
00021 
00022 #ifndef __RTRMGR_UNEXPANDED_PROGRAM_HH__
00023 #define __RTRMGR_UNEXPANDED_PROGRAM_HH__
00024 
00025 
00026 class MasterConfigTreeNode;
00027 class ProgramAction;
00028 
00029 //
00030 // We want to build a queue of programs, but the variables needed for those
00031 // programs may depend on the results from previous programs.  So we need to
00032 // delay expanding them until we're actually going to send the program
00033 // request.
00034 //
00035 
00036 class UnexpandedProgram {
00037 public:
00038     UnexpandedProgram(const MasterConfigTreeNode& node,
00039               const ProgramAction& action);
00040     ~UnexpandedProgram();
00041 
00051     string expand(string& errmsg) const;
00052 
00053     string str() const;
00054 
00055 private:
00056     const MasterConfigTreeNode& _node;
00057     const ProgramAction& _action;
00058 };
00059 
00060 #endif // __RTRMGR_UNEXPANDED_PROGRAM_HH__
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