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 
30 namespace ns3 {
31 
32 NS_LOG_COMPONENT_DEFINE ("OrbisTopologyReader");
33 
34 NS_OBJECT_ENSURE_REGISTERED (OrbisTopologyReader);
35 
37 {
38  static TypeId tid = TypeId ("ns3::OrbisTopologyReader")
40  .SetGroupName ("TopologyReader")
41  .AddConstructor<OrbisTopologyReader> ()
42  ;
43  return tid;
44 }
45 
47 {
48  NS_LOG_FUNCTION (this);
49 }
50 
52 {
53  NS_LOG_FUNCTION (this);
54 }
55 
58 {
59  std::ifstream topgen;
60  topgen.open (GetFileName ().c_str ());
61  std::map<std::string, Ptr<Node> > nodeMap;
63 
64  if ( !topgen.is_open () )
65  {
66  return nodes;
67  }
68 
69  std::string from;
70  std::string to;
71  std::istringstream lineBuffer;
72  std::string line;
73 
74  int linksNumber = 0;
75  int nodesNumber = 0;
76 
77  while (!topgen.eof ())
78  {
79  line.clear ();
80  lineBuffer.clear ();
81  from.clear ();
82  to.clear ();
83 
84  getline (topgen,line);
85  lineBuffer.str (line);
86  lineBuffer >> from;
87  lineBuffer >> to;
88 
89  if ( (!from.empty ()) && (!to.empty ()) )
90  {
91  NS_LOG_INFO ( linksNumber << " From: " << from << " to: " << to );
92  if ( nodeMap[from] == 0 )
93  {
94  Ptr<Node> tmpNode = CreateObject<Node> ();
95  nodeMap[from] = tmpNode;
96  nodes.Add (tmpNode);
97  nodesNumber++;
98  }
99 
100  if (nodeMap[to] == 0)
101  {
102  Ptr<Node> tmpNode = CreateObject<Node> ();
103  nodeMap[to] = tmpNode;
104  nodes.Add (tmpNode);
105  nodesNumber++;
106  }
107 
108  Link link ( nodeMap[from], from, nodeMap[to], to );
109  AddLink (link);
110 
111  linksNumber++;
112  }
113  }
114  NS_LOG_INFO ("Orbis topology created with " << nodesNumber << " nodes and " << linksNumber << " links");
115  topgen.close ();
116 
117  return nodes;
118 }
119 
120 } /* namespace ns3 */
121 
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by "...
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
Definition: object-base.h:45
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:204
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Definition: log.h:280
void AddLink(Link link)
Adds a link to the topology.
Interface for input file readers management.
nodes
Definition: first.py:25
Topology file reader (Orbis-format type).
Every class exported by the ns3 library is enclosed in the ns3 namespace.
keep track of a set of node pointers.
std::string GetFileName(void) const
Returns the input file name.
static TypeId GetTypeId(void)
Get the type ID.
virtual NodeContainer Read(void)
Main topology reading function.
a unique identifier for an interface.
Definition: type-id.h:58
TypeId SetParent(TypeId tid)
Set the parent TypeId.
Definition: type-id.cc:915