database_loader.h

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/* Author: Connor Brew */

#ifndef WAREHOUSE_ROS_DATABASE_LOADER_
#define WAREHOUSE_ROS_LOADER_

#include <boost/scoped_ptr.hpp>
#include <warehouse_ros/database_connection.h>
#include <pluginlib/class_loader.h>

namespace warehouse_ros
{

class DBConnectionStub : public DatabaseConnection
{
public:
  bool setParams(const std::string& host, unsigned port, float timeout)
  {
    return false;
  }
  bool setTimeout(float timeout)
  {
    return false;
  }
  bool connect()
  {
    return false;
  }
  bool isConnected()
  {
    return false;
  }
  void dropDatabase(const std::string& db_name)
  {
    throw warehouse_ros::DbConnectException("Database is stub");
  }
  std::string messageType(const std::string& db_name, const std::string& collection_name)
  {
    throw warehouse_ros::DbConnectException("Database is stub");
  }
protected:
  typename MessageCollectionHelper::Ptr openCollectionHelper(const std::string& db_name,
                                                             const std::string& collection_name)
  {
  }
  ;
};

class DatabaseLoader
{
public:
  DatabaseLoader();

  ~DatabaseLoader();

  void initialize();

  typename DatabaseConnection::Ptr loadDatabase();

private:
  ros::NodeHandle nh_;
  boost::scoped_ptr<pluginlib::ClassLoader<warehouse_ros::DatabaseConnection> > db_plugin_loader_;
};

}

#endif