NS-3 based Named Data Networking (NDN) simulator
ndnSIM 2.3: NDN, CCN, CCNx, content centric networks
API Documentation
rocketfuel-weights-reader.cpp
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
20 // Based on the code by Hajime Tazaki <tazaki@sfc.wide.ad.jp>
21 
23 
24 #include "ns3/nstime.h"
25 #include "ns3/log.h"
26 #include "ns3/assert.h"
27 #include "ns3/names.h"
28 #include "ns3/net-device-container.h"
29 #include "ns3/point-to-point-helper.h"
30 #include "ns3/point-to-point-net-device.h"
31 #include "ns3/internet-stack-helper.h"
32 #include "ns3/ipv4-address-helper.h"
33 #include "ns3/ipv4-global-routing-helper.h"
34 #include "ns3/drop-tail-queue.h"
35 #include "ns3/ipv4-interface.h"
36 #include "ns3/ipv4.h"
37 #include "ns3/string.h"
38 #include "ns3/pointer.h"
39 #include "ns3/uinteger.h"
40 #include "ns3/ipv4-address.h"
41 
42 #include "ns3/mobility-model.h"
43 
44 #include <regex.h>
45 
46 #include <boost/foreach.hpp>
47 #include <boost/lexical_cast.hpp>
48 
49 #include <iomanip>
50 #include <set>
51 
52 using namespace std;
53 
54 NS_LOG_COMPONENT_DEFINE("RocketfuelWeightsReader");
55 
56 namespace ns3 {
57 
58 RocketfuelWeightsReader::RocketfuelWeightsReader(const std::string& path /*=""*/,
59  double scale /*=1.0*/)
60  : AnnotatedTopologyReader(path, scale)
61  , m_defaultBandwidth("100Mbps")
62 {
63  NS_LOG_FUNCTION(this);
64 
65  // TypeId tid;
66  // bool ok = TypeId::LookupByNameFailSafe ("ns3::SpringMobilityModel", &tid);
67  // if (ok)
68  // SetMobilityModel ("ns3::SpringMobilityModel");
69  // else
70  // Use default mobility model (supplied by AnnotatedTopologyReader)
71 }
72 
74 {
75  NS_LOG_FUNCTION(this);
76 }
77 
78 void
80 {
81  m_inputType = inputType;
82 }
83 
84 NodeContainer
86 {
87  if (m_inputType == POSITIONS)
89 
90  ifstream topgen;
91  topgen.open(GetFileName().c_str());
92 
93  if (!topgen.is_open()) {
94  NS_LOG_ERROR("Cannot open file " << GetFileName() << " for reading");
95  return m_nodes;
96  }
97 
98  map<string, set<string>> processedLinks; // to eliminate duplications
99  bool repeatedRun = LinksSize() > 0;
100  std::list<Link>::iterator linkIterator = m_linksList.begin();
101 
102  while (!topgen.eof()) {
103  string line;
104  getline(topgen, line);
105  if (line == "")
106  continue;
107  if (line[0] == '#')
108  continue; // comments
109 
110  // NS_LOG_DEBUG ("Input: [" << line << "]");
111 
112  istringstream lineBuffer(line);
113  string from, to, attribute;
114 
115  lineBuffer >> from >> to >> attribute;
116 
117  if (processedLinks[to].size() != 0
118  && processedLinks[to].find(from) != processedLinks[to].end()) {
119  continue; // duplicated link
120  }
121  processedLinks[from].insert(to);
122 
123  Ptr<Node> fromNode = Names::Find<Node>(m_path, from);
124  if (fromNode == 0) {
125  fromNode = CreateNode(from, 0);
126  }
127 
128  Ptr<Node> toNode = Names::Find<Node>(m_path, to);
129  if (toNode == 0) {
130  toNode = CreateNode(to, 0);
131  }
132 
133  Link* link;
134  if (!repeatedRun)
135  link = new Link(fromNode, from, toNode, to);
136  else {
137  NS_ASSERT(linkIterator != m_linksList.end());
138  link = &(*linkIterator);
139 
140  linkIterator++;
141  }
142 
143  switch (m_inputType) {
144  case LINKS: {
145  // links only
146  // do nothing
147  break;
148  }
149  case WEIGHTS: {
150  if (attribute == "")
151  attribute = "1";
152  uint16_t metric = boost::lexical_cast<uint16_t>(attribute);
153  link->SetAttribute("OSPF", boost::lexical_cast<string>(metric));
154  break;
155  }
156  case LATENCIES:
157  if (attribute == "")
158  attribute = "1";
159 
160  link->SetAttribute("DataRate", m_defaultBandwidth);
161  link->SetAttribute("Delay", attribute + "ms");
162  if (!m_queue.empty()) {
163  link->SetAttribute("MaxPackets", m_queue);
164  }
165  break;
166  default:
167  ; //
168  }
169 
170  NS_LOG_DEBUG("Link " << from << " <==> " << to << " / " << attribute);
171  if (!repeatedRun) {
172  AddLink(*link);
173  delete link;
174  }
175  }
176 
177  topgen.close();
178 
179  if (!repeatedRun) {
180  NS_LOG_INFO("Rocketfuel topology created with " << m_nodes.GetN() << " nodes and "
181  << LinksSize() << " links");
182  }
183  return m_nodes;
184 }
185 
186 void
188 {
189  ApplySettings();
190 
191  // SpringMobilityHelper::InstallSprings (LinksBegin (), LinksEnd ());
192 }
193 
194 } /* namespace ns3 */
virtual NodeContainer Read(void)
Main topology reading function.
STL namespace.
This class reads annotated topology and apply settings to the corresponding nodes and links...
Table::const_iterator iterator
Definition: cs-internal.hpp:41
void ApplySettings()
This method applies setting to corresponding nodes and links NetDeviceContainer must be allocated Nod...
Copyright (c) 2011-2015 Regents of the University of California.
virtual NodeContainer Read()
Main annotated topology reading function.
Ptr< Node > CreateNode(const std::string name, uint32_t systemId)