JobCDisplayModule.cxx

Go to the documentation of this file.

// $Id: JobCDisplayModule.cxx,v 1.6 2002/12/13 17:40:20 rhatcher Exp $
//
// Interface job control to an event display package
//
// messier@huhepl.harvard.edu
#include "JobControl/JobCDisplayModule.h"
#include <string>
#include <cstring> // strlen
#include "MessageService/MsgService.h"
#include "JobControl/JobCResult.h"
#include "JobControl/JobCEnv.h"
#include "JobControl/JobCommand.h"
#include "JobControl/JobCModuleRegistry.h"
#include "JobControl/JobCModuleProxy.h"

CVSID("$Id: JobCDisplayModule.cxx,v 1.6 2002/12/13 17:40:20 rhatcher Exp $");
JOBMODULE(JobCDisplayModule,"Display","Event display interface");

//......................................................................

JobCDisplayModule::JobCDisplayModule() : fDisplayModule(0) { }

//......................................................................

JobCDisplayModule::~JobCDisplayModule() 
{ 
  if (fDisplayModule) this->Stop(0);
}

//......................................................................

JobCResult JobCDisplayModule::Ana(const MomNavigator *mom) 
{ 
  if (fDisplayModule) {
    return fDisplayModule->Ana(mom);
  }
  return JobCResult::kAOK;
}

//......................................................................

JobCResult JobCDisplayModule::Reco(MomNavigator *mom) 
{ 
  if (fDisplayModule) {
    return fDisplayModule->Reco(mom);
  }
  return JobCResult::kAOK;
}

//......................................................................

void JobCDisplayModule::BeginJob()
{
//======================================================================
// Executed at the start of a new job
//======================================================================
  // Pass the begin job along to the display implementation
  if (fDisplayModule) {
    fDisplayModule->BeginJob();
  }
}

//......................................................................

void JobCDisplayModule::EndJob() 
{
//======================================================================
// Executed at the end of a job
//======================================================================
  if (fDisplayModule) {
    fDisplayModule->EndJob();
  }
}

//......................................................................

//======================================================================
// These are just wrappers to the methods implemented by the display
// module.
//======================================================================
void JobCDisplayModule::BeginFile() 
{
  if (fDisplayModule) {
    fDisplayModule->BeginFile();
  }
}

//......................................................................

void JobCDisplayModule::EndFile() 
{
  if (fDisplayModule) {
    fDisplayModule->EndFile();
  }
}

//......................................................................

void JobCDisplayModule::BeginRun() 
{
  if (fDisplayModule) {
    fDisplayModule->BeginRun();
  }
}

//......................................................................

void JobCDisplayModule::EndRun() 
{
  if (fDisplayModule) {
    fDisplayModule->EndRun();
  }
}

//......................................................................

void JobCDisplayModule::HandleCommand(JobCommand *command)
{
//======================================================================
// Handle a parsed text command
//======================================================================
  const char* cmd = command->PopCmd();
  if (command) {
    string cmds(cmd);
    if (cmd == "Start") {
      const char* dispname = command->PopOpt();
      this->Start(dispname);
      return;
    }
    if (cmd == "Stop") {
      const char* dispname = command->PopOpt();
      this->Stop(dispname);
      return;
    }
  }
  
  // See if the displays attached know what to do with the command
  if (fDisplayModule) {
    command->PushCmd();
    fDisplayModule->HandleCommand(command);
  }
}

//......................................................................

void JobCDisplayModule::Help() 
{
  static const char* help = 
    "General Display commands:\n"
    " /Display/Start <display-name>\n"
    " /Display/Stop  <display-name>\n";
  
  MSG("JobC",Msg::kInfo) << help << endl;
  if (fDisplayModule) {
    fDisplayModule->Help();
  }
}

//......................................................................

void JobCDisplayModule::Report() 
{
  if (fDisplayModule) {
    fDisplayModule->Report();
  }
}

//......................................................................

void JobCDisplayModule::Reset() 
{
  if (fDisplayModule) {
    fDisplayModule->Reset();
  }
}

//......................................................................

JobCResult JobCDisplayModule::Get(MomNavigator* mom) 
{
  if (fDisplayModule) {
    return fDisplayModule->Get(mom);
  }
  return JobCResult::kAOK;
}

//......................................................................

JobCResult JobCDisplayModule::Put(const MomNavigator* mom) 
{
  if (fDisplayModule) {
    return fDisplayModule->Put(mom);
  }
  return JobCResult::kAOK;
}

//......................................................................

void JobCDisplayModule::Stop(const char* /* dispname */)
{
//======================================================================
// Purpose: Stop a named event display -- currently only one allowed
// at a time so "dispname" is not used
//======================================================================
  fDisplayModule->EndJob();
  delete fDisplayModule;
  fDisplayModule = 0;
}

//......................................................................

void JobCDisplayModule::Start(const char* display) 
{
//======================================================================
// Purpose: Start a named event display
//======================================================================

  // Figure out the name of the display to start - if none use default
  string disname; // name of display to start
  if (display != 0 && strlen(display)>0) {
    disname = display; // Use given name
  }
  else {
    disname = "MIDAD"; // Set default name
  }
  
  // If we have a display module active, delete it. This module could
  // in principle connect to multiple display modules, but for now
  // hard coded to be one and only one at a time.
  if (fDisplayModule) this->Stop(0);

  // Look up the proxy for the module
  JobCModuleProxy* prx = 
    JobCModuleRegistry::Instance().LookUp(disname.c_str());
  if (prx) {
    // Found the proxy - use it to create the module
    fDisplayModule = prx->CreateModule();
  }
  else {
    // No proxy found for the display module
    MSG("JobC",Msg::kWarning) << 
      "No display module '" << disname << "' found." << endl;
  }
}

---