JGetMessage.cc File Reference

Auxiliary program to receive messages from ControlHost server. More...

#include <string>
#include <iostream>
#include <sstream>
#include <iomanip>
#include <set>
#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"
#include "JNet/JControlHost.hh"
#include "JSystem/JDate.hh"

Go to the source code of this file.

Functions
int	main (int argc, const char *argv[])

Detailed Description

Auxiliary program to receive messages from ControlHost server.

The option -H <hostname>[:port] correponds to the hostname and the port of the server, respectively. The options -t and -T correspond to the ControlHost tag(s). Each message tag will be printed and for the latter also the message content. The program will terminate when it receives message <stop>.

Author

mdejong

Definition in file JGetMessage.cc.

Function Documentation

int main	(	int	argc,
		const char *	argv[]
	)

Definition at line 24 of file JGetMessage.cc.

{
  using namespace std;

  string          hostname;
  set<JNET::JTag> tagList;
  set<JNET::JTag> TagList;
  bool            date;
  int             debug;
  
  try {

    JParser<> zap("Auxiliary program to receive messages from ControlHost server.");

    zap['H'] = make_field(hostname)        = "localhost";
    zap['t'] = make_field(tagList);
    zap['T'] = make_field(TagList);
    zap['D'] = make_field(date);
    zap['d'] = make_field(debug)           = 3;

    zap['t'] = JPARSER::initialised();
    zap['T'] = JPARSER::initialised();

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }


  if (tagList.empty() && TagList.empty()) {
    FATAL("No tags specified.");
  }

  using namespace JPP;

  JControlHost::Throw(true); 
  
  try {

    JControlHost in(hostname);

    {
      JSubscriptionList buffer;

      for (set<JTag>::const_iterator i = tagList.begin(); i != tagList.end(); ++i) {
        buffer.add(JSubscriptionAny(*i));
      }
      
      for (set<JTag>::const_iterator i = TagList.begin(); i != TagList.end(); ++i) {
        buffer.add(JSubscriptionAll(*i));
      }

      in.Subscribe(buffer);
      in.SendMeAlways();
    }


    JPrefix      prefix;
    vector<char> buffer;

    for (const string stop("stop"); buffer.size() != stop.size() || string(buffer.data(), stop.size()) != stop; ) {

      in.WaitHead(prefix);

      buffer.resize(prefix.getSize());
      
      in.GetFullData(buffer.data(), buffer.size());

      if (date) {
        cout << getDateAndTime() << ' ';
      }
      
      cout << left << setw(8) << prefix.getTag() << ' ' << right << setw(8) << prefix.getSize();

      if (TagList.find(prefix) != TagList.end()) {
        cout << ' ' << string(buffer.data(), buffer.size());
      }
        
      cout << endl;
    }
  }    
  catch(const JControlHostException& error) {
    ERROR(error << endl);
  }
}