A Discrete-Event Network Simulator
API
orbis-topology-reader.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2010 Universita' di Firenze, Italy
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation;
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  *
18  * Author: Tommaso Pecorella (tommaso.pecorella@unifi.it)
19  * Author: Valerio Sartini (valesar@gmail.com)
20  */
21 
22 #include <fstream>
23 #include <cstdlib>
24 #include <sstream>
25 #include "ns3/node-container.h"
26 #include "ns3/log.h"
27 #include "orbis-topology-reader.h"
28 
29 
36 namespace ns3 {
37 
38 NS_LOG_COMPONENT_DEFINE ("OrbisTopologyReader");
39 
40 NS_OBJECT_ENSURE_REGISTERED (OrbisTopologyReader);
41 
43 {
44  static TypeId tid = TypeId ("ns3::OrbisTopologyReader")
46  .SetGroupName ("TopologyReader")
47  .AddConstructor<OrbisTopologyReader> ()
48  ;
49  return tid;
50 }
51 
53 {
54  NS_LOG_FUNCTION (this);
55 }
56 
58 {
59  NS_LOG_FUNCTION (this);
60 }
61 
64 {
65  std::ifstream topgen;
66  topgen.open (GetFileName ().c_str ());
67  std::map<std::string, Ptr<Node> > nodeMap;
69 
70  if ( !topgen.is_open () )
71  {
72  return nodes;
73  }
74 
75  std::string from;
76  std::string to;
77  std::istringstream lineBuffer;
78  std::string line;
79 
80  int linksNumber = 0;
81  int nodesNumber = 0;
82 
83  while (!topgen.eof ())
84  {
85  line.clear ();
86  lineBuffer.clear ();
87  from.clear ();
88  to.clear ();
89 
90  getline (topgen,line);
91  lineBuffer.str (line);
92  lineBuffer >> from;
93  lineBuffer >> to;
94 
95  if ( (!from.empty ()) && (!to.empty ()) )
96  {
97  NS_LOG_INFO ( linksNumber << " From: " << from << " to: " << to );
98  if ( nodeMap[from] == 0 )
99  {
100  Ptr<Node> tmpNode = CreateObject<Node> ();
101  nodeMap[from] = tmpNode;
102  nodes.Add (tmpNode);
103  nodesNumber++;
104  }
105 
106  if (nodeMap[to] == 0)
107  {
108  Ptr<Node> tmpNode = CreateObject<Node> ();
109  nodeMap[to] = tmpNode;
110  nodes.Add (tmpNode);
111  nodesNumber++;
112  }
113 
114  Link link ( nodeMap[from], from, nodeMap[to], to );
115  AddLink (link);
116 
117  linksNumber++;
118  }
119  }
120  NS_LOG_INFO ("Orbis topology created with " << nodesNumber << " nodes and " << linksNumber << " links");
121  topgen.close ();
122 
123  return nodes;
124 }
125 
126 } /* namespace ns3 */
127 
keep track of a set of node pointers.
Topology file reader (Orbis-format type).
static TypeId GetTypeId(void)
Get the type ID.
virtual NodeContainer Read(void)
Main topology reading function.
Interface for input file readers management.
void AddLink(Link link)
Adds a link to the topology.
std::string GetFileName(void) const
Returns the input file name.
a unique identifier for an interface.
Definition: type-id.h:59
TypeId SetParent(TypeId tid)
Set the parent TypeId.
Definition: type-id.cc:922
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:205
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by ",...
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Definition: log.h:281
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
Definition: object-base.h:45
nodes
Definition: first.py:32
Every class exported by the ns3 library is enclosed in the ns3 namespace.
ns3::OrbisTopologyReader declaration.