With the explosive growth of internet and network services, there is always a proliferation for distributed application that seek to leverage the power of the internet. Remote method invocation is now increasingly being used in Internet based applications and hence it is important to study the performance parameters of RMI. RMI is the action of invoking a method of a remote interface on a remote object. The three methods of RMI namely General , Activation and Custom Socket Factory are to be evaluated empirically using parameters like Round trip time , Latency and Packets per Unit time. The graph plotted allows us to gain an insight into the performance aspects and other tradeoffs of RMI. The General method deals with invoking any method directly from memory of the remote machine. RMI Activation allows passive objects to be brought into the active state by instantiating it on an as needed basis. Custom socket factory method allows customization of socket depending on the type and amount of data to be transferred over the channel. It is proposed to implement security for the data being transferred using Rijndael Algorithm that imparts security due to its high resistance to attacks, code compactness and design simplicity. Search mechanism is also to be implemented in the GUI, which has user-friendly access to the three methods of RMI and displays the results of the evaluation. Performance_Evaluation_Of_RMI
EXISTING SYSTEM:
Invocation of a remote object can be achieved by means of the existing methods namely: General, Activation and Custom Socket factory method, the server creates a number of remote objects, makes references to those remote objects accessible, and waits for clients to invoke methods on those remote objects. The client gets a remote reference to one or more remote objects in the server and then invokes methods on them. The Activation method allows objects to begin execution on an as-needed basis. This mechanism provides persistent references to objects and manages the execution of object implementations. The Socket Factory method allows customized implementation of sockets to cater to the user requirements. The amount and the type of data that can be sent over the channel can be specified.
PROPOSED SYSTEM:
It is proposed to evaluate the performance of the three methods (General, Activation and Custom Socket Factory) by transferring different types of files such as text, image and video .These files are transferred using the three invocation methods and their performance is evaluated by analyzing the parameters: round trip time, latency and transmission rate. The observations are tabulated and graphs are drawn to facilitate the comparison of the three methods of remote invocation. This offers the user an insight into the best suitable method.
A Search mechanism is proposed to be implemented to locate methods when the host does not know where the method actually resides. This system is categorized into Keyword based search and Extension based search. A user friendly GUI that will hide the low level details is to be developed which will provide easier access to the three methods of invocation and will display the results of the actions performed.