How does InputStream buffer work?

Question

I'm using a InputStream buffer as following. I'd like to know when it is actually buffering (filling itself with data)... I'm feeding it with internet stream. I put Logs before and after len = in.read(buffer) but they are logged in the same time (so the process is not here).

    conn = new URL(StringUrls[0]).openConnection();
    conn.setReadTimeout(5000);
    conn.setConnectTimeout(5000);
    in = conn.getInputStream();
    int len=-1;
    buffer = new byte[1024];

    Log.v("buffer", "buffering...");

    len = in.read(buffer);

    Log.v("buffer", "buffered");

Can you please share the logs ? I am expecting there is a minute difference in milliseconds — Jaffar Ramay
– Jaffar Ramay, Commented Jan 22, 2014 at 15:58

pisek · Accepted Answer · 2014-01-22 15:57:32Z

2

http://docs.oracle.com/javase/7/docs/api/java/io/InputStream.html#read(byte[]) states:

This method blocks until input data is available, end of file is detected, or an exception is thrown.

In other words, it is being filled when it has the data to be filed with. When you open a connection, the data are ready to be read. That is why InputStream does not have to wait for anything.

answered Jan 22, 2014 at 15:57

pisek

1,4451 gold badge13 silver badges27 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How does InputStream buffer work?

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related