Agent for communication between a manager and at least one resource, and tool library for creating the agent

1. A tool library embedded in a computer readable storage medium for creating a communication agent ( 10 ) for communication between a manager ( 20 ) and at least one resource ( 30 ) of a data processing system, the tool library comprising a command for creating a protocol core ( 111 ) as an executable program of the communication agent, ( 10 ) wherein the protocol core manages the at least one resource, said command being created from a formalized description of the at least one resource; and at least one development support function, which allows a user to develop methods ( 12 ) for at least one of communicating with the protocol core ( 111 ) updating at least one instance of a model ( 11 ) of the at least one resource ( 30 ), and using a mode to read the at least one instance of the model ( 11 ) of the at least one resource ( 30 ), wherein if the mode for obtaining the instance is “direct” mode, the protocol core ( 111 ) of the agent constructs, then sends a request for a response to the manager wherein the request includes a value of the instance existing in the model of the resource it manages; and if the mode for obtaining the instance is “signal” mode, the protocol core of the agent constructs, then sends a message to the method corresponding to the instance, in order to obtain the value of the at least one instance.

2. A process for communication between a manager and at least one resource using an agent having a protocol core ( 111 ) created automatically from a formalized description of at least one resource ( 30 ), said core ( 111 ) comprising in compiled form a first interface ( 14 ) for communicating with the manager ( 20 ) and a model ( 11 ) of at least one resource ( 30 ) comprising values of instances of at least one resource ( 30 ), said values being accessible by the manager ( 20 ) through the first communication interface ( 14 ) comprising:

a first step for sending a request from the manager ( 20 ) to the at least one resource ( 30 ) in order to read information of the at least one resource ( 30 ), and

a second step for decoding the request by the core ( 111 ) of the agent ( 10 ) in order to determine an instance corresponding to the desired information and a mode for obtaining this instance; wherein if the mode for obtaining the instance is “direct” mode, the protocol core ( 111 ) of the agent constructs, then sends a request for a response to the manager wherein the request includes a value of the instance existing in the model of the resource it manages; and if the mode for obtaining the instance is “signal” mode, the protocol core of the agent constructs, then sends a message to the method corresponding to the instance, in order to obtain the value of the instance.

3. A data processing system including a manager, at least one resource and an agent for communication between the manager and the resource, characterized in that the agent embedded in a computer readable storage medium comprises a protocol core ( 111 ) created automatically from a formalized description of the resource ( 30 ), said core ( 111 ) comprising in compiled form a first interface ( 14 ) for communicating with the manager ( 20 ) and a model ( 11 ) of the resource ( 30 ) comprising the values of the instances of the resource ( 30 ), said values being accessible by the manager ( 20 ) through the first communication interface ( 14 ); and at least one development support function, which allows a user to develop methods ( 12 ) for at least one of communicating with the protocol core ( 111 ), updating at least one instance of the model ( 11 ) of the resource ( 30 ), and using a mode to read the at least one instance of the model ( 11 ) of the resource ( 30 ), wherein if the mode for obtaining the instance is “direct” mode, the protocol core ( 111 ) of the agent constructs, then sends a request for a response to the manager wherein the request includes a value of the instance existing in the model of the resource it manages; and if the mode for obtaining the instance is “signal” mode, the protocol core of the agent constructs, then sends a message to the method corresponding to the instance, in order to obtain the value of the at least one instance.