Algorithm for rmi program

Stub: Stub is a gateway for client program which is used to communicate with skeleton object, by establishing a connection between them. Skeleton: Resides on Server program which is used for passing the request from stub to the remote interface. How communication and process takes place in RMI:. Skip to content. Change Language. Related Articles. Table of Contents. Improve Article. Save Article.

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Software Engineering. Web Technology. Cyber Security. C Programming. Control System. Data Mining. Data Warehouse. Here is the source code for client. ComputePi , the main client class:. Like the ComputeEngine server, the client begins by installing a security manager. This step is necessary because the process of receiving the server remote object's stub could require downloading class definitions from the server. For RMI to download classes, a security manager must be in force.

After installing a security manager, the client constructs a name to use to look up a Compute remote object, using the same name used by ComputeEngine to bind its remote object. Also, the client uses the LocateRegistry. The value of the first command-line argument, args[0] , is the name of the remote host on which the Compute object runs. The client then invokes the lookup method on the registry to look up the remote object by name in the server host's registry.

The particular overload of LocateRegistry. You must use an overload that has an int parameter if the registry is created on a port other than Next, the client creates a new Pi object, passing to the Pi constructor the value of the second command-line argument, args[1] , parsed as an integer. This argument indicates the number of decimal places to use in the calculation. Finally, the client invokes the executeTask method of the Compute remote object.

The object passed into the executeTask invocation returns an object of type BigDecimal , which the program stores in the variable result. Finally, the program prints the result. The following figure depicts the flow of messages among the ComputePi client, the rmiregistry , and the ComputeEngine. The Pi class implements the Task interface and computes the value of to a specified number of decimal places. For this example, the actual algorithm is unimportant.