dbTaskDispatcher.h

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#ifndef _DB_TASK_DISPATCHER_H_
#define _DB_TASK_DISPATCHER_H_

#include <vector>
#include <string>
#include <map>

#include "plugin.h"

namespace db_planner {
  class DatabaseManager;
  class TaskRecord;
}

namespace graspit_dbase_tasks {

class DBTask;
class DBTaskDispatcher;

class DBTaskCreator
{
public:
  virtual DBTask* operator()(DBTaskDispatcher *disp, db_planner::DatabaseManager *mgr, db_planner::TaskRecord rec) = 0;
};


class DBTaskDispatcher : public Plugin
{
 public:
  enum Status {READY, NO_TASK, ERROR, RUNNING, DONE};
 private:
  std::map<std::string,DBTaskCreator*> mTaskCreators;

  db_planner::DatabaseManager *mDBMgr;

  DBTask *mCurrentTask;
  
  Status mStatus;

  int mCompletedTasks;

  int mMaxTasks;

  std::vector<std::string> mAcceptedTaskTypes;

  int connect(std::string host, int port, std::string username, 
              std::string password, std::string database);
  
public:
  DBTaskDispatcher();
  ~DBTaskDispatcher();

  int init(int argc, char **argv);
  
  void checkCurrentTask();

  void startNewTask();

  void registerTaskCreator(std::string task_name, DBTaskCreator* creator)
  {
    mTaskCreators[task_name] = creator;
    mAcceptedTaskTypes.push_back(task_name);
  }

  int mainLoop();
  
  Status getStatus() const {return mStatus;}
};

} //namespace dbase_tasks

#endif