src/dgraph/pool.cpp

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/*
 * Copyright 2010,
 * François Bleibel,
 * Olivier Stasse,
 *
 * CNRS/AIST
 *
 */
 
/* --------------------------------------------------------------------- */
/* --- INCLUDE --------------------------------------------------------- */
/* --------------------------------------------------------------------- */
 
/* --- DYNAMIC-GRAPH --- */
#include "dynamic-graph/pool.h"
 
#include <list>
#include <sstream>
#include <string>
#include <typeinfo>
 
#include "dynamic-graph/debug.h"
#include "dynamic-graph/entity.h"
 
using namespace dynamicgraph;
 
/* --------------------------------------------------------------------- */
/* --- CLASS ----------------------------------------------------------- */
/* --------------------------------------------------------------------- */
 
PoolStorage *PoolStorage::getInstance() {
  if (instance_ == 0) {
    instance_ = new PoolStorage;
  }
  return instance_;
}
 
void PoolStorage::destroy() {
  delete instance_;
  instance_ = NULL;
}
 
PoolStorage::~PoolStorage() {
  dgDEBUGIN(15);
 
  for (Entities::iterator iter = entityMap.begin(); iter != entityMap.end();
       // Here, this is normal that the next iteration is at the beginning
       // of the map as deregisterEntity remove the element iter from the map.
       iter = entityMap.begin()) {
    dgDEBUG(15) << "Delete \"" << (iter->first) << "\"" << std::endl;
    Entity *entity = iter->second;
    deregisterEntity(iter);
    delete (entity);
  }
  instance_ = 0;
  dgDEBUGOUT(15);
}
 
/* --------------------------------------------------------------------- */
void PoolStorage::registerEntity(const std::string &entname, Entity *ent) {
  Entities::iterator entkey = entityMap.find(entname);
  if (entkey != entityMap.end())  // key does exist
  {
    throw ExceptionFactory(
        ExceptionFactory::OBJECT_CONFLICT,
        "Another entity already defined with the same name. ",
        "Entity name is <%s>.", entname.c_str());
  } else {
    dgDEBUG(10) << "Register entity <" << entname << "> in the pool."
                << std::endl;
    entityMap[entname] = ent;
  }
}
 
void PoolStorage::deregisterEntity(const std::string &entname) {
  Entities::iterator entkey = entityMap.find(entname);
  if (entkey == entityMap.end())  // key doesnot exist
  {
    throw ExceptionFactory(ExceptionFactory::OBJECT_CONFLICT,
                           "Entity not defined yet. ", "Entity name is <%s>.",
                           entname.c_str());
  } else {
    dgDEBUG(10) << "Deregister entity <" << entname << "> from the pool."
                << std::endl;
    deregisterEntity(entkey);
  }
}
 
void PoolStorage::deregisterEntity(const Entities::iterator &entity) {
  entityMap.erase(entity);
}
 
Entity &PoolStorage::getEntity(const std::string &name) {
  dgDEBUG(25) << "Get <" << name << ">" << std::endl;
  Entities::iterator entPtr = entityMap.find(name);
  if (entPtr == entityMap.end()) {
    DG_THROW ExceptionFactory(ExceptionFactory::UNREFERED_OBJECT,
                              "Unknown entity.", " (while calling <%s>)",
                              name.c_str());
  } else
    return *entPtr->second;
}
 
const PoolStorage::Entities &PoolStorage::getEntityMap() const {
  return entityMap;
}
 
bool PoolStorage::existEntity(const std::string &name) {
  return entityMap.find(name) != entityMap.end();
}
 
bool PoolStorage::existEntity(const std::string &name, Entity *&ptr) {
  Entities::iterator entPtr = entityMap.find(name);
  if (entPtr == entityMap.end())
    return false;
  else {
    ptr = entPtr->second;
    return true;
  }
}
 
void PoolStorage::clearPlugin(const std::string &name) {
  dgDEBUGIN(5);
  std::list<Entity *> toDelete;
 
  for (Entities::iterator entPtr = entityMap.begin(); entPtr != entityMap.end();
       ++entPtr)
    if (entPtr->second->getClassName() == name)
      toDelete.push_back(entPtr->second);
 
  for (std::list<Entity *>::iterator iter = toDelete.begin();
       iter != toDelete.end(); ++iter)
    delete (Entity *)*iter;
  dgDEBUGOUT(5);
}
 
/* --------------------------------------------------------------------- */
 
#include <dynamic-graph/entity.h>
 
void PoolStorage::writeGraph(const std::string &aFileName) {
  size_t IdxPointFound = aFileName.rfind(".");
  std::string tmp1 = aFileName.substr(0, IdxPointFound);
  size_t IdxSeparatorFound = aFileName.rfind("/");
  std::string GenericName;
  if (IdxSeparatorFound != std::string::npos)
    GenericName = tmp1.substr(IdxSeparatorFound, tmp1.length());
  else
    GenericName = tmp1;
 
  /* Opening the file and writing the first comment. */
  std::ofstream GraphFile(aFileName.c_str(), std::ofstream::out);
  GraphFile << "/* This graph has been automatically generated. " << std::endl;
  GraphFile << " */" << std::endl;
  GraphFile << "digraph \"" << GenericName << "\" { ";
  GraphFile << "\t graph [ label=\"" << GenericName
            << "\" bgcolor = white rankdir=LR ]" << std::endl
            << "\t node [ fontcolor = black, color = black,"
            << "fillcolor = gold1, style=filled, shape=box ] ; " << std::endl;
  GraphFile << "\tsubgraph cluster_Entities { " << std::endl;
 
  GraphFile << "\t} " << std::endl;
 
  for (Entities::iterator iter = entityMap.begin(); iter != entityMap.end();
       ++iter) {
    Entity *ent = iter->second;
    GraphFile << "\"" << ent->getName() << "\""
              << " [ label = \"" << ent->getName() << "\" ," << std::endl
              << "   fontcolor = black, color = black, fillcolor=cyan,"
              << " style=filled, shape=box ]" << std::endl;
    ent->writeGraph(GraphFile);
  }
 
  GraphFile << "}" << std::endl;
 
  GraphFile.close();
}
 
void PoolStorage::writeCompletionList(std::ostream &os) {
  for (Entities::iterator iter = entityMap.begin(); iter != entityMap.end();
       ++iter) {
    Entity *ent = iter->second;
    ent->writeCompletionList(os);
  }
}
 
static bool objectNameParser(std::istringstream &cmdparse, std::string &objName,
                             std::string &funName) {
  const int SIZE = 128;
  char buffer[SIZE];
  cmdparse >> std::ws;
  cmdparse.getline(buffer, SIZE, '.');
  if (!cmdparse.good())  // The callback is not an object method
    return false;
 
  objName = buffer;
  // cmdparse.getline( buffer,SIZE );
  // funName = buffer;
  cmdparse >> funName;
  return true;
}
 
SignalBase<sigtime_t> &PoolStorage::getSignal(std::istringstream &sigpath) {
  std::string objname, signame;
  if (!objectNameParser(sigpath, objname, signame)) {
    DG_THROW ExceptionFactory(ExceptionFactory::UNREFERED_SIGNAL,
                              "Parse error in signal name");
  }
 
  Entity &ent = getEntity(objname);
  return ent.getSignal(signame);
}
 
PoolStorage *PoolStorage::instance_ = 0;