1 | #include "PingPong.h"
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2 | #include <boost/property_tree/ptree.hpp>
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3 | #include <boost/property_tree/json_parser.hpp>
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4 |
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5 | using namespace ariba;
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6 |
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7 | namespace ariba {
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8 | namespace application {
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9 | namespace pingpong {
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10 |
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11 | // logging
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12 | use_logging_cpp( PingPong );
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13 |
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14 | // the service that the pingpong wants to use
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15 | ServiceID PingPong::PINGPONG_SERVICEID = ServiceID( 111 );
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16 |
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17 | // construction
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18 | PingPong::PingPong( string config) :
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19 | node(),
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20 | pingId( 0 ),
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21 | config_file(config)
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22 | {
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23 | Timer::setInterval( 5000 );
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24 | }
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25 |
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26 | // destruction
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27 | PingPong::~PingPong() {
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28 | }
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29 |
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30 | // implementation of the startup interface
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31 | void PingPong::startup()
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32 | {
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33 | using boost::property_tree::ptree;
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34 | using boost::property_tree::json_parser::read_json;
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35 |
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36 | // set up logging
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37 | logging_rootlevel_debug();
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38 | logging_classlevel_debug(PingPong);
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39 |
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40 | logging_info( "[PINGPONG]\t starting up PingPong service ... " );
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41 |
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42 | // read config
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43 | ptree config;
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44 | try
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45 | {
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46 | read_json(config_file, config);
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47 | }
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48 | catch ( exception& e )
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49 | {
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50 | logging_warn("ERROR: Failed to read config file »" << config_file << "«: ");
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51 | logging_warn(e.what());
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52 | logging_warn("---> Using fallback config.");
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53 |
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54 | config.put("ariba.spovnet_name", "pingpong");
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55 | }
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56 |
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57 | // use node name also in the application
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58 | name = config.get("ariba.node_name", "NO_NAME");
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59 |
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60 | // bind communication and node listener
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61 | node.bind( this ); /*NodeListener*/
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62 | node.bind( this, PingPong::PINGPONG_SERVICEID); /*CommunicationListener*/
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63 |
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64 | // connecting
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65 | logging_debug( "connecting ... " );
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66 |
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67 | node.connect(config.get_child("ariba"));
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68 |
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69 | // ping pong started up...
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70 | logging_info( "[PINGPONG]\t pingpong starting up with"
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71 | << " [spovnetid " << node.getSpoVNetId().toString() << "]"
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72 | << " and [nodeid " << node.getNodeId().toString() << "]" );
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73 | }
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74 |
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75 | // implementation of the startup interface
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76 | void PingPong::shutdown() {
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77 |
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78 | logging_info( "[PINGPONG]\t pingpong service starting shutdown sequence ..." );
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79 |
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80 | // stop timer
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81 | Timer::stop();
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82 |
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83 | // leave spovnet
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84 | node.leave();
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85 |
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86 | // unbind communication and node listener
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87 | node.unbind( this ); /*NodeListener*/
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88 | node.unbind( this, PingPong::PINGPONG_SERVICEID ); /*CommunicationListener*/
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89 |
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90 | // now we are completely shut down
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91 | logging_info( "pingpong service shut down" );
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92 | }
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93 |
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94 | // timer event
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95 | void PingPong::eventFunction()
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96 | {
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97 | // We ping all nodes that are known in the overlay structure
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98 | // this can be all nodes (OneHop) overlay or just some neighbors
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99 | // in case of a Chord or Kademlia structure
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100 | // NOTE: Currently ariba only supports the Chord overlay.
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101 |
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102 | // In this sample we use auto-links: we just send out our message
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103 | // to the node and the link is established automatically. for more
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104 | // control we would use the node->establishLink function to create
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105 | // a link and start using the link in the CommunicationListener::onLinkUp
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106 | // function that is implemented further down in PingPong::onLinkUp
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107 |
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108 | // NOTE: This example still uses the old deprecated ariba::message messages
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109 | // with the ariba built-in serialization.
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110 | // For future applications please use the new reboost::message_t messages.
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111 | // Data is stored in high efficient zero-copy buffers of type
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112 | // reboost::shared_buffer_t. These buffers hold plain data, so you have to
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113 | // serialize the data "on your own".
