File transfer and rmi java

This blog shows how to implement a file transfer using remote capable input and output streams and how to improve the performance in WAN scenarios where network connections even with good bandwidth still suffer from high latency. Java Remote Method Invocation RMI is a very easy and proven way to implement client-server or process-process communication. And since Java 1. RMI works using call by value. Instances are serialized if they are not itself remote able objects implement the Remote interface , in the later case a reference is transferred.

Now how can RMI be used to allow for remote streaming? InputStream and OutputStream are abstract classes and only a few methods have to be implemented a full implementation may add methods like skip, mark, flush, etc. Input parameters cannot be modified so InputStream.

A RMI suitable variant could be:. SocketException: Broken pipe. Will it make the file read faster if its done using multiple threads using FileChannel?

You guys need to set the size for the buffer as the same as your file, also fileSize, the best solution. Skip to content. Sign in Sign up. Instantly share code, notes, and snippets. Created May 14, Code Revisions 1 Stars 59 Forks Embed What would you like to do?

Embed Embed this gist in your website. Share Copy sharable link for this gist. Follow up to previous post. I have attached a screenshot of the RMI registry and server running, plus the 2 batch files for jwenting's benefit as he said I wasn't running them. I just need to work out how to run FTP commands using the inetfactory. Any ideas why the connection is not starting, i think it's something to do with the FTP not seeing the server running despite it being set up as a ServerSocket on port Click here for screenshot as mentioned You can't have it both ways.

Either you use RMI and the ports it gives you, or you code your own sockets implementation and use whatever port you want.

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It's also possible that there was a typo when posting the URL. We redirect you to this notice instead of stripping out the link to preserve the integrity of the post. Hi All. It must use the following commands: list - list files in current directory cd - change directory get filename - copy file from server to client put - upload file from client to server bye - close connection In essence, a FTPServer Factory has to be created which i'm guessing would use the rmi registry to handle requests between the client and server.

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