How can I implement a download rate limited in Java?

Question

I'm going to implement a (simple) downloader application in Java as a personal exercise. It is going to run several jobs in different threads, in a way that I will be downloading a few files at the same time at all times during execution.

I want to be able to define a download rate limit that is shared between all the download jobs, but I don't know how to do it even for a single download task. How should I go about doing this? What are the solutions I should try implementing?

Thanks.

Answer 1

1. Decide how much bandwidth you want to use, in bytes/second.
2. Establish the delay of the network path to the target, in seconds.
3. Multiply to get an answer in bytes (bytes/second * seconds = bytes).
4. Divide by the number of concurrent connections.
5. Set the socket receive buffer of each connection to this number.