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114 | // We recommend third-party serialization libraries like:
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115 | // - Protocol Buffers (http://en.wikipedia.org/wiki/Protocol_Buffers)
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116 | // - MessagePack (http://en.wikipedia.org/wiki/MessagePack)
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117 |
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118 |
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119 | // don't do anything if we have no neighbors
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120 | if ( node.getNeighborNodes().size() == 0)
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121 | {
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122 | logging_info( "[PINGPONG]\t +++ no neighbors +++" );
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123 | return;
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124 | }
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125 |
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126 |
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127 | pingId++;
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128 | logging_info( endl << "|||||||||| >>>>>>>>>>" << endl
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129 | << "[PINGPONG]\t PINGING overlay neighbors with ping id " << pingId );
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130 | PingPongMessage pingmsg( pingId, name );
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131 |
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132 | //-----------------------------------------------------------------------
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133 | // Option 1: get all neighboring nodes and send the message to each
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134 | //-----------------------------------------------------------------------
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135 | counter++;
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136 | if (counter<0 || counter>4) {
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137 | counter = 0;
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138 | string s;
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139 | for (int i=0; i<names.size();i++) {
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140 | if (i!=0) s+= ", ";
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141 | s = s+names[i];
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142 | }
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143 | logging_info("[PINGPONG]\t ----> I am " << name << " and I know " << s);
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144 | names.clear();
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145 | }
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146 |
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147 | vector<NodeID> nodes = node.getNeighborNodes();
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148 | BOOST_FOREACH( NodeID nid, nodes ){
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149 | logging_info( "[PINGPONG]\t sending ping message to " << nid.toString() );
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150 | node.sendMessage( pingmsg, nid, PingPong::PINGPONG_SERVICEID );
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151 | }
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152 |
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153 | //-----------------------------------------------------------------------
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154 | // Option 2: send a "broadcast message" that actually does the same thing
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155 | // internally, gets all neighboring nodes and sends the message
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156 | //-----------------------------------------------------------------------
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157 | // node->sendBroadcastMessage( pingmsg, PingPong::PINGPONG_SERVICEID );
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158 | }
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159 |
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160 | void PingPong::onJoinCompleted( const SpoVNetID& vid ) {
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161 | logging_info( "pingpong node join completed, spovnetid=" << vid.toString() );
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162 |
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163 | // start the timer to ping every second
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164 | Timer::start();
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165 | }
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166 |
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167 | void PingPong::onJoinFailed( const SpoVNetID& vid ) {
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168 | logging_error("pingpong node join failed, spovnetid=" << vid.toString() );
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169 | }
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170 |
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171 | void PingPong::onLeaveCompleted( const SpoVNetID& vid ){
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172 | logging_info("pingpong node leave completed, spovnetid=" << vid.toString() );
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173 | }
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174 |
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175 | void PingPong::onLeaveFailed( const SpoVNetID& vid ){
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176 | logging_error("pingpong node leave failed, spovnetid=" << vid.toString() );
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177 | }
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178 |
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179 | void PingPong::onMessage(const DataMessage& msg, const NodeID& remote, const LinkID& lnk) {
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180 | PingPongMessage* pingmsg = msg.getMessage()->convert<PingPongMessage> ();
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181 | bool found=false;
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182 | for (int i=0;i<names.size(); i++) if (names[i]==pingmsg->getName()) found=true;
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183 | if (!found) names.push_back(pingmsg->getName());
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184 | logging_info( endl << "<<<<<<<<<< ||||||||||" << endl
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185 | << "[PINGPONG]\t RECEIVED ping message on link "
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186 | << lnk.toString()
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187 | << " " << (node.isLinkDirect(lnk) ? "[DIRECT-LINK]" : "[INDIRECT-LINK]")
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188 | << " HopCount: " << node.getHopCount(lnk)
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189 | << " from node " << remote.toString()
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190 | << " (" << pingmsg->getName() << ")"
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191 | << ": " << pingmsg->info() );
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192 | delete pingmsg;
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193 | }
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194 |
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195 | void PingPong::onLinkUp(const LinkID& lnk, const NodeID& remote){
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196 | logging_info( "received link-up event for link " << lnk.toString()
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197 | << " and node " << remote.toString() );
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198 | }
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199 |
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200 | void PingPong::onLinkDown(const LinkID& lnk, const NodeID& remote){
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201 | logging_info( "received link-down event for link " << lnk.toString()
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202 | << " and node " << remote.toString() );
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203 | }
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204 |
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205 | void PingPong::onLinkChanged(const LinkID& lnk, const NodeID& remote){
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206 | logging_info( "link-changed event for link " << lnk.toString()
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207 | << " and node " << remote.toString() );
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208 | }
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209 |
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210 | bool PingPong::onLinkRequest(const NodeID& remote) {
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211 | logging_info( "node " << remote.toString() << " wants to build up a link with us ... allowing" );
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212 | return true;
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213 | }
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214 |
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215 | void PingPong::onLinkFail(const LinkID& lnk, const NodeID& remote){
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216 | logging_info( "received link-failed event for link " << lnk.toString()
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217 | << " and node " << remote.toString() );
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218 | }
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219 |
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220 | }}} // namespace ariba, application, pingpong
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