#ifndef V4PING_HELPER_H

#define V4PING_HELPER_H

#include "node-container.h"

#include "application-container.h"

#include "ns3/object-factory.h"

namespace ns3 {

/**

 * \brief create a pinger application and associate it to a node

 *

 * This class creates one or multiple instances of ns3::V4Ping and associates

 * it/them to one/multiple node(s).

 */

class V4PingHelper

{

public:

  /**

   * Create a V4PingHelper which is used to make life easier for people wanting

   * to use ping Applications.

   *

   * \param remote The address which should be pinged

   */

  V4PingHelper (Ipv4Address remote);

  /**

   * Install a pinger application on each Node in the provided NodeContainer.

   *

   * \param nodes The NodeContainer containing all of the nodes to get a V4Ping

   *              application.

   *

   * \returns A list of pinger applications, one for each input node

   */

  ApplicationContainer Install (NodeContainer nodes) const;

  /**

   * Install a pinger application on the provided Node.  The Node is specified

   * directly by a Ptr<Node>

   *

   * \param node The node to install the V4PingApplication on.

   *

   * \returns An ApplicationContainer holding the pinger application created.

   */

  ApplicationContainer Install (Ptr<Node> node) const;

  /**

   * Install a pinger application on the provided Node.  The Node is specified

   * by a string that must have previosly been associated with a Node using the

   * Object Name Service.

   *

   * \param nodeName The node to install the V4PingApplication on.

   *

   * \returns An ApplicationContainer holding the pinger application created.

   */

  ApplicationContainer Install (std::string nodeName) const;

  /**

   * \brief Configure ping applications attribute 

   * \param name   attribute's name

   * \param value  attribute's value

   */

  void SetAttribute (std::string name, const AttributeValue &value);

private:

  /**

   * \internal

   */

  Ptr<Application> InstallPriv (Ptr<Node> node) const;

  ObjectFactory m_factory;

};

} // namespace ns3

#endif /* V4PING_HELPER_H */