Node device, information communication system, method for managing content data, and computer readable medium

A computer program product comprising a computer readable medium having computer readable instructions stored thereon, the computer readable instructions configured to be executed as a computer program for causing a computer to function as a node device that communicates with a plurality of node devices connected via a network as part of an information communication system, and the computer functioning as the node device comprises:

• a first obtaining unit configured to obtain search information for searching the content data stored in the node device;
• a particular determination unit configured to apply a predetermined rule to determine whether the search information obtained by the first obtaining unit is required to be stored in the node device;
• a first storage unit configured to store the search information when the particular determination unit determines that the search information is required to be stored;
• a second obtaining unit configured to obtain the content data from the information communication system;
• a second storage unit configured to store the content data obtained by the second obtaining unit;
• a third storage unit configured to store the search information corresponding to the content data stored in the second storage unit;
• and
• a management unit configured to manage the content data stored in the second storage unit, based on the search information stored in at least one of the first storage unit and the third storage unit.

A computer program product comprising a computer readable medium having computer readable instructions stored thereon, the computer readable instructions configured to be executed by the computer equipped in at least one node device of a plurality of node devices connected via a network in an information communication system in which content data is stored in at least one node device and is accessible from the other of the plurality of node devices, the computer program causing the computer to perform steps-comprising:

• a first obtaining step of obtaining search information for searching content data stored in at least one node device;
• a particular determining step of applying a predetermined rule to determine whether the obtained search information is required to be stored in the node device;
• a first storing step of storing the search information, when the particular determining step determines that the search information is required to be stored;
• a second obtaining step of obtaining the content data from the information communication system;
• a second storing step of storing the content data obtained by the second obtaining step;
• a third storing step of storing the search information according to the content data stored in the second storing step;
• a managing step of managing the content data stored in the second storing step, based on the search information stored by at least one of the first storing step and the third storing step.

A method for managing a content data in an information communication system in which a plurality of node devices are connected via a network and communicate with each other, content data being stored in at least one node device and being accessible from the other node devices, the method comprising:

• a first obtaining step of obtaining search information for searching content data stored in at least one node device;
• a particular determining step of applying a predetermined rule to determine whether the obtained search information is required to be stored in the node device;
• a first storing step of storing the search information, when the particular determining step determines that the search information is required to be stored;
• a second obtaining step of obtaining the content data from the information communication system;
• a second storing step of storing the content data obtained by the second obtaining step;
• a third storing step of storing the search information according to the content data stored in the second storing step;
• a managing step of managing the content data stored in the second storing step, based on the search information stored by at least one of the first storing stem and the third storing step.