source: source/ariba/AribaModule.h@ 4987

// [License]

// The Ariba-Underlay Copyright

//

// Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)

//

// Institute of Telematics

// UniversitÀt Karlsruhe (TH)

// Zirkel 2, 76128 Karlsruhe

// Germany

//

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are

// met:

//

// 1. Redistributions of source code must retain the above copyright

// notice, this list of conditions and the following disclaimer.

// 2. Redistributions in binary form must reproduce the above copyright

// notice, this list of conditions and the following disclaimer in the

// documentation and/or other materials provided with the distribution.

//

// THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND

// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR

// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

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// Telematics.

// [License]



#ifndef ARIBAMODULE_H_

#define ARIBAMODULE_H_



#include <string>

#include <vector>



using std::vector;

using std::string;



// forward declaration

namespace ariba {

        class AribaModule;

        class SideportListener;

}



// local includes

#include "Name.h"

#include "Module.h"



namespace ariba {



namespace communication {

class EndpointDescriptor;

class NetworkLocator;

}

namespace communication {

class BaseCommunication;

}



/**

 * This class implements a container class for ariba base services. Each node

 * is a running using this base-module. It also manages Bootstrap information

 * in a abstract simple way.

 *

 *        +---+   +---+

 *        |N1 |   |N2 |

 *     +--|   |---|   |--+

 *     |  +---+   +---+  |

 *     |                 |

 *     |     AribaModule |

 *     +-----------------+

 *

 * N1, N2 are nodes.

 *

 * @author Sebastian Mies <mies@tm.uka.de>

 * @author Christoph Mayer <mayer@tm.uka.de>

 */

class AribaModule: public Module {

        friend class Node;

public:

        /**

         * Constructor of the ariba underlay module

         */

        AribaModule();



        /**

         * Destructor of the ariba underlay module

         */

        virtual ~AribaModule();



        /**

         * Returns all known bootstrap endpoints to this ariba module in

         * a human-readable string. This information can be used by other

         * nodes for bootstraping. It may also be used to publish this info

         * to other nodes via the web, for example.

         *

         * @param The name of the spovnet

         * @return A human-readable string containing all known bootstrap

         *   information known to this module.

         */

        string getBootstrapHints(const Name& spoVNetName = Name::UNSPECIFIED) const;



        /**

         * Adds bootstrap hints to the local database. The format of the string

         * must is the same as returned by <code>getBootstrapInfo</code>.

         *

         * @param bootinfo A string containing bootstrap information.

         */

        void addBootstrapHints(string bootinfo);



        /**

         * Register a sideport for sniffing on communication events

         * and get advanced information. The sniffer is attached to

         * every node that is created on the module. Only one such

         * sniffer can be active system-wide, a new call to this

         * register function will only attach the sniffer to nodes

         * created after the registration call.

         *

         * @param sideport The SideportListener to integrate

         */

        void registerSideportListener(SideportListener* sideport);



        // --- module implementation ---



        /**

         * Module Property information:

         *

         * ip.addr  = preferred ip address (otherwise bind to all)

         * tcp.port = preferred tcp port (or use default value)

         * udp.port = preferred udp port (or use default value)

         * bootstrap.hints = used bootstrap hints

         * bootstrap.file  = used file for bootstrap information

         */

        void initialize();                          ///< @see Module.h

        void start();                               ///< @see Module.h

        void stop();                                ///< @see Module.h

        string getName() const;                     ///< @see Module.h

        void setProperty(string key, string value); ///< @see Module.h

        const string getProperty(string key) const; ///< @see Module.h

        const vector<string> getProperties() const; ///< @see Module.h



private:

        // bootstrap node

        class BootstrapNode {

        public:

                inline BootstrapNode() :

                        timestamp(0), desc(NULL) {



                }

                inline BootstrapNode(const BootstrapNode& copy) :

                        timestamp(copy.timestamp), desc(copy.desc) {

                }

                inline BootstrapNode(uint32_t timestamp,

                                communication::EndpointDescriptor* desc) :

                        timestamp(timestamp), desc(desc) {

                }

                uint32_t timestamp;

                communication::EndpointDescriptor* desc;

        };



        // bootstrap info

        class BootstrapInfo {

        public:

                BootstrapInfo() :

                        spovnetName(), nodes() {

                }



                BootstrapInfo(const BootstrapInfo& copy) :

                        spovnetName(copy.spovnetName), nodes(copy.nodes) {

                }



                Name spovnetName;

                vector<BootstrapNode> nodes;

        };

        vector<BootstrapInfo> bootstrapNodes;



protected:

        // members

        string bootstrapFile; //< file with bootstrap information

        bool started; //< flag, if module has been started



        // bootstrap node management

        void addBootstrapNode(const Name& spovnet,

                        communication::EndpointDescriptor* desc);

        const communication::EndpointDescriptor* getBootstrapNode(

                        const Name& spovnet) const;



        communication::BaseCommunication* base_comm;

        SideportListener* sideport_sniffer;



        // TODO: use "abstract" representations here!

        communication::NetworkLocator* ip_addr;

        uint16_t tcp_port, udp_port;

};



} // namespace ariba



#endif /* ENVIRONMENT_H_ */